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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
203-774 6 Wallingford CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2014-07-16   
203-774 7 Wallingford CT   829J PAETEC ITEL, LLC 920      
203-774 8 Wallingford CT   829J PAETEC ITEL, LLC 920      
203-774 9 Wallingford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2016-05-04   
203-775 A Danbury CT BRFDCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-776 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-777 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-778 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-779 A Madison CT   829J PAETEC ITEL, LLC 920      
203-779 0 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 1 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 2 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 3 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 4 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 5 Madison CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2004-12-18   
203-779 6 Madison CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-05-26   
203-779 7 Madison CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-06-23   
203-779 8 Madison CT   829J PAETEC ITEL, LLC 920   2009-03-30   
203-779 9 Madison CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2002-12-23   
203-780 A New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
203-780 0 New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-04-29   
203-780 1 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-12-08   
203-780 2 New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2012-11-23   
203-780 3 New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2012-11-23   
203-780 4 New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2012-11-23   
203-780 5 New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2012-11-23   
203-780 6 New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2012-11-23   
203-780 7 New Haven CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2013-09-30   
203-780 8 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2013-09-12   
203-780 9 New Haven CT   829J PAETEC ITEL, LLC 920   2014-08-14   
203-781 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 0 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 1 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 2 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 3 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 4 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 5 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 6 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-03-10   
203-781 7 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 8 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-781 9 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-782 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-783 A Milford CT MLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-784 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-785 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-786 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 0 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 1 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 2 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 3 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 4 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 5 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 6 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 7 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-787 8 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-07-03   
203-787 9 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-788 A Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-789 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-790 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-791 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-792 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-793 A Wallingford CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-793 0 Wallingford CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   
203-793 1 Wallingford CT   829J PAETEC ITEL, LLC 920   2006-04-06   
203-793 2 Wallingford CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-793 3 Wallingford CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-793 4 Wallingford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2020-11-22   
203-793 5 Wallingford CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2020-10-18   
203-793 6 Wallingford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2016-02-08   
203-793 7 Wallingford CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2006-11-14   
203-793 8 Wallingford CT SMFRCTCTDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2017-03-03   
203-793 9 Wallingford CT   145J TERRA NOVA TELECOM INC. 920   2020-12-12   
203-794 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-794 0 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-794 1 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-794 2 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-06-16   
203-794 3 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-794 4 Danbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-794 5 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-794 6 Danbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-794 7 Danbury CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-08-11   
203-794 8 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-794 9 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-795 A New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-796 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-797 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-798 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-799 A New Haven CT ORNGCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-800 A New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-800 0 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2011-05-08   
203-800 1 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-01-01   
203-800 2 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-27   
203-800 3 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-27   
203-800 4 New Haven CT   829J PAETEC ITEL, LLC 920   2011-05-10   
203-800 5 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-05-10   
203-800 6 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-05-10   
203-800 7 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-27   
203-800 8 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-27   
203-800 9 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-27   

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

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