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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
203-815 5 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2005-09-04   
203-815 6 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-04-03   
203-815 7 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-04-03   
203-815 8 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2005-12-02   
203-815 9 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-04-03   
203-816 A Trumbull CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
203-816 0 Trumbull CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
203-816 1 Trumbull CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-07-13   
203-816 2 Trumbull CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-816 3 Trumbull CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-816 4 Trumbull CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-816 5 Trumbull CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-816 6 Trumbull CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2003-09-22   
203-816 7 Trumbull CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2002-12-11   
203-816 8 Trumbull CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-07-16   
203-816 9 Trumbull CT   145J TERRA NOVA TELECOM INC. 920   2025-04-28   
203-817 A Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-817 0 Stamford CT NRWLCT02SMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2011-12-05   
203-817 1 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-01-17   
203-817 2 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-01-17   
203-817 3 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2007-02-22   
203-817 4 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-01-17   
203-817 5 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2012-08-27   
203-817 6 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-12-05   
203-817 7 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-07-25   
203-817 8 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-07-25   
203-817 9 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-07-25   
203-818 A Norwalk CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-818 0 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2014-05-26   
203-818 1 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-04-01   
203-818 2 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2013-01-22   
203-818 3 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-05-19   
203-818 4 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-12-15   
203-818 5 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-05-19   
203-818 6 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-12-15   
203-818 7 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-12-15   
203-818 8 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-02-25   
203-818 9 Norwalk CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-04-01   
203-819 A Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-819 0 Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2010-05-16   
203-819 1 Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2010-05-16   
203-819 2 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2010-05-07   
203-819 3 Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2009-04-10   
203-819 4 Waterbury CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-11-21   
203-819 5 Waterbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2006-08-21   
203-819 6 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2010-09-09   
203-819 7 Waterbury CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-03-03   
203-819 8 Waterbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-07-31   
203-819 9 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2012-07-01   
203-820 A Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 0 Norwalk CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2014-10-12   
203-820 1 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 2 Norwalk CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-10-12   
203-820 3 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 4 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 5 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 6 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 7 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 8 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-820 9 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920      
203-821 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 0 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 1 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-09-10   
203-821 2 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 3 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 4 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 5 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 6 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 7 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2010-10-23   
203-821 8 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-821 9 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-822 A Norwalk CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-822 0 Norwalk CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2014-08-22   
203-822 1 Norwalk CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2010-10-13   
203-822 2 Norwalk CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2010-10-13   
203-822 3 Norwalk CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-02-10   
203-822 4 Norwalk CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-02-10   
203-822 5 Norwalk CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-24   
203-822 6 Norwalk CT HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2023-08-24   
203-822 7 Norwalk CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-04-20   
203-822 8 Norwalk CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2010-08-31   
203-822 9 Norwalk CT NWHNCT02X5X  7421 AT&T - LOCAL 920      
203-823 A New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
203-823 0 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2008-08-07   
203-823 1 New Haven CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2008-08-07   
203-823 2 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-10-18   
203-823 3 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-11-07   
203-823 4 New Haven CT   829J PAETEC ITEL, LLC 920   2007-08-01   
203-823 5 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-09-03   
203-823 6 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-09-03   
203-823 7 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-09-03   
203-823 8 New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-09-03   
203-823 9 New Haven CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
203-824 A New Haven CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-825 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-826 A Danbury CT NWLNCT02DS7  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-826 0 Danbury CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-11-22   
203-826 1 Danbury CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-11-22   
203-826 2 Danbury CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2010-11-18   
203-826 3 Danbury CT   829J PAETEC ITEL, LLC 920   2005-08-15   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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