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.

Los Angeles: DA 12, CA

<< 1 2 3 4 5

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
738-444 6   649C ONVOY, LLC - CA 730   2026-08-21   
738-444 7   114J EXIANT COMMUNICATIONS LLC 730   2026-04-23   
738-444 8 LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-23   
738-444 9   649C ONVOY, LLC - CA 730   2026-08-21   

<< 1 2 3 4 5

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.