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: 680

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-680 A Hillsboro NH MNCHNHCOPS1  631H ENHANCED COMMUNICATIONS OF NORTHERN NEW ENGLAND-NH 122      
603-680 0 Hillsboro NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-680 1 Hillsboro NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-680 3 Hillsboro NH MNCHNHCOPS1  631H ENHANCED COMMUNICATIONS OF NORTHERN NEW ENGLAND-NH 122   2016-08-02   
603-680 4 Hillsboro NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2010-02-10   
603-680 5 Hillsboro NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2019-12-13   
603-680 6 Hillsboro NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2019-12-13   
603-680 8 Hillsboro NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2020-10-26   
603-680 9 Hillsboro NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122   2016-06-02   

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

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