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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
203-626 7 Wallingford CT   829J PAETEC ITEL, LLC 920   2008-05-12   
203-626 8 Wallingford CT   829J PAETEC ITEL, LLC 920   2008-01-28   
203-626 9 Wallingford CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2010-09-16   
203-627 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2024-02-09   
203-627 0 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 1 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 2 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 3 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 4 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 5 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 6 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 7 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 8 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-627 9 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-628 A Danbury CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-628 0 Danbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-03-27   
203-628 1 Danbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-09-06   
203-628 2 Danbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-628 3 Danbury CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2013-10-21   
203-628 4 Danbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-07-26   
203-628 5 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2013-01-30   
203-628 6 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-05-02   
203-628 7 Danbury CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2009-03-22   
203-628 8 Danbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-11-26   
203-628 9 Danbury CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-629 A Greenwich CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-630 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-631 A Meriden CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-632 A Naugatuck CT   829J PAETEC ITEL, LLC 920      
203-632 0 Naugatuck CT   829J PAETEC ITEL, LLC 920      
203-632 1 Naugatuck CT   829J PAETEC ITEL, LLC 920      
203-632 2 Naugatuck CT   829J PAETEC ITEL, LLC 920      
203-632 3 Naugatuck CT   829J PAETEC ITEL, LLC 920      
203-632 4 Naugatuck CT   829J PAETEC ITEL, LLC 920      
203-632 5 Naugatuck CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-11-22   
203-632 6 Naugatuck CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-632 7 Naugatuck CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-08-11   
203-632 8 Naugatuck CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2008-03-07   
203-632 9 Naugatuck CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
203-633 A Wolcott CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-633 0 Wolcott CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-04   
203-633 1 Wolcott CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-14   
203-633 2 Wolcott CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-10-30   
203-633 3 Wolcott CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-02-08   
203-633 4 Wolcott CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-633 5 Wolcott CT HRFRCT03GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2011-04-26   
203-633 6 Wolcott CT   829J PAETEC ITEL, LLC 920   2005-11-20   
203-633 7 Wolcott CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   
203-633 8 Wolcott CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   
203-633 9 Wolcott CT NWHNCT02XJX  624H ONVOY SPECTRUM, LLC 920   2021-11-08   
203-634 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-635 A Westport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-635 0 Westport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-12-29   
203-635 1 Westport CT   829J PAETEC ITEL, LLC 920   2005-06-06   
203-635 2 Westport CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-11-13   
203-635 3 Westport CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-08-29   
203-635 4 Westport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-635 5 Westport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-08-26   
203-635 6 Westport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-03-03   
203-635 7 Westport CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-11-13   
203-635 8 Westport CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   
203-635 9 Westport CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   
203-636 A Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-636 0 Darien CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-11-11   
203-636 1 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-02-04   
203-636 2 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-02-04   
203-636 3 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-02-04   
203-636 4 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-02-04   
203-636 5 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-02-04   
203-636 6 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-02-04   
203-636 7 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2005-02-04   
203-636 8 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-11-05   
203-636 9 Darien CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2004-11-05   
203-637 A Old Greenwich CT OGNWCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-638 A Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 0 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 1 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 2 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 3 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 4 Trumbull CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2010-03-21   
203-638 5 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 6 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 7 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-638 8 Trumbull CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2022-05-21   
203-638 9 Trumbull CT   829J PAETEC ITEL, LLC 920      
203-639 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-640 A New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-641 A New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-642 A Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-642 0 Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-642 1 Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-642 2 Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-642 3 Norwalk CT   612K CSC VOICE, LLC 920   2006-11-13   
203-642 4 Norwalk CT   612K CSC VOICE, LLC 920   2003-07-21   
203-642 5 Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-642 6 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-12-05   
203-642 7 Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-642 8 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-01-09   
203-642 9 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-01-09   
203-643 A Branford CT   829J PAETEC ITEL, LLC 920      

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

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