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: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-788 A San Pedro CA LSANCAJWIMD  965H FRACTEL LLC 730      
424-788 0 San Pedro CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-788 1 San Pedro CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-788 2 San Pedro CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-788 3 San Pedro CA   197D VONAGE AMERICA LLC 730   2020-07-27   
424-788 4 San Pedro CA   649C ONVOY, LLC - CA 730   2021-07-12   
424-788 5 San Pedro CA   649C ONVOY, LLC - CA 730   2021-08-08   
424-788 6 San Pedro CA   197D VONAGE AMERICA LLC 730   2020-07-27   
424-788 7 San Pedro CA   506J TWILIO INTERNATIONAL INC 730   2020-10-20   
424-788 8 San Pedro CA   965H FRACTEL LLC 730   2020-07-26   
424-788 9 San Pedro CA   649C ONVOY, LLC - CA 730   2021-08-08   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.