Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 435 [Rate centres in NPA 435] [Dial plan for NPA 435]

NXX: 417

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-417 A Nephi UT WVCYUT14DS1  871E ONVOY, LLC - UT 660      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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