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 4 5 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
603-713 6 Nashua NH MNCHNHCOX9Z  122   2022-12-01   
603-713 7 Nashua NH MNCHNHCOX9Z  122   2022-12-01   
603-713 8 Nashua NH MNCHNHCOX9Z  122   2023-07-11   
603-713 9 Nashua NH MNCHNHCOX9Z  122   2022-12-01   
603-719 7 Keene NH MNCHNHCOX9Z  122   2022-12-02   
603-722 6 Manchester NH MNCHNHCOX9Z  122   2019-12-09   
603-730 3 North Conway NH MNCHNHCOX9Z  122   2022-12-23   
603-730 6 North Conway NH MNCHNHCOX9Z  122   2023-08-20   
603-757 5 Keene NH MNCHNHCOX9Z  122   2023-07-10   
603-782 9 Manchester NH MNCHNHCOX9Z  122   2018-02-02   
603-795 7 Lyme NH MNCHNHCOX9Z  122   2021-08-02   
603-795 8 Lyme NH MNCHNHCOX9Z  122   2022-12-23   
603-802 A Concord NH MNCHNHCOX9Z  122      
603-802 2 Concord NH MNCHNHCOX9Z  122   2022-11-13   
603-802 3 Concord NH MNCHNHCOX9Z  122   2022-11-13   
603-802 4 Concord NH MNCHNHCOX9Z  122   2022-12-01   
603-802 5 Concord NH MNCHNHCOX9Z  122   2022-12-01   
603-802 6 Concord NH MNCHNHCOX9Z  122   2022-12-01   
603-802 7 Concord NH MNCHNHCOX9Z  122   2023-07-06   
603-803 4 Keene NH MNCHNHCOX9Z  122   2022-09-29   
603-803 5 Keene NH MNCHNHCOX9Z  122   2021-08-02   
603-803 6 Keene NH MNCHNHCOX9Z  122   2022-09-29   
603-804 4 Dover NH MNCHNHCOX9Z  122   2024-06-07   
603-810 6 Nashua NH MNCHNHCOX9Z  122   2021-08-02   
603-810 7 Nashua NH MNCHNHCOX9Z  122   2021-08-02   
603-810 8 Nashua NH MNCHNHCOX9Z  122   2021-08-02   
603-824 8 Salem NH MNCHNHCOX9Z  122   2023-04-10   
603-825 4 Manchester NH MNCHNHCOX9Z  122   2022-09-29   
603-825 5 Manchester NH MNCHNHCOX9Z  122   2022-05-27   
603-825 6 Manchester NH MNCHNHCOX9Z  122   2022-09-29   
603-825 7 Manchester NH MNCHNHCOX9Z  122   2022-09-29   
603-836 9 Manchester NH MNCHNHCOX9Z  122   2019-12-09   
603-842 7 Dover NH MNCHNHCOX9Z  122   2023-06-12   
603-850 3 Lisbon NH   122   2025-02-02   
603-857 7 Suncook NH MNCHNHCOX9Z  122   2024-11-17   
603-859 8 New Durham NH MNCHNHCOX9Z  122   2025-01-18   
603-896 9 Salem NH MNCHNHCOX9Z  122   2023-08-20   
603-903 1 Keene NH MNCHNHCOX9Z  122   2008-04-10   
603-912 1 Salem NH MNCHNHCOX9Z  122   2023-09-09   
603-912 2 Salem NH MNCHNHCOX9Z  122   2022-09-29   
603-912 7 Salem NH MNCHNHCOX9Z  122   2022-01-15   
603-912 8 Salem NH MNCHNHCOX9Z  122   2022-05-20   
603-915 4 Gorham NH MNCHNHCOX9Z  122   2024-10-26   
603-916 2 Meredith NH   122   2025-02-09   
603-919 1 Rochester NH MNCHNHCOX9Z  122   2023-08-20   
603-932 A Manchester NH MNCHNHCOX9Z  122      
603-932 4 Manchester NH MNCHNHCOX9Z  122   2019-10-15   
603-932 5 Manchester NH MNCHNHCOX9Z  122   2019-10-15   
603-932 6 Manchester NH MNCHNHCOX9Z  122   2018-09-11   
603-932 7 Manchester NH MNCHNHCOX9Z  122   2018-08-02   

<< 1 2 3 4 5 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.