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.

Ashland, NH

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
603-375 A MNCHNHCO42Z  793K TWC IP ENABLED SERVICES, LLC 122      
603-375 0 MNCHNHCO23Z  073H TELNYX LLC 122   2024-07-22   
603-375 3   637E ONVOY, LLC - NH 122   2025-02-02   
603-375 4 MNCHNHCO42Z  793K TWC IP ENABLED SERVICES, LLC 122   2012-10-02   
603-968 A ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 0 MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122   2002-09-10   
603-968 1   145J TERRA NOVA TELECOM INC. 122   2023-01-04   
603-968 2 ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 3 ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 4 MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2024-06-27   
603-968 5 MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-03   
603-968 6 ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-968 7 ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-968 9 ASLDNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.