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: 329

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-329 A Boulder UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-329 9 Boulder UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2023-03-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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