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: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 792

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-792 A Porterville CA FRSNCA01XOY  649C ONVOY, LLC - CA 728      
559-792 1 Porterville CA FRSNCA01XOY  649C ONVOY, LLC - CA 728      
559-792 2 Porterville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2021-04-19   
559-792 3 Porterville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2021-04-19   
559-792 4 Porterville CA   508J CENTURYLINK COMMUNICATIONS LLC 728   2014-12-16   
559-792 5 Porterville CA FRSOCAYM6MD  5562 METRO PCS, INC. 728   2016-10-22   
559-792 6 Porterville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2021-04-19   
559-792 7 Porterville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2021-04-19   
559-792 8 Porterville CA FRSNCA72DMD  6664 SPRINT SPECTRUM L.P. 728   2012-02-23   
559-792 9 Porterville CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2021-04-19   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.