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: 357

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
424-357 A Beverly Hills CA LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
424-357 0 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 1 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 2 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 3 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 4 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 5 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 6 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 7 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 8 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   
424-357 9 Beverly Hills CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2014-10-05   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.