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: 697

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-697 A Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-697 0 Dover NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-697 1 Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-697 2 Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-697 3 Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-697 4 Dover NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-697 5 Dover NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-697 6 Dover NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      
603-697 7 Dover NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-697 8 Dover NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-697 9 Dover NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.