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: 449

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-449 A Milan NH MILNNHPLRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-449 2 Milan NH MILNNHPLRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-449 3 Milan NH MILNNHPLRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-449 4 Milan NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2019-10-25   
603-449 9 Milan NH MILNNHPLRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2014-06-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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