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
603-880 1 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-880 2 Nashua NH   073H TELNYX LLC 122   2022-05-13   
603-880 3 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-880 4 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-880 5 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-880 6 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-880 7 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-880 8 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-880 9 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 A Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 0 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 1 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 2 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 3 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 4 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 5 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 6 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2022-05-04   
603-881 7 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 8 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-881 9 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-882 A Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-883 A Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-884 A Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-884 0 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2024-10-10   
603-884 1 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2025-01-22   
603-884 2 Nashua NH   732J NUSO, LLC 122   2025-03-17   
603-884 3 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-884 4 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-884 5 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-884 6 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2025-11-05   
603-884 7 Nashua NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2025-09-25   
603-884 8 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-884 9 Nashua NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2025-06-28   
603-885 A Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-886 A Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-887 A Chester NH WEARNHXADS1  0039 GRANITE STATE TEL., INC. 122      
603-888 A Nashua NH NASHNHGRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-889 A Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-890 A Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-891 A Nashua NH NASHNHGRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-892 A Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-892 0 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-892 1 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-892 2 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2007-07-05   
603-892 3 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2010-10-09   
603-892 4 Concord NH   6386 BELL ATLANTIC MOBILE, INC 122   2011-03-04   
603-892 5 Concord NH   6386 BELL ATLANTIC MOBILE, INC 122   2011-06-20   
603-892 6 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-892 7 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2011-07-21   
603-892 8 Concord NH   6386 BELL ATLANTIC MOBILE, INC 122   2013-06-04   
603-892 9 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-893 A Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-894 A Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 A Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 0 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 1 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 2 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 3 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 4 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 5 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 6 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 7 Raymond NH   318J COMCAST IP PHONE, LLC 122   2015-10-16   
603-895 8 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 9 Raymond NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 A Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 0 Salem NH   624H ONVOY SPECTRUM, LLC 122   2022-01-07   
603-896 1 Salem NH   624H ONVOY SPECTRUM, LLC 122   2022-01-07   
603-896 3 Salem NH   6386 BELL ATLANTIC MOBILE, INC 122   2025-01-02   
603-896 4 Salem NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2024-11-10   
603-896 5 Salem NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 6 Salem NH   145J TERRA NOVA TELECOM INC. 122   2024-12-28   
603-896 7 Salem NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 8 Salem NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 9 Salem NH   637E ONVOY, LLC - NH 122   2023-08-20   
603-897 A Nashua NH NASHNHGRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 0 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 1 Nashua NH   145J TERRA NOVA TELECOM INC. 122   2022-06-02   
603-897 2 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 3 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 4 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 5 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2005-09-20   
603-897 6 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 7 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 8 Nashua NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-897 9 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2006-07-03   
603-898 A Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 A Rindge NH RNDGNHCERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 0 Rindge NH   829J PAETEC ITEL, LLC 122   2001-09-10   
603-899 1 Rindge NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 2 Rindge NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 3 Rindge NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 4 Rindge NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 5 Rindge NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 6 Rindge NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-899 7 Rindge NH   4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-07   
603-899 8 Rindge NH   4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2005-09-15   
603-899 9 Rindge NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-900 A Newport NH MNCHNHCO26Z  965H FRACTEL, LLC 122      
603-900 0 Newport NH   965H FRACTEL, LLC 122   2020-08-10   
603-900 1 Newport NH   6386 BELL ATLANTIC MOBILE, INC 122   2024-09-17   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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