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: 295

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-295 A Durham NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122      

Last updated: Fri, 10 Sep 2021 12:38:21 UTC

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