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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
203-886 9 Meriden CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2002-12-03   
203-887 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-887 0 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 1 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 2 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 3 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 4 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 5 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 6 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 7 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 8 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-887 9 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-888 A Seymour CT SYMRCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-889 A New Haven CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-889 0 New Haven CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-889 1 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-04-21   
203-889 2 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2012-04-06   
203-889 3 New Haven CT   639C ONVOY, LLC - CT 920      
203-889 4 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-889 5 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-889 6 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-09-03   
203-889 7 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-09-03   
203-889 8 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2005-08-12   
203-889 9 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-890 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-890 0 Stamford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-02-08   
203-890 1 Stamford CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-890 2 Stamford CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-890 3 Stamford CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-890 4 Stamford CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-890 5 Stamford CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-890 6 Stamford CT NRWLCT02XMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-890 7 Stamford CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-890 8 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-890 9 Stamford CT   612K CSC VOICE, LLC 920   2014-05-16   
203-891 A New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-891 0 New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-891 1 New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-891 2 New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-891 3 New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-891 4 New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-891 5 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-10-03   
203-891 6 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-10-03   
203-891 7 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-10-03   
203-891 8 New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-891 9 New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-892 A Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-892 0 Ansonia-Derby CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-02-10   
203-892 1 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2011-03-21   
203-892 2 Ansonia-Derby CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-02-10   
203-892 3 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2011-03-21   
203-892 4 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2013-07-04   
203-892 5 Ansonia-Derby CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-05-02   
203-892 6 Ansonia-Derby CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-06-01   
203-892 7 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2011-06-10   
203-892 8 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2011-02-17   
203-892 9 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2011-01-06   
203-893 A Ansonia-Derby CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-893 0 Ansonia-Derby CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2007-08-20   
203-893 1 Ansonia-Derby CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2008-07-05   
203-893 2 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-03-14   
203-893 3 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-06-21   
203-893 4 Ansonia-Derby CT HRFRCTASDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920   2008-08-01   
203-893 5 Ansonia-Derby CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2008-09-19   
203-893 6 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-10-09   
203-893 7 Ansonia-Derby CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2010-09-09   
203-893 8 Ansonia-Derby CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2009-10-16   
203-893 9 Ansonia-Derby CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2010-07-11   
203-894 A Ridgefield CT RDFDCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-894 0 Ridgefield CT RDFDCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-894 1 Ridgefield CT RDFDCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-894 2 Ridgefield CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-04-28   
203-894 3 Ridgefield CT RDFDCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-894 4 Ridgefield CT   829J PAETEC ITEL, LLC 920   2013-06-04   
203-894 5 Ridgefield CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2012-07-08   
203-894 6 Ridgefield CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-04-28   
203-894 7 Ridgefield CT RDFDCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-894 8 Ridgefield CT RDFDCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-894 9 Ridgefield CT RDFDCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-895 A Trumbull CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-896 A Madison CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
203-896 0 Madison CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-06-30   
203-896 1 Madison CT   829J PAETEC ITEL, LLC 920   2005-09-23   
203-896 2 Madison CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2024-10-22   
203-896 3 Madison CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2024-10-22   
203-896 4 Madison CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2020-10-25   
203-896 5 Madison CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2021-03-21   
203-896 6 Madison CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2022-10-07   
203-896 7 Madison CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-07   
203-896 8 Madison CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
203-896 9 Madison CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2025-05-06   
203-897 A Stamford CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-897 0 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   
203-897 1 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   
203-897 2 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   
203-897 3 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   
203-897 4 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   
203-897 5 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   
203-897 6 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   
203-897 7 Stamford CT   7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2008-10-04   

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

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