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.

Monroe, NH

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
603-638 A BARNVTCHRS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-638 1   145J TERRA NOVA TELECOM INC. 122   2023-01-12   
603-638 2 BARNVTCHRS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-638 4 BARNVTCHRS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-638 7   145J TERRA NOVA TELECOM INC. 122   2022-07-01   
603-638 8 MNCHNHCOXPZ  853C TIME WARNER CABLE INFORMATION SVCS (NEW HAMPSHIRE) 122   2012-10-02   
603-874 A MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-874 0   145J TERRA NOVA TELECOM INC. 122   2021-12-12   
603-874 1 MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2005-09-15   
603-874 4 MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.