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: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-423 A Lemoore CA   515J IP HORIZON LLC 728      
559-423 0 Lemoore CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2010-10-28   
559-423 1 Lemoore CA   515J IP HORIZON LLC 728      
559-423 2 Lemoore CA   515J IP HORIZON LLC 728      
559-423 3 Lemoore CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2014-08-09   
559-423 4 Lemoore CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2020-06-19   
559-423 5 Lemoore CA   318J COMCAST IP PHONE, LLC 728   2006-09-30   
559-423 6 Lemoore CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728   2004-11-14   
559-423 7 Lemoore CA   649C ONVOY, LLC - CA 728   2013-03-16   
559-423 8 Lemoore CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2008-08-14   
559-423 9 Lemoore CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 728   2013-12-20   

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

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