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: 988

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-988 A Yuma AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
928-988 0 Yuma AZ   6529 T-MOBILE USA, INC. 666   2007-12-17   
928-988 1 Yuma AZ   6529 T-MOBILE USA, INC. 666   2007-12-17   
928-988 2 Yuma AZ   6529 T-MOBILE USA, INC. 666   2007-12-17   
928-988 3 Yuma AZ   6529 T-MOBILE USA, INC. 666   2021-11-22   
928-988 4 Yuma AZ   6529 T-MOBILE USA, INC. 666   2021-11-22   
928-988 5 Yuma AZ   6529 T-MOBILE USA, INC. 666   2021-11-22   
928-988 6 Yuma AZ   6529 T-MOBILE USA, INC. 666   2021-01-18   
928-988 7 Yuma AZ   6529 T-MOBILE USA, INC. 666   2021-01-18   
928-988 8 Yuma AZ   597F VOIP INNOVATIONS, LLC 666   2019-02-16   
928-988 9 Yuma AZ   579F PEERLESS NETWORK OF ARIZONA, LLC - AZ 666   2023-09-08   

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

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