Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 928 [Rate centres in NPA 928] [Dial plan for NPA 928]

NXX: 588

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-588 A Wickenburg AZ PHNZAZ87PS0  7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      
928-588 0 Wickenburg AZ   073H TELNYX LLC 666   2020-12-26   
928-588 1 Wickenburg AZ   630E ONVOY, LLC - AZ 666   2021-07-05   
928-588 2 Wickenburg AZ   630E ONVOY, LLC - AZ 666   2021-07-05   
928-588 3 Wickenburg AZ   587F BANDWIDTH.COM CLEC, LLC - AZ 666   2020-05-11   
928-588 4 Wickenburg AZ   630E ONVOY, LLC - AZ 666   2021-01-15   
928-588 5 Wickenburg AZ   630E ONVOY, LLC - AZ 666   2021-01-15   
928-588 6 Wickenburg AZ   630E ONVOY, LLC - AZ 666   2021-01-15   
928-588 7 Wickenburg AZ   630E ONVOY, LLC - AZ 666   2021-01-15   
928-588 8 Wickenburg AZ   6529 T-MOBILE USA, INC. 666   2022-02-18   
928-588 9 Wickenburg AZ   7175 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 666      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.