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: 500

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
435-500 A Delta UT WVCYUT14DS1  871E ONVOY, LLC - UT 660      
435-500 0 Delta UT   871E ONVOY, LLC - UT 660   2019-05-30   
435-500 1 Delta UT   791D CENTRAL TELCOM SVCS DBA CENTRACOM INTERACTIVE - NV 660   2019-10-12   
435-500 2 Delta UT   871E ONVOY, LLC - UT 660   2019-05-30   
435-500 3 Delta UT   871E ONVOY, LLC - UT 660   2020-12-20   
435-500 4 Delta UT   871E ONVOY, LLC - UT 660   2020-12-20   
435-500 5 Delta UT   871E ONVOY, LLC - UT 660   2020-09-10   
435-500 6 Delta UT   871E ONVOY, LLC - UT 660   2020-09-10   
435-500 7 Delta UT   7530 TELEPORT COMMUNICATIONS AMERICA, LLC - UT 660   2020-11-16   
435-500 8 Delta UT   624H ONVOY SPECTRUM, LLC 660   2021-07-23   
435-500 9 Delta UT   073H TELNYX LLC 660   2021-02-11   

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

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