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: 343

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-343 A Stratford CA FRSNCA01XBZ  7610 COMCAST PHONE OF CALIFORNIA, LLC - CA 728      
559-343 0 Stratford CA FRSNCA01XOY  649C ONVOY, LLC - CA 728      
559-343 1 Stratford CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2011-06-24   
559-343 2 Stratford CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2012-12-28   
559-343 3 Stratford CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2010-03-04   
559-343 4 Stratford CA   318J COMCAST IP PHONE LLC 728   2006-09-30   
559-343 5 Stratford CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2013-03-17   
559-343 6 Stratford CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2014-07-18   
559-343 7 Stratford CA FRSNCA01XMZ  073H TELNYX LLC 728   2018-07-10   
559-343 8 Stratford CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2015-08-14   
559-343 9 Stratford CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2017-02-24   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.