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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
203-546 5 Danbury CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-546 6 Danbury CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-546 7 Danbury CT WLMNCT132MD  792K CHARTER IP ENABLED SERVICES, LLC 920   2010-07-17   
203-546 8 Danbury CT WLMNCT132MD  792K CHARTER IP ENABLED SERVICES, LLC 920   2005-01-17   
203-546 9 Danbury CT NWLNCTCS6MD  508J CENTURYLINK COMMUNICATIONS, LLC 920   2014-04-11   
203-547 A Stamford CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
203-548 A Stamford CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-548 0 Stamford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-548 1 Stamford CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-06-21   
203-548 2 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2003-04-16   
203-548 3 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2003-05-09   
203-548 4 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2003-04-16   
203-548 5 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2003-08-01   
203-548 6 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2003-08-01   
203-548 7 Stamford CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-548 8 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2009-06-05   
203-548 9 Stamford CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-07-16   
203-549 A Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-549 0 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-549 1 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-549 2 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-549 3 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-549 4 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-01-11   
203-549 5 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-01-11   
203-549 6 Bridgeport CT   829J PAETEC ITEL, LLC 920      
203-549 7 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-12-24   
203-549 8 Bridgeport CT   612K CSC VOICE, LLC 920   2005-04-21   
203-549 9 Bridgeport CT   612K CSC VOICE, LLC 920   2005-04-21   
203-550 A Stamford CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-551 A Bridgeport CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-551 0 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2006-09-30   
203-551 1 Bridgeport CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-09-20   
203-551 2 Bridgeport CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-551 3 Bridgeport CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-551 4 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-10-08   
203-551 5 Bridgeport CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-551 6 Bridgeport CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-551 7 Bridgeport CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-551 8 Bridgeport CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-551 9 Bridgeport CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-07-01   
203-552 A Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 0 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 1 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 2 Byram CT WHPLNYWPXOY  199F BANDWIDTH.COM CLEC, LLC - CT 132   2010-03-11   
203-552 3 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 4 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 5 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 6 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 7 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 8 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-552 9 Byram CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-553 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 0 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 1 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 2 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 3 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 4 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 5 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 6 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 7 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2008-09-26   
203-553 8 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-553 9 New Haven CT   612K CSC VOICE, LLC 920   2011-08-26   
203-554 A Stamford CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-556 A Bridgeport CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-557 A Westport CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-557 0 Westport CT   612K CSC VOICE, LLC 920      
203-557 1 Westport CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-557 2 Westport CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-557 3 Westport CT   612K CSC VOICE, LLC 920      
203-557 4 Westport CT   612K CSC VOICE, LLC 920      
203-557 5 Westport CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-557 6 Westport CT   612K CSC VOICE, LLC 920   2015-07-25   
203-557 7 Westport CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-557 8 Westport CT   612K CSC VOICE, LLC 920      
203-557 9 Westport CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-558 A Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-559 A Darien CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-559 0 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2004-02-02   
203-559 1 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2004-02-02   
203-559 2 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2007-04-11   
203-559 3 Darien CT HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-559 4 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-09-08   
203-559 5 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-09-08   
203-559 6 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-05-28   
203-559 7 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2003-05-28   
203-559 8 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2002-12-16   
203-559 9 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2002-12-16   
203-560 A Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-561 A Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-562 A New Haven CT NWHNCT03DS3  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 A Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 0 Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 1 Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 2 Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 3 Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 4 Wilton CT NWHNCT02GT0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2007-09-07   
203-563 5 Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 6 Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 7 Wilton CT WLTOCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-563 8 Wilton CT HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-04   

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Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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