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: 342

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-342 A Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 0 Berlin NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2005-01-14   
603-342 1 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 2 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 3 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 4 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 5 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 6 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 7 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 8 Berlin NH BRLNNHHERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-342 9 Berlin NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122   2007-10-17   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.