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: 831

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-831 A Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-831 0 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-02-12   
603-831 1 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-07-02   
603-831 2 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-01-02   
603-831 3 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-10-02   
603-831 4 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-06-01   
603-831 5 Greenfield NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-10-30   
603-831 6 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-11-15   
603-831 7 Greenfield NH   829J PAETEC ITEL, LLC 122   2007-11-20   
603-831 8 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-04-04   
603-831 9 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-04-01   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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