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: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-221 A Beaver UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-221 0 Beaver UT   6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-221 1 Beaver UT   145J TERRA NOVA TELECOM INC. 660   2026-01-11   
435-221 4 Beaver UT   624H ONVOY SPECTRUM, LLC 660   2024-10-15   
435-221 6 Beaver UT   526H PEERLESS NETWORK OF UTAH, LLC - UT 660   2024-03-18   
435-221 8 Beaver UT   624H ONVOY SPECTRUM, LLC 660   2024-10-15   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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