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: 848

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-848 A Concord NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-848 0 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 1 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 2 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 3 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 4 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 5 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 6 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 7 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 8 Concord NH   6290 UNITED STATES CELLULAR - NH 122      
603-848 9 Concord NH   6290 UNITED STATES CELLULAR - NH 122      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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