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: 206

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-206 A Logan UT SLKCUTMAXWX  6630 USA MOBILITY WIRELESS, INC. 660   2024-02-06  2025-11-17 

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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