Local Calling Guide

Area code/prefix search

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

NXX: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-991 A Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-991 0 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-991 1 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-06-01   
603-991 2 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-991 3 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-991 4 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-991 5 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-991 6 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-02-07   
603-991 7 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-07-03   
603-991 8 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-09-17   
603-991 9 Littleton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-12-02   

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

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