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.

Hanover, NH

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
603-676 7 MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-676 8   829J PAETEC ITEL, LLC 122   2005-05-01   
603-676 9   145J TERRA NOVA TELECOM INC. 122   2025-09-16   

<< 1 2

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.