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: 525

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-525 A San Joaquin CA FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728      
559-525 3 San Joaquin CA SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2021-07-22   
559-525 6 San Joaquin CA SNGRCAXFWMD  649C ONVOY, LLC - CA 728   2021-07-22   
559-525 7 San Joaquin CA FRSNCA01XMZ  073H TELNYX LLC 728   2018-06-27   
559-525 8 San Joaquin CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2025-04-17   
559-525 9 San Joaquin CA FRSNCA01DS5  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2013-11-08   

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

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