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: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-571 A Park City UT SLKDUTYI3MD  3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
435-571 0 Park City UT   3231 LEVEL 3 COMMUNICATIONS, LLC - UT 660      
435-571 1 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 2 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 3 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 4 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 5 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 6 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 7 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 8 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   
435-571 9 Park City UT   6529 T-MOBILE USA, INC. 660   2010-04-13   

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

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