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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-324 2 Nashua NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-324 3 Nashua NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-324 4 Nashua NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-324 5 Nashua NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122   2006-06-22   
603-324 6 Nashua NH MNCHNHCO40Z  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 122      
603-324 7 Nashua NH   829J PAETEC ITEL, LLC 122   2011-09-26   
603-324 8 Nashua NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-324 9 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2011-11-21   
603-325 A New Boston NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-325 0 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-01-02   
603-325 1 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-04-19   
603-325 2 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-07-02   
603-325 3 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-04-19   
603-325 4 New Boston NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2003-03-23   
603-325 5 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-05-17   
603-325 6 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2026-01-15   
603-325 7 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-11-01   
603-325 8 New Boston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-09-01   
603-325 9 New Boston NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-326 A Berlin NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-326 0 Berlin NH   829J PAETEC ITEL, LLC 122   2004-10-03   
603-326 1 Berlin NH   829J PAETEC ITEL, LLC 122   2004-08-12   
603-326 2 Berlin NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2002-09-10   
603-326 3 Berlin NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2024-04-24   
603-326 4 Berlin NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-326 5 Berlin NH   829J PAETEC ITEL, LLC 122   2003-09-09   
603-326 6 Berlin NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2005-07-01   
603-326 7 Berlin NH   829J PAETEC ITEL, LLC 122   2007-10-12   
603-326 8 Berlin NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2009-01-05   
603-326 9 Berlin NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122   2007-03-14   
603-327 A Salem NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-327 0 Salem NH   829J PAETEC ITEL, LLC 122      
603-327 1 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2015-06-01   
603-327 2 Salem NH   145J TERRA NOVA TELECOM INC. 122   2026-03-23   
603-327 3 Salem NH   6386 BELL ATLANTIC MOBILE, INC 122   2026-03-09   
603-327 4 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-03-03   
603-327 5 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-03-04   
603-327 6 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-04-01   
603-327 7 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-07-02   
603-327 8 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2013-06-28   
603-327 9 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-05-01   
603-328 A Salem NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-328 0 Salem NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2005-01-24   
603-328 1 Salem NH   829J PAETEC ITEL, LLC 122      
603-328 2 Salem NH   829J PAETEC ITEL, LLC 122      
603-328 3 Salem NH MNCHNHCOX1Y  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2004-04-18   
603-328 4 Salem NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-02-09   
603-328 5 Salem NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2015-08-04   
603-328 6 Salem NH   829J PAETEC ITEL, LLC 122      
603-328 7 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2024-04-23   
603-328 8 Salem NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2014-11-24   
603-328 9 Salem NH   829J PAETEC ITEL, LLC 122   2000-07-21   
603-329 A Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-329 0 Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-329 1 Hampstead NH   829J PAETEC ITEL, LLC 122   2001-09-24   
603-329 2 Hampstead NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2018-10-08   
603-329 3 Hampstead NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-329 4 Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-329 5 Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-329 6 Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-329 7 Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-329 8 Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-329 9 Hampstead NH HMPSNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-330 A Rochester NH ROCHNHWEDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-331 A Colebrook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-331 0 Colebrook NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2010-08-05   
603-331 1 Colebrook NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2009-03-16   
603-331 2 Colebrook NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2010-09-02   
603-331 3 Colebrook NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-05-14   
603-331 4 Colebrook NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-331 5 Colebrook NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-10-12   
603-331 6 Colebrook NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2020-10-26   
603-332 A Rochester NH ROCHNHWEDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-333 A Concord NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      
603-333 0 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2018-01-29   
603-333 1 Concord NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2018-01-26   
603-333 2 Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2018-01-27   
603-333 3 Concord NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2018-02-02   
603-333 4 Concord NH MNCHNHCOCM1  5562 METROPCS, INC. 122   2018-06-10   
603-333 5 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2018-07-13   
603-333 6 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2018-10-05   
603-333 7 Concord NH MNCHNHCOCM1  5562 METROPCS, INC. 122   2018-10-13   
603-333 8 Concord NH MNCHNHCO18Z  197D VONAGE AMERICA LLC 122   2018-12-06   
603-333 9 Concord NH MNCHNHCO18Z  197D VONAGE AMERICA LLC 122   2018-12-06   
603-334 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 0 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 1 Portsmouth NH   829J PAETEC ITEL, LLC 122   2001-05-01   
603-334 2 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 3 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 4 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 5 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 6 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 7 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 8 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-334 9 Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-335 A Rochester NH ROCHNHWEDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-336 A Hinsdale NH HNDLNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-336 1 Hinsdale NH   829J PAETEC ITEL, LLC 122   2004-04-04   
603-336 2 Hinsdale NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2012-04-10   
603-336 3 Hinsdale NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   

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Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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