Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 633

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-633 A Lemoore CA FRSNCAVVDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 728      
559-633 0 Lemoore CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2004-06-17   
559-633 1 Lemoore CA   649C ONVOY, LLC - CA 728   2009-12-06   
559-633 2 Lemoore CA   145J TERRA NOVA TELECOM INC. 728   2024-02-12   
559-633 3 Lemoore CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2015-01-26   
559-633 4 Lemoore CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 728      
559-633 5 Lemoore CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 728   2007-09-03   
559-633 6 Lemoore CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2016-07-01   
559-633 7 Lemoore CA   073H TELNYX LLC 728   2017-03-24   
559-633 8 Lemoore CA   318J COMCAST IP PHONE, LLC 728   2010-02-13   
559-633 9 Lemoore CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2014-07-18   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.