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

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
738-444 5   649C ONVOY, LLC - CA 730   2026-08-21   
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   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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