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: 526

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-526 A Stratford CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-526 0 Stratford CA FRSNCA01XOY  649C ONVOY, LLC - CA 728      
559-526 1 Stratford CA FRSNCA01XOY  649C ONVOY, LLC - CA 728      
559-526 2 Stratford CA FRSNCA0104Z  506J TWILIO INTERNATIONAL, INC. 728   2021-08-30   
559-526 5 Stratford CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2019-02-24   
559-526 6 Stratford CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2019-02-24   
559-526 8 Stratford CA FRSNCA01XUZ  624H ONVOY SPECTRUM, LLC 728   2024-01-03   
559-526 9 Stratford CA FRSNCA01TMD  939H COMMIO, LLC 728   2022-09-11   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.