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: 760 [Rate centres in NPA 760] [Dial plan for NPA 760]

NXX: 549

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
760-549 A Lake Isabella CA LKISCAXFRS1  4420 FRONTIER CALIFORNIA INC. 730      
760-549 0 Lake Isabella CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-07-10   
760-549 1 Lake Isabella CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2013-11-29   
760-549 2 Lake Isabella CA LKISCAXFRS1  4420 FRONTIER CALIFORNIA INC. 730      
760-549 3 Lake Isabella CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
760-549 4 Lake Isabella CA IRVECAEIDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730   2014-02-02   
760-549 5 Lake Isabella CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2013-11-29   
760-549 6 Lake Isabella CA SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2012-07-03   
760-549 7 Lake Isabella CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2008-08-29   
760-549 8 Lake Isabella CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2013-01-14   
760-549 9 Lake Isabella CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2013-04-29   

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.