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: 439

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-439 A Keene NH NASHNH08AMD  4053 CONVERSENT COMMUNICATIONS OF NEW HAMPSHIRE, LLC 122      
603-439 0 Keene NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-08-29   
603-439 1 Keene NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-04-27   
603-439 2 Keene NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2005-01-27   
603-439 3 Keene NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2003-07-28   
603-439 4 Keene NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2003-07-28   
603-439 6 Keene NH NASHNH08AMD  4053 CONVERSENT COMMUNICATIONS OF NEW HAMPSHIRE, LLC 122      
603-439 7 Keene NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-04-01   
603-439 8 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2024-02-15   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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