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: 242

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-242 A Mendota CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-242 0 Mendota CA   981E BANDWIDTH.COM CLEC, LLC - CA 728      
559-242 1 Mendota CA   649C ONVOY, LLC - CA 728   2019-07-18   
559-242 2 Mendota CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2004-07-16   
559-242 3 Mendota CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2016-09-19   
559-242 4 Mendota CA   649C ONVOY, LLC - CA 728      
559-242 5 Mendota CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2009-08-10   
559-242 6 Mendota CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2009-01-14   
559-242 7 Mendota CA   649C ONVOY, LLC - CA 728   2019-02-24   
559-242 8 Mendota CA   649C ONVOY, LLC - CA 728   2019-02-24   
559-242 9 Mendota CA   649C ONVOY, LLC - CA 728   2019-07-18   

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

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