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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
203-952 5 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-952 6 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-952 7 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-952 8 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-952 9 Norwalk CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-953 A Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-953 0 Bridgeport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-11-03   
203-953 1 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-953 2 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-07-22   
203-953 3 Bridgeport CT   829J PAETEC ITEL, LLC 920   2005-12-08   
203-953 4 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-07-22   
203-953 5 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2006-02-04   
203-953 6 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-953 7 Bridgeport CT HRFRCT03SMD  939H COMMIO, LLC 920   2022-09-12   
203-953 8 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-07-22   
203-953 9 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-954 A Ansonia-Derby CT   829J PAETEC ITEL, LLC 920      
203-954 0 Ansonia-Derby CT   829J PAETEC ITEL, LLC 920      
203-954 1 Ansonia-Derby CT   829J PAETEC ITEL, LLC 920      
203-954 2 Ansonia-Derby CT   829J PAETEC ITEL, LLC 920      
203-954 3 Ansonia-Derby CT   829J PAETEC ITEL, LLC 920      
203-954 4 Ansonia-Derby CT   624H ONVOY SPECTRUM, LLC 920   2025-10-27   
203-954 5 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-11-01   
203-954 6 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2006-06-14   
203-954 7 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-04-26   
203-954 8 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-09-09   
203-954 9 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2002-12-16   
203-955 A Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-955 0 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-08-02   
203-955 1 Fairfield CT   612K CSC VOICE, LLC 920   2011-04-22   
203-955 2 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-08-02   
203-955 3 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-08-02   
203-955 4 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-08-02   
203-955 5 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-04-12   
203-955 6 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-04-12   
203-955 7 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-04-12   
203-955 8 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-04-12   
203-955 9 Fairfield CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-04-12   
203-956 A Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 0 Norwalk CT   612K CSC VOICE, LLC 920   2006-06-19   
203-956 1 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 2 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 3 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 4 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 5 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 6 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 7 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 8 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-956 9 Norwalk CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-957 A Norwalk CT   612K CSC VOICE, LLC 920      
203-957 0 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-05-01   
203-957 1 Norwalk CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2012-09-22   
203-957 2 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2012-02-01   
203-957 3 Norwalk CT   612K CSC VOICE, LLC 920   2011-07-22   
203-957 4 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-11-08   
203-957 5 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-05-01   
203-957 6 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-12-30   
203-957 7 Norwalk CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2013-09-30   
203-957 8 Norwalk CT   612K CSC VOICE, LLC 920   2013-04-05   
203-957 9 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-12-30   
203-960 A Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-960 0 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 1 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 2 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 3 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 4 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 5 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 6 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 7 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 8 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-960 9 Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2008-11-20   
203-961 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 0 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 1 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 2 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 3 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2015-02-01   
203-961 4 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 5 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 6 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 7 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 8 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-961 9 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-962 A Stamford CT SMFRCT02DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-962 0 Stamford CT SMFRCT02DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2010-02-28   
203-962 1 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 2 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 3 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 4 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 5 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-962 6 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-06-01   
203-962 7 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-05-01   
203-962 8 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-05-01   
203-962 9 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-06-01   
203-963 A Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 0 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2015-01-27   
203-963 1 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 2 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 3 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 4 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-963 5 Norwalk CT NRWLCT02DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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