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
603-884 4 Nashua NH NASHNHWPDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-884 5 Nashua NH NASHNHWPDS1  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 NASHNHWPDS1  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 MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-892 1 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-892 2 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2007-07-05   
603-892 3 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2010-10-09   
603-892 4 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-03-04   
603-892 5 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-06-20   
603-892 6 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-892 7 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2011-07-21   
603-892 8 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2013-06-04   
603-892 9 Concord NH MNCHNHCOCM1  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 RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 1 Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 2 Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 3 Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 4 Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 5 Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 6 Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 7 Raymond NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2015-10-16   
603-895 8 Raymond NH RYMNNHFLDS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-895 9 Raymond NH RYMNNHFLDS0  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 DOVRNHTHGMD  624H ONVOY SPECTRUM, LLC 122   2022-01-07   
603-896 1 Salem NH DOVRNHTHGMD  624H ONVOY SPECTRUM, LLC 122   2022-01-07   
603-896 2 Salem NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2026-02-10   
603-896 3 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2025-01-02   
603-896 4 Salem NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2024-11-10   
603-896 5 Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 6 Salem NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2024-12-28   
603-896 7 Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 8 Salem NH SALMNHNBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-896 9 Salem NH MNCHNHCOX9Z  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 NASHNHGRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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