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]


NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-420 A Fresno CA FRSNCA011KD  7379 MATRIX TELECOM, LLC. SII TNCI - CA 728      
559-420 0 Fresno CA   649C ONVOY, LLC - CA 728      
559-420 7 Fresno CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2010-03-19   
559-420 8 Fresno CA   6664 SPRINT SPECTRUM L.P. 728   2009-07-02   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.