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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
203-482 1 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 2 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 3 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 4 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 5 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 6 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 7 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-482 8 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2004-08-12   
203-482 9 Danbury CT MDTWCTNIBMD  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 NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 1 Branford CT NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 2 Branford CT NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 3 Branford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-04-14   
203-484 4 Branford CT NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 5 Branford CT NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 6 Branford CT NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 7 Branford CT NBFRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-484 8 Branford CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
203-484 9 Branford CT NBFRCT00RS0  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 GNWCCTGNDSN  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 2 Greenwich CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2011-03-07   
203-485 3 Greenwich CT GNWCCTGNDSN  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 4 Greenwich CT GNWCCTGNDSN  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 5 Greenwich CT GNWCCTGNDSN  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 6 Greenwich CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2011-03-07   
203-485 7 Greenwich CT GNWCCTGNDSN  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 8 Greenwich CT GNWCCTGNDSN  4950 CABLEVISION LIGHTPATH, INC. - CT 132      
203-485 9 Greenwich CT GNWCCTGNDSN  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 SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 1 Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 2 Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 3 Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 4 Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 5 Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 6 Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 7 Woodbury CT SOBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-486 8 Woodbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-03-07   
203-486 9 Woodbury CT HRFRCT0380Z  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 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2025-01-04   
203-487 3 Stamford CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-487 4 Stamford CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-487 5 Stamford CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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