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: 763

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-763 A Huron CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-763 0 Huron CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-763 1 Huron CA   624H ONVOY SPECTRUM, LLC 728   2021-11-01   
559-763 2 Huron CA   624H ONVOY SPECTRUM, LLC 728   2021-11-01   
559-763 3 Huron CA   624H ONVOY SPECTRUM, LLC 728   2021-11-01   
559-763 4 Huron CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2005-01-07   
559-763 5 Huron CA   624H ONVOY SPECTRUM, LLC 728   2021-11-01   
559-763 6 Huron CA   516C AT&T CORP. 728   2010-10-27   
559-763 7 Huron CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 728   2012-06-25   
559-763 9 Huron CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2013-11-08   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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