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.

OCN: 637E ONVOY, LLC - NH

<< 1 2 3

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
603-945 6 Manchester NH MNCHNHCOX9Z  122      
603-945 7 Manchester NH MNCHNHCOX9Z  122      
603-945 8 Manchester NH MNCHNHCOX9Z  122      
603-945 9 Manchester NH MNCHNHCOX9Z  122      
603-948 4 Rochester NH MNCHNHCOX9Z  122      
603-956 3 Portsmouth NH MNCHNHCOX9Z  122      
603-956 4 Portsmouth NH MNCHNHCOX9Z  122      
603-956 5 Portsmouth NH MNCHNHCOX9Z  122      
603-956 6 Portsmouth NH MNCHNHCOX9Z  122      
603-956 7 Portsmouth NH MNCHNHCOX9Z  122      
603-956 9 Portsmouth NH MNCHNHCOX9Z  122      
603-988 0 Portsmouth NH MNCHNHCOX9Z  122      

<< 1 2 3

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.