Local Calling Guide

Area code/prefix search

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Columbus, NE

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
531-400 8   624H ONVOY SPECTRUM, LLC 644   2021-07-18   
531-400 9   073H TELNYX LLC 644   2022-03-01   

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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