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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-690 A Claremont NH MNCHNHACDS0  7778 BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH 122      
603-690 2 Claremont NH   4286 LIGHTSHIP TELECOM, LLC - NH 122   2001-09-10   
603-690 5 Claremont NH   6290 UNITED STATES CELLULAR CORP. - NEW HAMPSHIRE 122   2005-09-22   
603-690 9 Claremont NH   7778 BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH 122      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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