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: 508

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-508 A Yuma AZ PHNXAZ28DS3  630E ONVOY, LLC - AZ 666      
928-508 0 Yuma AZ   939H COMMIO, LLC 666   2024-03-28   
928-508 1 Yuma AZ   939H COMMIO, LLC 666   2024-03-28   
928-508 2 Yuma AZ   630E ONVOY, LLC - AZ 666   2023-11-03   
928-508 3 Yuma AZ   6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2024-05-02   
928-508 4 Yuma AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-06-06   
928-508 5 Yuma AZ   710A ALLO COMMUNICATIONS, LLC - NE 666   2025-05-26   
928-508 6 Yuma AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2024-12-15   
928-508 7 Yuma AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2024-04-15   
928-508 8 Yuma AZ   939H COMMIO, LLC 666   2024-03-28   
928-508 9 Yuma AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2024-04-15   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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