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: 977

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-977 A Yuma AZ PHNXAZ19AMD  965H FRACTEL, LLC 666      
928-977 0 Yuma AZ   6010 NEW CINGULAR WIRELESS PCS, LLC 666   2025-06-06   
928-977 1 Yuma AZ   939H COMMIO, LLC 666   2021-09-03   
928-977 2 Yuma AZ   3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2020-08-16   
928-977 3 Yuma AZ   939H COMMIO, LLC 666   2021-09-03   
928-977 4 Yuma AZ   939H COMMIO, LLC 666   2021-09-03   
928-977 5 Yuma AZ   939H COMMIO, LLC 666   2021-09-03   
928-977 6 Yuma AZ   6529 T-MOBILE USA, INC. 666   2022-02-07   
928-977 7 Yuma AZ   965H FRACTEL, LLC 666   2020-08-01   
928-977 8 Yuma AZ   630E ONVOY, LLC - AZ 666   2020-12-03   
928-977 9 Yuma AZ   630E ONVOY, LLC - AZ 666   2020-12-03   

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

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