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: 677

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-677 A Badger CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-677 0 Badger CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-677 1 Badger CA   073H TELNYX LLC 728   2018-07-10   
559-677 2 Badger CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728      
559-677 3 Badger CA   9262 UTILITY TELECOM GROUP, LLC - CA 728      
559-677 4 Badger CA   649C ONVOY, LLC - CA 728   2021-08-13   
559-677 5 Badger CA   624H ONVOY SPECTRUM, LLC 728   2025-02-08   
559-677 6 Badger CA   649C ONVOY, LLC - CA 728   2020-12-01   
559-677 7 Badger CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2009-02-24   
559-677 8 Badger CA   649C ONVOY, LLC - CA 728   2020-12-01   

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

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