Local Calling Guide

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NPA: 435 [Rate centres in NPA 435] [Dial plan for NPA 435]

NXX: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-631 A Park City UT SLKCUTJC4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-631 0 Park City UT   6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-631 1 Park City UT   6010 NEW CINGULAR WIRELESS PCS, LLC 660      
435-631 2 Park City UT   117F BANDWIDTH.COM CLEC, LLC - UT 660   2011-08-26   
435-631 3 Park City UT   5727 FIRSTDIGITAL TELECOM, LLC - UT 660   2012-01-06   
435-631 4 Park City UT   6529 T-MOBILE USA, INC. 660   2011-02-04   
435-631 5 Park City UT   6529 T-MOBILE USA, INC. 660   2011-02-04   
435-631 6 Park City UT   6529 T-MOBILE USA, INC. 660   2011-02-04   
435-631 7 Park City UT   6529 T-MOBILE USA, INC. 660   2011-02-04   
435-631 8 Park City UT   5727 FIRSTDIGITAL TELECOM, LLC - UT 660   2012-01-06   
435-631 9 Park City UT   117F BANDWIDTH.COM CLEC, LLC - UT 660   2014-12-19   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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