Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Flasher, ND

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
701-597 A HAZNNDXADS1  4413 WEST RIVER TELECOMMUNICATIONS COOP. - ND 638      

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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