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: 461

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-461 A Sequoia CA   515J IP HORIZON LLC 728      
559-461 0 Sequoia CA FRSNCA0102Z  515J IP HORIZON LLC 728      
559-461 1 Sequoia CA FRSNCA0102Z  515J IP HORIZON LLC 728      
559-461 2 Sequoia CA FRSNCA0102Z  515J IP HORIZON LLC 728      
559-461 3 Sequoia CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2013-03-17   
559-461 4 Sequoia CA   515J IP HORIZON LLC 728   2022-10-20   
559-461 5 Sequoia CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2015-06-11   
559-461 6 Sequoia CA   515J IP HORIZON LLC 728   2022-10-20   
559-461 7 Sequoia CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2012-12-28   
559-461 8 Sequoia CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2016-09-24   
559-461 9 Sequoia CA FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2013-12-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.