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: 804

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-804 A Dover NH MNCHNHBO2MD  490J DISH WIRELESS, LLC 122      
603-804 0 Dover NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2023-10-23   
603-804 9 Dover NH MNCHNHBO2MD  490J DISH WIRELESS, LLC 122   2023-10-22   

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

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