Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 452F ONVOY, LLC - ND

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
701-999 5 Belfield ND BSMRNDBCSMD  638   2020-12-11   
701-999 6 Belfield ND BSMRNDBCSMD  638   2020-08-20   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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