Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 0043 DUNBARTON TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
603-774 A Dunbarton NH DNTNNHXADS0  122      

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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