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.

Oak Run, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
530-449 A   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-449 7   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2017-10-06   
530-472 A OKRNCAXFDS0  2342 CITIZENS TELECOM DBA FRONTIER COMM OF TOULUMNE 724      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.