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
603-372 A Claremont NH PTMONH07DS0  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-372 0 Claremont NH   8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-372 1 Claremont NH   8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-372 2 Claremont NH   6386 BELL ATLANTIC NYNEX MOBILE 122   2007-05-03   
603-372 3 Claremont NH   8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-372 4 Claremont NH   8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-372 5 Claremont NH   8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-372 6 Claremont NH   6386 BELL ATLANTIC NYNEX MOBILE 122   2008-11-03   
603-372 7 Claremont NH   6386 BELL ATLANTIC NYNEX MOBILE 122   2008-05-02   
603-372 9 Claremont NH   8468 FREEDOM RING COMMUNICATIONS, LLC 122      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.