Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 812

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-812 A Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-812 0 Portsmouth NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-812 1 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-04-01   
603-812 2 Portsmouth NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122      
603-812 3 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-09-19   
603-812 4 Portsmouth NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-812 5 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-08-07   
603-812 6 Portsmouth NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2007-05-04   
603-812 7 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-08-14   
603-812 8 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2010-03-15   
603-812 9 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-08-01   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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