Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-497 A Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 0 Goffstown NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 1 Goffstown NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 2 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 3 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 4 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 5 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 6 Goffstown NH   145J TERRA NOVA TELECOM INC. 122      
603-497 7 Goffstown NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-497 8 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-497 9 Goffstown NH GFTWNHWHRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.