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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-227 A Concord NH CNCRNHSODS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 0 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 1 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 2 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 3 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 4 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 5 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 6 Concord NH   4112 COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH 122   2013-12-13   
603-227 7 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 8 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-227 9 Concord NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.