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: 487

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-487 A Park City UT SLKDUTHTDS1  7541 XO UTAH, INC. 660      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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