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: 943

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-943 A Del Rey CA FRSNCA01XGZ  7262 XO CALIFORNIA, INC. 728      
559-943 0 Del Rey CA   6529 T-MOBILE USA, INC. 728      
559-943 1 Del Rey CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2005-02-17   
559-943 2 Del Rey CA   7262 XO CALIFORNIA, INC. 728   2014-12-06   
559-943 3 Del Rey CA   6529 T-MOBILE USA, INC. 728   2015-03-02   
559-943 4 Del Rey CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2004-04-10   
559-943 5 Del Rey CA   6529 T-MOBILE USA, INC. 728   2015-03-02   
559-943 6 Del Rey CA   6529 T-MOBILE USA, INC. 728   2015-03-02   
559-943 7 Del Rey CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2009-02-24   
559-943 8 Del Rey CA   6529 T-MOBILE USA, INC. 728   2022-05-27   
559-943 9 Del Rey CA   073H TELNYX LLC 728   2017-03-24   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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