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: 470

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-470 A Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-470 0 Concord NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2014-03-22   
603-470 1 Concord NH CNCRNHSODS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2012-12-12   
603-470 2 Concord NH CNCRNHSODS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2012-12-12   
603-470 3 Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-470 4 Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-470 5 Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-470 6 Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-470 7 Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-470 8 Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-470 9 Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.