SPID - OCN Reference Contains: Legal Names State OCN ICSC EC CCNA/IAC ACNA CIC FGD Code

SPID - OCN Reference Contains: Legal Names State OCN ICSC EC CCNA/IAC ACNA CIC FGD Code Legacy Service Territory: Pages 2-4 Acquired West Virginia Service Territory Page 5 Frontier 13 Service Territory Page 6 Connecticut Service Territory Page 7 Disclaimer: This documentation is for information purposes only and does not obligate Frontier to provide services in the manner herein described. Frontier reserves the right as its sole option to modify or revise the information in this document at any time without prior notice. In no event shall Frontier or its agents, employees, directors, officers, representatives or suppliers be liable under contract, warranty, tort (including but not limited to negligence of Frontier), or any other legal theory, for any damages arising from or relating to this document or its contents, even if advised of the possibility of such damages. 2018 Frontier Communications Corporation All Rights Reserved.

Legacy Service Territory AL Frontier Communications of Alabama, LLC 0306 MR01 CZUC CZX FLR 0694 0121 AL Frontier Communications of Lamar County, LLC 0301 IS14 CZUC CZX FLR 0694 0121 AL Frontier Communications of the South, LLC (overall OCN 0318) 4464 SL01 CZUC CZX FLR 0694 0121 AL Frontier Communications of America, Inc - CLEC 039E FC11 CZUC CZX FLR 0694 N/A AZ Citizens Utilities Rural Company, Inc. dba Frontier Telecommunictions 2172 CU03 CZUC CZX FLX 0096 0121 AZ Citizens Telecommunications Company of the White Mountains, Inc. - East 4426 CZ05 CZUC CZX FLX 0096 0121 AZ Navajo Communications Company, Inc. - AZ (overall OCN 2275) 4449 CZ05 CZUC CZX FLX 0096 0121 AZ Frontier Communications of America, Inc - CLEC 096F FC11 CZUC CZX FLR 0694 N/A AZ Citizens Mohave Cellular Company - CLEC (Kingman) 6831 FC11 CZUC CZX FLR 0694 N/A CA Citizens Telecommunications Company of California, Inc. - North 2308 CZ02 CZUC CZX FLX 0096 0121 CA Citizens Telecommunications Company of the Golden State - Needles CO 3402 CZ05 CZUC CZX FLX 0096 0121 CA Citizens Telecommunications Company of Tuolumne dba Frontier Telecom 2342 CZ05 CZUC CZX FLX 0096 0121 CA Global Valley Networks, Inc. dba Frontier Communications Global Valley 2315 IW29 CZUC CZX FLX 0096 0121 CA Frontier Communications of America, Inc - CLEC 006E FC11 CZUC CZX FLR 0694 2473 FL Frontier Communications of the South, LLC (overall OCN 0318) 4465 SL01 CZUC CZX FLR 0694 0121 FL Frontier Communications of America, Inc - CLEC 2476 FC11 CZUC CZX FLR 0694 N/A GA Frontier Communications of Fairmount, LLC 0362 IS36 CZUC CZX FLR 0694 0121 GA Frontier Communications of Georgia, LLC 0387 ST03 CZUC CZX FLR 0694 0121 GA Frontier Communications of America, Inc - CLEC 253E FC11 CZUC CZX FLR 0694 N/A IA Frontier Communications of Iowa, LLC 1127 VI20 CZUC CZX FLR 0694 0121 IA Frontier Communications of America, Inc - CLEC 198E FC11 CZUC CZX FLR 0694 N/A ID Citizens Telecommunications Company of Idaho dba Frontier Telecomm 4427 CZ05 CZUC CZX FLX 0096 0121 ID Frontier Communications of America, Inc - CLEC 294E FC11 CZUC CZX FLR 0694 N/A IL Citizens Telecommunications Company of Illinois dba Frontier Telecomm 1183 CZ05 CZUC CZX FLX 0096 0121 IL Frontier Communications of Depue, Inc. dba Frontier Telecommunications 0998 IB79 CZUC CZX FLR 0694 0121 IL Frontier Communications of Illinois, Inc. dba Frontier Telecommunications 1038 IB94 CZUC CZX FLR 0694 0121 IL Frontier Communications of Lakeside, Inc. dba Frontier Telecommunications 1011 IB97 CZUC CZX FLR 0694 0121 IL Frontier Communications - Midland, Inc. dba Frontier Telecommunications 1055 IA04 CZUC CZX FLR 0694 0121 IL Frontier Communications of Mt. Pulaski, Inc.dba Frontier Telecomm 1061 IA07 CZUC CZX FLR 0694 0121 IL Frontier Communications of Orion, Inc.dba Frontier Telecommunications 1067 IA13 CZUC CZX FLR 0694 0121 IL Frontier Communications - Prairie, Inc.dba Frontier Telecommunications 1073 IA14 CZUC CZX FLR 0694 0121 IL Frontier Communications - Schuyler, Inc.dba Frontier Telecommunications 1079 IA16 CZUC CZX FLR 0694 0121 IL Frontier Communications of America, Inc - CLEC 807E FC11 CZUC CZX FLR 0694 N/A IN Frontier Communications of Indiana LLC 0750 ID35 CZUC CZX FLR 0694 0121 IN Frontier Communications of Thorntown LLC 0828 ID60 CZUC CZX FLR 0694 0121 2018 Frontier Communications Corporation All Rights Reserved. 2 Revised: 06/30/2015

Legacy Service Territory IN Frontier Communications of America, Inc - CLEC 474E FC11 CZUC CZX FLR 0694 2473 MI Frontier Communications of Michigan, Inc (overall OCN 0682) 4417 CI75 CZUC CZX FLR 0694 0121 MI Frontier Communications of America, Inc - CLEC 475E FC11 CZUC CZX FLR 0694 N/A MN Citizens Telecommunications Company of Minnesota, LLC - Lakes 1123 CZ05 CZUC CZX FLX 0096 0121 MN Frontier Communications of Minnesota, Inc. 1367 VI10 CZUC CZX FLR 0694 0121 MN Frontier Communications of America, Inc - CLEC 2474 FC11 CZUC CZX FLR 0694 2473 MS Frontier Communications of Mississippi LLC 0460 IS88 CZUC CZX FLR 0694 0121 MS Frontier Communications of America, Inc - CLEC 544E FC11 CZUC CZX FLR 0694 N/A MT Citizens Telecommunications Company of Montana dba Frontier Telecomm 4322 CZ05 CZUC CZX FLX 0096 0121 MT Frontier Communications of America, Inc - CLEC 291E FC11 CZUC CZX FLR 0694 N/A NC Frontier Communications of America, Inc - CLEC 440G FC11 CZUC CZX FLR 0694 2473 NE Citizens Telecommunications Company of Nebraska dba Frontier Telecomm 1128 CZ05 CZUC CZX FLX 0096 0121 NE Frontier Communications of America, Inc - CLEC 674E FC11 CZUC CZX FLR 0694 N/A NM Navajo Communications Company, Inc. - NM dba Frontier Telecom (overall OCN 2 4450 CZ05 CZUC CZX FLX 0096 0121 NM Frontier Communications of America, Inc - CLEC 901E FC11 CZUC CZX FLR 0694 N/A NV Citizens Telecommunications Company of Nevada dba Frontier Telecomm 2354 CZ05 CZUC CZX FLX 0096 0121 NV Frontier Communications of America, Inc - CLEC 254E FC11 CZUC CZX FLR 0694 N/A NY Citizens Telecommunications Company of New York, Inc. 0096 CZ05 CZUC CZX FLX 0096 0121 NY Ogden Telephone Company dba Frontier Telecommunications 0110 OT01 OGEN CZX FLR 0694 0121 NY Frontier Communications of AuSable Valley, Inc. - NY North 0072 AU01 CZUC CZX FLR 0694 0121 NY Frontier Communications of New York, Inc.- NY South Monroe 0100 HT05 CZUC CZX FLR 0694 0121 NY Frontier Telephone of Rochester, Inc. - NY Rochester 0121 RT01 CZUC CZX FLR 0694 0121 NY Frontier Communications of Seneca-Gorham, Inc. - NY West & Central 0122 SG01 CZUC CZX FLR 0694 0121 NY Frontier Communications of Sylvan Lake, Inc. - NY South Monroe 0128 SL02 CZUC CZX FLR 0694 0121 NY Frontier Communications of America, Inc - CLEC 2475 FC11 CZUC CZX FLR 0694 2473 OH Frontier Communications of Michigan, Inc - OH (Overall OCN 0682) 4418 IB37 CZUC CZX FLR 0694 0121 OR Citizens Telecommunications Company of Oregon dba Frontier Telecomm 3401 CZ05 CZUC CZX FLX 0096 0121 OR Frontier Communications of America, Inc - CLEC 432E FC11 CZUC CZX FLR 0694 N/A PA Citizens Telecommunications Company of New York, Inc. 0096 CZ05 CZUC CZX FLX 0096 0121 PA Frontier Communications of Breezewood, LLC 0149 BT02 CZUC CZX FLR 0694 0121 PA Frontier Communications of Canton, LLC 0152 CA03 CZUC CZX FLR 0694 0121 PA Commonwealth Telephone Company LLC dba Frontier Telecommunications 0161 CT99 CMWL CZX FBA 5326 0161 PA Frontier Communications of Lakewood, LLC 0178 LR01 CZUC CZX FLR 0694 0121 PA Frontier Communications of Oswayo River, LLC 0194 OR03 CZUC CZX FLR 0694 0121 PA Frontier Communications of Pennsylvania, LLC 0168 EN01 CZUC CZX FLR 0694 0121 2018 Frontier Communications Corporation All Rights Reserved. 3 Revised: 06/30/2015

Legacy Service Territory PA Frontier Communications of America, Inc - CLEC 3324 FC11 CZUC CZX FLR 0694 N/A PA CTSI, LLC - Harrisburg, Wilkes Barre, Plains 7513 CS35 CWTS CQV CQV 5342 7513 TN Citizens Telecommunications Company of Tennessee dba Frontier Telecomm 4336 CZ05 CZUC CZX FLX 0096 0121 TN Citizens Telecommunications of the Volunteer State, LLC dba Frontier Telecomm 0577 CZ05 CZUC CZX FLX 0096 0121 TN Frontier Communications of America, Inc - CLEC 866C FC11 CZUC CZX FLR 0694 N/A UT Citizens Telecommunications Company of Utah dba Frontier Telecomm 4429 CZ05 CZUC CZX FLX 0096 0121 UT Navajo Communications Company, Inc. - UT dba Frontier Telecom (overall OCN 2 4451 CZ05 CZUC CZX FLX 0096 0121 UT Frontier Communications of America, Inc - CLEC 817E FC11 CZUC CZX FLR 0694 N/A VA Frontier Communications of Virginia, Inc 127G FV01 FV01 FVX FLX 0096 0121 WA Frontier Communications Northwest, Inc (Overall OCN 4972) 7993 FC11 CZUC CZX FLR 0694 2473 WI Rhinelander Telecommunications, LLC - Crandon dba Frontier Telecomm 0870 CI38 CZUC CZX FLR 0694 0121 WI Frontier Communications of Mondovi, LLC 0912 CI24 CZUC CZX FLR 0694 0121 WI Frontier Communications - St. Croix, LLC 0944 CI42 CZUC CZX FLR 0694 0121 WI Frontier Communications of Viroqua, LLC 0967 CI63 CZUC CZX FLR 0694 0121 WI Frontier Communications of Wisconsin, LLC 0964 CI60 CZUC CZX FLR 0694 0121 WI Frontier Communications of America, Inc - CLEC 593E FC11 CZUC CZX FLR 0694 N/A WV Citizens Telecommunications of West Virginia dba Frontier Telecomm 0270 CZ05 CZUC CZX FLX 0096 0121 WV Frontier Communications of America, Inc - CLEC 007E FC11 CZUC CZX FLR 0694 N/A 2018 Frontier Communications Corporation All Rights Reserved. 4 Revised: 06/30/2015

Acquired West Virginia Service Territory WV Frontier West Virginia, Inc - LERG OCN 9214, NECA OCN 5050 9214 FV01 FVNC FVX FLX 0096 0121 2018 Frontier Communications Corporation All Rights Reserved. 5 Revised: 10/16/2014

Frontier 13 Service Territory AZ Frontier Communications of the Southwest, Inc 4419 FV04 FTNC FFT CQV 5342 0121 CA Frontier Communications West Coast, Inc 2344 FV02 FTNC FFT CQV 5342 0121 CA Frontier Communications of the Southwest, Inc 863F FV04 FTNC FFT CQV 5342 0121 ID Frontier Communications Northwest, Inc 4321 FV03 FTNC FFT CQV 5342 0121 IL Frontier Communications of the Carolinas, Inc 1000 FV05 FTNC FFT CQV 5342 0121 IL Frontier North, Inc 1015 FV06 FTNC FFT CQV 5342 0121 IL Frontier North, Inc 1036 FV06 FTNC FFT CQV 5342 0121 IN Frontier North, Inc 0772 FV06 FTNC FFT CQV 5342 0121 IN Frontier North, Inc 0779 FV06 FTNC FFT CQV 5342 0121 IN Frontier Midstates, Inc 0831 FV07 FTNC FFT CQV 5342 0121 MI Frontier Midstates, Inc 0681 FV07 FTNC FFT CQV 5342 0121 MI Frontier North, Inc 0695 FV06 FTNC FFT CQV 5342 0121 NC Frontier Communications of the Carolinas, Inc 4334 FV05 FTNC FFT CQV 5342 0121 NC Frontier Communications of the Carolinas, Inc 0509 FV05 FTNC FFT CQV 5342 0121 NV Frontier Communications of the Southwest, Inc 4421 FV04 FTNC FFT CQV 5342 0121 OH Frontier North, Inc 0615 FV06 FTNC FFT CQV 5342 0121 OR Frontier Communications Northwest, Inc 4323 FV03 FTNC FFT CQV 5342 0121 SC Frontier Communications of the Carolinas, Inc 0526 FV05 FTNC FFT CQV 5342 0121 SC Frontier Communications of the Carolinas, Inc 4335 FV05 FTNC FFT CQV 5342 0121 WA Frontier Communications Northwest, Inc 4324 FV03 FTNC FFT CQV 5342 0121 WA Frontier Communications Northwest, Inc 4423 FV03 FTNC FFT CQV 5342 0121 WI Frontier North, Inc 0886 FV06 FTNC FFT CQV 5342 0121 *CA Frontier California, Inc 2319 GT10 FTNC FFT CQV 5342 0121 *CA Frontier California, Inc 4420 GT11 FTNC FFT CQV 5342 0121 *CA Frontier California, Inc - CLEC 7534 GT10 FTNC FFT CQV 5342 N/A *FL Frontier Florida LLC d/b/a Frontier Communications of Florida 0328 GT10 FTNC FFT CQV 5342 0121 *TX Frontier Southwest Incorporated d/b/a Frontier Communications of Texas 2154 GT11 FTNC FFT CQV 5342 0121 *TX Frontier Southwest Incorporated d/b/a Frontier Communications of Texas 4344 GT10 FTNC FFT CQV 5342 0121 *TX Frontier Southwest Incorporated d/b/a Frontier Communications of Texas - CLEC 0701 GT10 FTNC FFT CQV 5342 0121 * CTF Properties Acquired in 2016 2018 Frontier Communications Corporation All Rights Reserved. 6 Revised: 08/25/2016

Connecticut Service Territory CT Southern New England Telephone Company 9147 SN01 SN SNG SNG 0763 5200 2018 Frontier Communications Corporation All Rights Reserved. 7 Revised: 10/16/2014