Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 527

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-527 A Terra Bella CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-527 0 Terra Bella CA FRSNCA01XOY  649C ONVOY, LLC - CA 728      
559-527 1 Terra Bella CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2020-04-07   
559-527 2 Terra Bella CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2019-02-24   
559-527 3 Terra Bella CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2024-10-16   
559-527 4 Terra Bella CA FRSNCA01XOY  649C ONVOY, LLC - CA 728      
559-527 5 Terra Bella CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2005-08-02   
559-527 6 Terra Bella CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2006-01-13   
559-527 7 Terra Bella CA FRSNCA0112Z  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728   2017-09-09   
559-527 8 Terra Bella CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2019-02-24   
559-527 9 Terra Bella CA FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2018-10-25   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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