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: 391

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
928-391 A Kingman AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666      
928-391 0 Kingman AZ PHNXAZ28VMD  073H TELNYX LLC 666   2021-02-21   
928-391 1 Kingman AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2021-03-08   
928-391 2 Kingman AZ PHNDAZ91DS5  3285 LEVEL 3 COMMUNICATIONS, LLC - AZ 666   2020-09-24   
928-391 3 Kingman AZ PHNXAZMAXQY  624H ONVOY SPECTRUM, LLC 666   2021-11-21   
928-391 4 Kingman AZ PHNXAZMAXQY  624H ONVOY SPECTRUM, LLC 666   2021-11-21   
928-391 5 Kingman AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2021-02-22   
928-391 6 Kingman AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2021-02-22   
928-391 7 Kingman AZ PHNZAZZJAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 666   2021-02-22   
928-391 8 Kingman AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2021-02-27   
928-391 9 Kingman AZ GLVYAZXC2MD  6529 T-MOBILE USA, INC. 666   2021-02-27   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.