Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 799

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-799 A Manchester NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-799 0 Manchester NH DOVRNHTHGMD  624H ONVOY SPECTRUM, LLC 122   2023-09-16   
603-799 1 Manchester NH DOVRNHTHGMD  624H ONVOY SPECTRUM, LLC 122   2023-09-16   
603-799 2 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2023-10-30   
603-799 3 Manchester NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2024-08-07   
603-799 4 Manchester NH   145J TERRA NOVA TELECOM INC. 122   2023-11-11   
603-799 5 Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2024-11-10   
603-799 6 Manchester NH   5562 METROPCS, INC. 122      
603-799 7 Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2024-06-10   
603-799 8 Manchester NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2024-06-10   
603-799 9 Manchester NH MNCHNHCO23Z  073H TELNYX LLC 122   2024-08-08   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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