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: 845

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-845 A Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 0 Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 1 Derry NH PTMONH07DS1  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-845 2 Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 3 Derry NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-845 4 Derry NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-845 5 Derry NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122      
603-845 6 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-845 7 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-845 8 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-845 9 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.