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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
203-678 7 Wallingford CT   829J PAETEC ITEL, LLC 920      
203-678 8 Wallingford CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   
203-678 9 Wallingford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2016-07-18   
203-679 A Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 0 Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 1 Wallingford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-05-25   
203-679 2 Wallingford CT NWHNCT02GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-07-07   
203-679 3 Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 4 Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 5 Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 6 Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 7 Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 8 Wallingford CT WLFRCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-679 9 Wallingford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-04-19   
203-680 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-680 0 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-01-20   
203-680 1 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2012-11-30   
203-680 2 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2012-11-30   
203-680 3 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2013-01-12   
203-680 4 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2012-11-30   
203-680 5 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2012-11-30   
203-680 6 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2012-11-30   
203-680 7 New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2012-11-30   
203-680 8 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-01-20   
203-680 9 New Haven CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-04-29   
203-681 A Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-681 0 Byram CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2009-02-06   
203-681 1 Byram CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2009-02-06   
203-681 2 Byram CT   612K CSC VOICE, LLC 132   2010-08-26   
203-681 3 Byram CT   829J PAETEC ITEL, LLC 132   2011-03-08   
203-681 4 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-681 5 Byram CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2008-10-10   
203-681 6 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-681 7 Byram CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2008-10-10   
203-681 8 Byram CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2008-06-18   
203-681 9 Byram CT NYCMNY83D1S  350E YMAX COMMUNICATIONS CORP. - CT 132   2009-02-06   
203-682 A Westport CT   829J PAETEC ITEL, LLC 920      
203-682 0 Westport CT   829J PAETEC ITEL, LLC 920      
203-682 1 Westport CT   829J PAETEC ITEL, LLC 920      
203-682 2 Westport CT   829J PAETEC ITEL, LLC 920      
203-682 3 Westport CT NWHNCT02GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-07-07   
203-682 4 Westport CT   829J PAETEC ITEL, LLC 920      
203-682 5 Westport CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-08-14   
203-682 6 Westport CT   829J PAETEC ITEL, LLC 920      
203-682 7 Westport CT   829J PAETEC ITEL, LLC 920      
203-682 8 Westport CT   829J PAETEC ITEL, LLC 920      
203-682 9 Westport CT   829J PAETEC ITEL, LLC 920      
203-683 A Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 0 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 1 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 2 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 3 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 4 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 5 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 6 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 7 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-683 8 Bridgeport CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-06-19   
203-683 9 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-684 A New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-684 0 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-684 1 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-684 2 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-684 3 New Haven CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-10-12   
203-684 4 New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2008-11-17   
203-684 5 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-02-14   
203-684 6 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-684 7 New Haven CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-684 8 New Haven CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-10-12   
203-684 9 New Haven CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2008-11-17   
203-685 A Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-686 A Meriden CT MRDNCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-687 A New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-687 0 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-07-21   
203-687 1 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-07-21   
203-687 2 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-07-21   
203-687 3 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-12-29   
203-687 4 New Haven CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-687 5 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2003-10-03   
203-687 6 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2003-08-09   
203-687 7 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2003-06-04   
203-687 8 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2003-08-09   
203-687 9 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2003-09-03   
203-688 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-689 A Guilford CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-689 0 Guilford CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   
203-689 1 Guilford CT   829J PAETEC ITEL, LLC 920   2006-02-02   
203-689 2 Guilford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-02-08   
203-689 3 Guilford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-05-10   
203-689 4 Guilford CT GUFDCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2008-07-24   
203-689 5 Guilford CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2009-08-23   
203-689 6 Guilford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-06-30   
203-689 7 Guilford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2014-06-30   
203-689 8 Guilford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-05-10   
203-689 9 Guilford CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-690 A Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-690 0 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-10-10   
203-690 1 Bridgeport CT   612K CSC VOICE, LLC 920   2011-12-24   
203-690 2 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-04-01   
203-690 3 Bridgeport CT SMFRCTCTDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2008-10-05   
203-690 4 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-10-10   

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

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