Local Calling Guide

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

NXX: 662

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-662 A Conway NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-662 0 Conway NH   793K TWC IP ENABLED SERVICES, LLC 122   2012-10-02   
603-662 2 Conway NH   6386 BELL ATLANTIC MOBILE, INC 122   2008-12-12   
603-662 3 Conway NH   6290 UNITED STATES CELLULAR - NH 122      
603-662 4 Conway NH   6290 UNITED STATES CELLULAR - NH 122      
603-662 5 Conway NH   6290 UNITED STATES CELLULAR - NH 122      
603-662 6 Conway NH   6290 UNITED STATES CELLULAR - NH 122      
603-662 7 Conway NH   6290 UNITED STATES CELLULAR - NH 122      
603-662 8 Conway NH   6290 UNITED STATES CELLULAR - NH 122      
603-662 9 Conway NH   6290 UNITED STATES CELLULAR - NH 122      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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