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: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-407 A West Los Angeles CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
424-407 0 West Los Angeles CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-04-29   
424-407 1 West Los Angeles CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-12-29   
424-407 2 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2019-03-24   
424-407 3 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2019-03-24   
424-407 4 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2019-03-24   
424-407 5 West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2018-10-29   
424-407 6 West Los Angeles CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730   2018-10-29   
424-407 7 West Los Angeles CA LSANCAJW2MD  508J CENTURYLINK COMMUNICATIONS, LLC 730   2018-06-08   
424-407 8 West Los Angeles CA SNMNCAXPX3Z  649C ONVOY, LLC - CA 730   2019-03-24   
424-407 9 West Los Angeles CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730   2018-06-07   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.