Local Calling Guide

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

NXX: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-305 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-305 0 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 1 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 2 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 3 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 4 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 5 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 6 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2003-02-08   
603-305 7 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 8 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-305 9 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122      

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

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