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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-406 A Delta UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-406 0 Delta UT SLKEUT45DS0  5727 FIRSTDIGITAL TELECOM, LLC - UT 660   2015-01-05   
435-406 1 Delta UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      
435-406 2 Delta UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2021-04-14   
435-406 3 Delta UT WVCYUT14DS1  871E ONVOY, LLC - UT 660   2018-11-12   
435-406 4 Delta UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2006-07-07   
435-406 5 Delta UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2012-09-07   
435-406 6 Delta UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2007-12-13   
435-406 7 Delta UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660   2011-02-05   
435-406 8 Delta UT SLKEUT45DS0  5727 FIRSTDIGITAL TELECOM, LLC - UT 660   2015-01-05   
435-406 9 Delta UT SLKDUTBTAMD  6571 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 660      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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