Local Calling Guide

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

NXX: 921

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-921 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-921 0 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2009-09-05   
603-921 1 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2009-11-28   
603-921 2 Nashua NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2010-10-26   
603-921 3 Nashua NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-07-06   
603-921 4 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2013-08-01   
603-921 5 Nashua NH MNCHNHCO43Z  792K CHARTER IP ENABLED SERVICES, LLC 122   2012-05-24   
603-921 6 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-08-01   
603-921 7 Nashua NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-06-20   
603-921 8 Nashua NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-06-20   
603-921 9 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-07-01   

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

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