Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 306

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-306 A Lebanon NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-306 0 Lebanon NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122   2007-01-17   
603-306 1 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-06-05   
603-306 2 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2009-01-05   
603-306 3 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2015-02-28   
603-306 4 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2010-07-07   
603-306 5 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-05-10   
603-306 6 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-03-03   
603-306 7 Lebanon NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-03-03   
603-306 8 Lebanon NH MNCHNHCOXAZ  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2011-09-21   
603-306 9 Lebanon NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-10-04   

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

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