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: 323

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-323 A Park Valley UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-323 3 Park Valley UT   145J TERRA NOVA TELECOM INC. 660   2025-07-10   
435-323 7 Park Valley UT SLKCUT26DMD  516J TON80 COMMUNICATIONS, LLC 660   2022-04-04   
435-323 9 Park Valley UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660   2021-12-27   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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