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: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-571 A Visalia CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-571 0 Visalia CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2015-08-20   
559-571 1 Visalia CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2016-05-26   
559-571 2 Visalia CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2016-08-27   
559-571 3 Visalia CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728   2016-05-28   
559-571 4 Visalia CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2024-03-23   
559-571 5 Visalia CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2024-05-23   
559-571 6 Visalia CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2024-07-23   
559-571 8 Visalia CA FRSNCA01XUZ  624H ONVOY SPECTRUM, LLC 728   2024-01-03   
559-571 9 Visalia CA   5562 METROPCS, INC. 728   2015-08-06   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.