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: 479

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-479 A Madera CA FRSOCAYM7MD  5562 METROPCS, INC. 728      
559-479 0 Madera CA FRSOCAYM7MD  5562 METROPCS, INC. 728      
559-479 1 Madera CA FRSOCAYM7MD  5562 METROPCS, INC. 728      
559-479 2 Madera CA FRSOCAYM7MD  5562 METROPCS, INC. 728      
559-479 3 Madera CA FRSOCAYM7MD  5562 METROPCS, INC. 728   2009-09-01   
559-479 4 Madera CA FRSNCA0103Z  318J COMCAST IP PHONE, LLC 728   2013-02-08   
559-479 5 Madera CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2008-06-12   
559-479 6 Madera CA FRSOCAYM7MD  6529 T-MOBILE USA, INC. 728      
559-479 7 Madera CA FRSOCAYM7MD  6529 T-MOBILE USA, INC. 728      
559-479 8 Madera CA FRSNCA0103Z  318J COMCAST IP PHONE, LLC 728   2008-06-27   
559-479 9 Madera CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2008-06-16   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.