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.

Switch: MNCHNHNIDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
603-259 A Littleton NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-280 A Barrington NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-287 A Claremont NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-294 A Portsmouth NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-326 A Berlin NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-331 A Colebrook NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-346 A Plymouth NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-369 A Concord NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-499 A Keene NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-556 A Laconia NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-565 A Penacook NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-574 A Alstead NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-576 A Orford NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-583 A Exeter NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-614 A West Chesterfield NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-618 A Pike NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-678 A Lebanon NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-684 A Lancaster NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-709 A Plainfield NH 4017 LEVEL 3 COMMUNICATIONS - NH 122   2004-10-08   
603-725 A Tamworth NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-728 A North Woodstock NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-733 A North Conway NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-769 A Milford NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-780 A Canaan NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-782 A Manchester NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-819 A Plaistow NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-871 A Sanbornville NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-873 A Sunapee NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-874 A Monroe NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-923 A Rochester NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-951 A Milan NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-952 A Salem NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-967 A Hampton NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      
603-992 A Danbury NH 4017 LEVEL 3 COMMUNICATIONS - NH 122      

Last updated: Sun, 31 May 2020 11:59:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.