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: 708

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-708 A Canterbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-708 0 Canterbury NH MNCHNHCO23Z  073H TELNYX LLC 122   2024-07-22   
603-708 1 Canterbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2005-04-11   
603-708 2 Canterbury NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2015-05-30   
603-708 3 Canterbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2023-03-10   

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

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