Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
435-329 A SLKCUTJCGT1  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-329 9 SLKCUTJCGT1  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2023-03-13   
435-335 A PNGTUTXCDS1  2286 SOUTH CENTRAL UTAH TEL. ASSN., INC. 660      

Last updated: Fri, 28 Jun 2024 03:14:50 UTC

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