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: 424 [Rate centres in NPA 424] [Dial plan for NPA 424]

NXX: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-501 A Culver City CA LSANCARCD3S  649C ONVOY, LLC - CA 730      
424-501 0 Culver City CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-04-16   
424-501 1 Culver City CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-04-16   
424-501 2 Culver City CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2017-06-11   
424-501 3 Culver City CA LSANCAJW6MD  073H TELNYX LLC 730   2017-06-02   
424-501 4 Culver City CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-04-02   
424-501 5 Culver City CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-04-02   
424-501 6 Culver City CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2018-04-02   
424-501 7 Culver City CA LNBHCAAXDS0  707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-04   
424-501 8 Culver City CA SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2018-11-09   
424-501 9 Culver City CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-04-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.