Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 912

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-912 A Salem NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122      
603-912 0 Salem NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122      
603-912 1 Salem NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-09-09   
603-912 2 Salem NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-09-29   
603-912 3 Salem NH MNCHNHBO2MD  490J DISH WIRELESS, LLC 122   2023-10-27   
603-912 4 Salem NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2014-02-10   
603-912 5 Salem NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-12-18   
603-912 6 Salem NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122   2015-03-26   
603-912 7 Salem NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-01-15   
603-912 8 Salem NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-05-20   
603-912 9 Salem NH   145J TERRA NOVA TELECOM INC. 122   2021-05-11   

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

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