Local Calling Guide

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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
603-966 9 Nashua NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-10-27   
603-967 A Hampton NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-967 4 Hampton NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-967 8 Hampton NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2019-07-05   
603-968 A Ashland NH ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 0 Ashland NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122   2002-09-10   
603-968 1 Ashland NH   145J TERRA NOVA TELECOM INC. 122   2023-01-04   
603-968 2 Ashland NH ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 3 Ashland NH ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 4 Ashland NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2024-06-27   
603-968 5 Ashland NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-03   
603-968 6 Ashland NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-968 7 Ashland NH ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 9 Ashland NH ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-969 A Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-02-09   
603-969 0 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 1 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 2 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 3 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 4 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 5 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 6 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 7 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 8 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-969 9 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-970 A Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-970 0 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2006-05-19   
603-970 1 Dover NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-09-01   
603-970 2 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-970 3 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-970 4 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-970 5 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-970 6 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-970 7 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-970 8 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-970 9 Dover NH DOVRNHTHDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-12-15   
603-971 A Rindge NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-971 0 Rindge NH MNCHNHCO42Z  793K TWC IP ENABLED SERVICES, LLC 122   2024-01-07   
603-971 1 Rindge NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-971 2 Rindge NH   145J TERRA NOVA TELECOM INC. 122   2023-11-11   
603-971 3 Rindge NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-971 4 Rindge NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-971 6 Rindge NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2019-05-16   
603-971 9 Rindge NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-973 A Rochester NH MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 0 Rochester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-08-05   
603-973 1 Rochester NH MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 2 Rochester NH MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 3 Rochester NH MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 4 Rochester NH MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 5 Rochester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-12-09   
603-973 6 Rochester NH MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-973 7 Rochester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2012-09-22   
603-973 9 Rochester NH MNCHNHCOCM1  5562 METROPCS, INC. 122      
603-974 A Plaistow NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-974 0 Plaistow NH   829J PAETEC ITEL, LLC 122   2000-05-29   
603-974 1 Plaistow NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-974 2 Plaistow NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-974 3 Plaistow NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-05-05   
603-974 5 Plaistow NH   145J TERRA NOVA TELECOM INC. 122   2023-11-11   
603-974 7 Plaistow NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2013-07-08   
603-974 9 Plaistow NH   145J TERRA NOVA TELECOM INC. 122   2025-05-07   
603-975 A Boscawen NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-975 0 Boscawen NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2010-01-25   
603-975 7 Boscawen NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2025-12-12   
603-977 A Andover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-977 0 Andover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2010-01-25   
603-977 7 Andover NH MNCHNHCO26Z  965H FRACTEL, LLC 122   2020-07-06   
603-977 8 Andover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2021-03-10   
603-977 9 Andover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2021-03-10   
603-978 A Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 0 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 1 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 2 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 3 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 4 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 5 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 6 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-978 7 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2005-01-07   
603-978 8 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2005-03-04   
603-978 9 Dover NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      
603-986 A North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-986 0 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-09-29   
603-986 1 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-01-02   
603-986 2 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-05-02   
603-986 3 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-11-01   
603-986 4 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-06-03   
603-986 5 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-986 6 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-986 7 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-986 8 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-986 9 North Conway NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-988 A Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-988 0 Portsmouth NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2021-11-13   
603-988 1 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2007-05-02   
603-988 2 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2006-10-19   
603-988 3 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2006-10-19   
603-988 4 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2006-01-12   
603-988 5 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2005-10-03   
603-988 6 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2005-01-17   

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

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