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: 686

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-686 A Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-686 0 Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-686 1 Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-686 2 Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-686 3 Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-686 4 Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-686 5 Exeter NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      
603-686 6 Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-686 7 Exeter NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-686 8 Exeter NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-686 9 Exeter 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.