Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Altamont, UT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
435-408 A   1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 660   2026-06-26   
435-454 A VRNLUTMADS0  2287 UBTA-UBET COMMUNICATIONS, INC. DBA STRATA NETWORKS 660      

Last updated: Sun, 17 May 2026 03:26:51 UTC

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