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: 931

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-931 A Concord NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-931 0 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-01-29   
603-931 2 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-03-29   
603-931 3 Concord NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2015-07-05   
603-931 4 Concord NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122   2016-04-07   
603-931 5 Concord NH   996E BANDWIDTH.COM CLEC, LLC - NH 122   2015-07-31   
603-931 6 Concord NH MNCHNHNI9MD  5562 METROPCS, INC. 122   2015-10-18   
603-931 7 Concord NH MNCHNHNI9MD  5562 METROPCS, INC. 122   2015-10-18   
603-931 8 Concord NH MNCHNHNI9MD  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2016-02-06   
603-931 9 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-06-19   

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

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