MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 DBA VERIZON BUSINESS SERVICES 1ST REVISED TITLE PAGE CANCELS ORIGINAL TITLE PAGE

THE PROVISION OF CASUAL CALLER SERVICE,

INTERIM DIAL 1 SERVICE TO CERTAIN NEW CUSTOMERS,

INTERNATIONAL INBOUND COLLECT CALLER SERVICES TO THE ,

AND ON-DEMAND SATELLITE MOBILE SERVICE.

REGULATIONS, RATES AND CHARGES APPLYING TO CASUAL CALLER SERVICE AND INTERIM DIAL-1 N SERVICE CALLS INITIATED IN THE U.S. MAINLAND, THE COMMONWEALTH OF THE NORTHERN MARIANA ISLANDS, AMERICAN SAMOA, GUAM, HAWAII, PUERTO RICO, AND THE U.S. VIRGIN ISLANDS, AND TERMINATING TO ANY IN THE UNITED STATES OR ABROAD; AND FOR INBOUND COLLECT CALLING CALLS INITIATED IN THE INTERNATIONAL LOCATIONS HEREINAFTER DEFINED AND TERMINATING IN THE UNITED STATES. N

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES, AND ON-DEMAND SATELLITE N MOBILE SERVICES ARE FURNISHED BY MEANS OF WIRE, FIBER OPTICS OR ANY OTHER SUITABLE | TECHNOLOGY, RADIO, OR A COMBINATION THEREOF. N

Original tariff effective October 1, 2005.

Issued: October 31, 2011 Effective: November 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal No. 43

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 55th REVISED PAGE NO. 1 CANCELS 54th REVISED PAGE NO. 1

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES, AND ON-DEMAND SATELLITE MOBILE SERVICE

CHECK SHEET

The Title Page and Pages 1 to 138, inclusive, of this tariff are effective as of the date shown. Original and revised pages as named below comprise all changes from the original tariff in effect on the date indicated.

Page Revision No. Page Revision No. Page Revision No.

Title 1 27 1 * 54 Original 1 55 * 28 Original 55 Original 2 44 * 29 Original 56 2 3 Original 30 Original 57 1 4 1 31 Original 58 Original 5 Original 32 Original 59 2 6 2 33 Original 60 Original 7 1 34 1 61 2 8 1 35 Original 62 Original 9 Original 36 3 63 Original 10 1 37 Original 64 Original 11 Original 38 1 65 Original 12 Original 39 Original 66 1 13 Original 40 2 67 1 14 Original 41 1 68 1 15 Original 42 Original 69 Original 16 Original 43 1 70 2 17 2 44 Original 71 Original 18 1 45 Original 72 1 19 Original 46 Original 73 Original 20 Original 47 Original 74 Original 21 Original 48 6 75 Original 22 Original 49 6 76 Original 23 Original 50 2 77 Original 24 Original 51 1 78 2 25 Original 52 Original 79 1 26 Original 53 Original 80 Original

* New or revised page.

Issued: June 26, 2014 Effective: July 1, 2014 Issued by: Vice President, Federal Regulatory 1300 I Street NW Washington, DC 20005 Transmittal # 56

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 44th REVISED PAGE NO. 2 CANCELS 43rd REVISED PAGE NO. 2

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES, AND ON-DEMAND SATELLITE MOBILE SERVICE

CHECK SHEET (Continued)

Page Revision No. Page Revision No. Page Revision No.

81 1 101 Original 121 4 82 Original 102 1 122 33 * 83 Original 103 Original 123 Original 84 1 104 Original 124 Original 85 3 105 Original 125 1 86 3 106 3 126 Original 87 3 107 Original 127 Original 88 6 108 1 128 Original 89 4 109 1 129 Original 90 4 110 Original 130 Original 91 Original 111 Original 131 1 92 Original 112 2 132 Original 93 1 113 1 133 1 94 1 114 2 134 Original 95 1 115 2 135 Original 96 Original 116 2 136 Original 97 Original 117 Original 137 Original 98 Original 118 Original 138 Original 99 Original 119 Original 100 Original 120 1

* New or revised page.

Issued: June 26, 2014 Effective: July 1, 2014 Issued by: Vice President, Federal Regulatory 1300 I Street NW Washington, DC 20005 Transmittal # 56

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 3

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

CHECK SHEET (Continued)

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ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 4 CANCELS ORIGINAL PAGE NO. 4

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

TABLE OF CONTENTS

Section Page No.

Check Sheet ...... 1

Table of Contents ...... 4 N

Concurring, Connecting or Other Participating Carriers ...... 6 T

Explanation of Symbols ...... 7 T

Explanation of State Symbols ...... 7 T

Application of Tariff ...... 8 T

Section A: Definitions ...... 9

Section B: Rules and Regulations ...... 11

1. Restrictions on the Use of Service ...... 11 2. Payment Obligations ...... 14 3. Cancellation of Service ...... 27 4. Liability ...... 31 5. Miscellaneous Provisions ...... 34

Issued: October 31, 2011 Effective: November 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal No. 43

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 5

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

TABLE OF CONTENTS (Continud)

Section Page No.

Section C: Service Description and Charges ...... 35

1. Dial-around Service (Casual Caller Service) ...... 35 1.1 Per-Minute Usage Charges ...... 36 1.2 Casual Caller Surcharge ...... 46 1.3 Operator Assisted Calls ...... 46

2. Interim Dial 1 Service ...... 47 2.1 Domestic ...... 48 2.2 International ...... 51 2.2.1 Without ...... 51 2.2.2 With Operator Assistance ...... 72 2.2.3 International Mobile Termination ...... 85 2.3 Operator Services Per Call Surcharges ...... 92 2.4 Personal 800 ...... 94 2.4.1 Personal 800 Plan R ...... 94 2.4.2 MCI Private 800 ...... 96 2.5 Relay Service (TRS) ...... 99 2.6 Text Telephone Service ...... 100

3. International Inbound Collect Call Service (Inbound Collect Calling) ...... 102 3.1 Per-Minute Usage Charges ...... 102 3.1.1 Method 1 ...... 102 3.1.2 Method 2 ...... 112 3.2 Per-Call Surcharges ...... 116

4. On-Demand Satellite Mobile Service...... 118

5. Directory Assistance ...... 120

6. Other Charges ...... 121 6.1 Carrier Access Charge ...... 121 6.2 Carrier Cost Recovery Charge ...... 121 6.3 Federal Universal Service Fee ...... 122 6.4 LEC Billing ...... 122 6.5 Paper Billing Fee ...... 122 6.6 Payphone Use Charge ...... 123

Appendix A: International Rate Period Definitions ...... 125 Appendix B: Mexico Rate Step Definitions ...... 134 Appendix C: Explanation of Types of Calls to Inmarsat Locations ...... 137 Appendix D: Mexico Service Areas ...... 138

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2ND REVISED PAGE NO. 6 CANCELS 1ST REVISED PAGE NO. 6

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

CONCURRING, CONNECTING OR OTHER PARTICIPATING CARRIERS M (x)

Concurring Carriers

None

Connecting Carriers

None

Other Participating Carriers

None M (x)

(x) Certain material on this page formerly appeared on Original Page No. 7.

Certain material previously found on this page can now be found on 1st Revised Page No. 8.

Issued: October 31, 2011 Effective: November 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal No. 43

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 7 CANCELS ORIGINAL PAGE NO. 7

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

EXPLANATION OF SYMBOLS M (x)

C - To signify changed regulation D - To signify discontinued rate or regulation I - To signify increased rate M - To signify matter relocated without change N - To signify new rate or regulation R - To signify reduced rate S - To signify reissued matter T - To signify a change in text but no change in rate or regulation Z - To signify a correction

EXPLANATION OF STATE ABBREVIATIONS

AK - Alaska IA - Iowa NY - New York AL - Alabama KS - Kansas OH - Ohio AZ - Arizona KY - Kentucky OK - Oklahoma AR - Arkansas LA - Louisiana OR - Oregon CA - California MA - Massachusetts PA - Pennsylvania CO - Colorado MD - Maryland PR - Puerto Rico CNMI ME - Maine RI - Rhode Island - Commonwealth of MI - Michigan SC - South Carolina the Northern MN - Minnesota SD - South Dakota Mariana Islands MO - Missouri TN - Tennessee CT - Connecticut MS - Mississippi TX - Texas DE - Delaware MT - Montana VI - US Virgin Islands DC - District of Columbia NC - North Carolina UT - Utah FL - Florida ND - North Dakota VT - Vermont GA - Georgia NE - Nebraska VA - Virginia HI - Hawaii NH - New Hampshire WA - Washington ID - Idaho NJ - New Jersey WI - Wisconsin IL - Illinois NM - New Mexico WV - West Virginia IN - Indiana NV - Nevada WY - Wyoming M (x)

(x) Certain material on this page formerly appeared on Original Page No. 8.

Certain material previously found on this page can now be found on 2nd Revised Page No. 6.

Issued: October 31, 2011 Effective: November 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal No. 43

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 8 CANCELS ORIGINAL PAGE NO. 8

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPLICATION OF TARIFF

This tariff contains the regulations and rates governing the relationship between MCI Communications Services, M (x) Inc. (MCI) and its Customers for: (1) Dial-Around Service (Casual Caller Service); (2) Dial-1 Service for presubscribed Customers selecting the Company through a Local Exchange Carrier (LEC) for their initial 45 days of service or until a written contract is consummated, whichever first occurs (Interim Dial-1 Service); (3) international inbound collect calling services to the United States (Inbound Collect Calling); and (4) On-Demand Satellite Mobile Service. Casual Caller Service and Interim Dial-1 Service calls may be initiated from the U.S. Mainland, the Commonwealth of the Northern Mariana Islands, American Samoa, Guam, Hawaii, Puerto Rico, and the U.S. Virgin Islands, and may terminate to any telephone in the United States or abroad. Inbound Collect Calling calls may be initiated in the international locations listed herein and terminate in the United States. M (x)

(x) Certain material on this page formerly appeared on 1st Revised Page No. 6.

Certain material previously found on this page can now be found on 1st Revised Page No. 7.

Issued: October 31, 2011 Effective: November 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal No. 43 MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 9

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION A: DEFINITIONS

Authorized User: A person, firm, corporation or other entity that either is authorized by the Customer to receive or send communications or is placed in a position by the Customer, either through acts or omissions, to send or receive communications.

Called Station: The station called, or the terminating point of a call.

Calling Party Number (CPN): The ANI associated with a Calling Station.

Calling Station: The station from which a call is originated.

Casual Caller: Denotes any person who uses Company service from an equal access end office who does not have a current account with the Company for service subject to this tariff, to include: (i) any person who has not established an account with the Company who places calls over the Company's network from an equal access area; (ii) any presubscribed Customer located in an equal access area who has either voluntarily terminated his Company account or has had his Company account terminated in accordance with the terms and conditions set forth in Sections B-3.1 and B-3.2; and (iii) new or allocated Customers whose accounts are not yet established in the Company's billing system.

Collect Call: A call for which applicable charges are billed to the telephone number of the called station of the Customer.

Commercial Service: A switched network service which provides for dial station originations for which the subscriber pays a rate that is described as a business or commercial rate in the applicable local exchange service tariff for switched service.

Company: The provider of telecommunications services governed by this tariff, namely MCI Communications Services, Inc., or any successor entity.

Customer: The person or other entity which accesses and uses service and is responsible for the payment of all applicable service charges and for compliance with all applicable provisions of this tariff. A Customer may acquire service by: (1) being presubscribed to the Company by a serving Local Exchange Carrier; (2) being a Casual Caller; (3) accepting a collect or third-party billed call; (4) being the customer of a Customer, e.g., another common carrier, whose service is disconnected by the Company; or (5) otherwise knowingly or unknowingly accessing and using service.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: January 28, 2002 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 10 CANCELS ORIGINAL PAGE NO. 10

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION A: DEFINITIONS (Continued)

Domestic Points: The U.S. Mainland, Alaska, the Commonwealth of the Northern Mariana Islands, American T Samoa, Guam, Hawaii, Puerto Rico, and the U.S. Virgin Islands.

Local Exchange Carrier (LEC): A carrier providing local exchange service through which a Customer may designate the Company as its presubscribed carrier.

Operator Station: Service other than Collect, Person-to-Person or Third Party Billing which requires the assistance of a Company operator to complete a call.

Person-to-Person: Service which requires the person originating a call to specify to the Company operator the particular person, mobile station, department, extension, or office to be reached.

Residential Service: A switched network service which provides for dial station originations for which the subscriber pays a rate that is described as a residential, non-commercial, or non-business rate in the applicable local exchange service tariff for switched service.

Third Party Billing: An optional billing procedure that permits the charges for a call to be billed to a telephone number different from either the telephone number of the calling station or the number of the called station. The person agreeing to accept a call is the Customer and is responsible for all charges related to a call and for compliance with all applicable provisions of this tariff.

Twelve O’Clock: In designated time periods, 12:00 AM refers to 12:00 Midnight and 12:00 PM refers to 12:00 Noon.

U.S. Mainland: The District of Columbia and the 48 conterminous states.

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 11

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS

1. Restrictions on the Use of Service

1.1 The Company offers its services subject to availability of facilities, limitations of service offerings, and the provisions of this tariff.

1.2 Devices for recording telephone calls between or among two or more parties may be used with service whenever a recording either is: (a) preceded by verbal or written consent of all parties to the recording of the conversation; (b) preceded by verbal notification of the recording of the conversation, which notification is recorded at the beginning, and as a part, of the call; or (c) accompanied by a distinctive recorder tone, repeated at intervals of approximately fifteen seconds, to alert all parties to the conversation that a recording device is in use. These requirements do not apply to:

1.2.1 calls involving a broadcast licensee, when there is a recording of a conversation for broadcast and: (i) the licensee informs each party to the conversation that the licensee intends to broadcast the conversation; (ii) each party to the conversation is aware that the conversation will be broadcast; or (iii) the other party or parties to the conversation may be presumed to be aware, from the circumstances of the conversation, that the conversation is likely to be broadcast;

1.2.2 recordings of incoming (and responsive outgoing) calls made to telephone numbers publicized for emergencies (such as 911);

1.2.3 recordings of calls made for patently unlawful purposes (such as bomb threats, kidnap ransom requests, and obscene calls) and outgoing calls made in response to these calls; or

1.2.4 recordings of calls pursuant to an explicit and lawful order of a court issued pursuant to 18 U.S.C. Section 2516, as amended, or any equivalent successor provision.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 12

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

1. Restrictions on the Use of Service (Continued)

1.3 Services provided by the Company will not be used:

1.3.1 For any unlawful purpose; or

1.3.2 For making telephone calls terminate into electronic information services, pay-per-call services, or other domestic or international audiotext services; or

1.3.3 For international call-back offerings using uncompleted call signaling to any country, when that country has prohibited such an offering by statute or regulatory decision; or

1.3.4 For commercial, business, or non-residential purposes, in the case of a residential Customer; for residential purposes, in the case of a commercial Customer.

1.4 The Company may (a) deny, for any lawful reason, the Customer’s request for service, or (b) limit or allocate the facilities available to or utilized by any service, if necessary, to manage its network in an efficient manner; meet reasonable service expectations; furnish service to existing and future Customers based on forecasted Customer requirements; or for any other lawful reason.

1.5 The Company may, without notice (consistent with governing laws or regulations), block traffic to or from specific countries, country codes, cities, city codes, local telephone exchanges (“NXX exchanges”), individual telephone stations, groups or ranges of individual telephone stations, or calls using certain Customer authorization codes, whenever the Company deems it necessary to take such action to prevent (1) the unlawful use of service; (2) nonpayment for service; (3) the use of service in violation of this tariff; or (4) network blockage or the degradation of service furnished to the Customer or other Customers.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 13

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

1. Restrictions on the Use of Service (Continued)

1.6 Whenever call blocking occurs on lines designated to the Company at the local telephone company’s switch, Customers or former Customers will be unable to access the Company’s network in order to make long distance and local toll calls, including, but not limited to, Interim Dial 1 Service and Casual Caller Service.

1.7 Calls may not be placed or received using Casual Caller Service, Collect, Sent Paid, or 3rd Party calling conventions whenever (1) there is no obligation on the part of the serving local telephone company to perform billing and collection on behalf of the Company; or (2) where an obligation exists on the part of the serving local telephone company to perform billing and collection on behalf of the Company, but the local telephone company fails to discharge the obligation properly; or (3) the serving local telephone company fails to furnish, or provides untimely or inadequate, billing name and address (“BNA”) to the Company; or (4) the serving local telephone company fails to furnish timely or adequate telephone number installation and disconnect information to the Company. For the purposes of this paragraph, call blocking will occur whenever the Company is unable to recover at least 60 percent of its billable revenues from Customers within a local telephone company service area during any monthly billing period as the result of unavailable, untimely, or inadequate billing and collection or as the result of unavailable, untimely, or inadequate BNA or telephone number installation and disconnect information.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 14 CANCELS ORIGINAL PAGE NO. 14

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations

2.1 The Customer is responsible for payment of all charges for services furnished to the Customer. This responsibility is not changed, by virtue of any use, misuse, or abuse of the Customer’s service or Customer-provided systems, equipment, facilities, or services interconnected to the Customer’s service, undertaken or caused by third parties, including, without limitation, the Customer’s employees or other members of the public.

2.2 The Customer must promptly notify the Company of any change in the Customer’s invoicing address or, if applicable, in the credit card or bank account used for payment. The Customer should notify the Company via Customer Service or U.S. mail to the following addresses: PO Box 4604, Iowa City, IA 52244-4604, in the case of residential Customers; or, PO Box 4656, Iowa City, IA 52244-4656, in the case of commercial Customers.

2.3 Usage charges and any recurring monthly charges are billed after each billing period. In the event the Company changes its rates, recurring monthly charges affected by such change will be assessed at the new rate for the full billing period during which the new recurring charge rate became effective.

2.4 The Company’s bills for Residential service are due upon receipt and for non-Residential Service are due within 30 days of the invoice date. Amounts not paid within 21 days of the invoice date will be considered past due and are subject to a late charge applicable in the Customer’s state. If Z the Company becomes concerned at any time about the Customer’s ability to pay for services, the Company may require that the Customer pay its charges within a specified number of days and/or that the Customer make such payments in cash or the equivalent of cash.

2.5 Company may adjust its rates and charges or impose additional rates and charges on its Customers inorer to recover amounts it is required by governmental or qualsi-governmental authorities to collect from or pay to other in support of staturory or regulatory programs. Examples of such Governmental Charges include, but are not limited to, Universal Service funding and compensation payable to payphone service providers for use of their payphones to access Company service.

Issued: October 31, 2011 Effective: November 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal No. 43

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 15

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.6 If the Customer’s telecommunications payment history is not acceptable to the Company or if the Customer’s telecommunications payment history is unknown or indeterminable, the Customer may be required, at any time, to provide (i) pre-invoice payment based on usage incurred; (ii) a valid major credit card account number from an issuer acceptable to the Company and authorization for the Company to charge usage to the Customer’s credit card account; or (iii) agreement that the Customer’s usage of the Company network and services will be subject to toll usage limits to be determined by the Company. Prior to the Customer’s compliance with this request, the Company reserves the right to cease accepting and processing service orders. The Company may request subsequent additional pre-invoice payments for usage and may increase or decrease toll usage limits as it deems appropriate. The Company may refuse to furnish services if any charges owed by the Customer to the Company or any Company affiliate are past due for service(s) provided to the Customer.

2.7 When billing and collection for the Company service is performed on the Company’s behalf by a local telephone company, the security deposit requirements, and late payment provisions set forth in the Customer’s service agreement with its local telephone company and/or in the local tariff of the local telephone company will apply to the Customer’s Company-provided service. In addition, where a local telephone company purchases the Company’s Customer receivables, late payment provisions imposed by the local telephone company will apply to the Customer’s Company service.

2.8 Recovery of Collection Costs

2.8.1 Non-Residential Service: If the Company incurs any fees or expenses, including attorney's fees, in collecting, or attempting to collect, any charges owed the Company by a non-Residential Service customer, the Customer will be liable to the Company for the payment of all such fees and expenses reasonably incurred.

2.8.2 Residential Service: If the Company hires a collection agency to collect, or attempt to collect, any charges owed the Company by a Residential Service Customer, the Customer will be liable to the Company for an additional payment equal to 35 percent of the charges owed, where permitted by applicable law. If the Company incurs any fees or expenses, including attorneys' fees, in collecting, or attempting to collect, any charges owed the Company other than by hiring a collection agency, the Customer will be liable to the Company for the payment of all such fees and expenses reasonably incurred.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, Virginia 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 16

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.9 In the event payment is made by check and the Customer’s check is not honored by the institution on which it was drawn, the Company will impose, and the Customer will be required to pay, a $15 fee, where permitted by applicable law, in addition to other remedies available to the Company.

2.10 If billing systems or other support are not available for a service, feature, surcharge, or other charge element at the time of service provision, the Company will bill for that service, feature, surcharge, or other charge element as soon as it is capable of doing so.

2.11 Taxes

2.11.1 The Company’s rates and charges for service are exclusive of the following charges that will be assessed:

2.11.1.1 applicable federal, state, local, and foreign sales, use, excise, utility, gross receipts and value added taxes;

2.11.1.2 any tax imposed by an authority on the benefits of a promotion offered by the Company involving services or goods of a third party;

2.11.1.3 other taxes;

2.11.1.4 tax-like charges to recover amounts the Company is required or permitted by a governmental or quasi-governmental authority to collect from others or pay to others in support of statutory or regulatory funds or programs;

2.11.1.5 other tax-like charges; and

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 17 CANCELS 1st REVISED PAGE NO. 17

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.11 Taxes (Continued)

2.11.1.6 a tax-related surcharge imposed on all charges (net of bad debts) for outbound service originating in, or inbound service terminating in, a jurisdiction which levies, or asserts a claim of right to levy:

A. gross receipts tax, a license tax, or other tax-like charge on the Company’s operations in that jurisdiction based on the Company’s gross receipts, revenues or operations in that jurisdiction; or

B. a tax on interstate access charges incurred by the Company for access to telephone exchanges in that jurisdiction based on the amount paid for interstate access charges in that jurisdiction; or

2.11.1.7 a tax-related surcharge in addition to the other charges for service, based on billing availability, equal to 3.0 percent of the total interstate and international I charges (including usage and non usage) after the application of applicable discounts and credits, which allows Company to recover a portion of the property tax that it pays to state and local jurisdictions.

2.11.2 All taxes, tax-like charges, and tax-related surcharges are referred to collectively as “Tax(es).” The Company may elect to impose and collect such Taxes, unless otherwise constrained by court order or direction. The Customer agrees to pay all Taxes imposed. If the Company has collected Taxes and a challenged Tax is found to have been invalid and unenforceable, and if the amounts collected were retained by the Company or delivered over to the jurisdiction and returned to the Company, the Company, in its sole discretion, may reduce service rates for a fixed period of time in the future in order to flow-through to Customers an amount equivalent to the amounts collected, credit or refund such amounts to affected Customers (less its reasonable administrative costs), or negotiate an arrangement with the jurisdiction to provide a future benefit for Customers in that jurisdiction.

2.11.3 If the Customer provides the Company with a duly authorized tax exemption certificate, the Company will exempt the Customer in accordance with law, effective on the date the Company receives the certificate.

Issued: October 17, 2008 Effective: November 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal # 26

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 18 CANCELS ORIGINAL PAGE NO. 18

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.11 Taxes (Continued)

2.11.4 Taxes based on the Company’s net income will be the Company’s sole responsibility.

2.11.5 If the Customer is required by the laws of any foreign tax jurisdiction to withhold income or profit taxes from a payment, within 90 days of the withholding, the Customer will provide the Company with official tax certificates documenting remittance of the taxes. The tax certificates shall be in a form sufficient to document qualification of the taxes for the foreign tax credit allowable against the Company’s U.S. corporation income tax, and shall be accompanied by an English translation. Upon receipt of the tax certificate, the Company will issue the Customer a credit for the amounts represented thereby.

2.12 D

D

2.13 Handling of Certain Specific Credits

2.13.1 If the Customer’s account has been closed but has a credit balance remaining, the Company will transfer the credit to another account of the Customer, if there is one. If the Customer does not have another account and if the credit balance amount is $10 or more, the Company will mail a check for the balance to the Customer. If the Customer does not have another account and if the credit balance amount is less than $10, then the Company will mail a check for the balance to the Customer upon its request, provided the Customer makes its request within 12 months of the closing of the Customer’s account.

2.13.2 Casual Caller Credit: The Company will credit Customers newly presubscribed to Company service during the period between the time of presubscription and the time of the establishment of their Interim Dial 1 account in the Company’s billing systems. The credit will be in an amount equal to: (i) the difference between the Customer's usage charges during that period assessed at (a) the rate set forth in Section C-1.1.1 and (b) the rates set forth for the Interim Dial 1 service to which the Customer subscribes in either Section C-2.1.1.1.1, Section C-2.5, and/or C-2.6; and (ii) the amount charged the Customer under Section C-1.2 during that period. To receive this credit, affected Customers must contact the Company through a toll free number designated for billing inquiries. The credit will be in the form of an invoice credit.

Issued: March 31, 2006 Effective: April 1, 2006 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 19

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.3 Directory Assistance Credits:

2.13.3.1 Customers whose telephone line is designated to the Company at the local telephone company’s switch and who have been certified in writing to be unable to access or use a manual directory because of a visual or other physical impairment are eligible to receive a credit which will be applied against the per call charge and any applicable operator assistance surcharges specified by the Company for domestic Directory Assistance calls made by dialing Area Code + 555-1212. Credits may be used by: 1) the visually or otherwise physically impaired Customer; 2) an organization established specifically for the purpose of assisting the visually or otherwise physically impaired; or 3) a business where all owner(s) and/or employees of the business on the premises at which a call originates have been certified as visually or otherwise physically impaired. Only one telephone number per location is entitled to this credit. A maximum of fifty directory assistance calls, including operator-assistance surcharges, per monthly billing period will be eligible for the credit. The actual credit for any one call to directory assistance (including operator-assistance surcharges) will not exceed $5.

2.13.3.2 A credit allowance will be given, or the charge that would otherwise apply will be waived, when (a) the Customer experiences poor transmission or is cut off during a call to Directory Assistance, or (b) the Customer is given an incorrect telephone number by a Directory Assistance operator. To obtain such a credit/waiver, the Customer must notify the Company.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 20

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.4 Promotional and other credits offered by the Company in the marketing of its services cannot be assigned, but must be used by the entity to which they were offered and that earned them in strict accordance with the terms of the offer.

2.13.5 In the event that the Customer has been awarded a promotional credit for subscribing to the Company service and does not use the service within 12 months following the date of the Customer’s service order, the Company reserves the right to cancel the credit from the Customer’s account and collect the sum involved from the Customer.

2.13.6 Except as provided in Sections B.12.3 above pertaining to Directory Assistance, the following credit allowances for interruptions of the Company services will be made:

2.13.6.1 For all of the Company’s domestic services for which charges are specified on the basis of per minute of use, or on usage of a fraction of a minute, and in which there may be interruption of an individual call, due to a condition in the Company’s shared interexchange facilities or in shared access or termination facilities provided by other carriers, which interruption can be remedied by redialing the call:

A. A credit allowance will be made for that portion of a call that is interrupted due to poor transmission (for example, noisy circuit), one way transmission (one party is unable to hear the other), or involuntary disconnection caused by deficiencies in the Company’s service. The Customer may also be granted credit for reaching a wrong number. To receive a credit, the Customer must notify a Company Customer Service representative and furnish information, including the called number, the service subscribed to, the difficulty experienced, and the approximate time the call was placed.

B. Where a call has been disconnected, the Customer will be given a credit allowance equivalent to the charge for the initial minute of the call made to reestablish communications with the other party. If the Customer reaches a wrong number, the Customer will be given a credit allowance equivalent to the charge for the initial minute of the call to the wrong number if the Customer reports the situation promptly to a Customer Service Representative. This credit allowance for reaching wrong numbers is limited to an aggregate total of $100 over a 12-month period.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 21

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.6 (Continued)

2.13.6.2 For interruptions in service due to the performance of the telecommunications network furnishing the Company service where such interruptions exceed an individual call and cannot be remedied by redialing the call, the Customer will be given a credit allowance for an interruption subject to conditions related to location, timing, and other pertinent conditions. To receive a credit, the Customer must notify a Company Customer Service representative and furnish information, including the called number, the service subscribed to, the difficulty experienced, and the approximate time of the service interruption.

2.13.7 No credit allowances will be made for:

2.13.7.1 Interruptions caused by the Customer’s negligence or the negligence of others authorized by the Customer to use the Customer’s Company-provided service.

2.13.7.2 Interruptions due to the failure of power, equipment, systems, or services not provided by the Company.

2.13.7.3 Interruptions during any period during which the Company or its agents are not afforded access to the premises where access lines associated with the Customer’s services are terminated.

2.13.7.4 Interruptions during any period when the Customer has released the service to the Company for maintenance or rearrangement purposes, or for the implementation of the Customer’s order.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 22

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.7 No credit allowances will be made for (Continued):

2.13.7.5 Interruptions during periods when the Customer elects not to release the service for testing or repair and continues to use it on an impaired basis.

2.13.7.6 Noncompletion of calls due to network busy conditions.

2.13.7.7 Interruptions not reported to the Company.

An interruption period begins when the Customer reports to the Company that the service has been interrupted and releases it for testing and repair. An interruption period ends when the service is operative again. If the Customer reports the service to be inoperative but declines to release it for testing and repair, the service is deemed to be impaired, but not interrupted. If the Customer elects to use another means of communication during the period of interruption, the Customer must pay the charges for the alternative service used.

2.13.8 Fraud Credits

2.13.8.1 The Company will issue full credit for invoiced charges for Customer calls when the charges are determined to result from a “theft of service” (for example, unauthorized usage following the involuntary theft or loss of a Company product or the establishment of service that the Customer did not intentionally facilitate) involving (a) Company PCS, cellular, or services; (b) verified “Clip-on Fraud” associated with equal access service (1010XXX or 1+/0+/0-); or (c) theft of identity or theft of service. To qualify for credit, the Customer must notify Company in writing within 90 days of receipt of an invoice containing alleged fraudulent charges. In the event a PCS or cellular phone or pager is lost or stolen, Customer must notify the Company immediately. The Company will then credit Customer for all charges incurred during a 48-hour time period beginning with the first fraudulent call made. The Company will not issue credit for invoiced charges for fraudulent use resulting from the negligent or willful acts of the Customer or an authorized user of the Customer’s service.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 23

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.8 Fraud Credits (Continued)

2.13.8.2 Remote Toll Fraud Program (applies to commercial Customers only)

A. Remote Toll Fraud is defined as:

A.1 unauthorized outbound calls to international locations (including all international locations that utilize the North American Dialing Plan) placed via remote accessing of the Customer’s PBX or single electronic key system, where such equipment is located on the Customer’s premises within the U.S. mainland, Hawaii, Puerto Rico, and the U.S. Virgin Islands (“CPE”) (CPE does not include CPE not owned or leased or under the direct control of the Customer); or

A.2 unauthorized use of the Company domestic 800 inbound services, excluding 800 services terminating at any international location.

Remote Toll Fraud does not include any calls placed by means of access or PCS or cellular calls, 1010XXX calls, calls placed by means of operator service, calls accessing the network by dialing 0- or 0+ for network access, toll-free or pay-per-call traffic, or unauthorized usage as defined in (A.1) or (A.2) above that is placed via any non- Company conference service or Centrex systems.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 24

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.8 Fraud Credits (Continued)

2.13.8.2 Remote Toll Fraud Program (Continued)

B. Customers complying with the following provisions will be eligible to receive the limit on liability for Remote Toll Fraud usage charges as set forth in Section B.2.12.8.2.C below:

B.1 Company will notify the Customer of suspected Remote Toll Fraud by calling, faxing, or paging the Customer at the notification number given to the Company by the Customer. The Customer will provide the Company with 7x24 hours contact information, including, if necessary, pager and off-hours notification numbers. This information must be furnished initially by the Customer and updated, as necessary, in order for the Customer to become, and remain, eligible to receive benefits under the Program. The Customer will provide follow up information regarding the nature of any potentially fraudulent usage within forty-eight (48) hours of a Company notification to the Customer.

B.2 Customer will notify the Company of suspected Remote Toll Fraud by calling the Company’s Fraud Prevention Center or its Account Team representative. Customer will immediately notify the Company any time suspected Remote Toll Fraud is detected, even if Company’s network is not impacted.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 25

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.8 Fraud Credits (Continued)

2.13.8.2 Remote Toll Fraud Program (Continued)

B. (Continued)

B.3 Customer must identify to the reasonable satisfaction of the Company all alleged Remote Toll Fraud usage charges in writing to the Company within 90 days after the date of the first Company invoice that contains the usage charges in question. Any claim for alleged Remote Toll Fraud submitted after this 90 day period will not be considered for credit. In addition, Customer will notify the Company in writing within 60 days of the termination of the Remote Toll Fraud incident, identifying to the Company in such notice (a) the means by which such fraud occurred, if known, and (b) the changes made to the CPE in question to stop Remote Toll Fraud.

B.4 During the Company’s investigation of Remote Toll Fraud, the Company reserves the right to obtain specific password information used to access the CPE in question. Customer will fully cooperate with the Company’s efforts to stop Remote Toll Fraud, including, but not limited to, providing the Company access to the CPE in question within 24 hours of the Company’s request; permitting the Company to investigate current and/or former configuration of the CPE in question; and permitting the Company, within 12 hours of the termination of the suspected Remote Toll Fraud, to inspect the CPE location, if requested. Under no circumstance will the CPE configuration be, or be deemed to be, the responsibility of the Company.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 26

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

2. Payment Obligations (Continued)

2.13 Handling of Certain Specific Credits (Continued)

2.13.8 Fraud Credits (Continued)

2.13.8.2 Remote Toll Fraud Program (Continued)

C. Eligible Customers will be liable for up to the first $10,000, per incident, of Remote Toll Fraud usage charges for calls that commence prior to either the Customer notifying the Company or the Company notifying the Customer. For purposes of this section notirication is defined as (i) notice to the Customer from an authorized representative of the Company’s Fraud Prevention organization or Account Team representative of suspected Remote Toll Fraud. The Customer is liable for all Remote Toll Fraud usage charges incurred after Customer notifies the Company or the Company notifies the Customer. This program will not cover any CPE Remote Toll Fraud usage charges resulting from the negligent or intentional acts of the Customer, its employees, agents, vendors or independent contractors.

C.1 The liability cap per incident will not cover the impacted CPE, or any other CPE connected to the CPE in question, until a “30-day fraud-free period” has occurred since the date of the last fraudulent call during the last incident affecting the CPE in question, as certified by Company.

C.2 To the extent the Company reduces or otherwise does not collect any Remote Toll Fraud usage charges for which the Customer would have been liable if the Company did not offer the Remote Toll Fraud Program, the Company will be subrogated to any and all rights of the Customer with respect to any associated claims against third parties (including, but not limited to, any persons who made the unauthorized calls).

D. Failure by the Customer to comply with any of its obligations under the Remote Toll Fraud Program will disqualify the Customer from current and future participation in the Remote Toll Fraud Program at all Customer locations.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 27 CANCELS ORIGINAL PAGE NO. 27

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

3. Cancellation of Service

3.1 By the Customer

3.1.1 Customer may cancel service at any time by contacting the Company’s Customer Service. The Customer’s account will be canceled upon request. While the Company will cancel service, Customer must contact a new long distance carrier of choice of local telephone company to ensure Customer is no longer presubscribed to the Company on (Z) the local telephone company’s network. Any calls received by the Company over its (Z) network during the period between the date of cancellation of Customer’s account and the Customer’s billing cycle end date will be rated and billed at Customer’s prior calling plan rates. After Customer’s billing cycle ends, any calls will be rated and billed at Interim Dial 1 rates set forth in Section C-2, with no monthly plan fee or minimum for a period of up to 60 days from the date Customer’s account was canceled. This period is designed to permit Customer ample time to select a new carrier. The Company will block all calls (Z) on the Company’s network placed from Customer location(s) between days 61 and day (Z) 120 following the date Company long distance billing account was canceled. This block (Z) can be lifted upon request. If the Company receives calls over its network after the block is lifted on day 120, these calls will be assessed Casual Caller rates, set forth in Section C-1. The company will also cancel Customer’s account following notification of this change from the local telephone company. If for some reason, the Company does not receive a cancellation order from the Customer’s local telephone company and the Customer continues to receive invoices from the Company for optional calling plan monthly fees and/or monthly minimum charge amounts, the Customer should call the Company’s Customer Service to request that the Customer’s account be cancelled.

3.1.2 If, within 90 days of signing up for the Company’s service(s), the Customer is dissatisfied, for any reason, with the long distance service(s) provided by the Company and wishes to cancel such service(s) and return to its prior long distance carrier, the residential Customer may receive a credit equal to any Primary Interexchange Carrier (PIC) change and order processing charges it incurs in returning to its prior carrier, up to $5 per line, maximum of 5 lines, and the commercial Customer may receive a credit equal to any PIC change and order processing charges it incurs in returning to its prior carrier, up to $5 per PIC, up to two (2) PICs per line, maximum of 50 lines. Such credits are limited to one such reimbursement per Customer, for each of up to 50 lines per Customer. In order to obtain such credits, the Customer is required to call the Company’s Customer Service and request a “Satisfaction Guarantee” credit.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: June 26, 2014 Effective: July 1, 2014 Issued by: Vice President, Federal Regulatory (T) 1300 I Street NW (T) Washington, DC 20005 (T) Transmittal# 56

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 28

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

3. Cancellation of Service (Continued)

3.2 By the Company

3.2.1 The Company reserves the right to discontinue furnishing services, cancel the Customer’s account, and/or block the Customer’s access to the Company network, without incurring any liability, immediately and without notice if the Company deems that such action is necessary to prevent or to protect against fraud or to otherwise protect the Company’s personnel, agents, facilities, or services. Without limitation, the Company may take such actions if:

3.2.1.1 The Customer refuses to furnish information or furnishes false information that (i) is essential for billing; or (ii) pertains to the Customer’s credit-worthiness, its status under federal and/or state low income programs, its past or current use of common carrier communications service, or its planned use of such service;

3.2.1.2 The Customer indicates that he or she will not comply with a request for security for the payment for services;

3.2.1.3 The Company has received notice from the Customer’s local telephone company that the local telephone company has cancelled the Customer’s local exchange service;

3.2.1.4 The Customer’s service usage charges exceed established parameters based on the Customer’s history of usage, which may indicate an unlikelihood of payment or possible fraud;

3.2.1.5 The Customer has been given written notice by the Company of any past due amount (which remains unpaid, in whole or in part) for any of the Company’s or an affiliated carrier’s service to which the Customer either subscribes or had subscribed or used;

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 29

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

3. Cancellation of Service (Continued)

3.2 By the Company (Continued)

3.2.1 (Continued)

3.2.1.6 The Customer either refuses to pay when billed for service or indicates to the Company or an entity billing on the Company’s behalf that the Customer does not intend to pay for service used by the Customer;

3.2.1.7 The Customer uses the service to transmit or receive a message, locate a person, or otherwise give or obtain information without payment for the service (i.e., signaling);

3.2.1.8 The Customer uses, or attempts to use, service with the intent to avoid the payment, either in whole or in part, of the charges for the service by (i) using or attempting to use service by rearranging, tampering with, or making connections to service in an unauthorized manner; or (ii) using tricks, schemes, false or invalid numbers, false credit devices, or other fraudulent means or devices;

3.2.1.9 The Customer acts, or fails to act, in a manner that hinders or frustrates any investigation by the Company or others having legal authority to investigate the Customer’s legal obligations;

3.2.1.10 The Customer’s telephone equipment fails to pass back to the Company the appropriate signal to start and stop billing for a call;

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 30

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

3. Cancellation of Service (Continued)

3.2 By the Company (Continued)

3.2.1 (Continued)

3.2.1.11 The Customer was previously provided with notice of breach of contract, took corrective action, but thereafter engages in the same breach activity; or

3.2.1.12 The Company has made available service to the Customer and the Customer has failed to place the available service into actual and substantial use during the 90-day period immediately following its availability, or, if during any service term, the Customer has not actually and substantially used the available service for any consecutive 90-day period. As used in this paragraph, “actual and substantial use” will mean a pattern of use that discloses an intent on the Customer’s part to employ the service to transmit information of the Customer’s choosing.

3.2.2 The Company reserves the right to discontinue furnishing services, cancel the Customer’s account, and/or block the Customer’s access to the Company network, without incurring any liability, immediately upon written notice to the Customer if:

3.2.2.1 Any invoice charges remain outstanding and owed by the Customer after the 21st day from the date of the invoice notifying the Customer of the charges; or

3.2.2.2 The Customer fails to comply with a request by the Company for security for the payment for services.

3.2.3 The discontinuance of service(s) by the Company pursuant to these provisions does not relieve the Customer of any obligation to pay the Company for charges due and owing for service(s) furnished up to the time of discontinuance.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 31

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

4. Liability

4.1 Except for granting credit allowances for interruptions of service as provided for in Section B.2.10 above, the Company will not be liable for: (i) any failure of performance due to causes beyond its control, including, but not limited to, acts of God, fires, floods or other catastrophes; national emergencies, insurrections, riots or wars, terrorist acts, strikes, lockouts, work stoppages or other labor difficulties; preemption of existing services to restore service in compliance with the FCC’s Rules and Regulations; and any law, order, regulation or other action of any governing authority or agency thereof; or (ii) delayed installation of the Company’s facilities or commencement of service.

4.2 With respect to any other factual allegation, legal claim, or dispute by the Customer or by any others, for damages associated with the ordering (including the reservation of any specific number for use with a service), installation (including delays thereof), provision, termination, maintenance, repair, interruption, or restoration of any service or facilities offered by the Company, the Company’s liability, if any, will be limited to credit allowances for interruptions of service as provided for in Section B.2.10 above. In addition to these credit allowances, if any, the Company’s liability is limited as follows:

4.2.1 With respect to the routing of calls by the Company to public safety answering points or municipal emergency service providers, the Company’s liability, if any, will be limited to the lesser of: (a) the actual monetary damages incurred and proved by the Customer as the direct result of the Company’s action, or failure to act, in routing the call, or (b) the sum of $1,000.

4.2.2 With respect to the Company’s offering of Telecommunications Relay Service (TRS), any service provided by the Company that involves receiving, translating, transmitting, or delivering messages by telephone, text telephone, a Telecommunications Device for the Deaf, or any other instrument over the facilities of the Company or any connecting carriers or through any TRS centers operated by the Company or its agents, the Company’s liability will not exceed an amount equal to the Company’s charge for a one minute call to the called station at the time the affected call was made.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 32

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

4. Liability (Continued)

4.2 (Continued)

4.2.3 With respect to the provisioning of, or any error or omission in, data, information, or content furnished in connection with any service provided by the Company, for example, Directory Assistance, the Company’s liability will be limited to the lesser of: (a) the amount of actual money damages proven by the Customer to have been incurred as the proximate result of its reliance on such data, information, or content; or (b) $100.

4.3 The Company’s liability for willful misconduct, if established as a result of judicial or administrative proceedings, is not limited by this tariff.

4.4 IN NO EVENT WILL THE COMPANY BE LIABLE TO THE CUSTOMER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE LOSS OR DAMAGE OF ANY KIND, INCLUDING LOST PROFITS (WHETHER OR NOT THE COMPANY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSS OR DAMAGES) BY REASON OF ANY ACT OR OMISSION IN ITS PERFORMANCE UNDER THIS AGREEMENT.

4.5 The Company will be indemnified, defended, and held harmless by the Customer and/or by others authorized by the Customer to use the service against all claims of loss or damage arising from the use of service furnished by the Company, including:

4.5.1 Allegations or claims for libel, slander, invasion of privacy, or infringement of copyright arising out of the material, data, information, or other content transmitted via the Company service; and

4.5.2 All other allegations and claims arising out of any act or omission by the Customer or others using the service, in connection with any service provided by the Company.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 33

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

4. Liability (Continued)

4.6 THE COMPANY MAKES NO EXPRESS OR IMPLIED REPRESENTATIONS OR WARRANTIES ABOUT ITS SERVICES AND DISCLAIMS ANY IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF TITLE OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE OR NON- INFRINGEMENT. THE COMPANY DOES NOT AUTHORIZE ANYONE TO MAKE A WARRANTY ON THE COMPANY’S BEHALF AND THE CUSTOMER MAY NOT RELY ON ANY STATEMENT OF WARRANTY AS A WARRANTY BY THE COMPANY.

4.7 The Company will not be liable for any act or omission of any other company or companies furnishing a portion of the service, or from any act or omission of a third party, including those vendors participating in the Company offerings made to the Customer, or for damages associated with service, channels, or equipment that it does not furnish, or for damages that result from the operation of Customer provided systems, equipment, facilities or services that are interconnected with the Company services.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 34 CANCELS ORIGINAL PAGE NO. 34

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION B: RULES AND REGULATIONS (Continued)

5. Miscellaneous Provisions

5.1 If the Customer either voluntarily cancels the Customer’s Company account or if the Company cancels the Customer’s service for any reason set forth above, the Company will have no obligation whatsoever to assist the Customer in any respect in switching from the Company to another carrier.

5.2 Any liability or obligation of a party to the other party under the provisions of Section B of this tariff will, in each case, survive cancellation or termination of this tariff.

5.3 Privacy:

5.3.1 Privacy Policy: It is the Company policy not to sell or rent its personally-identifiable Customer information to unaffiliated companies or organizations. In the future, should T the Company decide to sell or rent such information to those entities, it will provide notification and the opportunity for its Customers to indicate that they would prefer the Company not sell or rent such information about them to such third parties. Such notice may be provided by amending the Customer’s Agreement with Company or any other comparably-effective means. The Company reserves the right to contact its Customers regarding the Company’s products and services.

5.3.2 Caller ID: Due to federal rules, Customer’s telephone number (i.e., CPN) may be identified to a called party if that party has Caller ID capability. Customer can prevent this T from occurring on an interstate call by dialing *67 (or 1167 on rotary or pulse-dialing ) prior to placing the interstate call. If Customer has per-line blocking, Customer must dial *82 (or 1182 for rotary or pulse-dialing telephones) prior to placing an interstate call to allow a called party to identify its CPN. Because these Caller ID-related services are provided by the local telephone company, Customer should contact its local telephone company for rate information for such services.

Issued: June 30, 2006 Effective: July 1, 2006 Issued by: Tariff Administrator 201 Spear St., 9th Flr. San Francisco, CA 94105

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 35

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES

1. Dial-around Service (Casual Caller Service)

Dial-around Service (Casual Caller Service) is an outbound long distance service that is accessed and used to complete calls when the caller does not have an active account with the Company, either because (i) an account has not been established and the Casual Caller uses 1010222, 1010555 or any other Company Carrier Identification Code (CIC); (ii) a former Interim Dial 1 Service Customer whose account has been cancelled according with the terms and conditions set forth in Sections B-3.1 or B-3.2 uses 1+ the area code, and a seven digit direct dial number, or, (iii) a new Interim Dial 1 Service Customer whose account has not yet been established in the Company’s billing system uses 1+ the area code, and a seven digit direct dial number.

Calls are rounded to the next higher full minute. If the computed charge for any call includes a fraction of a cent, the fraction is rounded down to the next whole cent. Calls are subject to per-minute usage charges, a per-call surcharge, and other charges imposed by the tariff, including those set forth in Section C-6.

If, after accessing the Company’s network via Casual Caller Service, the Customer places a call using the Company’s Operator Assistance, the Casual Caller Service per-minute rate and per-call surcharge will not apply, but the per-minute rate and the applicable surcharge(s) as set forth in Section 2.3 will apply.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 3RD REVISED PAGE NO. 36 CANCELS 2ND REVISED PAGE NO. 36

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges

1.1.1 Domestic: The following per-minute usage rates apply to Casual Caller Service calls that (T) terminate within Domestic Points at all times of day:

Per-Minute Rates (T) 1st Minute Each Additional Minute (C)

$3.93 (I) $2.13 (N)

1.1.2 International: The following per-minute usage rates apply to Casual Caller Service calls that terminate at international locations at all times of day. A per-call surcharge applies as set forth in Section C.1.2. Service to some locations may only be available with the assistance of an operator.

Country Per-Minute Rate

Afghanistan $ 8.51 Albania 8.14 Algeria 5.61 Andorra 3.70 Angola 10.64 Anguilla 4.03 Antarctica (Casey, Davis, Mawson, and Macquarie Island) 10.73 Antarctica (Scott Base) 4.66 Antigua (Barbuda) 4.03 Argentina 4.66 Armenia 6.42 Aruba 4.03 Ascension Island 5.94 Australia (including Tasmania) 4.35 Austria 3.53 Azerbaijan 6.42 Bahamas 3.70 Bahrain 5.64 Bangladesh 8.17 Barbados 4.03 Belarus 6.42 Belgium 3.53 Belize 4.66

Issued: July 25, 2013 Effective: August 1, 2013 Issued by: Vice President, Federal Regulatory 1300 I Street NW Washington, DC 20005 Transmittal #52

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 37

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Country Per-Minute Rate

Benin $ 5.64 Bermuda 4.03 Bhutan 12.30 Bolivia 4.66 Bosnia-Herzegovina 4.18 Botswana 4.36 Brazil 4.66 British Virgin Islands 4.03 Brunei 4.62 Bulgaria 5.31 Burkina Faso 7.88 Burundi 10.63 Cambodia 9.70 Cameroon 5.18 Canada 1.44 Cape Verde Islands 6.34 Cayman Islands 4.03 Central African Republic 10.21 Chad 11.88 Chile 4.66 China 6.14 Christmas Island 4.35 Cocos Islands 4.35 Colombia 4.66 Comoros 9.96 Congo 8.67 Cook Islands 10.92 Costa Rica 4.66 Croatia 5.31 Cuba 4.66 Cyprus 4.82 Czech Republic 5.31

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 38 CANCELS ORIGINAL PAGE NO. 38

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Country Per-Minute Rate

Denmark $ 3.53 Diego Garcia 8.22 Djibouti 7.45 Dominica 4.03 Dominican Republic 4.03 East Timor 10.64 I Easter Island 4.66 R Ecuador 4.66 Egypt 5.64 El Salvador 4.66 Equatorial Guinea 10.05 Eritrea 6.20 Estonia 6.69 Ethiopia 6.13 Faeroe Islands 3.53 Falkland Islands 8.92 Fiji Islands 6.29 Finland 3.53 France 3.53 French Antilles (including Martinique, St. Barthelemy and St. Martin) 3.70 French Guiana 4.66 French Polynesia 5.46 Gabon 5.15 Gambia 4.83 Georgia 6.42 Germany 3.53 Ghana 5.13 Gibraltar 4.00 Greece 4.82 Greenland 4.35 Grenada (including Carriacou) 4.03 Guadeloupe 4.66 Guantanamo Bay 4.66 Guatemala 4.66

Issued: November 30, 2006 Effective: December 1, 2006 Issued by: Tariff Administrator 201 Spear St., 9th Flr. San Francisco, CA 94105 Transmittal# 11

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 39

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Country Per-Minute Rate

Guinea $ 6.34 Guinea Bissau 10.92 Guyana 5.64 Haiti 4.43 Honduras 4.66 Hong Kong 4.35 Hungary 3.98 Iceland 3.83 India 6.42 Indonesia 5.13 Iran 6.02 Iraq 7.34 Ireland 3.53 Israel 4.82 Italy 3.53 Ivory Coast 6.20 Jamaica 4.03 Japan 4.35 Jordan 4.50 Kazakhstan 6.42 Kenya 5.64 Kiribati 7.99 Korea, Democratic People's Republic of 12.46 Korea, Republic of 4.35 Kuwait 5.64 Kyrgyzstan 5.83 Laos 13.41 Latvia 6.90 Lebanon 7.26 Lesotho 4.82 Liberia 4.82

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 40 CANCELS 1st REVISED PAGE NO. 40

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Country Per-Minute Rate

Libya $ 5.64 Liechtenstein 3.53 Lithuania 6.42 Luxembourg 3.53 Macao 5.97 Macedonia 4.82 Madagascar 11.76 Malawi 4.35 Malaysia 5.15 Maldives 7.87 Mali 7.74 Malta 5.16 Marshall Islands 5.29 Mauritania 7.40 Mauritius 8.06 Mayotte Island 9.96 Mexico 3.21 Micronesia 5.28 Midway1 Moldova 6.73 Monaco 3.53 Mongolia 12.72 Montenegro 5.31 Montserrat 3.75 Morocco 5.95 Mozambique 8.59 Myanmar 14.15 Namibia 4.82 Nauru 8.92 Nepal 7.55 Netherlands 3.53 Netherlands Antilles (Sint Maarten) 4.03 T Netherlands Antilles (Curacao, Sint Eustatius, Saba, and Bonaire) 4.03 C Nevis 4.03

1 The rate in Section 1.1.1 applies.

Issued: September 30, 2011 Effective: October 1, 2011

Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 42

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 41 CANCELS ORIGINAL PAGE NO. 41

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Country Per-Minute Rate

New Caledonia $ 5.08 New Zealand 4.66 Nicaragua 4.66 Niger 6.34 Nigeria 4.82 Niue Island 11.54 Norfolk Island 10.73 Norway 3.53 Oman 4.81 Pakistan 9.46 Palau 8.64 Palestine 4.82 Panama 4.66 Papua New Guinea 5.15 Paraguay 5.15 Peru 4.66 Philippines 5.15 Pitcairn Island 4.66 Poland 4.03 Portugal (including Azores and Madeira Islands) 3.76 Qatar 4.80 Reunion Island 7.95 Romania 5.31 Russia 6.42 Rwanda 8.47 San Marino 4.03 Sao Tome 11.17 Saudi Arabia 5.64 Senegal 6.67 Serbia 5.31 N Seychelles 8.44 Sierra Leone 6.97 Singapore 4.35

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 42

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Country Per-Minute Rate

Slovakia $ 5.31 Slovenia 5.31 Solomon Islands 8.69 Somalia 6.55 South Africa 4.82 Spain (including Balearic Islands, Canary Islands, Cueta and Melilla) 4.03 Sri Lanka 7.87 St. Helena 7.71 St. Kitts 4.03 St. Lucia 4.03 St. Pierre/Miquelon 4.03 St. Vincent/Grenadines 4.03 Sudan 9.43 Suriname 6.57 Swaziland 4.82 Sweden 3.53 Switzerland 3.53 Syria 8.06 Taiwan 4.82 Tajikistan 6.42 Tanzania 5.17 Thailand 4.82 Togo 5.31 Tokelau 10.92 Tonga 7.17 Trinidad/Tobago 4.03 Tunisia 5.15

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 43 CANCELS ORIGINAL PAGE NO. 43

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Country Per-Minute Rate

Turkey $ 4.82 Turkmenistan 6.42 Turks and Caicos Islands 4.03 Tuvalu 13.46 Uganda 5.15 Ukraine 6.42 United Arab Emirates 5.64 2.82 Uruguay 4.66 Uzbekistan 6.42 Vanuatu 10.84 Vatican City 3.53 Venezuela 3.70 Vietnam 6.82 Wake1 Wallis and Futuna Islands 10.64 Western Sahara 5.95 Western Samoa 7.85 Yemen, Republic of 5.64 D Zaire 4.82 Zambia 4.82 Zimbabwe 4.82

1 The rate in Section 1.1.1 applies.

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 44

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.1 Per-Minute Usage Charges (Continued)

1.1.2 International (Continued)

Atlantic, Indian, and Pacific Ocean Inmarsat Locations. (See Appendix C for explanation of types of calls to Inmarsat locations.)

Type of Service/Calls Terminating to: Per Minute Rate.

Aeronautical $7.895 Mini-M 2.500 Standard A/Atlantic, Indian, and Pacific Ocean 8.250 Standard B/Atlantic and Pacific Ocean 4.250 Standard B/Indian Ocean 3.750 Standard M/Atlantic and Pacific Ocean 4.250 Standard M/Indian Ocean 3.750

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 45

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

This page was intentionally left blank.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 46

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

1. Dial-Around Service (Casual Caller Service) (Continued)

1.2 Casual Caller Service Surcharges: A $6.50 per-call surcharge is applicable to international calls which are placed by Casual Callers, excluding the Customers specified in Section C-6.5, who access Company service by direct dial access or by dialing 1010222, 1010555, or any other Company Carrier Identification Code. This charge is in addition to the per-minute usage rates set forth in Section C-1.1.2 for international calls. Customers may be eligible to receive the credit set forth in Section B-2.13.2.

1.3 Operator Assisted Calls: For calls placed with the assistance of an operator, the rates in Sections C-2.1.2 and C-2.2.2, and the surcharges in Section 2.3 apply.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 47

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service

Interim Dial 1 Service is an outbound long distance service for presubscribed Customers who select the Company as their long distance carrier through a Local Exchange Carrier. Customers may receive service pursuant to this tariff for a period of up to 45 days from the date of first service availability. Customers may place calls with the assistance of an operator.

All calls are rounded to the next higher full minute. Except for Commercial Service interstate calls, if the computed charge for a call includes a fraction of a cent, the fraction is rounded down to the nearest whole cent. The computed charge for Commercial Service interstate calls is rounded to the next higher full minute. Calls are subject to per-minute usage charges and other charges imposed by the tariff, including those set forth in Section C-6. Some calls are also subject to a per-call surcharge. If the computed charges for taxes and surcharges includes a fraction of a cent, the fraction is rounded to the nearest whole cent. When a call begins during one time period and ends during another time period, the rate for each time period applies for the portion of the call occurring during that time period.

If Interim Dial 1 Service is canceled by the Customer, its Local Exchange Carrier or the Company, but the Customer nevertheless continues to complete calls over the Company’s network by dialing 1+, including 1010222, 1010555 or any other Company Carrier Identification Code or “CIC”, then for a period not to exceed thirty (30) days from the date of service cancellation, the Customer will pay the Interim Dial 1 Service rates. Thereafter, if the Customer continues to complete calls over the Company’s network by dialing 1+, including 1010222, 1010555 or any other Company CIC, the Customer will pay the Casual Caller Service rates and surcharges set forth in Section C.1 of this Tariff.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 6th REVISED PAGE NO. 48 CANCELS 5th REVISED PAGE NO. 48

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.1 Domestic: The following charges apply to all Interim Dial 1 calls which terminate to Domestic Points:

2.1.1 Without operator assistance: The following charges apply to calls made without operator assistance.

2.1.1.1 Residential Service: The following charges apply to Residential Service calls:

A. Per-Minute Usage Charges: The following per-minute usage charges apply:

Monday – Friday Saturday – Sunday

$0.40 $0.15

The following Time of Day rate periods apply: the Monday - Friday rate period applies from 12:00 a.m. Monday to 11:59 p.m. Friday; the Saturday - Sunday rate period applies from 12:00 a.m. Saturday to 11:59 a.m. Sunday.

For calls made by using Access Code 883, a per-minute charge of $2.64 will apply. Standard tariffed per-call surcharges will apply to these calls. Usage charges for this service will be applied to each minute or fraction thereof of a call.

B. Monthly Recurring Charge: A $8.95 monthly recurring charge applies to I Customers of Interim Dial 1.

C. Additional Line Charge1: For Customers of Interim Dial 1 Service who have more than one line for long distance service, a $2.00 monthly recurring charge applies per line.

D. Monthly Minimum Charge: In any month, the Company will bill the Customer a minimum of $9.99 for the Customer’s total usage charges for Interim Dial-1 service as described in this tariff. If, in any month, the Customer’s total usage charges for Interim Dial-1 service are less than $9.99, the Company will bill the Customer an additional amount for the difference, so that the Customer’s total usage charges for any or all of such Interim Dial-1 services for that month are equal to the above monthly minimum charge.

1 The Additional Line Charge does not apply to Customers of Interim Dial-1 service who also subscribe to local exchange service as set forth in MCImetro Access Transmission Services, LLP, FCC Tariff No. 1.

Issued: April 29, 2011 Effective: May 1, 2011 Issued by: Vice President, Federal Regulatory 1300 I Street NW Washington, DC 20005 Transmittal# 40

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 6th REVISED PAGE NO. 49 CANCELS 5th REVISED PAGE NO. 49

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.1 Domestic (Continued):

2.1.1 Without operator assistance (Continued):

2.1.1.2 Commercial Service: The following charges apply to Commercial Service calls:

A. Per-Minute Usage Charges: The following per-minute usage charges apply:

Peak Off-Peak

0.85 0.64

Peak rates apply from 7:00 a.m. to 6:59 p.m. Monday through Friday. Off-peak rates apply at all other times, except Sunday.

B. Customer Account Minimum Charge: The Customer Account Minimum Charge applies when the Customer's Eligible Usage in a monthly billing period is less than the Customer Account Minimum Charge, which is $25.00 per account. I

The Customer Account Minimum Charge is applied against the Customer's Commercial Service usage in the month in which the Customer Account Minimum Charge is charged.

For purposes of this Section, Eligible Usage is defined as all domestic and international Commercial Service usage and surcharges per Customer account, except charges and surcharges for: non-recurring, monthly recurring, Directory Assistance, and taxes and tax-like charges.

When a Customer's Commercial Service account is installed during a monthly billing cycle and Commercial Service is furnished to that Customer for less than a full monthly billing period, the Customer Account Minimum Charge will be prorated for that Customer in that monthly billing period, based on the number of days in the monthly billing cycle.

Issued: April 29, 2011 Effective: May 1, 2011 Issued by: Vice President, Federal Regulatory 1300 I Street NW Washington, DC 20005 Transmittal # 40

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2ND REVISED PAGE NO. 50 CANCELS 1ST REVISED PAGE NO. 50

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.1 Domestic (Continued):

2.1.2 With operator assistance:

Customer Type All Time Periods

All $1.27 I

For calls made by using Access Code 883, a per-minute charge of $2.64 will apply. Standard tariffed per-call surcharges will apply to these calls. Usage charges for this service will be applied to each minute or fraction thereof of a call.

Issued: March 16, 2012 Effective: March 31, 2012 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 46

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 51 CANCELS ORIGINAL PAGE NO. 51

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International: Rate period definitions are found in Appendix A.

2.2.1 Without Operator Assistance: The following charges apply to international Interim Dial 1 Service calls made without operator assistance.

2.2.1.1 Residential Service: The following charges apply to Residential Service calls:

A. Per-Minute Usage Charges: The following per-minute charges apply to Residential Service calls:

Per-Minute Rates Country 1st Minute Each Additional Minute

Afghanistan $ 9.50 $ 8.51 Albania 9.13 8.14 Algeria 6.60 5.61 D Andorra 4.69 3.70 Angola 11.63 10.64 Anguilla 5.02 4.03 Antarctica (Casey, Davis, Mawson, and Macquarie Island) 11.72 10.73 Antarctica (Scott Base) 5.65 4.66 Antigua (Barbuda) 5.02 4.03 Argentina 5.65 4.66 Armenia 7.41 6.42 Aruba 5.02 4.03 Ascension Island 6.93 5.94 Australia (including Tasmania) 5.34 4.35 Austria 4.52 3.53 Azerbaijan 7.41 6.42 Bahamas 4.69 3.70 Bahrain 6.63 5.64 Bangladesh 9.16 8.17 Barbados 5.02 4.03 Belarus 7.41 6.42 Belgium 4.52 3.53 Belize 5.65 4.66 Benin 6.63 5.64 Bermuda 5.02 4.03 Bhutan 13.29 12.30

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 52

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Bolivia $ 5.65 $ 4.66 Bosnia-Herzegovina 5.17 4.18 Botswana 5.35 4.36 Brazil 5.65 4.66 British Virgin Islands 5.02 4.03 Brunei 5.61 4.62 Bulgaria 6.30 5.31 Burkina Faso 8.87 7.88 Burundi 11.62 10.63 Cambodia 10.69 9.70 Cameroon 6.17 5.18 Canada 2.43 1.44 Cape Verde Islands 7.33 6.34 Cayman Islands 5.02 4.03 Central African Republic 11.20 10.21 Chad 12.87 11.88 Chile 5.65 4.66 China 7.13 6.14 Christmas Island 5.34 4.35 Cocos Islands 5.34 4.35 Colombia 5.65 4.66 Comoros 10.95 9.96 Congo 9.66 8.67 Cook Islands 11.91 10.92 Costa Rica 5.65 4.66 Croatia 6.30 5.31 Cuba 5.65 4.66 Cyprus 5.81 4.82 Czech Republic 6.30 5.31

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 53

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Denmark $ 4.52 $ 3.53 Diego Garcia 9.21 8.22 Djibouti 8.44 7.45 Dominica 5.02 4.03 Dominican Republic 5.02 4.03 East Timor 11.63 10.64 Easter Island1 5.65 4.66 Ecuador 5.65 4.66 Egypt 6.63 5.64 El Salvador 5.65 4.66 Equatorial Guinea 11.04 10.05 Eritrea 7.19 6.20 Estonia 7.68 6.69 Ethiopia 7.12 6.13 Faeroe Islands 4.52 3.53 Falkland Islands 9.91 8.92 Fiji Islands 7.28 6.29 Finland 4.52 3.53 France 4.52 3.53 French Antilles (including Martinique, St. Barthelemy and St. Martin) 4.69 3.70 French Guiana 5.65 4.66 French Polynesia 6.45 5.46 Gabon 6.14 5.15 Gambia 5.82 4.83 Georgia 7.41 6.42

1 Service to this country is available only with the assistance of an operator.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 54

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Germany $ 4.52 $ 3.53 Ghana 6.12 5.13 Gibraltar 4.99 4.00 Greece 5.81 4.82 Greenland 5.34 4.35 Grenada (including Carriacou) 5.02 4.03 Guadeloupe 5.65 4.66 Guantanamo Bay 5.65 4.66 Guatemala 5.65 4.66 Guinea 7.33 6.34 Guinea Bissau 11.91 10.92 Guyana 6.63 5.64 Haiti 5.42 4.43 Honduras 5.65 4.66 Hong Kong 5.34 4.35 Hungary 4.97 3.98 Iceland 4.82 3.83 India 7.41 6.42 Indonesia 6.12 5.13 Iran 7.01 6.02 Iraq 8.33 7.34 Ireland 4.52 3.53 Israel 5.81 4.82 Italy 4.52 3.53 Ivory Coast 7.19 6.20 Jamaica 5.02 4.03 Japan 5.34 4.35 Jordan 5.49 4.50 Kazakhstan 7.41 6.42

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 55

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Kenya $ 6.63 $ 5.64 Kiribati 8.98 7.99 Korea, Democratic People's Republic of 13.45 12.46 Korea, Republic of 5.34 4.35 Kuwait 6.63 5.64 Kyrgyzstan 6.82 5.83 Laos 14.40 13.41 Latvia 7.89 6.90 Lebanon 8.25 7.26 Lesotho 5.81 4.82 Liberia 5.81 4.82 Libya 6.63 5.64 Liechtenstein 4.52 3.53 Lithuania 7.41 6.42 Luxembourg 4.52 3.53 Macao 6.96 5.97 Macedonia 5.81 4.82 Madagascar 12.75 11.76 Malawi 5.34 4.35 Malaysia 6.14 5.15 Maldives 8.86 7.87 Mali 8.73 7.74 Malta 6.15 5.16 Marshall Islands 6.28 5.29 Mauritania 8.39 7.40 Mauritius 9.05 8.06

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 56 CANCELS 1st REVISED PAGE NO. 56

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Mayotte Island $10.95 $ 9.96 Mexico 4.20 3.21 Micronesia 6.27 5.28 Midway1 Moldova 7.72 6.73 Monaco 4.52 3.53 Mongolia 13.71 12.72 Montenegro 6.30 5.31 Montserrat 4.74 3.75 Morocco 6.94 5.95 Mozambique 9.58 8.59 Myanmar 15.14 14.15 Namibia 5.81 4.82 Nauru 9.91 8.92 Nepal 8.54 7.55 Netherlands 4.52 3.53 Netherlands Antilles (Sint Maarten) 5.02 4.03 T Netherlands Antilles (Curacao, Sint Eustatius, Saba, and Bonaire) 5.02 4.03 C Nevis 5.02 4.03 New Caledonia 6.07 5.08 New Zealand 5.65 4.66 Nicaragua 5.65 4.66 Niger 7.33 6.34 Nigeria 5.81 4.82

1 Service to this country or place is available only with the assistance of an operator and the applicable rates are specified in Section C-2.1.2.

Issued: September 30, 2011 Effective: October 1, 2011

Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 42

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 57 CANCELS ORIGINAL PAGE NO. 57

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Norfolk Island $11.72 $10.73 Norway 4.52 3.53 Oman 5.80 4.81 Pakistan 10.45 9.46 Palau 9.63 8.64 Palestine 5.81 4.82 Panama 5.65 4.66 Papua New Guinea 6.14 5.15 Paraguay 6.14 5.15 Peru 5.65 4.66 Philippines 6.14 5.15 Pitcairn Island 5.65 4.66 Poland 5.02 4.03 Portugal (including Azores and Madiera Islands) 4.75 3.76 Qatar 5.79 4.80 Reunion Island 8.94 7.95 Romania 6.30 5.31 Russia 7.41 6.42 Rwanda 9.46 8.47 San Marino 5.02 4.03 Sao Tome 12.16 11.17 Saudi Arabia 6.63 5.64 Senegal 7.66 6.67 Serbia 6.30 5.31 N Seychelles 9.43 8.44 Sierra Leone 7.96 6.97 Singapore 5.34 4.35

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 58

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Slovakia $ 6.30 $ 5.31 Slovenia 6.30 5.31 Solomon Islands 9.68 8.69 Somalia 7.54 6.55 South Africa 5.81 4.82 Spain (including Balearic Islands, Canary Islands, Cueta and Melilla) 5.02 4.03 Sri Lanka 8.86 7.87 St. Helena 8.70 7.71 St. Kitts 5.02 4.03 St. Lucia 5.02 4.03 St. Pierre/Miquelon 5.02 4.03 St. Vincent/Grenadines 5.02 4.03 Sudan 10.42 9.43 Suriname 7.56 6.57 Swaziland 5.81 4.82 Sweden 4.52 3.53 Switzerland 4.52 3.53 Syria 9.05 8.06 Taiwan 5.81 4.82 Tajikistan 7.41 6.42 Tanzania 6.16 5.17 Thailand 5.81 4.82 Togo 6.30 5.31 Tokelau 11.91 10.92 Tonga 8.16 7.17 Trinidad/Tobago 5.02 4.03 Tunisia 6.14 5.15

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 59 CANCELS 1st REVISED PAGE NO. 59

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.1 Residential Service (Continued)

A. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Turkey $ 5.81 $ 4.82 Turkmenistan 7.41 6.42 Turks and Caicos Islands 5.02 4.03 Tuvalu 14.45 13.46 Uganda 6.14 5.15 Ukraine 7.41 6.42 United Arab Emirates 6.63 5.64 United Kingdom 3.81 2.82 Uruguay 5.65 4.66 Uzbekistan 7.41 6.42 Vanuatu 11.83 10.84 Vatican City 4.52 3.53 Venezuela 4.69 3.70 Vietnam 7.81 6.82 Wake1 Wallis and Futuna Islands 11.63 10.64 Western Sahara 6.94 5.95 Western Samoa 8.84 7.85 Yemen, Republic of 6.63 5.64 Zaire 5.81 4.82 Zambia 5.81 4.82 Zimbabwe 5.81 4.82

For calls to Inmarsat locations, the rates in Section C-1.1.2 will apply.

For calls made by using Access Code 883, a per-minute charge of $2.64 will apply. Standard tariffed per-call N surcharges will apply to these calls. Usage charges for this service will be applied to each minute or fraction N thereof of a call.

1 Service to this country or place is available only with the assistance of an operator and the applicable rates are specified in Section C-2.1.2.

Issued: June 25, 2009 Effective: July 1, 2009 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 31

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 60

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

This page was intentionally left blank.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 61 CANCELS 1st REVISED PAGE NO. 61

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service: The following charges apply to Commercial Service calls:

A. Customer Account Minimum Charge: The Customer Account Minimum Charge set forth in Section C-2.1.1.2.B applies

For calls made by using Access Code 883, a per-minute charge of $2.64 will apply. N Standard tariffed per-call surcharges will apply to these calls. Usage charges for this service will be applied to each minute or fraction thereof of a call. N

B. Per-Minute Usage Charges: The following per-minute charges apply to Commercial Service calls:

Per-Minute Rates Country 1st Minute Each Additional Minute

Afghanistan $ 9.62 $ 8.13 Albania 10.06 8.57 Algeria 7.18 5.69 Andorra 5.73 4.24 Angola 12.67 11.18 Anguilla 5.36 3.87 Antarctica (Casey, Davis, Mawson, and Macquarie Island) 17.58 16.09 Antarctica (Scott Base) 8.31 6.82 Antigua (Barbuda) 5.19 3.70 Argentina 6.21 4.72 Armenia 8.16 6.67 Aruba 5.25 3.76 Ascension Island 7.74 6.25 Australia (including Tasmania) 7.17 5.68 Austria 5.76 4.27 Azerbaijan 8.82 7.33 Bahamas 4.42 2.93 Bahrain 7.10 5.61 Bangladesh 10.09 8.60 Barbados 5.46 3.97 Belarus 8.22 6.73 Belgium 5.80 4.31 Belize 6.09 4.60 Benin 6.97 5.48 Bermuda 4.65 3.16

Issued: June 25, 2009 Effective: July 1, 2009 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal# 31

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 62

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Bhutan $14.44 $12.95 Bolivia 6.40 4.91 Bosnia-Herzegovina 6.06 4.57 Botswana 6.77 5.28 Brazil 6.15 4.66 British Virgin Islands 5.19 3.70 Brunei 8.37 6.88 Bulgaria 6.53 5.04 Burkina Faso 10.24 8.75 Burundi 12.66 11.17 Cambodia 11.72 10.23 Cameroon 6.96 5.47 Canada 3.09 1.60 Cape Verde Islands 8.87 7.38 Cayman Islands 5.45 3.96 Central Africa Republic 12.34 10.85 Chad 13.99 12.50 Chile 5.99 4.50 China 9.37 7.88 Christmas Island 7.17 5.68 Cocos Islands 7.17 5.68 Colombia 6.09 4.60 Comoros 12.97 11.48 Congo 10.83 9.34 Cook Islands 13.55 12.06 Costa Rica 5.65 4.16

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 63

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Croatia $ 6.11 $ 4.62 Cuba 7.19 5.70 Cyprus 6.36 4.87 Czech Republic 6.32 4.83 Denmark 5.59 4.10 Diego Garcia 13.32 11.83 Djibouti 10.00 8.51 Dominica 5.49 4.00 Dominican Republic 5.48 3.99 Easter Island1 5.99 4.50 East Timor 16.29 14.80 Ecuador 6.12 4.63 Egypt 6.95 5.46 El Salvador 5.87 4.38 Equatorial Guinea 12.11 10.62 Eritrea 8.72 7.23 Estonia 8.52 7.03 Ethiopia 7.93 6.44 Faeroe Islands 5.59 4.10 Falkland Islands 11.04 9.55 Fiji Islands 8.46 6.97 Finland 6.21 4.72 France 5.52 4.03 French Antilles (including Martinique, St. Barthelemy and St. Martin) 5.34 3.85 French Guiana 6.36 4.87 French Polynesia 14.14 12.65

1 Service to this country is available only with the assistance of an operator.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 64

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Gabon $ 6.90 $ 5.41 Gambia 6.57 5.08 Georgia 8.21 6.72 Germany 5.59 4.10 Ghana 7.33 5.84 Gibraltar 6.53 5.04 Greece 6.21 4.72 Greenland 6.88 5.39 Grenada (including Carriacou) 5.62 4.13 Guadeloupe 5.46 3.97 Guantanamo Bay 7.19 5.70 Guatemala 5.88 4.39 Guinea 8.89 7.40 Guinea Bissau 12.99 11.50 Guyana 7.18 5.69 Haiti 5.93 4.44 Honduras 6.42 4.93 Hong Kong 8.39 6.90 Hungary 6.11 4.62 Iceland 6.22 4.73 India 8.87 7.38 Indonesia 8.46 6.97 Iran 7.83 6.34 Iraq 9.20 7.71 Ireland 5.34 3.85 Israel 6.68 5.19 Italy 7.49 6.00 Ivory Coast 8.02 6.53

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 65

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Jamaica $ 5.48 $ 3.99 Japan 6.89 5.40 Jordan 6.36 4.87 Kazakhstan 8.22 6.73 Kenya 6.96 5.47 Kiribati 9.87 8.38 Korea, Democratic People's Republic of 17.79 16.30 Korea, Republic of 8.50 7.01 Kuwait 6.28 4.79 Kyrgyzstan 9.58 8.09 Laos 15.59 14.10 Latvia 8.74 7.25 Lebanon 9.12 7.63 Lesotho 7.19 5.70 Liberia 6.68 5.19 Libya 8.22 6.73 Liechtenstein 5.77 4.28 Lithuania 8.22 6.73 Luxembourg 6.28 4.79 Macao 8.86 7.37 Macedonia 6.04 4.55 Madagascar 15.98 14.49 Malawi 6.89 5.40 Malaysia 8.35 6.86 Maldives 12.42 10.93

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 66 CANCELS ORIGINAL PAGE NO. 66

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Mali $ 9.64 $ 8.15 Malta 6.91 5.42 Marshall Islands 7.93 6.44 Mauritania 10.17 8.68 Mauritius 10.90 9.41 Mayotte Island 12.97 11.48 Mexico 4.46 2.97 Micronesia 8.06 6.57 Midway1 Moldova 8.55 7.06 Monaco 7.08 5.59 Mongolia 14.84 13.35 Montenegro 6.21 4.72 N Montserrat 5.45 3.96 Morocco 7.75 6.26 Mozambique 10.90 9.41 Myanmar $16.36 $14.87

1 Service to this country or place is available only with the assistance of an operator and the applicable rates are specified in Section C-2.1.2.

Issued: November 30, 2007 Effective: December 1, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal# 20

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 67 CANCELS ORIGINAL PAGE NO. 67

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Namibia $ 6.41 $ 4.92 Nauru 17.21 15.72 Nepal 9.47 7.98 Netherlands 5.48 3.99 Netherlands Antilles (Sint Maarten) 6.43 4.94 T Netherlands Antilles (Curacao, Sint Eustatius, Saba, and Bonaire) 6.43 4.94 C Nevis 6.61 5.12 New Caledonia 9.00 7.51 New Zealand 8.31 6.82 Nicaragua 6.09 4.60 Niger 9.00 7.51 Nigeria 6.36 4.87 Niue Island 13.61 12.12 Norfolk Island 17.58 16.09 Norway 5.46 3.97 Oman 7.73 6.24 Pakistan 11.43 9.94 Palau 10.58 9.09 Palestine 6.68 5.19 Panama 5.85 4.36 Papua New Guinea 8.31 6.82 Paraguay 6.90 5.41 Peru 6.36 4.87 Philippines 7.13 5.64 Pitcairn Island 8.31 6.82 Poland 5.98 4.49 Portugal (including Azores and Madeira Islands) 5.65 4.16 Qatar 7.03 5.54

Issued: September 30, 2011 Effective: October 1, 2011

Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 42

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 68 CANCELS ORIGINAL PAGE NO. 68

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Reunion Island $10.10 $ 8.61 Romania 7.09 5.60 Russia 8.22 6.73 Rwanda 10.75 9.26 San Marino 7.78 6.29 Sao Tome 13.24 11.75 Saudi Arabia 6.88 5.39 Senegal 8.51 7.02 Serbia 6.21 4.72 N Seychelles 12.33 10.84 Sierra Leone 8.84 7.35 Singapore 7.52 6.03 Slovakia 6.12 4.63 Slovenia 6.36 4.87 Solomon Islands 10.64 9.15 Somalia 11.93 10.44 South Africa 6.07 4.58 Spain (including Balearic Islands, Canary Islands, Ceuta and Melilla) 5.77 4.28 Sri Lanka 9.76 8.27 St. Helena 12.75 11.26 St. Kitts 6.61 5.12 St. Lucia 5.46 3.97 St. Pierre/Miquelon 6.29 4.80 St. Vincent/Grenadines 5.57 4.08 Sudan 11.41 9.92 Suriname 8.41 6.92 Swaziland 6.68 5.19 Sweden 5.32 3.83 Switzerland 5.77 4.28 Syria 9.96 8.47

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 69

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Taiwan $ 7.89 $ 6.40 Tajikistan 8.22 6.73 Tanzania 6.95 5.46 Thailand 8.35 6.86 Togo 7.09 5.60 Tokelau 13.55 12.06 Tonga 9.04 7.55 Trinidad/Tobago 5.52 4.03 Tunisia 7.00 5.51 Turkey 6.64 5.15 Turkmenistan 12.70 11.21 Turks & Caicos Islands 5.31 3.82 Tuvalu 15.64 14.15 Uganda 6.97 5.48 Ukraine 8.22 6.73 United Arab Emirates 6.89 5.40 United Kingdom 4.92 3.43 Uruguay 6.17 4.68 Uzbekistan 8.22 6.73 Vanuatu 13.39 11.90

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 70 CANCELS 1st REVISED PAGE NO. 70

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.1 Without Operator Assistance (Continued)

2.2.1.2 Commercial Service (Continued)

B. Per-Minute Usage Charges (Continued)

Per-Minute Rates Country 1st Minute Each Additional Minute

Vatican City 7.49 6.00 Venezuela 5.35 3.86 Vietnam 8.85 7.36 Wake1 Wallis and Futuna 16.29 14.80 Western Sahara 7.75 6.26 Western Samoa 9.75 8.26 Yemen, Republic of 6.44 4.95 Zaire 6.57 5.08 Zambia 6.53 5.04 Zimbabwe 6.84 5.35

For calls to Inmarsat locations, the rates in Section C-1.1.2 will apply.

For calls made by using Access Code 883, a per-minute charge of $2.64 will apply. Standard tariffed per-call N surcharges will apply to these calls. Usage charges for this service will be applied to each minute or fraction thereof of a call. N

1 Service to this country or place is available only with the assistance of an operator and the applicable rates are specified in Section C-2.1.2.

Issued: June 25, 2009 Effective: July 1, 2009 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 31

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 71

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

This page was intentionally left blank.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 72 CANCELS ORIGINAL PAGE NO. 72

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance

2.2.2.1 Payphone/LEC Card: Customers will be charged the following rates for international calls placed with the assistance of an operator and which are either: (1) placed at a payphone; or (2) charged to a LEC calling card. Service to some locations may only be available with the assistance of an operator. Calls will be calculated on a 60-second minimum duration basis, with additional 60-second increments, except for calls placed from payphones to Mexico which will be calculated on a 3-minute minimum duration basis with additional 60-second increments.

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Afghanistan $5.49 $3.53 $5.49 $3.53 $3.63 $2.04 Albania 4.39 3.96 3.82 2.99 3.37 2.74 Algeria 3.69 2.42 2.77 1.83 2.20 1.67 D Andorra 2.03 1.70 1.66 1.18 1.36 1.07 Angola 4.52 4.40 4.12 3.92 3.89 3.56 Anguilla 2.12 1.69 1.50 1.30 1.22 1.22 Antarctica (Casey, Davis Mawson, and Macquarie Island) 6.78 6.17 4.63 4.46 4.27 4.21 Antarctica (Scott Base) 4.39 2.17 3.30 1.41 2.63 1.26 Antigua (Barbuda) 2.15 1.64 1.60 1.24 1.31 1.12 Argentina 3.96 2.17 3.02 1.44 2.46 1.26 Armenia 4.24 3.51 2.66 2.65 2.45 2.40 Aruba 1.92 1.55 1.36 1.18 1.10 1.07 Ascension Island 3.34 2.79 2.50 2.16 2.00 1.97 Australia (including Tasmania) 3.51 1.63 2.83 1.42 1.96 1.31 Austria 2.28 1.61 1.69 1.20 1.45 1.09 Azerbaijan 4.24 3.51 2.66 2.65 2.45 2.40

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 73

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Bahamas $1.43 $1.31 $1.19 $1.16 $1.08 $1.09 Bahrain 4.52 2.18 3.37 1.66 2.71 1.50 Bangladesh 7.05 3.62 4.65 2.52 Barbados 2.16 1.64 1.62 1.24 1.31 1.12 Belarus 4.24 3.51 2.66 2.65 2.45 2.40 Belguim 2.31 1.84 1.73 1.17 1.38 1.05 Belize 3.35 2.05 2.51 1.40 2.00 1.23 Benin 3.08 2.18 2.31 1.66 1.83 1.50 Bermuda 1.58 1.42 1.30 1.31 1.19 1.16 Bhutan 5.30 4.40 4.27 4.17 Bolivia 4.12 2.08 3.09 1.58 2.46 1.44 Bosnia-Herzegovina 2.90 1.91 2.07 1.45 1.66 1.31 Botswana 3.21 2.05 2.42 1.50 1.92 1.40 Brazil 3.12 1.97 2.35 1.75 1.94 1.42 British Virgin Islands 1.92 1.56 1.37 1.19 1.10 1.08 Brunei 4.89 2.12 3.69 1.64 2.93 1.53 Bulgaria 2.77 2.18 2.09 1.64 1.66 1.50 Burkino Faso 3.65 3.61 2.84 2.74 2.27 2.19 Burundi 4.39 4.18 4.00 3.84 3.76 3.30 Cambodia 4.54 4.45 4.10 3.44 3.76 3.32 Cameroon 3.20 2.45 2.41 1.79 1.91 1.67 Canada (See below) Cape Verde Islands 3.50 3.05 2.50 2.23 2.00 1.97 Cayman Islands 1.96 1.66 1.46 1.20 1.18 1.09 Central African Republic 4.27 4.18 3.89 3.73 3.65 3.49

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 74

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Chad $4.91 $4.40 $4.49 $4.40 $4.23 $4.24 Chile 3.26 1.63 2.63 1.20 2.23 1.04 China 7.20 2.52 5.14 2.42 4.41 2.19 Christmas Island 3.51 1.63 2.83 1.42 1.96 1.31 Cocos Island 3.51 1.63 2.83 1.42 1.96 1.31 Colombia 3.46 2.03 2.76 1.82 2.04 1.64 Comorros 4.52 4.40 4.12 3.98 3.89 3.81 Congo 3.82 3.74 3.38 3.01 2.81 2.73 Cook Island 5.53 4.40 4.85 3.99 4.63 3.80 Costa Rica 3.47 1.74 2.75 1.32 2.32 1.19 Croatia 2.90 1.91 2.09 1.45 1.66 1.31 Cuba 1.63 1.64 1.63 1.64 1.63 1.64 Cyprus 2.90 1.94 2.17 1.48 1.72 1.33 Czech Republic 2.77 2.06 1.99 1.56 1.81 1.42 Denmark 2.21 1.68 1.76 1.17 1.45 1.03 Diego Garcia 4.11 3.69 3.11 2.71 Djibouti 3.53 3.40 2.66 2.57 2.11 2.08 Dominica 2.16 1.79 1.54 1.29 1.24 1.18 Dominica Republic 1.90 1.76 1.50 1.49 1.32 1.31 East Timor 5.12 4.99 4.52 3.65 4.14 3.40 Easter Island 3.26 1.63 2.63 1.20 2.23 1.04 Ecuador 3.08 1.97 2.76 1.82 2.23 1.60 Egypt 3.08 2.19 2.66 1.75 2.12 1.59 El Salvador 2.93 1.91 2.35 1.64 1.90 1.42 Equatorial Guinea 4.27 4.18 3.89 3.60 3.65 3.43

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 75

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Eritrea $4.44 $2.77 $3.36 $2.17 $2.65 $1.91 Estonia 4.24 3.51 2.66 2.65 2.45 2.40 Ethiopia 4.48 2.90 3.38 2.08 2.68 1.98 Faeroe Islands 2.11 1.72 1.68 1.09 1.36 1.00 Falkland Islands 3.92 3.74 2.92 2.74 2.35 2.19 Fiji Islands 4.89 2.93 3.69 2.05 2.93 1.92 Finland 2.26 1.74 1.81 1.18 1.47 0.95 France 2.03 1.34 1.66 1.20 1.36 0.98 French Antilles (including Martinique, St. Barthelemy and St. Martin) 1.87 1.62 1.33 1.23 1.08 1.09 French Guiana 3.21 1.86 2.41 1.34 1.93 1.23 French Polynesia 4.80 2.58 3.60 1.94 2.88 1.83 Gabon 3.37 2.40 2.44 1.73 1.94 1.58 Gambia 3.72 2.32 2.66 1.63 2.12 1.52 Georgia 4.24 3.51 2.66 2.65 2.45 2.40 Germany 2.11 1.42 1.68 1.09 1.36 0.92 Ghana 3.85 2.42 2.77 1.86 2.21 1.56 Gibraltar 3.11 1.92 2.23 1.45 1.78 1.31 Greece 3.43 2.27 2.58 1.58 2.06 1.25 Greenland 2.53 2.13 1.89 1.55 1.50 1.41 Grenada (including Carriacou) 2.06 1.80 1.47 1.35 1.18 1.09 Guadeloupe 2.06 1.64 1.47 1.23 1.18 1.11

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 76

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Guantanamo Bay $1.63 $1.64 $1.63 $1.64 $1.63 $1.64 Guatemala 3.08 1.91 2.45 1.64 1.99 1.42 Guinea 3.07 2.88 2.29 2.17 1.82 1.75 Guinea Bissau 4.52 4.40 4.12 4.03 3.89 3.77 Guyana 4.07 2.49 2.91 1.63 2.33 1.48 Haiti 2.27 1.94 1.78 1.47 1.45 1.33 Honduras 3.08 1.97 2.39 1.75 2.04 1.53 Hong Kong 4.10 1.86 3.08 1.31 2.45 1.20 Hungary 2.77 1.83 2.07 1.38 1.66 1.26 Iceland 2.53 1.91 1.89 1.32 1.50 1.20 India 4.84 2.58 3.48 2.10 Indonesia 5.19 2.44 3.89 1.68 3.11 1.46 Iran 4.70 2.63 3.52 1.90 2.83 1.72 Iraq 3.92 3.29 2.92 2.68 2.35 2.19 Ireland 2.03 1.62 1.66 1.07 1.39 0.95 Israel 3.52 1.84 2.92 1.60 2.13 1.49 Italy 2.04 1.68 1.66 1.31 1.37 1.14 Ivory Coast 4.04 2.89 2.90 2.15 2.31 1.90 Jamaica 2.34 1.76 1.74 1.33 1.40 1.19 Japan 3.46 1.95 2.89 1.26 2.45 1.14 Jordan 4.48 2.03 3.36 1.53 2.69 1.40 Kazakhstan 4.24 3.51 2.66 2.65 2.45 2.40 Kenya 3.55 2.36 2.66 1.84 2.12 1.62 Kiribati 4.89 3.69 3.69 2.66 2.93 2.42 Korea, Democratic People's Republic of 6.58 5.11 5.81 5.06 5.46 4.68

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 77

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Korea, Republic of $2.73 $2.21 $2.04 $1.40 $1.94 $1.27 Kuwait 4.35 1.98 3.25 1.26 2.60 1.07 Kyrgyzstan 4.24 3.51 2.66 2.65 2.45 2.40 Laos 6.26 6.24 5.62 4.39 5.19 4.20 Latvia 4.24 3.51 2.66 2.65 2.45 2.40 Lebanon 5.08 3.62 4.19 2.99 3.74 2.68 Lesotho 3.20 2.03 2.41 1.59 1.91 1.49 Liberia 3.37 2.06 2.44 1.56 1.93 1.42 Libya 3.52 2.26 2.65 1.70 2.12 1.54 Liechtenstein 1.99 1.68 1.50 1.09 1.18 0.98 Lithuania 4.24 3.51 2.66 2.65 2.45 2.40 Luxembourg 2.47 1.69 1.83 1.10 1.54 0.93 Macao 5.42 2.70 3.89 2.04 3.11 1.85 Macedonia 3.04 1.96 2.17 1.47 1.72 1.34 Madagascar 4.91 4.40 4.49 4.28 4.23 3.91 Malawi 3.37 1.97 2.53 1.49 2.01 1.35 Malaysia 4.94 2.35 3.72 1.58 2.95 1.24 Maldives 5.09 3.62 4.07 2.80 3.30 2.61 Mali Republic 3.11 3.08 2.60 2.52 2.26 2.19 Malta 3.04 2.52 2.17 1.82 1.72 1.66 Marshall Islands 4.48 2.58 3.37 1.81 2.69 1.69 Mauritania 3.94 3.48 3.72 2.52 3.37 2.28 Mauritius 3.92 3.74 2.92 2.70 2.35 2.19 Mayotte Island 4.52 4.40 4.12 3.98 3.89 3.81 Mexico (See below) Micronesia 4.48 2.44 3.37 1.89 2.69 1.76 Midway1 Moldova 4.24 3.51 2.66 2.65 2.45 2.40

1 The rate in Section 2.1.2 applies.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 78 CANCELS 1st REVISED PAGE NO. 78

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Monaco $2.03 $1.34 $1.66 $1.20 $1.36 $0.98 Mongolia 5.71 4.40 5.09 4.54 4.70 4.13 Montenegro 2.90 2.05 2.07 1.55 1.66 1.41 Montserrat 2.06 1.73 1.47 1.31 1.18 1.19 Morocco 4.04 2.68 2.92 1.91 2.32 1.76 Mozambique 3.92 3.84 3.27 3.03 2.92 2.73 Myanmar 6.89 6.70 6.17 5.19 5.70 4.84 Namibia 2.62 2.21 1.97 1.62 1.57 1.51 Nauru 4.35 4.05 3.59 3.07 3.15 2.79 Nepal 5.04 3.27 3.32 2.23 Netherlands 1.83 1.20 1.46 0.98 1.24 0.76 Netherlands Antilles 1.84 1.68 1.37 1.16 1.10 1.06 (Sint Maarten) T Netherlands Antilles 1.84 1.68 1.37 1.16 1.10 1.06 C (Curacao, Sint Eustatius, C Saba, and Bonaire) C Nevis 2.16 1.71 1.62 1.29 1.31 1.17 New Caledonia 4.89 2.38 3.69 1.79 2.93 1.67 New Zealand 4.39 2.17 3.30 1.41 2.63 1.26 Nicaragua 3.89 2.02 3.07 1.52 2.44 1.38 Niger 3.07 2.91 2.29 2.21 1.82 1.75 Nigeria 3.30 2.08 2.38 1.58 1.89 1.44 Niue Island 5.62 4.40 4.99 4.21 4.62 3.94 Norfolk Island 6.78 6.17 4.63 4.46 4.27 4.21 Norway 2.00 1.54 1.60 1.07 1.31 0.95 Oman 4.70 2.23 3.52 1.67 2.83 1.51 Pakistan 6.10 3.92 4.03 2.27 Palau 3.92 3.84 3.59 3.11 3.27 2.91 Panama 2.91 1.82 2.33 1.38 1.90 1.25 Papua New Guinea 4.39 2.40 3.30 1.69 2.63 1.58 Paraguay 3.89 2.42 2.79 1.74 2.24 1.59 Peru 3.08 2.10 2.87 1.53 2.35 1.38

Issued: September 30, 2011 Effective: October 1, 2011

Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 42

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 79 CANCELS ORIGINAL PAGE NO. 79

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Philippines $4.24 $2.35 $3.59 $1.55 $3.00 $1.35 Pitcairn Island 4.39 2.17 3.30 1.41 2.63 1.26 Poland 3.21 1.76 2.31 1.30 2.10 1.18 Portugal (including Azores and Madeira Islands) 2.91 1.93 1.91 1.34 1.50 1.13 Qatar 4.70 2.26 3.52 1.58 2.83 1.48 Reunion Island 3.53 3.30 2.66 2.52 2.11 2.08 Romania 3.49 2.42 2.48 1.83 1.99 1.67 Russia 4.24 3.51 2.66 2.65 2.45 2.40 Rwanda 3.92 3.84 2.92 2.91 2.35 2.30 San Marino 2.04 1.68 1.66 1.31 1.37 1.14 Sao Tome 4.27 4.18 3.89 3.84 3.65 3.62 Saudi Arabia 4.11 2.10 3.43 1.86 2.76 1.64 Senegal 4.47 2.70 3.37 2.12 2.68 1.85 Serbia 2.90 2.05 2.07 1.55 1.66 1.41 N Seychelles 5.54 4.02 4.57 2.95 3.65 2.74 Sierra Leone 3.53 3.17 2.92 2.40 2.32 2.18 Singapore 4.14 1.81 3.31 1.37 2.69 1.08 Slovakia 2.77 2.06 1.99 1.56 1.81 1.42 Slovenia 2.90 1.97 2.07 1.52 1.66 1.35 Solomon Islands 4.52 3.97 4.40 2.90 4.05 2.71 Somalia 5.41 3.60 4.82 3.22 4.47 2.99 South Africa 2.77 1.79 2.10 1.38 1.66 1.22 Spain (including Balearic Islands, Canary Islands, Ceuta and Melilla) 2.22 1.91 1.90 1.53 1.50 1.31

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 80

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Sri Lanka $5.29 $3.40 $3.50 $2.32 St. Helena 3.92 3.80 $2.92 $2.82 2.35 2.19 St. Kitts 2.16 1.71 1.62 1.29 1.31 1.17 St. Lucia 2.16 1.71 1.54 1.30 1.24 1.18 St. Pierre/Miquelon 1.67 1.48 1.24 1.14 1.01 1.01 St. Vincent/ Grenadines 2.26 1.80 1.62 1.35 1.31 1.24 Sudan 5.51 3.66 5.21 3.48 4.91 3.29 Suriname 4.24 2.85 3.05 2.15 2.44 1.95 Swaziland 2.92 2.14 2.21 1.54 1.75 1.45 Sweden 2.06 1.51 1.66 1.05 1.33 0.91 Switzerland 1.99 1.68 1.50 1.09 1.18 0.98 Syria 3.86 3.61 3.31 2.93 2.95 2.82 Tadjikistan 4.24 3.51 2.66 2.65 2.45 2.40 Taiwan 4.42 2.15 3.53 1.46 2.94 1.19 Tanzania 3.20 2.36 2.41 1.79 1.91 1.62 Thailand 4.94 2.30 3.72 1.58 2.95 1.24 Togo 3.21 2.47 2.42 1.79 1.92 1.62 Tonga 4.48 3.30 3.37 2.61 2.69 2.47 Trinidad/Tobago 2.49 1.81 1.88 1.39 1.50 1.19 Tunisia 3.53 2.21 2.65 1.66 2.11 1.50 Turkey 3.36 2.14 2.51 1.58 2.00 1.40 Turkmenistan 4.24 3.51 2.66 2.65 2.45 2.40 Turks and Caicos Islands 2.12 1.70 1.50 1.28 1.22 1.20 Tuvalu 5.70 4.97 5.09 4.64 4.70 4.34 Uganda 3.53 2.35 2.55 1.77 2.02 1.61

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 81 CANCELS ORIGINAL PAGE NO. 81

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

STANDARD DISCOUNT ECONOMY Country 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

Ukraine $4.24 $3.51 $2.66 $2.65 $2.45 $2.40 United Arab Emirates 4.59 1.88 3.43 1.42 2.76 1.29 United Kingdom 1.96 1.37 1.58 1.05 1.33 0.87 Uruguay 3.46 2.18 2.57 1.41 2.14 1.26 Uzbekistan 4.24 3.51 2.66 2.65 2.45 2.40 Vanuatu 5.62 5.13 4.99 4.12 4.62 3.84 Vatican City 2.04 1.68 1.66 1.31 1.37 1.14 Venezuela 2.48 1.56 1.97 1.03 1.60 0.93 Vietnam 3.29 2.91 3.07 2.55 2.84 2.21 Wake1 Wallis and Futuna 5.12 4.99 4.52 3.65 4.14 3.40 Western Sahara 2.22 1.91 1.90 1.53 1.50 1.31 Western Samoa 4.48 3.61 3.37 2.70 2.69 2.46 Yemen, Republic of 4.70 2.29 3.52 1.62 2.83 1.51 D Zaire 3.35 2.13 2.51 1.66 2.00 1.54 Zambia 3.72 2.04 2.68 1.46 2.13 1.32 Zimbabwe 3.72 2.06 2.68 1.49 2.13 1.35

1 The rate in Section 2.1.2 applies.

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 82

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

To Canada Business Day Evening Night/Weekend Mileage Band 1st Min Add’l Min 1st Min Add’l Min 1st Min Add’l Min

1 - 18 $0.35 $0.36 $0.31 $0.32 $0.25 $0.26 19 - 80 0.42 0.43 0.33 0.34 0.25 0.26 81 - 140 0.49 0.50 0.37 0.38 0.26 0.27 141 - 220 0.52 0.53 0.39 0.40 0.27 0.28 221 - 345 0.60 0.61 0.44 0.45 0.33 0.34 346 - 630 0.68 0.69 0.50 0.51 0.36 0.37 631 - 1200 0.79 0.80 0.56 0.57 0.39 0.40 1201 - 1610 0.83 0.84 0.60 0.61 0.42 0.43 1611 - 4000 0.88 0.89 0.63 0.64 0.44 0.45 4001 + 0.88 0.89 0.63 0.64 0.44 0.45

From Canada (LEC Card only)

Standard Discount Economy Mileage Band 1st Min Add'l Min 1st Min Add'l Min 1st Min Add'l Min

1 - 18 $0.35 $0.36 $0.31 $0.32 $0.25 $0.26 19 - 80 0.42 0.43 0.33 0.34 0.25 0.26 81 - 140 0.49 0.50 0.37 0.38 0.26 0.27 141 - 220 0.52 0.53 0.39 0.40 0.27 0.28 221 - 345 0.60 0.61 0.44 0.45 0.33 0.34 346 - 630 0.68 0.69 0.50 0.51 0.36 0.37 631 - 1200 0.79 0.80 0.56 0.57 0.39 0.40 1201 - 1610 0.83 0.84 0.60 0.61 0.42 0.43 1611 - 4000 0.88 0.89 0.63 0.64 0.44 0.45 4001 + 0.88 0.89 0.63 0.64 0.44 0.45

The following time of day periods apply for calls from Canada: Business Day: 8 a.m. - 5:59 p.m. Monday - Friday Evening: 6 p.m. - 11:59 p.m. Monday - Friday, 8 a.m. - 11:59 p.m. Saturday-Sunday Night/Weekend: 12:00 a.m. - 7:59 a.m. Monday - Sunday

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 83

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

Mexico: LEC Card Only

U.S. Portion

STANDARD ECONOMY 1st Add'l 1st Add'l Mileage Band Minute Minute Minute Minute

1 - 10 $0.24 $0.15 $0.16 $0.12 11 - 22 0.27 0.19 0.19 0.14 23 - 55 0.43 0.23 0.27 0.16 56 - 124 0.49 0.26 0.34 0.19 125 - 292 0.64 0.30 0.43 0.22 293 - 430 0.71 0.36 0.47 0.24 431 - 925 0.75 0.40 0.49 0.26 926 - 3000 0.80 0.43 0.52 0.29

Mexico Portion (See Appendix B for Rate Step definitions.)

STANDARD ECONOMY Rate Step 1st Min Add'l Min 1st Min Add'l Min

1 $0.16 $0.16 $0.10 $0.10 2 0.21 0.21 0.14 0.14 3 0.38 0.38 0.25 0.25 4 0.45 0.45 0.30 0.30 5 0.64 0.64 0.42 0.42 6 0.83 0.83 0.55 0.55 7 1.11 1.11 0.75 0.75 8 1.18 1.18 0.80 0.80

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 84 CANCELS ORIGINAL PAGE NO. 84

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.2 With Operator Assistance (Continued)

2.2.2.1 Payphone/LEC Card (Continued)

Mexico: Payphones Only

US PORTION MEXICO PORTION All Rate Periods All Rate Periods

Mileage First Add'l First Add'l Band 3 Min. 1 Min. Step 3 Min. 1 Min.

1 - 10 $1.03 $0.12 1 $0.84 $0.28 11 - 22 1.40 0.15 2 1.11 0.37 23 - 55 1.80 0.19 3 2.01 0.67 56 - 124 2.17 0.22 4 2.37 0.79 125 - 292 2.38 0.25 5 3.36 1.12 293 - 430 2.59 0.29 6 4.35 1.45 431 - 925 2.68 0.32 7 5.82 1.94 926 - 3000 2.79 0.35 8 6.21 2.07

Atlantic, Indian, and Pacific Ocean Inmarsat Locations. (See Appendix C for explanation of types of calls to Inmarsat locations.)

For calls made by using Access Code 883, a per-minute charge of $2.64 will apply. Standard tariffed per- N call surcharges will apply to these calls. Usage charges for this service will be applied to each minute or fraction thereof of a call. N

Type of Service/Calls Terminating to: 1st Min. Add'l Min.

Aeronautical $7.895 $7.895 Mini-M 2.500 2.500 Standard A/Atlantic, Indian, and Pacific Ocean 8.250 8.250 Standard B/Atlantic and Pacific Ocean 4.250 4.250 Standard B/Indian Ocean 3.750 3.750 Standard M/Atlantic and Pacific Ocean 4.250 4.250 Standard M/Indian Ocean 3.750 3.750

2.2.2.2 All Other Operator Assisted Calls: For all other operator assisted calls, the rates in Section 1.1.2 apply.

Issued: June 25, 2009 Effective: July 1, 2009 Issued by: Tariff Administrator 201 Spear St., 9th Flr. San Francisco, CA 94080 Transmittal# 31

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 3rd REVISED PAGE NO. 85 CANCELS 2nd REVISED PAGE NO. 85

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.3 International Mobile Termination Usage Charge: The following per-minute usage charges will apply, in addition to all other applicable usage charges and surcharges, to usage which terminates via Commercial Mobile Radio Service in the following locations:

Location Per-Minute Charge

Albania $0.07 Algeria 0.04 Andorra 0.19 Angola 0.06 Anguilla 0.10 Antarctica (Scott Base) 0.24 Argentina 0.18 Armenia 0.13 Aruba 0.10 Australia (including Tasmania) 0.16 Austria 0.16 Azerbaijan 0.04 Bahrain 0.02 Bangladesh 0.01 Barbados 0.07 Belarus 0.01 Belgium 0.23 Belize 0.09 Bhutan 0.04 Bolivia 0.04 Bosnia-Herzegovina 0.11 Botswana 0.11 Brazil 0.15 Bruenei 0.03 Bulgaria 0.19 Burkina Faso 0.01

Issued: September 30, 2006 Effective: October 1, 2006 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 3rd REVISED PAGE NO. 86 CANCELS 2nd REVISED PAGE NO. 86

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.3 International Mobile Termination Usage Charge (Continued)

Location Per-Minute Charge

Cameroon $0.02 I Cape Verde Islands 0.05 I Cayman Islands 0.09 Chile 0.16 Christmas Island 0.16 Cocos Island 0.16 Colombia 0.05 Comoros 0.06 I Croatia 0.15 Cyprus 0.02 I Czech Republic 0.14 Denmark 0.16 Djibouti 0.03 N Dominica 0.10 Dominican Republic 0.07 Easter Island 0.16 Ecuador 0.08 Estonia 0.23 Ethiopia 0.02 Faeroe Islands 0.08 Finland 0.11 R France 0.14 R French Antilles (including Martinique, St. Barthelemy and St. Martin) 0.32 French Guiana 0.35 I D Gambia 0.04 Georgia 0.10 Germany 0.18

Issued: September 30, 2006 Effective: October 1, 2006 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 3rd REVISED PAGE NO. 87 CANCELS 2nd REVISED PAGE NO. 87

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.3 International Mobile Termination Usage Charge (Continued)

Location Per-Minute Charge

Ghana $0.06 Gibraltar 0.21 Greece 0.15 Greenland 0.08 I Grenada (including Carriacou) 0.08 Guadeloupe 0.26 Guatemala 0.01 N D Haiti 0.07 I Hungary 0.16 R Iceland 0.16 Indonesia 0.07 Iran 0.04 N Iraq 0.09 Ireland 0.15 Israel 0.07 Italy 0.21 Ivory Coast 0.03 R Jamaica 0.12 Japan 0.11 R Jordan 0.04 Kazakhstan 0.08 R Kenya 0.13 Korea, Republic of 0.03 D Latvia 0.17 I Lebanon 0.09 Lesotho 0.01 D Liechtenstein 0.42 Lithuania 0.10 I Luxembourg 0.19

Issued: September 30, 2006 Effective: October 1, 2006 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 6th REVISED PAGE NO. 88 CANCELS 5th REVISED PAGE NO. 88

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.3 International Mobile Termination Usage Charge (Continued)

Location Per-Minute Charge

Macedonia $0.16 Madagascar 0.02 Malawi 0.01 Malaysia 0.03 Mali 0.10 Malta 0.19 Mayotte Island 0.06 Mexico 0.16 Moldova 0.09 Monaco 0.24 Montenegro 0.13 Montserrat 0.01 Morocco 0.08 Namibia 0.10 Nepal 0.01 Netherlands 0.24 Netherlands Antilles (Sint Maarten) 0.01 T Netherlands Antilles (Curacao, Sint Eustatius, Saba, and Bonaire) 0.01 C Nevis 0.10 New Zealand 0.24 Nicaragua 0.07 Nigeria 0.11 Norway 0.14 Panama 0.07 Paraguay 0.05 Peru 0.25 Philippines 0.02 Pitcairn Island 0.24 Poland 0.14 Portugal (including Azores and Madeira Islands) 0.18 Qatar 0.11 Reunion Islands 0.19 Romania 0.14

Issued: September 30, 2011 Effective: October 1, 2011

Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 42

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 4th REVISED PAGE NO. 89 CANCELS 3rd REVISED PAGE NO. 89

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.3 International Mobile Termination Usage Charge (Continued)

Location Per-Minute Charge

Russia $0.02 Rwanda 0.01 Saudi Arabia 0.09 Senegal 0.07 Serbia 0.13 N Sierra Leone 0.08 Slovakia 0.11 Slovenia 0.21 South Africa 0.11 Spain (including Balearic Islands, Canary Islands, Ceuta, and Melilla) 0.19 Sri Lanka 0.04 St. Kitts 0.10 St. Lucia 0.08 St. Pierre/Miquelon 0.05 St. Vincent/Grenadines 0.07 Sudan 0.01 Swaziland 0.07 Sweden 0.16 Switzerland 0.23 Syria 0.03 Taiwan 0.06 Tajikistan 0.08 Tanzania 0.05 Thailand 0.01 Togo 0.04 Trinidad/Tobago 0.05 Tunisia 0.07 Turkey 0.11 Turkmenistan 0.01 Turks/Caicos Island 0.07 Ukraine 0.03 United Kingdom 0.15 Uruguay 0.14

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 4th REVISED PAGE NO. 90 CANCELS 3rd REVISED PAGE NO. 90

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.2 International (Continued)

2.2.3 International Mobile Termination Usage Charge (Continued)

Location Per-Minute Charge

Vatican City $0.21 Venezuela 0.15 Western Sahara 0.08 Western Samoa 0.13 Yemen, Republic of 0.01 D Zambia 0.10 Zimbabwe 0.14

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 91

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

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ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 92

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.3 Operator Services Per-Call Surcharges: The following per-call surcharges are applicable to Interim Dial 1 Service calls completed with the assistance of an operator. These surcharges are in addition to the applicable per-minute usage rates. Notes to this table are found at the end of the table.

Call Type Domestic International

Operator Station1 $6.50 $6.50 To Canada N/A 4.25 To Mexico N/A 2.75 Operator Station Collect2, (Standard Inbound Collect and Third Party Billed) 6.50 9.99 From Canada N/A 5.24 From Mexico N/A 7.99 Person-to-Person1 12.50 8.50 To Canada N/A 6.00 To Mexico N/A 4.75 Person-to-Person Collect2, (Standard Inbound Collect and Third Party Billed) 12.50 9.99 From Canada N/A 7.49 From Mexico N/A 7.99

1 An additional surcharge of $3.50 applies for calls that are either: (a) made from private residential or business phones by Casual Callers, which calls are completed with the assistance of an operator and billed to a LEC card, regardless of the phone from which the call is placed; or (b) made from private residential or business phones, which calls are completed with the assistance of an operator and made under either of the following two circumstances of Casual Caller Service: (1) If the Customer’s local telephone company notifies the Company that the Customer has requested cancellation of the Customer’s Company service or if the Customer has otherwise provided assurances to the Company that the Customer has switched carriers, then the Company will cancel the Customer’s service account. If, however, after cancellation resulting from the Customer or the Customer’s local telephone company providing assurances to the Company that the Customer has switched carriers, the Customer’s telephone line actually remains designated to the Company at the local telephone company’s switch, then, beginning 30 days after cancellation, the Customer will be charged Casual Caller Service rates for calls placed on the Company’s service network; (2) If the Company cancels the Customer’s account and blocks the Customer’s line from placing calls on the Company’s service network for a reason described in B-5 herein and the Customer has not changed carriers within 120 days of the line being blocked, the Company may lift such block and allow the Customer access to the Company’s service network. In this situation, the Customer will be charged Casual rates for calls placed on the Company’s service network.

2 Charges for collect calls will not be accepted if the called party to whom the charges are to be shifted is at a payphone or institutional phone.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 93 CANCELS ORIGINAL PAGE NO. 93

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.3 Operator Services Per-Call Surcharges (Continued)

Call Type Domestic International

Third Party Billed-Private Phone only1, (International calls can only be billed to domestic third party numbers) $6.50 $8.002 To Canada N/A 3.25 To Mexico N/A 3.25 Local Exchange Carrier Card/Commercial Credit Card 1, 4 6.50 5.50 N To Canada/Mexico N/A 3.00 Operator Dialed 1.553 2.153 Coin-Sent-Paid Operator 1.95 N/A

1 An additional surcharge of $3.50 applies for calls that are either: (a) made from private residential or business phones by Casual Callers, which calls are completed with the assistance of an operator and billed to a LEC card, regardless of the phone from which the call is placed; or (b) made from private residential or business phones, which calls are completed with the assistance of an operator and made under either of the following two circumstances of Casual Caller:Service (1) If the Customer’s local telephone company notifies the Company that the Customer has requested cancellation of the Customer’s Company service or if the Customer has otherwise provided assurances to the Company that the Customer has switched carriers, then the Company will cancel the Customer’s service account. If, however, after cancellation resulting from the Customer or the Customer’s local telephone company providing assurances to the Company that the Customer has switched carriers, the Customer’s telephone line actually remains designated to the Company at the local telephone company’s switch, then, beginning 30 days after cancellation, the Customer will be charged Casual Caller Service rates for calls placed on the Company’s service network; (2) If the Company cancels the Customer’s account and blocks the Customer’s line from placing calls on the Company’s service network for a reason described in B-5 herein and the Customer has not changed carriers within 120 days of the line being blocked, the Company may lift such block and allow the Customer access to the Company’s service network. In this situation, the Customer will be charged Casual rates for calls placed on the Company’s service network.

2 Inbound calling is not available from all countries.

3 This surcharge does not apply to operator dialed calls, using a LEC calling card, placed Station-to-Station or Person-to-Person.

4 Effective November 1, 2011, for operator assisted calls made via an automated or live operator, payment by N commercial credit card to the automated or live operator will no longer be available. N

Issued: October 31, 2011 Effective: November 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal No. 43

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 94 CANCELS ORIGINAL PAGE NO. 94

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.4 Personal 800:

2.4.1 Personal 800 Plan R: Personal 800 Plan R provides a telephone number at which calls may be received from any location within the U.S. Mainland, Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam, CNMI and Canada. The Company will T provide to the Customer an 800 telephone number, a 4-digit Security Code, and, upon request, a 6-digit Rerouting Code which will allow the Customer to use the "Follow-Me" Routing feature.

A Personal 800 Plan R Customer shares access to an 800 number with other Customers and acquires service based on a 4-digit Security Code assigned to the Customer. Thus, a Customer may not retain the 800 number or any right therein when his or her service is discontinued. There is a limit of ten Personal 800 Plan R numbers per Customer telephone number.

Customers who presubscribe to Interim Dial 1 Service will be automatically subscribed to Personal 800 Plan R.

When a Personal 800 Plan R is established in one time-of-day rate application period and ends in another, the rate in effect in the rate period in which the call begins applies to entire call.

2.4.1.1 Follow-Me Routing: This feature allows a Personal 800 Plan R Customer to change the telephone number to which calls to his or her Personal 800 Plan R number will be terminated. To make a Follow-Me change, a Customer may use his or her Personal 800 Plan R number and the 6-digit Rerouting Code. There is no limit on the number of changes a Customer may make. The Customer may request change in termination to any telephone available in the U.S. Mainland, Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam, T CNMI, Canada and to international locations as specified in Appendix A.

2.4.1.2 Personal 800 Plan R is available to Customers enrolled of Interim Dial 1 Service. The applicable rates specified in Section C-2.4.1.3 will apply.

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 95 CANCELS ORIGINAL PAGE NO. 95

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.4 Personal 800 (Continued)

2.4.1 Personal 800 Plan R (Continued)

2.4.1.3 Personal 800 Plan R Per-Minute Usage Charges:

A. From the U.S. Mainland, Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and CNMI to the U.S. Mainland, T Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, T Guam and CNMI:

Rate

$0.45

B. From the U.S. Mainland, Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and CNMI to Canada; from Canada to T the U.S. Mainland, Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and CNMI; and, from the U.S. Mainland, T Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, T Guam and CNMI to international locations:

Per-Minute Usage Rates Applicable Usage Rates To/From Canada To International Locations

$0.45 See Section C-2.2.1.1

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 96

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.4 Personal 800 (Continued)

2.4.2 MCI Private 800: MCI Private 800 provides a number to receive calls from any point within the continental U.S., Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, Canada and Mexico. The Customer may have multiple MCI Private 800 numbers per account. For each MCI Private 800 number, the Company will provide to the Customer an 800 number, a 4-digit security code, and a 6-digit Rerouting Code which allows the subscriber to use the MCI Forward 800 feature, with which the Customer can receive incoming domestic calls for which the Customer will be charged $.45 per minute. Except for calls from Mexico, all MCI Private 800 calls are subject to a 30 second minimum initial period with 6 second additional increments. There is a non-recurring $10 installation fee for this feature. The Company has the exclusive right to determine the terminating locations for Private 800 numbers. Private 800 Customers share access on the same 800 number based on PIN and, thus, may not retain use of the 800 number if service is terminated. Holiday discounts do not apply to Private 800 charges.

2.4.2.1 The following charges apply to incoming calls that originate in Canada, Puerto Rico, the U.S. Virgin Islands, and Mexico and terminate in the Continental U.S., Alaska, and Hawaii.

First 30 Seconds Add'l 6 Seconds Canada $0.3750 $0.05000 Puerto Rico/U.S. Virgin Islands 0.2000 0.02625

Rate Per Minute Mexico1 Service Area 1 $0.75 Service Area 2 0.75 Service Area 3 1.70 Service Area 4 1.70

1 Mexico Service Areas are defined in Appendix D.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 97

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.4 Personal 800 (Continued)

2.4.2 MCI Private 800:

2.4.2.2 MCI Forward 800:

This feature allows MCI Private 800 Customers to temporarily change the telephone number to which his or her 800 calls terminate. After calling into a voice prompted system via a Company-provided 800 number, the Customer may specify a new telephone number to which its MCI Private 800 calls will terminate. There is no limit to the number of MCI Forward 800 transactions a Customer may make. The Customer will be charged $0.30 for each MCI Forward 800 transaction. The Customer may specify termination to any telephone number (including those PIC'd to the Company) available in the continental U.S., Alaska, and Hawaii.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 98

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

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ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 99

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.5 Telecommunications Relay Service (TRS): TRS is a service which permits hearing or speech impaired Customers who have been certified, in writing, by a licensed physician, audiologist, speech pathologist, or appropriate state or federal agency, as having a hearing or speech impairment which precludes oral communications and who use a Telecommunications Device for the Deaf (TDD), to complete calls to Customers who do not use TDD. Customers originating calls, either by voice or TDD, reach the MCI National TRS Center or a State TRS Center serving one of the states listed below via particular toll free numbers:

State

Arizona California Tennessee

A completed call is rated as a call from the originating telephone number to the terminating telephone number. This service includes domestic interstate and international calls. For domestic interstate calls, the rates specified in Section C-2.1.1 apply. For international calls, the usage rates set forth in Sections C-2.2.2.1.2, C-2.2.2.1 and C-3 apply. For domestic operator assisted calls, the usage rate set forth in Sections C-2.1.2 applies. All TRS calls are confidential. Standard tariffed rates will apply for calls placed to 900 or 976 numbers.

2.5.1 TRS Discount: Domestic calls placed through the MCI National TRS Center will receive a 15 percent discount during all time periods. International calls placed through the MCI National TRS Center are not eligible for discounts. Calls placed to 900 or 976 numbers are not eligible for TRS discounts. Calls placed through State TRS Centers serving one of the states listed above will be discounted as follows:

Discount

Arizona: 75% California: 15 Tennessee: 75

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 100

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

2. Interim Dial 1 Service (Continued)

2.6 Text Telephone Service: Text Telephone Service rates are available to qualified hearing or speech impaired persons who have been certified, in writing, by a licensed physician, audiologist, speech pathologist, or appropriate state or federal agency, as having a hearing or speech impairment which precludes oral communications and who have and use a text telephone for visual communications.

In lieu of the standard tariffed per-minute rates set forth in Sections C-2.1.1.1 and C-2.1.2, Customers will be charged the following per-minute rates for direct-dialed domestic Interim Dial 1 usage and Operator Assisted usage, based on rate period.

Peak Off-Peak

$0.07 $0.05

The written certification of the speech or hearing impairment must be presented to Company or, if Company so chooses, proof of certification, as defined above, may remain on file with the Customer's Local Exchange Carrier. Upon request, Company will furnish applicants with a certification form.

This rate adjustment will be provided for use only by the speech or hearing impaired customer and applies to direct dialed and operator assisted Interim Dial 1 for calls that originate from and are billed to the telephone number of the certified speech or hearing impaired person. Only one telephone number per residence is authorized for this discount. Operator assisted calls are eligible for this discount.

The following Time of Day rate periods apply: the Peak rate period applies from 7:00 a.m. to 6:59 p.m. Monday through Friday. The Off-Peak rate period applies from 7:00 p.m to 6:59 a.m. Monday through Friday, and all day Saturday and Sunday.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 101

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

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ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 102 CANCELS ORIGINAL PAGE NO. 102

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SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling)

Inbound Collect Calling is an inbound long distance service that allows Customers to originate calls from the international locations specified below and terminate them in the United States. Calls must be charged to the called party.

Calls are rounded to the next higher full minute. If the computed charge for any call includes a fraction of a cent, the fraction is rounded down to the next whole cent. Inbound calls from the following international locations will be calculated on a 60-second minimum duration basis, with additional 60-second increments. Calls are subject to per-minute usage charges, a per-call surcharge, and other charges imposed by the tariff, including those set forth in Section C-6.

Two methods of Inbound Collect calling from international locations are available. Inbound Collect calls from international locations will be allocated to the Company by foreign carriers and will be completed in one of the two methods as determined by the foreign carrier(s).

3.1 Per-Minute Usage Charges: The following per-minute usage charges apply:

3.1.1 Method 1: The following per-minute usage charges apply:

Country Per-Minute Afghanistan $ 7.60 Albania 7.86 D Andorra 3.43 Anguilla 3.34 Antarctia (Casey, Davis, Mawson, and Macquarie Island) 12.19 Antarctia (Scott Base) 4.58 Antigua (Barbuda) 3.26 Argentina 4.53 Armenia 7.11 Aruba 3.12 Ascension Island 5.53 Australia (including Tasmania) 3.47 Austria 3.25 Azerbaijan 7.11 Bahamas 2.60 Bahrain 5.14 Barbados 3.30

. D

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 103

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Country Per-Minute

Belarus $7.11 Belgium 3.67 Belize 4.23 Bermuda 2.80 Bolivia 4.83 Bosnia-Herzegovina 4.09 Botswana 4.18 Brazil 4.06 British Virgin Islands 3.12 Brunei 4.80 Bulgaria 4.37 Burkina Faso 6.75 Cambodia 8.39 Cameroon 5.06 Canada (See Below) Cape Verde Islands 6.09 Cayman Islands 3.63 Chile 3.43 China 6.71 Colombia 4.20 Cook Islands 9.32 Costa Rica 3.68 Croatia 3.89 Cuba 3.04 Cyprus 3.95 Czech Republic 4.27 Denmark 3.35 Dominica 3.55 Dominican Republic 3.47 Easter Island 3.43 Ecuador 4.05 Egypt 4.59 El Salvador 3.81

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 104

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Country Per-Minute

Eritrea $6.02 Estonia 7.11 Ethiopia 6.13 Faeroe Islands 3.50 Fiji Islands 6.03 Finland 3.60 France 2.74 French Antilles (including Martinique, St. Barthelemy, and St. Martin) 3.22 French Guiana 4.26 French Polynesia 5.47 Georgia 7.11 Germany 2.88 Ghana 5.26 Gibraltar 3.92 Greece 4.67 Grenada (including Carriacou) 3.54 Guadeloupe 3.26 Guatemala 3.81 Guinea 5.60 Guyana 5.10 Haiti 3.85 Honduras 3.99 Hong Kong 4.06 Hungary 3.72 Iceland 3.81 India 5.75 Indonesia 5.33 Iraq 6.62 Ireland 3.30 Israel 3.94 Italy 3.34 Ivory Coast 6.07

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 105

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Country Per-Minute

Jamaica $ 3.54 Japan 4.00 Jordan 4.89 Kazakhstan 7.11 Kenya 5.06 Kiribati 7.31 Korea, People's Democratic Republic of 10.51 Korea, Republic of 4.43 Kuwait 4.78 Kyrgyzstan 7.11 Latvia 7.11 Lebanon 8.47 Lesotho 4.07 Liberia 4.51 Liechtenstein 3.32 Lithuania 7.11 Luxembourg 3.60 Macao 5.90 Macedonia 4.24 Madagascar 8.75 Malawi 4.38 Malaysia 5.08 Maldives 7.30 Malta 4.99 Marshall Islands 5.26 Mexico (See Below) Micronesia 5.53 Midway1 Moldova 7.11

1 Service to this country or place is available only with the assistance of an operator and the applicable rates are specified in Section C-2.1.2.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 3rd REVISED PAGE NO. 106 CANCELS 2nd REVISED PAGE NO. 106

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Country Per-Minute

Monaco $ 2.74 Montenegro 4.13 Montserrat 3.43 Morocco 5.44 Namibia 4.36 Nauru 7.97 Netherlands 2.47 Netherlands Antilles (Sint Maarten) 3.34 T Nevis 3.38 New Caledonia 5.44 New Zealand 4.58 Nicaragua 4.23 Nigeria 4.51 Niue Island 8.68 Norfolk Island 12.19 Norway 3.06 Oman 5.28 Pakistan 8.44 Palau 7.22 Panama 3.74 Papua New Guinea 5.06 Paraguay 4.88 Peru 4.27 Philippines 4.89 Poland 3.63 Portugal (including Azores and Madeira Islands) 3.95 Qatar 5.35 Reunion Island 6.41 Romania 5.10 Russia 7.11 San Marino 3.41 Saudi Arabia 4.83 Senegal 5.63 Serbia 4.13 Seychelles 8.06

Issued: September 30, 2011 Effective: October 1, 2011

Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 42

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 107

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Country Per-Minute

Sierra Leone $6.30 Singapore 3.85 Slovakia 3.91 Slovenia 3.98 Solomon Islands 7.79 South Africa 3.72 Spain (including Balearic Islands, Canary Islands, Ceuta and Melilla) 3.77 Sri Lanka 7.22 St. Helena 7.23 St. Kitts 3.38 St. Lucia 3.43 St. Vincent/Grenadines 3.60 Sudan 8.22 Suriname 6.07 Swaziland 4.31 Sweden 3.03 Switzerland 3.32 Syria 7.11 Taiwan 4.81 Tajikistan 7.11 Tanzania 4.91 Thailand 4.93 Tonga 6.68 Trinidad/Tobago 3.63 Tunisia 4.59 Turkey 4.43

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 108 CANCELS ORIGINAL PAGE NO. 108

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Country Per-Minute

Turkmenistan $ 7.11 Turks and Caicos Islands 3.38 Tuvalu 9.92 Uganda 5.02 Ukraine 7.11 United Arab Emirates 4.06 United Kingdom 2.75 Uruguay 4.45 Uzbekistan 7.11 Vanuatu 10.06 Vatican City 3.34 Venezuela 3.24 Vietnam 5.72 Wake1 Western Sahara 5.44 Western Samoa 7.15 Yemen, Republic of 5.39 D Zaire 4.89 Zambia 4.78 Zimbabwe 4.65

1 Service to this country or place is available only with the assistance of an operator and the applicable rates are specified in Section C-2.1.2

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 ` Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 109 CANCELS ORIGINAL PAGE NO. 109

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Mexico

U.S. Portion

Per-Minute Mileage Standard/Economy

0 - 999+ $0.45 C D

D

Mexico Portion

1st Minute Add'l Minute Rate Step Standard/Economy Standard/Economy

1 $0.25 $0.26 2 0.55 0.49 3 2.39 1.19 4 3.30 1.54 5 5.39 2.25 6 7.18 2.53 7 10.31 3.38 8 10.92 3.51

Issued: April 30, 2007 Effective: May 1, 2007 Issued by: Tariff Administrator 201 Spear St., 9th Flr. San Francisco, CA 94105 Transmittal # 14

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 110

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.1 Method 1 (Continued)

Canada

Mileage Band Per-Minute Per-Minute

0 - 18 $0.64 $0.49 19 - 80 0.74 0.49 81 - 140 0.83 0.50 141 - 220 0.87 0.53 221 - 345 1.01 0.64 346 - 630 1.13 0.70 631 - 1200 1.29 0.75 1201 - 1610 1.36 0.82 1611 + 1.42 0.84

The following time of day periods apply for calls from Canada:

Business Day: 8 a.m. - 5:59 p.m. Monday - Friday Evening: 6 p.m. - 11:59 p.m. Monday - Friday, 8 a.m. - 11:59 p.m. Saturday-Sunday Night/Weekend: 12:00 a.m. - 7:59 a.m. Monday - Sunday

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 111

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

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ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2ND REVISED PAGE NO. 112 CANCELS 1ST REVISED PAGE NO. 112

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.2 Method 2: Method 2 charges for collect calls will not be accepted if the called party to whom the charges are to be shifted is at a payphone or institutional phone. The following per-minute usage charges apply:

Country Per Minute

Afghanistan $3.00 D Anguilla 3.85 Antigua (Barbuda) 3.77 Argentina 5.22 Armenia 3.00 Aruba 3.77 Australia (including Tasmania) 4.20 Bahamas 3.15 Bahrain 5.94 Bangladesh 4.10 Barbados 3.81 Belgium 4.23 Belize 4.87 Bermuda 3.00 Bolivia 5.58 Brazil 4.60 British Virgin Islands 3.59 Bulgaria 5.05 Canada 1.99 Cayman Islands 4.19 Chile 4.20 China 6.93 Colombia 4.84 Cook Islands 4.89 Costa Rica 4.46 Croatia 4.48

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1st REVISED PAGE NO. 113 CANCELS ORIGINAL PAGE NO. 113

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.2 Method 2 (Continued)

Country Per Minute

Cuba $3.19 Czech Republic 4.93 Dominica 4.09 Dominican Republic 4.01 Ecuador 4.27 Egypt 4.62 El Salvador 4.60 I Fiji Islands 7.00 I France 3.32 I French Antilles (including Martinique, St. Barthelemy and St. Martin) 3.37 I French Guiana 4.26 French Polynesia 6.64 I Gabon 2.29 I Germany 3.48 I Greece 5.38 Grenada (including Carriacou) 4.28 I Guadeloupe 3.26 Guatemala 4.60 I Guinea 2.19 I Guyana 5.78 Haiti 4.45 Honduras 4.83 I India 6.58 Indonesia 6.43 I Iraq 0.99 R Ireland 3.81 Israel 4.55 Italy 3.85 Ivory Coast 6.46

Issued: October 31, 2006 Effective: November 1, 2006 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 114 CANCELS 1st REVISED PAGE NO. 114

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.2 Method 2 (Continued)

Country Per Minute Jamaica $4.24 Japan 4.80 Jordan 5.64 Kazakhstan 3.68 Kenya 5.84 Kuwait 5.51 Lebanon 9.78 Liberia 2.49 Malaysia 6.15 Marshall Islands 6.08 Mexico 3.20 Micronesia 6.38 Morocco 5.81 Netherlands Antilles (Sint Maarten) 3.85 T Nevis 3.80 New Zealand 5.29 Nicaragua 4.87 Nigeria 2.00 Pakistan 3.90 Panama 4.71 Paraguay 5.62 Peru 5.00 Philippines 5.50 Poland 4.00 Portugal (including Azores and Madeira Islands) 4.35 Romania 5.51 Russia 3.50 Rwanda 2.19 Saudi Arabia 5.33 Serbia 4.30 Singapore 4.24 Slovakia 4.31 Solomon Islands 3.99 South Africa 4.10 South Korea 5.11

Korea, Republic of, moved and changed to South Korea

Issued: September 30, 2011 Effective: October 1, 2011

Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal# 42

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2ND REVISED PAGE NO. 115 CANCELS 1ST REVISED PAGE NO. 115

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.1 Per-Minute Usage Charges (Continued)

3.1.2 Method 2 (Continued)

Country Per Minute

Spain (including Balearic Islands, Canary Islands, Ceuta and Melilla) $4.45 St. Kitts 3.80 St. Lucia 3.80 St. Vincent/Grenadines 4.00 Sweden 3.34 Switzerland 3.65 Taiwan (See Below) Thailand 5.60 Tonga 7.36 Trinidad/Tobago 4.20 Turkey 4.87 Turks & Caicos Islands 3.90 Ukraine 3.00 I United Kingdom 3.40 United Arab Emirates 4.48 Uruguay 4.90 Uzbekistan 3.49 Venezuela 4.83 Vietnam 6.31

Country 1st Minute Additional Minute

Taiwan $5.91 $3.00

Issued: July 31, 2007 Effective: August 1, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105 Transmittal # 17

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 2nd REVISED PAGE NO. 116 CANCELS 1st REVISED PAGE NO. 116

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

3. International Inbound Collect Call Service (Inbound Collect Calling) (Continued)

3.2 Per-Call Surcharges: An undiscountable $9.99 per-call surcharge applies to Inbound Collect calls, except that for usage which originates in the following locations, the following undiscountable per-call surcharges apply:

Country Per-Call Surcharge

Canada 6.75 Cook Islands 5.50 Cuba 9.00 Mexico 9.00 Nigeria 5.50 Solomon Islands 5.50 Taiwan 6.50 D Uzbekistan 5.50

Issued: July 31, 2007 Effective: August 1, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Floor San Francisco, CA 94105 Transmittal # 17

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 117

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

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ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 118

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

4. On-Demand Satellite Mobile Service

On-Demand Satellite Mobile Service allows Customers of Interim Dial 1 service to access, via the Company’s network, the space and/or earth station facilities of authorized carriers to complete calls to terminal equipment designed specifically for this service. Upon enrollment in this service, the Company will inform the customer of the other carrier. The Company will not be responsible, nor will any credit be given, if communications offered under this service cannot be established or maintained due to faulty space and/or earth station facilities of the carrier or faulty terminal equipment.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 119

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

4. Satellite Mobile Service (Continued)

4.1 Application of Rates: Satellite Mobile Service rates will consist of a per-minute usage charge determined by the particular Access Code used by the Customer at the originating station when dialing a terminating station. This rate will apply in lieu of the per-minute usage charge associated with the Customer’s underlying service.

A $2.64 per-minute usage charges apply for usage which originates as follows and terminates via Access Codes 8816 and 8817 at terminal equipment provided in conjunction with this service: (i) outbound direct dial usage which originates in the U.S. Mainland, Hawaii and the U.S. Virgin Islands, (ii) calls placed with the assistance of an operator, excluding collect calls.

Standard tariffed per-call surcharges for international calls will apply to both domestic and international calls. Usage charges for this service will be applied to each minute or fraction thereof of a call.

The following per-minute charges apply for usage which originates as follows and terminates via the access codes shown below at terminal equipment provided in conjunction with this service: (i) outbound direct dial usage which originates in the U.S. Mainland, Hawaii and the U.S. Virgin Islands; and (ii) calls placed with the assistance of an operator, excluding collect calls.

Access Code Per-Minute Rate

8816 $2.64 8817 2.64 88216 1.85

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 120 CANCELS ORIGINAL PAGE NO. 120

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

5. Directory Assistance: Directory Assistance offerings are provided subject to the provisions set forth in Section B-2.13.3 herein.

For Customers who access Directory Assistance by dialing Area Code + 555-1212, an undiscountable charge of $3.49 per call will be applied to each call requesting Directory Assistance for a number in the U.S. Mainland, Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and CNMI. T An undiscountable charge of $2.49 per call will be applied to each call requesting international Directory Assistance for a number in Canada; an undiscountable charge of $7.94 per call will be applied to each call requesting international Directory Assistance for a number in all other countries. Up to two information requests may be made on each call to Directory Assistance. A charge will apply to each Directory Assistance call irrespective of whether the requested telephone number can be furnished. Directory Assistance calls will not count toward, nor be calculated as part of, volume discounts. Directory Assistance calls may be placed with the assistance of an operator.

A Customer may request that the Directory Assistance operator complete an Interim Dial-1 in the U.S. Mainland, Alaska, Hawaii, Puerto Rico, the U.S. Virgin Islands, American Samoa, Guam and T CNMI to one of the telephone numbers obtained in a Directory Assistance call. For any call completed, the Customer will be charged an additional undiscountable charge of $0.35, plus the applicable per- minute rate for Company service. This feature is not available to those accessing Directory Assistance by Casual Caller, or for calls to toll-free, 500, 700, 900 and 976 numbers.

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 4th REVISED PAGE NO. 121 CANCELS 3rd REVISED PAGE NO. 121

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

6. Other Charges: Pursuant to Section B-2.5, the charges set forth in Section C-6.1and C-6.3 will: (i) be calculated after the application of promotional and other discounts; (ii) not be eligible to receive promotional or any other discounts; (iii) not be included to determine satisfaction of usage volume requirements; (iv) be calculated based upon the rates and charges applicable to the Customer's total interstate and international usage, unless otherwise specified; (v) not apply to Taxes, tax-like, and/or tax-related surcharges as defined or described in the Publication; and (vi) not apply to calls using Telecommunications Relay Service (TRS) or to calls originated by certified Customers with hearing or speech impairments as described in Section C-2.6.

The following charges and other provisions apply:

6.1 Carrier Access Charge (formerly National Access Fee):

A monthly $0.24 charge per ANI which is presubscribed to Company service will be applied to invoices of Customers of Interim Dial 1 Commercial Service.

6.2 Carrier Cost Recovery Charge (CCRC) 1:

A charge equal to 3.5 percent of interstate and international charges, not including taxes, will be C applied to invoices of Customers of i) Interim Dial 1 Residential Service who also subscribe to local exchange service as set forth in MCImetro Access Transmission Services LLC, Tariff FCC No. 1, ii) Casual Caller Service, and iii) Interim Dial 1 Commercial Service. A charge of $1.75 will I be applied to invoices of Customers of Interim Dial 1 Residential Service who do not also subscribe to local exchange service as set forth in MCImetro Access Transmission Services LLC, Tariff FCC No. 1. This charge is to recover expenses the Company incurs with regards to the national fund for Telecommunications Relay Service, national number portability, and federal regulatory fees.

1 The Carrier Cost Recovery Charge will either be included as a component of individual call charges on a customer's invoice or it may be included as part of a separate line item on a customer's invoice.

Issued: April 29, 2011 Effective: May 1, 2011 Issued by: Vice President, Federal Regulatory T 1300 I Street NW T Washington, DC 20005 T Transmittal # 40

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 33rd REVISED PAGE NO. 122 CANCELS 32nd REVISED PAGE NO. 122

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

6. Other Charges: (Continued)

6.3 Federal Universal Service Fund (FUSF)1

Beginning July 1, 2014, a charge equal to 15.7 percent of all the charges, excluding Taxes, appearing on a (N) Residential Service or Commercial Service Customer’s invoice will apply. (N)

Beginning April 1, 2014, and ending June 30, 2014, a charge equal to 16.6 percent of all the charges, (C) excluding Taxes, appearing on a Residential Service or Commercial Service Customer’s invoice will apply.

Beginning January 1, 2014, and ending March 31, 2014, a charge equal to 16.4 percent of all the charges, excluding Taxes, appearing on a Residential Service or Commercial Service Customer’s invoice will apply.

Beginning October 1, 2013, and ending December 31, 2013, a charge equal to 15.6 percent of all the charges, excluding Taxes, appearing on a Residential Service or Commercial Service Customer’s invoice will apply.

Beginning July 1, 2013, and ending September 30, 2013, a charge equal to 15.1 percent of all the charges, excluding Taxes, appearing on a Residential Service or Commercial Service Customer’s invoice will apply.

Beginning April 1, 2013, and ending June 30, 2013, a charge equal to 15.5 percent of all the charges, excluding Taxes, appearing on a Residential Service or Commercial Service Customer’s invoice will apply.

Beginning January 1, 2013, and ending March 31, 2013, a charge equal to 16.1 percent of all the charges, excluding Taxes, appearing on a Residential Service or Commercial Service Customer’s invoice will apply.

(D) (D)

For International Inbound Collect Call Service, the FUSF level is determined by the designation of the line accepting the charges for the call. The Federal Universal Service Fee will either be included as a component of individual call charges on a Customer's invoice or it may be included as part of a separate line item on a Customer's invoice.

6.4 LEC Billing: Each Customer served by a LEC and who has designated the Company as his or her Primary Interexchange Carrier will receive a monthly invoice either directly from the Company or within the Customer's monthly LEC invoice in which the Customer’s LEC will render Company service invoices and collect Customer payments. Customers who enroll in Company service through their LEC will receive their monthly invoice within their monthly LEC invoice, where available, until the Customer selects to be invoiced directly from the Company. An undiscountable $3.99 monthly recurring charge2 will apply for Customers who receive their Company charges within the Customer’s monthly LEC invoice. This charge will not apply toward the satisfaction of usage volume requirements.

6.5 Paper Billing Fee: An undiscountable $1.99 monthly recurring charge1 will apply for Customers of Interim Dial 1 who select to be invoiced directly from the Company and who receive a paper invoice from the Company for service. This charge will not apply toward the satisfaction of usage volume requirements.

1 The Federal Universal Service Fee will either be included as a component of individual call charges on a customer's invoice or it may be included as part of a separate line item on a customer's invoice.

2 The charge will not apply to blind and visually impaired customers who request invoices in braille or large print.

Issued: June 26, 2014 Effective: July 1, 2014 Issued by: Vice President, Federal Regulatory 1300 I Street NW Washington, DC 20005 Transmittal # 56

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 123

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

6. Other Charges: (Continued)

6.6 Payphone Use Charge: An undiscountable $0.55 per call charge is applicable to calls that originate from any domestic payphone or associated facility used to access Company services. This charge, which is in addition to standard tariffed usage charges and any applicable surcharges associated with Company service, applies for the use of the instrument used to access Company service and is unrelated to the Company service accessed from the payphone or associated facility. Customers of Interim Dial 1 Service will be charged the payphone use charge for each call using Interim Dial 1 Service which is placed from a domestic payphone or associated facility. The payphone use charge does not apply to calls placed from payphones at which the Customer pays for service by inserting coins during the progress of the call.

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 124

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SECTION C: SERVICE DESCRIPTION AND CHARGES (Continued)

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Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 125 CANCELS ORIGINAL PAGE NO. 125

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS

STANDARD DISCOUNT ECONOMY Country START END START END START END

Afghanistan 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Albania 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Algeria 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM D Andorra 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Angola 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Anguilla 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Antarctica (Casey, Davis, Mawson, and Macquarie Island) 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Antarctica (Scott Base) 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Antigua (Barbuda) 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Argentina 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM Armenia 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Aruba 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Ascension Island 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Australia (including Tasmania) 2:00 PM 7:59 PM 8:00 PM 2:59 AM 3:00 AM 1:59 PM Austria 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Azerbaijan 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Bahamas 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM Bahrain 8:00 AM 2:59 PM 9:00 PM 7:59 AM 3:00 PM 8:59 PM Bangladesh 6:00 AM 5:59 PM 6:00 PM 5:59 AM Barbados 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Belarus 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Belgium 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Belize 5:00 PM 10:59 PM 8:00 AM 4:59 PM 11:00 PM 7:59 AM Benin 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Bermuda 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM

.

Issued: May 18, 2007 Effective: May 21, 2007 Issued by: Tariff Administrator 201 Spear Street, 9th Flr. San Francisco, CA 94105 Transmittal #15

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APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Bhutan 6:00 AM 5:59 PM 6:00 PM 5:59 AM Bolivia 4:00 PM 11:59 PM 7:00 AM 3:59 PM 12:00 AM 6:59 AM Bosnia-Herzegovina 1:00 PM 11:59 PM 7:00 AM 12:59 PM 12:00 AM 6:59 AM Botswana 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Brazil 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM British Virgin Islands 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM Brunei 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Bulgaria 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Burkina Faso 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Burundi 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Cambodia 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Cameroon 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Canada 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM (Monday-Friday) (Monday-Friday) (Monday-Sunday) 8:00 AM 11:59 PM (Saturday-Sunday) Cape Verde Islands 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Cayman Islands 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM Central African Republic 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Chad 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Chile 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM China 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Christmas Island 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Cocos Islands 2:00 PM 7:59 PM 8:00 PM 2:59 AM 3:00 AM 1:59 PM Colombia 4:00 PM 11:59 PM 7:00 AM 3:59 PM 12:00 AM 6:59 AM Comorros 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Congo 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Cook Islands 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM

ALL MATERIAL ON THIS PAGE IS NEW.

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APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Costa Rica 5:00 PM 10:59 PM 8:00 AM 4:59 PM 11:00 PM 7:59 AM Croatia 1:00 PM 11:59 PM 7:00 AM 12:59 PM 12:00 AM 6:59 AM Cuba 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Cyprus 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Czech Republic 7:00 AM 12:59 PM 1:00 PM 11:59 PM 12:00 AM 6:59 AM Denmark 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Diego Garcia 6:00 AM 5:59 PM 6:00 PM 5:59 AM Djibouti 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Dominica 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Dominican Republic 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Easter Island 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM Ecuador 4:00 PM 11:59 PM 7:00 AM 3:59 PM 12:00 AM 6:59 AM Egypt 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM El Salvador 5:00 PM 10:59 PM 8:00 AM 4:59 PM 11:00 PM 7:59 AM Equatorial Guinea 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Eritrea 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Estonia 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Ethiopia 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Faeroe Islands 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Falkland Islands 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM Fiji Islands 5:00 PM 1:59 AM 9:00 AM 4:59 PM 2:00 AM 8:59 AM Finland 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM France 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM French Antilles (including Martinique, St. Barthelemy and St. Martin) 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM French Guiana 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM French Polynesia 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Gabon 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM

ALL MATERIAL ON THIS PAGE IS NEW.

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APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Gambia 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Georgia 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Germany 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Ghana 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Gibraltar 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Greece 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Greenland 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Grenada (including Carriacou) 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Guadeloupe 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM Guantanamo Bay 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Guatemala 5:00 PM 10:59 PM 8:00 AM 4:59 PM 11:00 PM 7:59 AM Guinea 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Guinea Bissau 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Guyana 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM Haiti 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Honduras 5:00 PM 10:59 PM 8:00 AM 4:59 PM 11:00 PM 7:59 AM Hong Kong 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Hungary 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Iceland 1:00 PM 7:59 PM 7:00 AM 12:59 PM 8:00 PM 6:59 AM India 6:00 AM 5:59 PM 6:00 PM 5:59 AM Indonesia 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Iran 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Iraq 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Ireland 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Israel 8:00 AM 4:59 PM 12:00 AM 7:59 AM 5:00 PM 11:59 PM Italy 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Ivory Coast 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Jamaica 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

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APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Japan 2:00 PM 7:59 PM 8:00 PM 2:59 AM 3:00 AM 1:59 PM Jordan 8:00 AM 4:59 PM 12:00 AM 7:59 AM 5:00 PM 11:59 PM Kazakhstan 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Kenya 7:00 AM 4:59 PM 5:00 PM 12:59 AM 1:00 AM 6:59 AM Kiribati 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Korea, Democratic People's Republic of 2:00 PM 7:59 PM 8:00 PM 2:59 AM 3:00 AM 1:59 PM Korea, Republic of 2:00 PM 7:59 PM 8:00 PM 2:59 AM 3:00 AM 1:59 PM Kuwait 7:00 AM 4:59 PM 5:00 PM 12:59 AM 1:00 AM 6:59 AM Kyrgyzstan 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Laos 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Latvia 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Lebanon 8:00 AM 2:59 PM 9:00 PM 7:59 AM 3:00 PM 8:59 PM Lesotho 7:00 AM 4:59 PM 5:00 PM 12:59 AM 1:00 AM 6:59 AM Liberia 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Libya 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Liechtenstein 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Lithuania 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Luxembourg 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Macao 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Macedonia 1:00 PM 11:59 PM 7:00 AM 12:59 PM 12:00 AM 6:59 AM Madagascar 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Malawi 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Malaysia 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Maldives 6:00 PM 12:59 AM 1:00 AM 10:59 AM 11:00 AM 5:59 PM Mali (Mali Republic) 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Malta 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Marshall Islands 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Mauritania 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

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APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Mauritius 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Mayotte Island 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Mexico: 7:00 AM 6:59 PM All other hours (Monday-Friday and Sunday) Micronesia 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Midway 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Moldova 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Monaco 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Mongolia 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Montserrat 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Morocco 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Mozambique 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Myanmar 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Namibia 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Nauru 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Nepal 6:00 AM 5:59 PM 6:00 PM 5:59 AM Netherlands 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Netherlands Antilles 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM Nevis 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM New Caledonia 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM New Zealand 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Nicaragua 5:00 PM 10:59 PM 8:00 AM 4:59 PM 11:00 PM 7:59 AM Niger 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Nigeria 7:00 AM 4:59 PM 5:00 PM 12:59 AM 1:00 AM 6:59 AM Niue Island 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Norfolk Island 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Norway 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Oman 8:00 AM 2:59 PM 9:00 PM 7:59 AM 3:00 PM 8:59 PM Pakistan 6:00 AM 5:59 PM 6:00 PM 5:59 AM

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

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CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Palau 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Palestine 8:00 AM 4:59 PM 12:00 AM 7:59 AM 5:00 PM 11:59 PM Panama 5:00 PM 10:59 PM 8:00 AM 4:59 PM 11:00 PM 7:59 AM Papua New Guinea 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Paraguay 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM Peru 4:00 PM 11:59 PM 7:00 AM 3:59 PM 12:00 AM 6:59 AM Philippines 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Pitcairn Island 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Poland 7:00 AM 12:59 PM 1:00 PM 11:59 PM 12:00 AM 6:59 AM Portugal (including Azores and Madeira Islands) 1:00 PM 7:59 PM 7:00 AM 12:59 PM 8:00 PM 6:59 AM Qatar 7:00 AM 4:59 PM 5:00 PM 12:59 AM 1:00 AM 6:59 AM Reunion Island 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Romania 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Russia 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Rwanda 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM San Marino 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Sao Tome 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Saudi Arabia 7:00 AM 4:59 PM 5:00 PM 12:59 AM 1:00 AM 6:59 AM Senegal 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Serbia 1:00 PM 11:59 PM 7:00 AM 12:59 PM 12:00 AM 6:59 AM N Seychelles or Seychelles Islands 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Sierra Leone 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Singapore 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Slovakia 7:00 AM 12:59 PM 1:00 PM 11:59 PM 12:00 AM 6:59 AM Slovenia 1:00 PM 11:59 PM 7:00 AM 12:59 PM 12:00 AM 6:59 AM Solomon Islands 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Somalia 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM South Africa 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

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CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Spain (including Balearic Islands, Canary Islands, Ceuta and Melilla) 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Sri Lanka 6:00 AM 5:59 PM 6:00 PM 5:59 AM St. Helena 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM St. Kitts 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM St. Lucia 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM St. Pierre/Miquelon 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM St. Vincent/Grenadines 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Sudan 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Suriname 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM Swaziland 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Sweden 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Switzerland 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Syria 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Taiwan 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Tajikistan 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Tanzania 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Thailand 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Togo 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Tonga 5:00 PM 1:59 AM 9:00 AM 4:59 PM 2:00 AM 8:59 AM Trinidad/Tobago 4:00 PM 9:59 PM 7:00 AM 3:59 PM 10:00 PM 6:59 AM Tunisia 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Turkey 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Turkmenistan 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Turks and Caicos Islands 8:00 AM 4:59 PM 5:00 PM 10:59 PM 11:00 PM 7:59 AM Tuvalu 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Uganda 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 1ST REVISED PAGE NO. 133 CANCELS ORIGINAL PAGE NO. 133

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX A - INTERNATIONAL RATE PERIOD DEFINITIONS (Continued)

STANDARD DISCOUNT ECONOMY Country START END START END START END

Ukraine 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM United Arab Emirates 8:00 AM 2:59 PM 9:00 PM 7:59 AM 3:00 PM 8:59 PM United Kingdom 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Uruguay 7:00 AM 3:59 PM 4:00 PM 11:59 PM 12:00 AM 6:59 AM Uzbekistan 1:00 PM 1:59 AM 7:00 AM 12:59 PM 2:00 AM 6:59 AM Vanuatu 2:00 PM 7:59 PM 8:00 PM 2:59 AM 3:00 AM 1:59 PM Vatican City 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Venezuela 8:00 AM 5:59 PM 6:00 PM 11:59 PM 12:00 AM 7:59 AM Vietnam 5:00 PM 1:59 AM 2:00 AM 10:59 AM 11:00 AM 4:59 PM Wake 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Wallis and Futuna 2:00 PM 7:59 PM 8:00 PM 2:59 AM 3:00 AM 1:59 PM Western Sahara 7:00 AM 12:59 PM 1:00 PM 5:59 PM 6:00 PM 6:59 AM Western Samoa 5:00 PM 10:59 PM 10:00 AM 4:59 PM 11:00 PM 9:59 AM Yemen, Republic of 8:00 AM 2:59 PM 9:00 PM 7:59 AM 3:00 PM 8:59 PM D Zaire 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Zambia 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM Zimbabwe 6:00 AM 11:59 AM 12:00 PM 4:59 PM 5:00 PM 5:59 AM

Issued: December 28, 2007 Effective: January 1, 2008 Issued by: Tariff Administrator 201 Spear Street, 9th Flr San Francisco, CA 94105 Transmittal# 21

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 134

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX B - MEXICO RATE STEP DEFINITIONS

The Mexico portion of Mexico Calls will be rated based upon the first three dialed digits following the country code (52).

THREE THREE THREE DIALED RATE DIALED RATE DIALED RATE DIGITS STEP DIGITS STEP DIGITS STEP

222-229 7 371-377 7 448-449 6 231-233 7 378 6 451-455 7 235-239 7 379 7 456-458 6 241 7 381-389 7 459 7 243-249 7 391-394 7 461-465 6 271-279 7 395 6 466 7 281-283 7 411 6 467-469 6 285 7 413-415 6 471 7 287-288 7 417-419 6 472-478 6 294 7 421-426 7 481-485 6 296-297 7 427-429 6 486 5 311-319 7 431-432 6 487 6 321-329 7 433 5 488 5 331-339 7 434-436 7 489 6 341-343 7 437-438 6 492-496 6 344 6 439 7 498 5 345 7 441-442 6 499 6 346-348 6 443 7 349 7 444-445 6 351-359 7 447 7

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 135

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX B - MEXICO RATE STEP DEFINITIONS (Continued)

THREE THREE THREE DIALED RATE DIALED RATE DIALED RATE DIGITS STEP DIGITS STEP DIGITS STEP

551-559 7 639 5 687 6 586-589 7 641 3 694-695 7 591-597 7 642-644 5 696-698 6 611 3 645 1 711-719 7 612-613 6 646 3 721-729 7 614 4 647-649 5 731-737 7 615 5 651 1 738 6 616 4 652 4 739 7 618 6 653 1 741 8 621-622 5 655-656 1 742-743 7 623 4 658 1 744-745 8 624 7 659 4 746 6 625 4 661 1 747-749 7 626 1 662 4 751-754 7 627-629 5 664-665 1 755 8 631 1 667-668 6 756-757 7 632 3 669 7 758 8 633 1 671 5 759 6 634 3 672-675 6 761 6 635 5 676 5 762-763 7 636 2 677 6 764-765 6 637-638 3 686 1 766-767 7

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 136

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX B - MEXICO RATE STEP DEFINITIONS (Continued)

THREE THREE THREE DIALED RATE DIALED RATE DIALED RATE DIGITS STEP DIGITS STEP DIGITS STEP

768 6 828-829 3 891 1 769 7 831-832 5 892 2 771 7 833 6 894 1 772-774 6 834 5 897 1 775-776 7 835 4 899 1 777 7 836 5 913-914 8 778 6 841 2 916-919 8 779 7 842 4 921-924 8 781 8 844 4 932-934 8 782-785 6 845 6 936-968 8 786 7 861 3 951 8 789 6 862 2 953-954 8 791 7 863-864 3 958 8 797 7 866 4 961-969 8 811-819 4 867-868 1 971-972 8 821 4 869 4 981-988 8 823 2 871-872 5 991-999 8 824-826 3 873 2 827 4 877-878 1

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 137

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX C - EXPLANATION OF TYPES OF CALLS TO INMARSAT LOCATIONS

There are five types of calls to Atlantic, Indian, and Pacific Ocean Inmarsat locations which are described below. Volume discounts are not applicable for calls to Inmarsat locations. These rates apply to all hours and days. Inmarsat Standard A Service is calculated on a 60-second minimum duration basis, with additional 60-second increments. Other service type call increments may be found in the appropriate section.

Inmarsat Aeronautical Service: For digital-based calls made to aeronautical terminals using the dialing pattern of: International Access Code (011) + Ocean Region Code (three-digits) + Standard B Terminal number (nine-digits, beginning with, and including the digit "5").

Inmarsat Standard A Service: For analog-based calls made to mobile terminals using the dialing pattern of: International Access Code (011) + Ocean Region Code (three-digits) + Standard A terminal number (seven-digits, beginning with, and including the digits "1", "8", or "9").

Inmarsat Standard B Service: For digital-based calls made to mobile terminals using the dialing pattern of: International Access Code (011) + Ocean Region Code (three-digits) + Standard B Terminal number (nine-digits, beginning with, and including the digit "3").

Inmarsat Standard M Service: For digital-based calls made to mobile terminals using the dialing pattern of: International Access Code (011) + Ocean Region Code (three-digits) + Standard M Terminal number (nine-digits beginning with, and including the digit "6").

Inmarsat Mini-M Service: For digital-based calls made to mobile terminals using the dialing pattern of: International Access Code (011) + Ocean Region Code (three-digits) + Mini-M Terminal number (nine- digits; beginning with, and including the digit "7").

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147

MCI COMMUNICATIONS SERVICES, INC. TARIFF F.C.C. NO. 1 ORIGINAL PAGE NO. 138

CASUAL CALLER, INTERIM DIAL 1, INBOUND COLLECT CALL SERVICES AND ON-DEMAND MOBILE SATELLITE SERVICE

APPENDIX D - MEXICO SERVICE AREAS

M1 or Zone 1 M2 or Zone 1 M3 or Zone 3 M4 or Zone 4 M4 or Zone 4 Chihuahua Ciudad Actopan Acapulco (Continued) Ciudad Obregon Aguascalientes Autlan de Minatitlan Camargo Ensenada Celaya Navarro Morelia Ciudad Juarez Guaymas Ciudad Valles Campeche Oaxaca Ciudad Miguel Hermosillo Ciudad Victoria Cancun Ocotlan Aleman Mexicali Culiacan Chalco Orizaba Delicias Navojoa Durango Chilpancingo Poza Rica Hidalgo del Nogales Irapuato Ciudad Puebla Parral San Luis Rio La Paz Guzman Tapachula Matamoros Colorado Leon Coatzacoalcos Tehuacan Monclova Tijuana Los Mochis Colima Tenosique Monterrey Mazatlan Cordoba Tepatitlan Nuevo Laredo Pachuca Cosamaloapan Tepic Piedras Negras Queretaro Cuatitlan Texcoco Reynosa Salamanca Cuautla Texiutlan Sabinas San Luis Potosi Cuernavaca Tlaxcala Saltillo Tampico Guadalajara Toluca Torreon Iguala Tulancingo Tula Jalapa Tuxtla Zacatecas Juchitan Gutierrez Lazaro Uruapan Cardenas Veracruz Loma Bonita Villahermosa Macuspana Zamora Manzanillo Zihuatanejo Merida Mexico City

ALL MATERIAL ON THIS PAGE IS NEW.

Issued: September 30, 2005 Effective: October 1, 2005 Issued by: Tariff Administrator 22001 Loudoun County Parkway Ashburn, VA 20147