AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco

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AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 85th Revised Check Sheet A U-1001-C Cancels 84th Revised Check Sheet A

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

(D)

CC: 5170

Advice Letter No. 34306 Issued by Date Filed: December 29, 2008

Decision No. Eric Batongbacal Effective: December 30, 2008

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 1st Revised Table of Contents Sheet A U-1001-C Cancels Original Table of Contents Sheet A

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

TABLE OF CONTENTS

Sheet No.

1.1 GENERAL INFORMATION ...... 1

1.1.1 APPLICABILITY ...... 1

1.1.2 FILING OF RATES AND REGULATIONS ...... 1

1.1.3 TERRITORY SERVED - SERVICE RENDERED - RATES AND REGULATIONS .. 2

1.1.4 AVAILABILITY OF TARIFF SHEETS ...... 2

1.1.5 CURRENT LOCATION OF PUBLIC OFFICES AND TARIFF SCHEDULES ...... 4

1.1.6 LIST OF SCHEDULES - ALPHABETICAL AND NUMERICAL ...... 10 A. ALPHABETICAL ...... 10 B. NUMERICAL ...... 10

1.1.7 SYMBOLS AND ABBREVIATIONS ...... 11 A. SYMBOLS ...... 11 B. ABBREVIATIONS ...... 12 C. TRADEMARKS AND SERVICE MARKS ...... 13

1.1.8 LIST OF EXCHANGE AREAS ...... 14

1.1.9 HOW TO USE THIS TARIFF ...... 18 A. TARIFF STRUCTURE ...... 18 B. LOCATION OF MATERIAL ...... 18 C. ABBREVIATIONS AND DEFINITIONS ...... 18 D. PAGE NUMBERING ...... 19 E. REFERENCE TO OTHER TARIFFS ...... 19

1.1.10 LIST OF CONCURRING LOCAL EXCHANGE CARRIERS...... 19.1

1.2 SUBJECT INDEX ...... 20

Advice Letter No. 14889 Issued by Date Filed: December 27, 1993

Decision No. Eric Batongbacal Effective: February 5, 1994

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 7th Revised Sheet 1 U-1001-C Cancels 6th Revised Sheet 1

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION

All references to Pacific Bell and Pacific Bell Telephone Company are to be considered interchangeable for purposes of these tariff schedules. Pacific Bell Telephone Company assumes the rates, conditions and obligations of the appropriate tariffs on file with the Public Utilities Commission of the State of California under the name of The Pacific Telephone and Telegraph Company. Pacific Bell Telephone Company is doing business as SBC Pacific Bell Telephone Company, SBC California and (T) AT&T California ("Pacific Bell Telephone Company d/b/a SBC Pacific Bell (N) Telephone Company d/b/a SBC California and d/b/a AT&T California"). (N)

This schedule contains a general statement relative to the filing of rates and regulations, the territory served and service rendered, the availability of tariff sheets and an alphabetical list of exchanges in California.

This schedule also lists in both alphabetical and numerical order the tariff schedules of Pacific Bell Telephone Company on file with the Public Utilities Commission of the State of California.

1.1.1 APPLICABILITY

Applicable to private line telephone service(s) furnished or made available by Pacific Bell Telephone Company d/b/a SBC Pacific Bell Telephone Company d/b/a SBC California and d/b/a AT&T California, (N) hereinafter referred to as the Utility, over facilities wholly within the State of California, between stations, all of said stations being within a Local Access and Transport Area (LATA) as listed in the Access Service Tariff Schedule Cal.P.U.C. No. 175-T.

1.1.2 FILING OF RATES AND REGULATIONS

The schedules of rates and regulations have been regularly filed with the Public Utilities Commission of the State of California, and are the effective rates and regulations of this Utility.

No officer, employee or agent of the Utility has any authority to waive, alter or amend in any respect these rates and regulations, or any part thereof, or to make any agreements inconsistent therewith.

The rates and regulations set forth in the Schedules are subject at all times to addition, change or abolition after proceedings duly had by the Public Utilities Commission of the State of California and changes in the rates and regulations herein set forth must first be approved or accepted by the Public Utilities Commission of the State of California.

Continued

Advice Letter No. 27742 Issued by Date Filed: December 8, 2005

Decision No. Eric Batongbacal Effective: January 7, 2006

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 10th Revised Sheet 2 U-1001-C Cancels 9th Revised Sheet 2

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd)

1.1.3 TERRITORY SERVED - SERVICE RENDERED - RATES AND REGULATIONS

Pacific Bell Telephone Company d/b/a SBC Pacific Bell Telephone Company d/b/a SBC California and d/b/a AT&T California renders access service, exchange telephone service, toll telephone service, private line services, mobile telephone service, and telephone directory service throughout the territory served within a Local Access and Transport Area (LATA) by it and its Connecting Companies as shown in its schedules, which include a description of the service furnished, and maps filed herewith.

The procedure which will be followed by the Company in rendering service is set forth in Schedule Cal.P.U.C. No. B2. in which are included definitions explaining phrases and terms used.

Each sheet of each schedule bears a designating Cal.P.U.C. number and also the date filed and the date upon which it became effective.

1.1.4 AVAILABILITY OF TARIFF SHEETS

1. Current Tariff Sheets Approved and Accepted by the California Public Utilities Commission:

a. The master copy of each sheet of each schedule with the effective date is filed at the Company's headquarters building, 430 Bush Street, (T) San Francisco, California 94108. (T)

b. Each sheet of each schedule is available for public inspection at the Company’s headquarters, 430 Bush Street, San Francisco, California (T) 94108 and on the Company’s website (www.att.com/servicepublications). (T)

c. Copies of each sheet of each schedule accepted and approved by the California Public Utilities Commission may be obtained at a charge by writing:

Executive Director - Regulatory Pacific Bell Telephone Company 430 Bush Street, 1st Floor (T) San Francisco, California 94108 (T)

Continued

Advice Letter No. 44630 Issued by Date Filed: June 26, 2015

Decision No. Eric Batongbacal Effective: June 27, 2015

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 6th Revised Sheet 3 U-1001-C Cancels 5th Revised Sheet 3

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.4 AVAILABILITY OF TARIFF SHEETS (Cont'd)

2. Changes in Rates and Regulations covered by Advice Letters and Related Tariff sheets when filed and Prior to Acceptance and Approval by the California Public Utilities Commission:

a. Copies of advice letters and associated tariff sheets, when filed, shall automatically be furnished without charge to the following:

(1) Competing utilities either privately or publicly owned.

(2) Adjacent utilities either privately or publicly owned.

(3) Utilities, either privately or publicly owned, having requested such notification

(4) An individual, firm, company, corporation, or association, or a legally authorized agent for the same, who is an existing customer of or an applicant for a service or group of services and who is directly affected by the particular tariff filing, or who has demonstrated their interest by participation in a related proceeding before the Commission as a respondent, an "interested party" or a party of record requesting specific tariffs by writing:

Executive Director - Regulatory Pacific Bell Telephone Company 430 Bush Street, 1st Floor (T) San Francisco, California 94108 (T)

b. Others who may wish copies, when filed by the Company, of specific (T) advice letters and associated tariff sheets or copies of all subsequent advice letters and associated tariff sheets for specified schedules may obtain them at a charge by writing:

Executive Director - Regulatory Pacific Bell Telephone Company (T) 430 Bush Street, 1st Floor San Francisco, California 94108 (T)

Continued

Advice Letter No. 44630 Issued by Date Filed: June 26, 2015

Decision No. Eric Batongbacal Effective: June 27, 2015

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 10th Revised Sheet 4 U-1001-C Cancels 9th Revised Sheet 4

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd)

1.1.5 CURRENT LOCATION OF PUBLIC OFFICES AND TARIFF SCHEDULES

Public Tariff Schedule Address Office Location

(D) (D)

Continued

Advice Letter No. 19457 Issued by Date Filed: May 29, 1998

Decision No. Eric Batongbacal Effective: September 3, 1998

Executive Director Resolution No. T-16193

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 12th Revised Sheet 5 U-1001-C Cancels 11th Revised Sheet 5

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.5 CURRENT LOCATION OF PUBLIC OFFICES AND TARIFF SCHEDULES (Cont'd)

Public Tariff Schedule Address Office Location

(D)

Continued

Advice Letter No. 19461 Issued by Date Filed: June 1, 1998

Decision No. Eric Batongbacal Effective: September 3, 1998

Executive Director Resolution No. T-16193

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 14th Revised Sheet 6 U-1001-C Cancels 13th Revised Sheet 6

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.5 CURRENT LOCATION OF PUBLIC OFFICES AND TARIFF SCHEDULES (Cont'd)

Public Tariff Schedule

Address Office Location

(D) (D)

Continued

Advice Letter No. 19696 Issued by Date Filed: September 18, 1998

Decision No. Eric Batongbacal Effective: December 17, 1998

Executive Director Resolution No. T-16247

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 11th Revised Sheet 7 U-1001-C Cancels 10th Revised Sheet 7

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont’d) 1.1.5 CURRENT LOCATION OF PUBLIC OFFICES AND TARIFF SCHEDULES (Cont'd)

Public Tariff Schedule

Address Office Location

(D) (D)

Continued

Advice Letter No. 19814 Issued by Date Filed: November 9, 1998

Decision No. Eric Batongbacal Effective: April 22, 1999

Executive Director Resolution No. T-16278

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 14th Revised Sheet 8 U-1001-C Cancels 13th Revised Sheet 8

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.5 CURRENT LOCATION OF PUBLIC OFFICES AND TARIFF SCHEDULES (Cont'd)

Public Tariff Schedule Address Office Location

(D)

Continued

Advice Letter No. 20201 Issued by Date Filed: April 23, 1999

Decision No. Eric Batongbacal Effective: June 24, 1999

Executive Director Resolution No. T-16310

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 6th Revised Sheet 9 U-1001-C Cancels 5th Revised Sheet 9

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd)

1.1.5 CURRENT LOCATION OF PUBLIC OFFICES AND TARIFF SCHEDULES (Cont'd)

Public. Tariff Schedule Address Office Location

(D) (D)

Continued

Advice Letter No. 19673 Issued by Date Filed: September 4, 1998

Decision No. Eric Batongbacal Effective: December 17, 1998

Executive Director Resolution No. T-16247

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 17th Revised Sheet 10 U-1001-C Cancels 16th Revised Sheet 10

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd)

1.1.6 LIST OF SCHEDULES - ALPHABETICAL AND NUMERICAL

A. ALPHABETICAL

SCHEDULE CAL.P.U.C. NUMBER SUBJECT

B3. Analog Services B8. Connections of Premises Equipment to Private Line Services B5. Digital Services B6. Reserved (T) B2. General Regulations B1. Preliminary Statement

B. NUMERICAL

B1. Preliminary Statement B2. General Regulations B3. Analog Services B4. Reserved B5. Digital Services B6. Reserved (T) B7. Reserved B8. Connections of Premises Equipment To Private Line Services B9. Reserved B10. Reserved

(D)

Continued

Advice Letter No. 27506 Issued by Date Filed: October 14, 2005

Decision No. Eric Batongbacal Effective: November 14, 2005

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 1st Revised Sheet 11 U-1001-C Cancels Original Sheet 11

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (CONT'D)

1.1.7 SYMBOLS AND ABBREVIATIONS

A. SYMBOLS

(D) To signify discontinued material, including listing, rate, rule or regulation

(I) To signify increase

(L) To signify material relocated from or to another part of tariff schedules with no change in text, rate, rule or regulation

(N) To signify new material including listing, rate, rule or regulation

(R) To signify reduction

(T) To signify change in wording of text but not change in rate, rule or regulation

Continued

Advice Letter No. 14889 Issued by Date Filed: March 4, 1985

Decision No. Eric Batongbacal Effective: April 18, 1985

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 7th Revised Sheet 12 U-1001-C Cancels 6th Revised Sheet 12

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (CONT'D) 1.1.7 SYMBOLS AND ABBREVIATIONS CONT'D)

B. ABBREVIATIONS

(D) (D) ATU - Agency Terminal Unit bps - bits per second BTC - Basic Termination Charge CPE - Customer Provided Equipment CS - Check Sheet (D) (D) db - decibel dc - direct current DCE - Data Circuit Equipment DDS - Digital Data Service DLC - Derived Local Channel (D) DS - Digital Services (D) DT - Data Transmission DTE - Data Terminating Equipment ETS - Electronic Tandem Switching FDX - Full Duplex (D) HDX - Half Duplex (D) HZ - Hertz IC - Installation Charge INC - Intrabuilding Network Cable Kbps - kilobits per second kHz - kiloHertz LATA - Local Access and Transport Area (D) (D)

Continued

Advice Letter No. 17200 Issued by Date Filed: December 22, 1994

Decision No. Eric Batongbacal Effective: January 1, 1995

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 8th Revised Sheet 12.1 U-1001-C Cancels 7th Revised Sheet 12.1

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT 1.1 GENERAL INFORMATION (Cont'd) 1.1.7 SYMBOLS AND ABBREVIATIONS Cont'd) B. ABBREVIATIONS (Cont'd)

Mbps - Megabits per second MCS - Metering Control and Signaling MHz - MegaHertz MR - Monthly Rate NA - Not Applicable NO - No rate or charge applicable NRC - Nonrecurring Charge OCC - Other Common Carrier PBX - Private Branch Exchange z PR - Priority Restoration RR - Reference Rated SAE - Special Assembly of Equipment STU - Subscriber Terminal Unit TAS - Telephone Answering Service ToC - Table of Contents TM - Teletypewriter and Morse TSP - Telecommunications Service Priority USOC - Uniform Service Order Codes V&H - Vertical and Horizontal Coordinate

z Correction - Material inadvertently left in Advice Letter No. 15176, effective July 15, 1990. Continued

Advice Letter No. 16228 Issued by Date Filed: May 20, 1993

Decision No. Eric Batongbacal Effective: May 25, 1993

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 7th Revised Sheet 13 U-1001-C Cancels 6th Revised Sheet 13

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.7 SYMBOLS AND ABBREVIATIONS (Cont'd)

C. TRADEMARKS AND SERVICE MARKS

The following marks, used throughout these tariff schedules are trademarks and service marks of the American Telephone and Telegraph Company:

Registered Trademarks

1 Bellboy

Registered Service Marks

Touch-Tone

Unregistered Trademarks

Touch-Tone

The following marks, used throughout these tariff schedules, are trademarks and service marks of SBC:

Registered Service Marks

Premiere 976 Information Access

The following marks, used throughout these tariff schedules, are trademarks and service marks of Base Ten Systems, Inc.

Registered Trademarks

Subscriber Terminal Unit STU

Telcordia® and Common Language® are registered trademarks and iconectiv, (N) CLCI, CLEI, CLFI, CLLI, USOC, FID, NC, NCI and NC/NCI, are trademarks of Telcordia Technologies, Inc. The Common Language codes identified herein are the proprietary information of Telcordia Technologies, Inc. d/b/a iconectiv ("iconectiv") and are licensed to AT&T Services, Inc. The Common Language codes provided herein, if applicable, are solely for the purpose of this Tariff and may not be reproduced, stored or used for any other purpose without the express, written consent of iconectiv. (N)

NOTE 1: Assigned to all Regional Holding Companies by American Telephone and Telegraph Company. Continued

Advice Letter No. 43989 Issued by Date Filed: September 17, 2014

Decision No. Eric Batongbacal Effective: September 17, 2014

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 2nd Revised Sheet 14 U-1001-C Cancels 1st Revised Sheet 14

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd)

1.1.8 RESERVED

For a list of exchanges where the Utility provides service, refer to (T) Schedule Cal.P.U.C. No. A5.1.1,A. (T)

(D)

Continued

Advice Letter No. 15832 Issued by Date Filed: October 31, 1990

Decision No. Eric Batongbacal Effective: December 10, 1990

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 2nd Revised Sheet 15 U-1001-C Cancels 1st Revised Sheet 15

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.8 RESERVED

(D)

Continued

Advice Letter No. 15832 Issued by Date Filed: October 31, 1990

Decision No. Eric Batongbacal Effective: December 10, 1990

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 3rd Revised Sheet 16 U-1001-C Cancels 2nd Revised Sheet 16

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.8 RESERVED

(D)

(D) Continued

Advice Letter No. 15832 Issued by Date Filed: October 31, 1990

Decision No. Eric Batongbacal Effective: December 10, 1990

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 3rd Revised Sheet 17 U-1001-C Cancels 2nd Revised Sheet 17

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.8 RESERVED

(D)

(D) Continued

Advice Letter No. 15832 Issued by Date Filed: October 31, 1990

Decision No. Eric Batongbacal Effective: December 10, 1990

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 4th Revised Sheet 18 U-1001-C Cancels 3rd Revised Sheet 18

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd)

1.1.9 HOW TO USE THIS TARIFF

A. TARIFF STRUCTURE

The Utility has sets of tariffs on file with the California Public (T) Utilities Commission. The "A" tariffs contain Network and Exchange Service offerings, the "B" tariffs Private Line Service offerings, the "D" tariffs Other Services, and the "175-T" tariffs Access Service (T) offerings. The tariff format is as follows:

A set of tariffs ("A" or "B") is divided into alpha/numerical sections.

Each alpha/numeric section is a separate tariff schedule and contains a generic group of service offerings (i.e., B3. ANALOG SERVICES).

Within each section or schedule are sub-sections containing specific service offerings (i.e., 3.2 Classification and Rates).

Variations within a service offering are broken into sub-subsections (i.e., 3.2.6 - Series 6000 channels, 3.2.10 - Series 1000 channels).

B. LOCATION OF MATERIAL

To locate material in this tariff, refer to the General Table of Contents for the section desired. For a more precise listing, refer to the Table of Contents located in front of each section.

C. ABBREVIATIONS AND DEFINITIONS

A list of abbreviations used in this tariff is contained in Schedule Cal.P.U.C. No. B1.1.7. In addition, the General Regulations section, Schedule Cal.P.U.C. No. B2., contains a Definitions subsection which defines certain technical terms and items which have a specific meaning within the context of this tariff.

Continued

Advice Letter No. 29007 Issued by Date Filed: October 30, 2006

Decision No. Eric Batongbacal Effective: October 31, 2006

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 3rd Revised Sheet 19 U-1001-C Cancels 2nd Revised Sheet 19

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL INFORMATION (Cont'd) 1.1.9 HOW TO USE THIS TARIFF (Cont'd)

D. PAGE NUMBERING

Page numbers appear in the upper-right corner of the page. Pages are numbered sequentially. When a new page is added between existing pages with whole numbers, a decimal is added. For example, a new page added between Pages 34 and 35 would be 34.1.

E. REFERENCE TO OTHER TARIFFS

Whenever reference is made to other tariffs, sections, subsections or sub-subsections, the location is listed in its entirety (i.e., Schedule Cal.P.U.C. No. B3.2.12,A.3.C.). (T)

When reference is made to an item within the same sub-subsection the sequence leading to that subsection is not repeated, only the specific location of the referenced item is listed (i.e., C.1.b. preceding).

Continued

Advice Letter No. 17200 Issued by Date Filed: December 22, 1994

Decision No. Eric Batongbacal Effective: January 1, 1995

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 3rd Revised Sheet 19.1 U-1001-C Cancels 2nd Revised Sheet 19.1

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL REGULATIONS (Cont'd)

1.1.10 LIST OF CONCURRING LOCAL EXCHANGE CARRIERS

1. Concurring Local Exchange Carriers have on file with the California Public Utilities Commission a list of Pacific Bell's Tariff Schedules in which each concurs.

2. Following is a list of Concurring Local Exchange Carriers that concur in portions of this Tariff.

ALLTEL - Western Region (N) (D) Calaveras Telephone Company (D) California-Oregon Telephone Company Pinnacles Telephone Company Citizens Utilities Company (N) Ponderosa Telephone Co., The Contel of California, Inc. (T) Roseville Telephone Company (D) Sierra Telephone Company, Inc. (D) Siskiyou Telephone (N) Ducor Telephone Company Company, The Evans Telephone Company TDS-Telecom-Pac Div. (N) Foresthill Telephone Company Volcano Telephone Co., The (D) GTE West Coast, Inc. (T) (D) Kerman Telephone Company (N)

3. Reserved

Continued

Advice Letter No. 17200 Issued by Date Filed: December 22, 1994

Decision No. Eric Batongbacal Effective: January 1, 1995

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 1st Revised Sheet 19.2 U-1001-C Cancels Original Sheet 19.2

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.1 GENERAL REGULATIONS (Cont'd) 1.1.10 LIST OF CONCURRING LOCAL EXCHANGE CARRIERS (Cont'd) 3. (D)

(D)

Advice Letter No. 15765 Issued by Date Filed: June 25, 1990

Decision No. Eric Batongbacal Effective: December 19, 1990

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 7th Revised Sheet 20 U-1001-C Cancels 6th Revised Sheet 20

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.2 SUBJECT INDEX SCHEDULE CAL. SUBJECT P.U.C. NO. B

Advance Payments and Deposits 2.4 Alphabetical List of Schedules 1.1.6 Analog Services 3.2.3 Audio - Series 6000 3.2.6 (D) Classification of Channels 3.1.1 Entrance - Series 10000 3.2.10 (T) Metallic, Telegraph and Voice Grade 3.2.1;3.2.3 (T) Miscellaneous Experimental 3.2.12 Monitoring Series 1000 3.2.1 One-Way Program Transmission - Series 6000 3.2.6 One-Way Speech Networks - Series 6000 3.2.6 Program Channels - Series 6000 3.2.6 Remote Metering - Series 1000 3.2.1 Remote Operation of Private Mobile 3.2.2 Radiotelephone Systems - Series 2000 Series 6000 - 10000 3.2 Signaling Purposes - Series 1000 3.2.1 Special Assembly 3.2.11 Supervisory Control - Series 1000 3.2.1 (T) Television Transmission - Series 7000 3.2.7 Video - Series 7000 3.2.7 Voice Grade (Voice) 3.2.2 Voice Grade (Data) 3.2.3 Application for Service 2.2.7 Attack Warning Service 3.2.12

Bell and Lights System 3.2.12

Cancellation of Application 2.4.4 Channel Conditioning 3.3.1 Channel Derivation Devices 8.1.6 Civil Air Raid Warning System - Other Channels 3.2.12 Connections of Premises Equipment 8.

Continued

Advice Letter No. 30677 Issued by Date Filed: August 13, 2007

Decision No. Eric Batongbacal Effective: August 14, 2007

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 9th Revised Sheet 21 U-1001-C Cancels 8th Revised Sheet 21

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.2 SUBJECT INDEX (Cont'd)

SCHEDULE SUBJECT CAL.P.U.C. NO. B. Data Communications 3.2.3 Data Transmission Channels 3.2.3

(D) Defacement of Premises 2.2.3 Definitions 2.1 Deposits 2.4.1 Digital Data Service 5.1;5.2;5.3 Digital Services 5.

Entrance Facilities 3.2.10 Experimental Channels 3.2.11 Extension Service 3.1.2

Fraud or Abuse 2.2.3

General Regulations 2. Grandfathered Terminal Equipment 8.1.3

Hazardous or Inaccessible Locations 8.1.10

Institutional Program for Premises Wiring Charge 8.1.18 Interruptions, Allowance for 2.4.8

Limitation of Liability 2.2.3

Maintenance and Repair 2.3.2 Maintenance of Service 8.1.18 Mileage Measurements 3.1.4 Mileage Charges 3.1.4 Minimum Service Period 2.4.3 Miscellaneous Experimental Channels 3.2.12 Move and Change Charges 3.1.5

Numerical List of Schedules 1.1.6

Obligation to Furnish Service 2.2 One-Way Program Transmission 3.2.6 One-Way Speech Networks 3.2.6

(D)

Continued

Advice Letter No. 27506 Issued by Date Filed: October 14, 2005

Decision No. Eric Batongbacal Effective: November 14, 2005

Executive Director Resolution No.

AT&T California SCHEDULE CAL.P.U.C. NO. B1 San Francisco, California 8th Revised Sheet 22 U-1001-C Cancels 7th Revised Sheet 22

PRIVATE LINE SERVICES

B1. PRELIMINARY STATEMENT

1.2 SUBJECT INDEX (CONT'D) SCHEDULE CAL. SUBJECT P.U.C. NO. B

Payment for Service 2.4.1 Poll Star DLC Security Transport Service 10. Priority Restoration 2.2.8 Private Line Telephone Service 3.2.2 Public Office Locations 1.1.5

Series 1000 Channels 3.2.1;3.3.3 Series 2000 Channels 3.2.2;3.3.1-3.3.3 Series 3000 Channels 3.2.3;3.3.1;3.3.3 Series 6000 Channels 3.2.6 Series 7000 Channels 3.2.7 Series 10000 Channels - Entrance Channels 3.2.10 Service Discontinuance 2.6 (N) Signal Channels 3.2.1 Signaling Options 3.3.2 Standard of Time 2.4.1 Supervisory Control Channels 3.2.1 Switching Arrangements 3.3.4

Tariff Sheets, Availability of 1.1.4 Telecommunications Service Priority 2.2.8 Television Transmission 3.2.7 Test Equipment, Customer-Provided 8.1.15 Transmitting Messages 2.2.1

Unlawful Use of Service 2.5

Video Channels 3.2.7

Voice Frequency Monitoring 3.2.1;3.2.3

Advice Letter No. 47952 Issued by Date Filed: July 17, 2019

Decision No. Peter Hayes Effective: July 17, 2019

Assistant Vice President Resolution No.