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: 916

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-916 A Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-03-17   
603-916 0 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2024-06-07   
603-916 1 Meredith NH MNCHNHCO23Z  073H TELNYX LLC 122   2024-06-30   
603-916 2 Meredith NH   637E ONVOY, LLC - NH 122   2025-02-09   
603-916 9 Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-03-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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