Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 928 [Rate centres in NPA 928] [Dial plan for NPA 928]

NXX: 236

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-236 A Somerton AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
928-236 0 Somerton AZ   630E ONVOY, LLC - AZ 666   2016-04-11   
928-236 1 Somerton AZ   630E ONVOY, LLC - AZ 666   2016-04-11   
928-236 2 Somerton AZ   630E ONVOY, LLC - AZ 666   2016-04-22   
928-236 3 Somerton AZ   793K TWC IP ENABLED SERVICES, LLC 666   2016-06-02   
928-236 4 Somerton AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2018-03-26   
928-236 5 Somerton AZ   630E ONVOY, LLC - AZ 666   2017-06-19   
928-236 6 Somerton AZ   7217 TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 666   2016-04-12   
928-236 7 Somerton AZ   630E ONVOY, LLC - AZ 666   2016-04-22   
928-236 8 Somerton AZ   508J CENTURYLINK COMMUNICATIONS, LLC 666   2016-10-15   
928-236 9 Somerton AZ   630E ONVOY, LLC - AZ 666   2019-07-11   

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

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