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: 418

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-418 A Huron CA   515J IP HORIZON LLC 728      
559-418 0 Huron CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2014-02-17   
559-418 1 Huron CA FRSNCA0102Z  515J IP HORIZON LLC 728      
559-418 2 Huron CA FRSNCA0102Z  515J IP HORIZON LLC 728      
559-418 3 Huron CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2013-03-15   
559-418 4 Huron CA FRSNCA01XMZ  073H TELNYX LLC 728   2018-07-10   
559-418 5 Huron CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2015-05-03   
559-418 6 Huron CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2021-07-22   
559-418 7 Huron CA FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2024-02-17   
559-418 8 Huron CA   515J IP HORIZON LLC 728   2022-10-20   
559-418 9 Huron CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2021-08-13   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.