Local Calling Guide

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

NXX: 340

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-340 A Suncook NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-340 0 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-340 1 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-340 2 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-340 3 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-340 4 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-340 5 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-340 6 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122   2007-05-03   
603-340 7 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122   2010-02-13   
603-340 8 Suncook NH   6386 BELL ATLANTIC MOBILE, INC 122   2011-06-12   
603-340 9 Suncook NH   145J TERRA NOVA TELECOM INC. 122   2024-08-11   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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