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: 578

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-578 A Clovis CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728      
559-578 0 Clovis CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2016-11-01   
559-578 1 Clovis CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2021-08-13   
559-578 2 Clovis CA FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-06-28   
559-578 3 Clovis CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2015-07-26   
559-578 4 Clovis CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2015-07-26   
559-578 5 Clovis CA FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-07-23   
559-578 6 Clovis CA FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-07-23   
559-578 7 Clovis CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2015-08-19   
559-578 8 Clovis CA FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2016-09-15   
559-578 9 Clovis CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2021-08-13   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.