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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-464 A New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-465 A Waterbury CT WTRBCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-465 0 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-465 1 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-465 2 Waterbury CT   5562 METROPCS, INC. 920   2005-05-27   
203-465 3 Waterbury CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-09-10   
203-465 4 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-465 5 Waterbury CT   5562 METROPCS, INC. 920   2011-02-17   
203-465 6 Waterbury CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-465 7 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-465 8 Waterbury CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2006-11-25   
203-465 9 Waterbury CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-12-12   
203-466 A New Haven CT EHVNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 0 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 1 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 2 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 3 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 4 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 5 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 6 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 7 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-466 8 New Haven CT   829J PAETEC ITEL, LLC 920   2010-06-01   
203-466 9 New Haven CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-06-21   
203-467 A New Haven CT EHVNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-468 A New Haven CT EHVNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-469 A New Haven CT EHVNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-470 A Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-477 A New Haven CT HRFRCT0380Z  6630 USA MOBILITY WIRELESS, INC. 920      
203-479 A New Haven CT WSHNCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-479 0 New Haven CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-04-19   
203-479 1 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-479 2 New Haven CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2006-03-30   
203-479 3 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-479 4 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-479 5 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-479 6 New Haven CT   829J PAETEC ITEL, LLC 920   2006-06-22   
203-479 7 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-479 8 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-479 9 New Haven CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-04-19   
203-480 A Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-480 0 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-480 1 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-04-03   
203-480 2 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-04-07   
203-480 3 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-04-16   
203-480 4 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-04-23   
203-480 5 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-05-01   
203-480 6 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-05-01   
203-480 7 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2003-05-05   
203-480 8 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-480 9 Fairfield CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-481 A Branford CT BRFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-482 A Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 0 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 1 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 2 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 3 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 4 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 5 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 6 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 7 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 8 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2004-08-12   
203-482 9 Danbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-483 A Branford CT BRFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 A Branford CT NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 0 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 1 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 2 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 3 Branford CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-04-14   
203-484 4 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 5 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 6 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 7 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 8 Branford CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
203-484 9 Branford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-485 A Greenwich CT GNWCCTGNX5Y  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 0 Greenwich CT   612K CSC VOICE, LLC 132      
203-485 1 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 2 Greenwich CT   350E YMAX COMMUNICATIONS CORP. - CT 132   2011-03-07   
203-485 3 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 4 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 5 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 6 Greenwich CT   350E YMAX COMMUNICATIONS CORP. - CT 132   2011-03-07   
203-485 7 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 8 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 9 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-486 A Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 0 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 1 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 2 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 3 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 4 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 5 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 6 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 7 Woodbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 8 Woodbury CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-03-07   
203-486 9 Woodbury CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   
203-487 A Stamford CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-487 0 Stamford CT   829J PAETEC ITEL, LLC 920   2001-05-17   
203-487 1 Stamford CT   829J PAETEC ITEL, LLC 920   2002-09-10   
203-487 2 Stamford CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2025-01-04   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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