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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
203-723 7 Naugatuck CT NGTCCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-723 8 Naugatuck CT NGTCCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-723 9 Naugatuck CT NGTCCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-724 A Stamford CT   829J PAETEC ITEL, LLC 920      
203-724 0 Stamford CT   829J PAETEC ITEL, LLC 920      
203-724 1 Stamford CT   829J PAETEC ITEL, LLC 920      
203-724 2 Stamford CT   829J PAETEC ITEL, LLC 920      
203-724 3 Stamford CT   829J PAETEC ITEL, LLC 920      
203-724 4 Stamford CT   829J PAETEC ITEL, LLC 920      
203-724 5 Stamford CT   829J PAETEC ITEL, LLC 920   2008-08-12   
203-724 6 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2012-08-27   
203-724 7 Stamford CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-11-03   
203-724 8 Stamford CT NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2012-08-27   
203-724 9 Stamford CT   612K CSC VOICE, LLC 920   2013-03-18   
203-725 A Waterbury CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
203-725 0 Waterbury CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2001-05-07   
203-725 1 Waterbury CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2004-12-25   
203-725 2 Waterbury CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2005-03-11   
203-725 3 Waterbury CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2013-10-30   
203-725 4 Waterbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2010-08-02   
203-725 5 Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-02-04   
203-725 6 Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-02-04   
203-725 7 Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-02-04   
203-725 8 Waterbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2005-02-04   
203-725 9 Waterbury CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920      
203-726 A Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-726 0 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2010-11-06   
203-726 1 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-03-02   
203-726 2 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-03-02   
203-726 3 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-03-02   
203-726 4 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-03-02   
203-726 5 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-03-02   
203-726 6 Bridgeport CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2011-03-02   
203-726 7 Bridgeport CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-11-29   
203-726 8 Bridgeport CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-12-04   
203-726 9 Bridgeport CT HRFRCT0377Z  350E YMAX COMMUNICATIONS CORP. - CT 920   2011-12-04   
203-727 A Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-727 0 Bridgeport CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-09-20   
203-727 1 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-727 2 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-727 3 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-09-18   
203-727 4 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-09-18   
203-727 5 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-727 6 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-727 7 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-08-03   
203-727 8 Bridgeport CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2006-08-03   
203-727 9 Bridgeport CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
203-728 A Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-728 0 Stamford CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2006-12-22   
203-728 1 Stamford CT SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920   2006-12-22   
203-728 2 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-728 3 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-728 4 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-728 5 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-728 6 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-728 7 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-728 8 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-728 9 Stamford CT SMFRCT01DS2  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2006-12-22   
203-729 A Naugatuck CT NGTCCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-730 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 A Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 0 Danbury CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-09-20   
203-731 1 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-731 2 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 3 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 4 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-731 5 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 6 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 7 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-731 8 Danbury CT DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 9 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-09-23   
203-732 A Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-733 A Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-734 A Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-735 A Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 A Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 0 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 1 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 2 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 3 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 4 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 5 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 6 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 7 Ansonia-Derby CT MDTWCTNIBMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-12-10   
203-736 8 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-736 9 Ansonia-Derby CT DRBYCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 A New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 0 New Haven CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-05-25   
203-737 1 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 2 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 3 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 4 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 5 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 6 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 7 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 8 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-737 9 New Haven CT NWHNCT03DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-738 A Guilford CT   829J PAETEC ITEL, LLC 920      
203-738 0 Guilford CT   829J PAETEC ITEL, LLC 920      
203-738 1 Guilford CT   829J PAETEC ITEL, LLC 920      

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

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