Maine Public Utilities Commission APPROVED TELECOMMUNICATION COMPANIES IXC/IXF-INTEREXCHANGE COMPANIES (Provides Instate Toll Se

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Maine Public Utilities Commission

APPROVED TELECOMMUNICATION COMPANIES IXC/IXF-INTEREXCHANGE COMPANIES (Provides Instate Toll Service) CLEC-COMPETITIVE LOCAL EXCHANGE CARRIERS (Provides Basic Exchange Service)

June 22, 2006

IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 5/31/01 01-257 01/17/01 97-742 BOTH 1-800-RECONEX, Inc. 503-982-8000 1. 01/19/01 00-844 1/19/01 00-844 BOTH (F) 360networks (USA), Inc. 303-854-5210 2. 11/05/02 02-609 IXC 3U Teleocm, Inc. 702-260-4399 3.

5/1/02 02-167 IXC ACCXX Communications, Inc. 813-864-8081 4. 12/22/97 97-881 IXC ACSI Local Switched Service, Inc. 301-361-4200 5. 11/21/01 01-569 11/21/01 01-569 BOTH ARC Network, Inc. d/b/a InfoHighway 516-582-2222 6. (F,R) 02/08/99 96-427 IXC ASC Telecom, Inc. 202-828-7429 7. d/b/a Alternatel 10/23/91 89-375 4/23/96 96-105 BOTH AT&T Communications of New England 617-574-3215 8. (F, R) 7/10/97 97-264 11/23/04 04/644 BOTH AT&T, Inc. (11-23-05) f/k/a SBC Long Distance 925-468-5906 9. (F, R) f/k/a Southwestern Bell Communications, Inc. d/b/a SBC Long Distance (Nov. 9, 2004) 4/26/05 05-90 IXC ATX Licensing, Inc. 312-445-1161 10. 2/13/06 05-411 IXC Acceris Management and Acquisition LLC 612-465-0260 11. 8/1/01 01-468 IXC Access One, Inc. 312-441-1000 12. 7/29/97 97-431 IXC Access Point, Inc 800-957-6468 13. 1/27/05 04-788 IXC Accessline Communications Corp. 206-621-3500 14. 5/23/00 00-344 7/30/99 99-102 IXC Adelphia Business Solutions Operations, Inc. 412-220-5048 15. 12/12/95 95-408 IXC Advanced Telecommunications Network Inc. 800-555-4286 16. 2/3/98 97-920 IXC Affinity Network, Inc. 800-772-4667 17. d/b/a Quntum Link 3/16/99 99-109 IXC Airnex Communications, Inc. 925-327-0400 18. 3/16/99 99-108 IXC Alliance Group Services, Inc. 800-756-2236 19. d/b/a Alliance Networks 10/22/02 02-571 IXC All-Star Acquisition Corporation 301-610-4300 20. 12/12/00 00-817 IXC Alltel Communications, Inc. 773-399-2500 21. G:\Approved Telecommunications.doc June 22, 2006 Page 2 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH f/k/a 360 Long Distance, Inc 3/19/03 03-19 4/30/03 03-190 BOTH (F) Alticomm, Inc. 781-989-4500 22. 05/01/02 02-167 IXC American Phone Services Corp. 770-569-1213 23. 8/13/96 96-350 IXF American Telecommunications Enterprise, Inc. 316-453-2323 24. 3/3/97 97-088 IXF American Telecommunications Systems, Inc. 800-961-4245 25. 3/18/98 97-977 IXC Americatel Corporation 888-801-0123 26. 4/9/96 95-459 IXC AmeriVision Communications, Inc. d/b/a LifeLine 405-755-8177 27. Communications 3/14/06 05-675 IXC (R) Amerivon, LLC 703-714-1313 28. 2/13/06 05-652 IXC (R) Asia Talk Telecom, Inc. d/b/a Hellocom, Inc. 800-719-1688 29. 5/27/97 97-244 IXC Association Administrators, Inc. 800-804-2100 30. 5/28/96 96-148 IXC ATCALL, Inc. 703-522-5252 31. 8/22/00 99-424 CLEC Atlantic Connections, LLC 407-740-8575 32. 11/17/97 96-373 3/19/03 02-96 BOTH(R) Atlas Communications, Ltd. 800-811-2497 33. 5/14/98 98-239 IXC Atlas Equity, Inc., 714-752-3500 34. d/b/a Performance Telecom 6/14/05 05-295 6/14/05 05-295 BOTH Axiom Technologies, Inc. 207-255-0679 35. (F, R, D)

11/06/01 01-727 IXC BAK Communications, LLC 36. 3/5/04 03-683 IXC BCE NEXXIA Corporation 514-870-8891 37. 11/23/05 05-666 11/23/05 05-666 BOTH Bee Line Cable, Inc. d/b/a Bee Line Cable 207-474-2727 38. (F,R) 6/25/02 02-205 IXC Bell Atlantic Communications, Inc. d/b/a Verizon 703-526-3044 39. Long Distance 3/13/97 97-070 9/13/05 05-397 BOTH BellSouth Long Distance, Inc. 770-352-3101 40. (R,D) 4/26/05 00-972 4/26/05 00-972 BOTH Biddeford Internet Corporation 207-286-8686 41. (F) 9/10/97 96-572 CLEC Birdsong Leasing, Inc. 800-287-0088 42. (F, R) d/b/a The Rental Zone 5/14/99 99-225 IXC Blackstone Communications Company 305-639-9590 43. 8/22/96 96-101 IXC Bottom Line Telecommunications 360-695-7000 44. 6/6/01 01-294 IXC BridgeCom International, Inc. 914-242-1100 45. 7/8/97 97-225 IXC Brittan Communications International Corporation 800-230-5712 46. 7/25/01 01-365 7/9/02 01-805 BOTH Broadview Networks, Inc. 212-400-1000 47. (F, R) 6/4/02 02-219 IXC Broadview NP Acquisition Corp. 212-400-1000 48. 12/19/00 99-362 12/19/00 99-362 BOTH (R) BT Communications Sales, LLC f/k/a Concert 571-203-6813 49. June 22, 2006 Page 3 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH Communications Sales, LLC 10/3/95 95-290 IXF Budget Call Long Distance, Inc. 716-777-8456 50. 3/22/99 99-146 IXF Buehner-Fry, Inc. - DirectDial, Inc. 541-385-5255 51. 3/22/99 99-147 IXF Buehner-Fry Inc. - Resort Operator Services 541-385-5255 52. 4/30/03 03-215 4/30/03 03-215 BOTH Bullseye Telecom, Inc. 248-784-2515 53. (F, R) 12/23/96 96-579 IXC Business Discount Plan 714-798-7000 54. 2/4/03 03-18 IXC Business Network Long Distance 800-421-9674 55. 12/30/04 04-778 IXC Business Productivity Solutions, Inc. 612-436-1632 56. 7/7/95 94-411 IXC Business Telecom, Inc. 919-510-7000 57. d/b/a BTI 6/17/03 03-164 IXC Buyers United, Inc. d/b/a United Carrier Networks 801-363-6177 58.

6/17/03 03-276 IXF C III Communications Operations 314-965-2020 59. 4/8/02 99-634 4/30/99 99-220 BOTH CCCME, Inc., d/b/a Connect! 60. (F, R) 7/05/00 00-141 7/05/00 00-141 BOTH CRC Communications of Maine, Inc. 207-657-9911 61. (F, R) 12/22/97 97-771 1/20/98 97-726 BOTH CTC Communications Corp. 781-466-1242 62. (F, R) 9/7/99 99-282 IXC Cable & Wireless Global Markets, Inc. 202-955-9600 63. 7/15/96 IXC Cash Back Rebates LD.Com, Inc 206-505-5500 64. f/k/a Common Concerns, Inc. 5/16/00 99-428 5/16/00 99-428 BOTH Choice One Communications of Maine, Inc. 716-530-2665 65. 12-13-01 01-712 (F, R) 10/16/02 02-476 IXC Choice Telco, Inc. 860-249-2000 66. 5/31/01 01-257 IXC Ciera Network Systems, Inc. 713-914-3850 67. 9/25/95 94-204 IXC Cincinnati Bell Any Distance, Inc. f/k/a Broadwing 513-397-1354 68. (name change 2004-23 dated 1/20/04) 2/7/95 91-047 IXC Coast International, Inc. 800-877-1118 69. 2/23/05 04-779 ixc Cognigen Networks, Inc. 425-329-2300 70. 9/9/03 03-480 IXC (R) Colorado Communications Network d/b/a 303-445-0015 71. Hospitality Communications 6/3/98 98-366 IXC Comcast Business Communications Holdings, LLC 215-981-8413 72. d/b/a Comcast Long Distance f/k/a Comcast Telecommunications, Inc. 12/9/96 96-441 IXC Comdata Telecommunications 615-370-7565 73. 11/23/05 05-495 11/23/05 05-495 BOTH (F) CommPartners, LLC 702-367-8647 74. 03/19/02 01-791 3/19/02 01-791 BOTH Commtel Communications, Inc. 207-377-9261 75. (R.D) June 22, 2006 Page 4 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 9/25/98 98-636 IXC Communications Billing, Inc. 440-356-2501 76. 3/17/99 98-398-F 3/17/99 98-398 BOTH (F) Communications Design, Inc. 207-929-9950 77. 5/22/03 03-298 5/22/03 03-298 BOTH (R) Communication Solutions Partners Inc. 413-592-4200 78. 1/21/04 03-927 IXC Communications Network Billing, Inc. 800-407-2047 79. 3/8/05 03-816 3/8/05 03-816 BOTH Computer Network Technology Corporation 206-338-6036 80. 7/31/01 00-590 IXC (F, R) Comtech 21, LLC 81. 1/09/00 00-1024 IXC Comtel Network, LLC 559-261-2830 82. 02-07/06 05-728 02-07-06 05-728 BOTH Comtel Telecom Assets L.P. 972-478-3349 83. (F,R) 4/26/02 02-186 IXC Con Edison Communications, LLC 202-324-5010 84. 5/27/97 97-127 IXC ConnectAmerica, Inc. 888-724-5523 85. 2/01/00 99-635 IXF Connect! LD, Inc. 501-401-7760 86. 6/17/03 03-240 IXC Consolidated Communications Operators Services, 217-234-9947 87. Inc. 01/26/01 00-866 IXC Consolidated Edison Communications, Inc. 212-324-5000 88. 8/18/95 94-458 IXC Consolidated Network, Inc. 217-235-4432 89. f/k/a Midwest Fibernet, Inc.) 1/02/03 02-769 IXC Convergia, Inc. 800-293-7778 90. 9/29/99 98-582 9/29/99 98-582 BOTH Conversent Communications of Maine LLC 401-831-2330 91. (F,R) 12/13/01 01-753 12/13/01 01-753 IXC Cornerstone Communications, LLC 92. 9/7/05 05-413 9/7/05 05-413 BOTH Cornerstone Telephone Company, LLC 518-272-1018 93. (F,R)

3/18/98 98-018 IXC Corporate Calling Services 888-299-6618 94. f/k/a Business Calling Plan, Inc. 8/13/96 96-294 IXC Corporate Services Telecom, Inc. 508-681-1222 95. 2/3/98 97-935 8/27/03 03-335 BOTH Covista, Inc. 201-812-1100 96. (F, R) f/n/a TotalTel, Inc. 5/17/00 00-353 IXC Custom Network Solutions, Inc. 212-245-2202 97. 11/06/01 01-197 IXC Custom Teleconnect, Inc 98. 10/24/00 00-823 IXC Cybertel, Communications Corp. 858-646-7410 99.

7/15/96 96-319 IXC DDD Calling Inc. 713-626-1661 100 4/21/99 98-785 CLEC (R) DPI Teleconnect, Inc. 813-596-7310 101 9/8/04 04-346 9/8/04 04-346 BOTH DSCI Corporation 781-861-4610 102 (F,R) 10/13/99 99-110 10/13/99 99-110 BOTH DSLNET Communications, LLC 203-773-1647 103 (F, R, D) June 22, 2006 Page 5 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 7/1/98 IXC Deltacom, Inc. f/ka ITC Deltacom, Inc. 256-382-2230 104 4/26/05 05-189 IXC Deltel, Inc. 949-444-0150 105 1/7/03 02-791 IXC Dialaround Enterprises, Inc. 718-358-5324 106 2/13/06 05-615 IXC Dial-Around Telecom, Inc. 817-329-7424 107 05/14/99 99-263 IXC Dial-Thru, Inc. (name change notice 1-21-02) 972 929-1920 108 f/n/a RDST, Inc. 8/1/01 01-487 IXC Direct One, LLC 714-384-7800 109 1/13/97 96-778 IXC Discount Network Services, Inc. 800-860-5080 110

5/2/02 02-146 IXC ECI Communications, Inc. 559-447-2100 111 2/29/00 2000-8 IXC EZ Tel Network Services, LLC 800-241-8067 112 12/22/98 98-476 IXC Eagle Telecom, Inc. 215-755-3135 113 8/15/96 96-242 IXC Eastern Telecommunications, Inc. 212-227-2510 114 8/24/98 98-531 IXC Electric Lightwave, Inc. 800-354-2780 115 5/2/06 06-196 IXC Embarq 503-778-5318 116 12/19/00 00-920 IXC Encompass Communications, LLC 903-323-4500 117 6/20/00 00-438 IXC Enhanced Communications Group, LLC 918-333-8833 118 12/17/02 02-749 IXC Entrix Telecom, Inc. 973-438-4827 119 10/11/95 93-195 IXC EqualNet Communications, Inc. 800-725-5575 120 9/12/02 02-204 IXC Ephone Telecom, Inc. 703-787-7000 121 5/4/99 99-213 IXC Erbia Network, Inc. 703-749-9745 122 7/6/05 05-172 7/6/05 05/172 BOTH Ernest Communications, Inc. 770-242-9069 123 (F) 8/02/00 00-578 IIXC ESS.COM,LLC 410-539-6070 124 3/10/98 97-875 IXC Euronet Communications Corporation 732-972-7300 125 10/11/00 00-577 IXF Evolution Networks North, Inc. 770-353-3500 126 3/4/03 03-110 IXC Exergy Group 305-822-3896 127

6/02/99 99-180 6/02/99 99-180 BOTH Fairpoint Communications Solutions Corp. 704-414-2524 128 (F, R) 1/17/95 95-303 IXC Federal TransTel, Inc. 205-985-4422 129 5/14/99 99-241 IXC FON Digital Network, Inc. 770-232-9200 130 3/8/05 04-870 3/8/05 04-870 BOTH (R) France Telecom Corporate Solution, LLC 703-925-4715 131 11-16-96 96-272 CLEC FreedomRing Communications 132 (F, R) d/b/a Bayring 4/5/00 00-162 IXC FreedomStarr Communications, Inc. 206-328-0808 133 d/b/a Planet Earth Communications and d/b/a iPhonebill.com 5/14/96 96-082 IXC Frontier Communications of American, Inc. f/k/a 407-740-8575 134 June 22, 2006 Page 6 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH Citizens Telecommunications Company d/b/a Citizens Communications Company (merger of Frontier and Citizens – July 8, 2003 – related issues in PUC docket 2003-268)

6/17/03 03-301 IXC Gates Communications, Inc. 206-748-7868 135 3/22/99 99-096 IXC GTC Telecom 714-549-7700 136 5/27/97 97-285 IXC GTI Telecom Inc. 800-364-9292 137 7/3/01 01-341 IXC Global Crest Communications 305 891-5668 138 d/b/a Dimensions Telecom IXC Global Crossing’s North American Networks 716-777-8249 139 f/k/a Frontier Communications, Int’l, Inc. 12/1/99 93-043 IXC Global Crossing’s Telecommunications, Inc. 248-647-6920 140 1/21/04 03-625 IXC Global Internetworking, Inc. 703-442-5500 141 11/20/01 98-173 CLEC Global NAPs, Inc. 617-689-3200 142 (F, R) 12/30/96 96-571 IXC Global Tel*Link Corporation 334-479-4500 143 7/22/03 03-421 7/22/03 03-421 BOTH Globcom Incorporated 770-232-9200 144 (F, R) 10/19/00 00-770 IXC Go Solo Technologies, Inc. 888-920-7656 145 02/05/02 01-869 IXC Gold Line Telemanagement, Inc. 146 9/18/02 02-435 9/18/02 02-435 BOTH Granite Telecommunications LLC 617-847-1500 147 (F, R) 11/15/96 96-484 IXC Group Long Distance, Inc. 305-771-9696 148

08/24/98 98-475 8/30/00 99-808-F BOTH (R) HJN Telecom, Inc. 770-291-2121 149 10/16/02 02-480 IXC Horizon Telecom, Inc. 321-268-3497 150

4/6/99 99-2 2/4/03 03-11 BOTH IDT America Corp. 973-438-4854 151 2/4/03 03-11 (F, R) 4/26/05 05-93 IXC ITI Inmate Telephone Inc. 814-949-3303 152 11/7/95 95-307 IXC Ideal Dial Corporation 303-534-0300 153 11/7/95 95-347 IXC Inacom Communications, Inc. 402-392-3900 154 11/7/95 IXC Incomnet Communications Corporation 714-251-8088 155 07/23/02 02-224 IXC Infone LLC f/k/a North by Northeastcom, LLC 503-643-9500 03/19/02 02-111 IXC Infonet Telecommunications Corp. 156 09/05/02 02-417 IXC Intelecall Communications, Inc. 157 7/29/97 97-318 IXC Intellicall Operator Services, Inc., 800-888-8355 158 d/b/a ILD June 22, 2006 Page 7 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 5/27/97 97-217 IXC International Telecom Ltd. 206-301-7019 159 10/16/02 02-544 IXC Inter-Tel Netsolutions 866-897-3283 160 12/21/99 99-454 CLEC Jato Operting Two Corp. 303-483-7221 (R, D) 161 6/20/00 00-457 IXC JirehCom, Inc. 877-745-8216 162

3/04/02 02-085 IXC Kiger Telephone & Telephoney, LLC 163

10/31/95 95-332 IXC LCI Telemanagement Corporation 614-798-6000 164 03/19/02 02-132 IXC` LCR Telecommunications, LLC 165 9/14/95 95-222 IXC LDC Telecommunications, Inc. 813-962-1939 166 d/b/a Omni Tel Com. & Unitel Com. 2/29/00 2000-50 IXC LDMI Telecommunications, Inc. d/b/a LDMI 313-873-5500 167 Telecommunications f/k/a Long Distance of Michigan 10-16-02 02-512 IXC Legacy Long Distance International , Inc. 800-577-5534 168 8/30/99 99-244 IXC Legends Communications 770-956-9900 169 8/24/99 99-013 11/28/00 98-1000 BOTH Level 3 Communications d/b/a Level 3 Finane, Inc. 720-888-1000 170 6/6/05 05-31 (F, R, D) 3/17/99 99-078-F 9/10/98 98-333 BOTH Lightship Telecom, LLC 603-883-4477 171 (F, R) 2/18/04 03-934 2/18/04 03-934 BOTH Lightyear Network Solutions, LLC 502-244-6666 172 9/8/04 04-462 (F,R) 9/30/97 97-401 9/30/97 97-401 BOTH Lincolnville Communications, Inc. 207-763-9900 173 (F, R) 12/31/02 02-724 12/31/02 02-724 BOTH Line 1 Communications LLC d/b/a Direct Line 770-578-5110 174 (F, R) Communications 12/12/00 00-757 IXC Local Telcom Holdings, LLC 212-546-9090 175 d/b/a Transpoint Communications 3/07/00 00-062 3/7/00 00-062 BOTH Log On America, Inc. 401-453-6100 176 (F, R) 12/12/00 00-912 IXC Long Distance Billing Services, Inc. 804-376-1046 177 10/28/96 96-401 IXC Long Distance Direct Holdings, Inc. 914-626-0765 178

9/22/04 04-531 9/22/04 04-531 BOTH (F) MCIMetro Access Transmission Services, LLC 212-547-3232 179 10/1/97 97-565 IXC-R MCI Communications Services, Inc. f/k/a MCI 914-312-2872 180 WorldCom Communications, Inc. (01-182) f/k/a WorldCom Technologies (97-565 10/1/97)) 91-300 IXC-F MCI Network Services, Inc. f/k/a MCI WorldCom 212-549-2602 181 June 22, 2006 Page 8 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH Network Services (01-180) f/k/a WorldComNetwork Services (91-300) 8/7/02 02-306 CLEC MCIMetro Access Transmission Services, LLC 212-519-4069 182 (FR) 6/17/03 03-80 IXC MGEN Services, Corp. 949-622-4444 183 09/05/01 01-570 ICX-R MVX.COM Communications, INC 184 8/24/98 98-541 IXC Main Street Telephone Company 888-820-9149 185 97-249 9/19/97 BOTH1 MaineCom Services 207-629-0199 186 (D) 4/28/97 96-665 IXC (R) Matrix Telecom d/b/a IECom 405-755-8177 187 11/22/00 00-272 11/22/00 00-272 BOTH Maxcess, Inc. 407-330-9762 188 (F, R) 7/28/99 99-056 IXC Maxxis Communications Corporation 770-399-9500 189 1/6/04 03-741 IXC McGraw Communications, Inc. 212-849-2223 190 2/11/97 7/24/01 01-237 BOTH (R) McLeod USA Telecommunications, Inc. 319-298-7000 191 1/27/04 03-726 09/18/01 01-592 CLEC (R) Metro Teleconnect Companies, Inc. 717-564-0603 192 01027/04 03-726 ( F) 4/6/98 98-116 CLEC Metracom Corp. d/b/a Solmon Corp. f/n/a Lightyear 617-557-3050 193 (F, R) Communications 02/07/01 00-689 2/7/01 00-689 BOTH Metropolitan Telecommunications of Maine 212-607-2000 194 (F, R) d/b/a MetTel 4/7/97 97-90 9/97 97-345 BOTH Mid-Maine TelPlus 207-992-9920 195 (F, R) d/b/a Mid-Maine Long Distance (IXC) and d/ba Mid-Maine Communications (CLEC) 2/15/00 99-734 IXF Miracle Communications, Inc. 305-937-2000 196 10/2/03 03-5634 IXC Motion Telecom, Inc. 303-784-5300 197

10/16/02 02-504 IXC NECC Telecom, Inc. 812-284-2819 198 2/3/98 97-921 IXC NOS Communications, Inc. 800-772-4667 199 12/22/97 97-922 IXC NOSVA Limited Partnership 800-772-4667 200 3/04/02 02-063 11/27/00 00-82 CLEC (R) NOW Communication, Inc. 617-743-5769 201 2/23/98 98-044 IXC NOVA Telecom, Inc. 215-351-0120 202 2/13/06 05-319 IXC(R) NSB LD f/k/a Network Service Billing Inc. 702-562-4301 203 08/21/01 01-521 8/21/01 01-521 BOTH (R) NTERA, Inc. 305-014-3364 204 12/13/01 01-735 3/26/02 01-862 BOTH NUI Telecom, Inc. 908-470-4726 205 (F, R)

1 “Wholesale Private Line By Contract Only”

June 22, 2006 Page 9 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 6/25/02 02-206 IXC NYNEX Long Distance Company dba Verizon 703-526-3044 206 Enterprise Solutions 5/9/00 00-324 IXC Natel, LLC 405-858-0003 207 10/2/03 03-532 IXC National Access Long Distance, Inc. 888-627-1484 208 11/06/01 01-717 IXC National Telephone Exchange, Inc. 209 8/30/05 05-481 IXC Navigator Telecommunications, LLC 501-954-4053 210 5/22/03 03-188 5/22/03 03-188 BOTH Neon Connect Inc. 508-621-1794 211 (F, R, D) 11/05/02 02-563 IXC Netel, Inc. 305-914-3333 212 3/17/00 99-837 IXC NetLojix Telecom, Inc. 805-884-6300 213 6/16/97 97-300 IXC Net One International, Inc. 888-426-4968 214 3/11/97 96-570 IXC Net-Tel Corporation 202-295-6600 215 02/08/99 98-818 IXF Network Billing Systems, LLC 973-256-2020 216 8/23/99 99-485 IXC Network Communications International Corporation 903-757-4455 217 2/23/00 99-886 IXC NETWORKIP,LLC 903-323-4500 218 5/28/98 98-070 IXC Network Operator Services, Inc. 903-323-4500 219 6/26/01 01-310 IXC Network US Inc d/b/a CA Affinity 262-513-3158 220 9/9/03 03-547 IXC (R) New Access Communications 612-256-0078 221 6/3/98 98-295 IXC New Century Telecom, Inc. 703-714-1322 222 Open 98-755 IXC New Concept Communications LLC 805-957-1423 223 6/06/00 99-694 6/6/00 99-694 BOTH New Edge Network, Inc., 360-693-9009 224 (F, R, D) d/b/a New Edge Networks 3/31/04 04-201 IXC New Horizons Communications, Corp. 781-290-4600 225 10/7/97 97-570 IXC Nextel Communications, Inc. 703-762-7400 226 11/13/02 02-562 IXC Nobeltel, LLC 760-405-0105 227 10/31/00 00-833 IXC Norstar Communications Inc. 800-390-8959 228 d/b/a Business Savings Plan, Inc. 6/24/96 96-231 IXC North American Telephone Network LLC 770-677-5779 229

10/08/02 02-305 IXC OCMC, Inc. D/B/A One Call comm, Opticom, 317-843-1300 230 Advantel, Livetel, Regiontel, supertel, 1-800-MAX- SAVE 10/9/98 98-754 IXC OPEX Communications, Inc. 847-545-9000 231 ? 93-200 & IXC OneStar Long Distance, Inc. 812-469-7790 232 7/9/02 01-469 11/1/04 04-394 IXC Operator Service Company 800-474-2474 233 7/10/01 01-390 IXC Optical Telephone Corporations 256-705-3522 234 113/98 97-665 IXC Oxford County Long Distance 235 5/03/00 00-310 5/3/00 00-310 BOTH Oxford Networks f/k/a Oxford County Telephone 207-336-9911 236 June 22, 2006 Page 10 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH (F, R) Service Co.

3/28/00 99-702 IXC PDS, Inc. 800- 550-0343 237 d/b/a Phone Debit Systems, Inc. 8/25/97 97-120 IXC PNG Telecommunications, Inc. 800-860-9495 238 7/19/00 00-549 IXC PT – 1 Counsel, Inc. [ 2001 name changed to 212-286-5000 239 WorldxChange-see WorldxChange Corp.] 10/5/98 98-728 IXC PaeTec Communications,Inc. 585-340-8232 240 9/29/97 97-554 IXC Paradigm Communications Corp. 310-899-3400 241 d/b/a Global Network Comm 11/2/04 04-733 IXC Phone1, Inc. 305-371-3300 242 11/23/05 05-363 11/23/05 05-363 BOTH Pine Tree Cablevision Associates, LP 243 (F, R) 5/27/98 98-070 5/31/00 96-540 BOTH (R) Preferred Carrier Services, Inc. 972-503-3388 244 d/b/a Phones for All 01-718 12/13/01 CLEC Premiere Network Services, Inc. 972-228-6810 245 (R, D) 3/18/98 98-069 IXC Pride America, Inc. 941-924-5096 246 6/7/01 2000-670 IXF Premiere Network Services, Inc. 972-228-6810 247 3/17/97 96-485 IXC Primus Telecommunications, Inc. 703-848-4626 248 1/21/97 96-458 IXC Professional Communications Management 304-379-2238 249 Services, Inc. d/b/a ProCom 12/12/00 00-421 IXC Public Communications Services, Inc. 310-473-6222 250

12/12/95 95-410 IXC QAI, Inc., 612-222-1501 251 d/b/a/ Long Distance Billing 3/6/00 97-514 IXC Quintelco, Inc. 800-532-3940 252 12/18/95 95-470 IXF Qwest Communications Corp. 303-896-0032 253 8/18/97 97-030 IXF Qwest Interprise America, Inc. 303-896-0032 254 f/k/a US West Interprise America, Inc. d/b/a !nterprise American I 255 1/22/03 01-744 IXC QX Telecom LLC 212-689-9094 256

10/2/03 03-636 IXC R2C Communications, Inc. 913-341-8397 257 12/12/00 00-819 12/12/00 00-819 BOTH (R) RCN Telecommunications Services, Inc. 800-443-4253 258 09/05/02 02-482 8/19/99-01/23/02 02-482 BOTH (R) RNK, Inc. d/b/a/ RNK Telecom 781-613-6103 259 09/05/02 02-456 IXC Radiant Telecom, Inc. 305-914-3434 260 6/5/01 01-290 IXC Reduced Rate Long Distance, LLC 800-435-9217 261 June 22, 2006 Page 11 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 10/15/97 97-525 05/18/99 98-1003 BOTH (D) Revolution Networks, LLC 207-948-2800 262 f/k/a Community Service Long Distance

263 1/27/04 03-702 1/27/04 03-702 BOTH (D) SegTEL, Inc. 888-890-1744 264 11/22/00 00-443 11/22/00 00-443 BOTH (R) ServiSense.com, Inc. 617-848-8106 265 5/9/00 00-339 IXC Siesta Telecom, Inc. 941-342-1712 266 2/15/00 99-511 IXC Single Billing Services 800-777-2582 267 d/b/a Asian American 3/7/00 99-568 CLEC Skowhegan Online, Inc. 207-474-1291 268 (R, D) 2/19/97 97-007 IXF SmarTel Communications, Inc. 617-338-6000 269 5/14/98 98-009 IXC Smartstop, Inc. 503-672-5160 270 9/14/95 95-199 IXC SNET America, Inc. 203-287-4622 271 12/13/01 01-817 IXC Sonix4U, Inc. 272 5/4/99 99-228 IXC Southnet Telecomm Services, Inc. 770-937-9550 273 12/8/98 98-826 IXC Special Accounts Billing Group, Inc. 616-381-8844 274 9/8/04 04-311 9/8/04 04-311 BOTH Spectrotel, Inc. 732-345-7896 275 (F,R) 1/19/90 89-223 IXF Sprint Communications Company L.P. f/k/a Sprint 913-433-1396 276 Telecommunications, Inc. 8/22/96 96-146 IXC Starlink Communications, LLC 202-622-7100 277 2/10/98 97-929 IXC Startec Global Communications 301-365-8959 278 6/21/99 98-985 IXC Startec Global Licensing Company 301-767-1472 279 2/15/00 99-738 IXC Sterling Time Company 770-232-9200 280 4/7/98 98-121 IXC Stormtel, Inc 888-800-7275 281 . f/k/a Z-Tel, Inc.

5/17/00 00-356 IXC TRC Telecom, Inc. 830-257-7342 282 3/9/99 99-047 IXC TRI-M Communications, Inc. 415-392-7900 283 d/b/a TMC Communications. 6/7/96 96-302 IXC TTI National (MCI) 800-624-0533 284 3/2/99 99-073 IXC T-NETIX Telecommunications Services, Inc. 972-241-1535 285 (F/K/A Gateway Technologies, Inc.) 10/3/95 97-273 IXC Talk America, Inc. f/k/a Talk.com Holding 215-862-1500 286 Corporation d/b/a Phone Company of New Hope 11/06/01 01-677 IXC Talknow, Inc. 287 7/11/00 00-509 IXC TDS Long Distance Corporation 608-664-4168 288 06/13/00 00-385 IXC TeleCents Communications, Inc. 248-366-7777 289 June 22, 2006 Page 12 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 07/23/02 02-242 IXC Telecom Management, Inc. d/b/a Pioneer 207-885-5544 290 Telephone 5/28/98 98-254 IXC Telecom Resources 214-760-9700 291 3/16/99 99-131 IXC Telecommunications Resources,Inc ( “TRI”) 816-792-0033 292 1/23/95 95-498 IXC Teleconnect Long Distance Svs. and Systems Co., 800-397-1771 293 Inc. 6/17/03 03-72 IXF Teleglobe USA, LLC 703-755-2389 294 3/18/98 98-078 IXC TeleHub Network Services Corporation 847-599-1000 295 09/05/02 02-436 IXC Telenational Communicatioins, Inc. 402-392-1110 296 11/27/00 00-695 11/27/00 00-695 BOTH Telera Communications, Inc. 297 (F, R) 10/22/02 02-592 IXC Telezon, Inc. 813-933-5328 298 11/27/00 00-821 11/27/00 00-821 BOTH Telicor, Inc. 299 (F, R) 6/25/02 02-246 IXC Tellis, LLC 866-835-5477 300 11/05/02 02-608 08/30/05 05-440 BOTH Telrite Corporation 678-202-0742 301 (F,R) 11/15/96 96-528 IXC Telscape USA, Inc. 713-968-0968 302 2/11/03 02-792 2/11/03 02-792 BOTH (F) Time Warner Cable Information Services Maine 203-328-4098 303 LLC 2/23/00 99-936 IXC Ton Services, Inc. 801-334-4500 304 6/6/01 01-320 IXC Total Call International, Inc. 678-775-2244 305 11/14/95 94-420 IXC Totaltel USA Communications, Inc. 201-812-1100 306 8/18/95 95-197 IXC Touch 1 Communications, Inc. 334-368-8600 307 1/28/97 96-659 IXC Touch 1 Long Distance, Inc. 800-286-8241 308 11/05/02 02-536 11/23/05 05-572 BOTH (R) Touchtone Communications, Inc. 973-739-9300 309 9/7/99 99-505 IXC Transnet Connect, Inc. 813-254-8726 310 1/02/03 02-765 IXC Transcom Communications d/b/a Comm Port 770-232-9200 311 Communications 2/15/00 99-622 IXC Trans National Communication International 617-369-1063 312 2/8/00 99-848 01/05/01 00-925 BOTH (R) Trinsic Communications f/k/a Z-Tel 813-273-6261 313 Communications, Inc. 5/2/06 06-215 IXC Triton Global Business Services, Inc. D/B/A 403-259-7582 314 Hospitality Services

6/17/03 03-164 4/26/05 05-156 BOTH (R) UCN, Inc. fka Buyers United Inc dba United Carrier 801-576-5021 315 Networks 3/21/00 00-150 IXF UI Long Distance d/b/a Northland Long Distance 207-642-7330 316 12/17/02 02-727 3/22/99 98-515 IXC US Network Services, Inc. 206-505-5500 317 June 22, 2006 Page 13 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 12/8/97 97-485 IXC US South Communications, Inc. 770-563-8808 318 d/b/a US South and d/b/a INCOMM 04/21/06 06-175 04/21/06 06-175 BOTH (R) USA Data Inc. 207-752-7083 319 05/23/06 06-272 05/23/06 06-272 (F) 12/19/00 00-928 IXC USA Digital Communiications, Inc. 888-872-3787 320 7/29/97 97-408 IXC USA Tele Corp., Inc. 800-257-5159 321 6/21/99 98-676 IXC USBG, Inc. 888-406-8724 322 6/22/04 04-329 IXC Unicap, Inc., d/b/a Unitel Long Distance 207-948-3900 323 3/8/05 01-355 12/18/01 01-355 CLEC (R) United Systems Access Telecom, Inc. (United 877-872-2800 324 02-232 – F Systems Access, Inc. f/k/a United Systems Access 888-872-9400 04-706 Telecom, Inc.) d/b/a USA Telephone; and d/b/a 207-467-8358 USA LD; and d/b/a Homefield Telecom 11/27/00 00-128 11/27/00 00-128 BOTH Universal Access, Inc. 888-747-5072 325 (F, R) 1/23/96 95-507 IXC Ustel, Inc. 702-247-7400 326

7/1/02 02-260&261 IXC Verizon Select Services, Inc. 972-718-7858 327 10/12/05 05-199 IXC VoiceCom Telecommunications 770-663-5051 328

3/21/00 00-152 IXC W2COM International, LLC 937-415-1100 329 1604 03-700 IXC WDT World Discount Telecommunications 214-890-7700 330 3/17/00 00-100 IXC WebNet Communications, Inc. 877-550-3006 331 5/15/01 01-205 IXC West End Communications, Inc. 954-456-1766 332 9/12/02 02-388 IXC Wholesale Carrier Services, Inc. 561-852-3400 333 2/16/99 99-070 IXC WilTel Communications, LLC f/k/a Williams 918-547-4018 334 Communications, Inc. 5/16/06 05-761 IXC Windstream Communications, Inc. 501-905-8271 335 3/04/02 02-033 IXC Winstar Communications, LLC 888-961-8800 336 3/5/96 94-161 IXC Working Assets Funding Service, Inc. 415-788-0981 337 (d/b/a Working Assets Long Distance) 7/10/01 01-419 IXC World Communications Satellite Systems, Inc. 866-647-2752 338

03/19/02 02-104 IXC X2Comm, Inc. 339 7/6/05 05-336 7/6/05 05-336 BOTH Xatel, LLC 207-286-9477 340 (F) 9/22/04 04-619 9/22/04 04-619 BOTH (R) XO Communications, Inc. 610-288-5618 341 6/24/96 IXC Xtracom, Inc. 800-728-7283 342

4/2/03 03-198 IXC YAK Communications (America) Inc. 416-279-1364 343 June 22, 2006 Page 14 IXC AUTHORITY CLEC AUTHORITY CLEC Certified Docket Certified Date Docket IXC OR COMPANY Phone Numbers # Date # # BOTH 11/15/96 96-405 IXF Zenex Long Distance, Inc. 405-749-9999 344 9/13/00 00-710 IXF Zone Telecom, Inc. 617-876-3002 345

F- Facilities-Based R-Resold D-Dedicated