Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 403

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-403 A Caruthers CA FRSOCAYM7MD  6529 T-MOBILE USA, INC. 728      
559-403 0 Caruthers CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2010-08-28   
559-403 1 Caruthers CA   515J IP HORIZON LLC 728      
559-403 2 Caruthers CA   515J IP HORIZON LLC 728      
559-403 3 Caruthers CA   6529 T-MOBILE USA, INC. 728   2011-08-15   
559-403 4 Caruthers CA   6529 T-MOBILE USA, INC. 728   2015-03-30   
559-403 5 Caruthers CA   6529 T-MOBILE USA, INC. 728   2014-03-31   
559-403 6 Caruthers CA   6529 T-MOBILE USA, INC. 728   2007-08-12   
559-403 7 Caruthers CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728   2014-08-16   
559-403 8 Caruthers CA   6529 T-MOBILE USA, INC. 728   2007-05-03   
559-403 9 Caruthers CA   6529 T-MOBILE USA, INC. 728   2008-12-15   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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