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: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 273

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-273 A Sunland-Tujunga CA SPLVCAXFDS1  2319 FRONTIER CALIFORNIA INC. 730      
818-273 0 Sunland-Tujunga CA   222H LOCAL ACCESS SERVICES LLC - CA 730   2015-09-20   
818-273 1 Sunland-Tujunga CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-09-19   
818-273 2 Sunland-Tujunga CA   2319 FRONTIER CALIFORNIA INC. 730      
818-273 3 Sunland-Tujunga CA   9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-06-20   
818-273 4 Sunland-Tujunga CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-03-13   
818-273 5 Sunland-Tujunga CA   649C ONVOY, LLC - CA 730   2007-01-11   
818-273 6 Sunland-Tujunga CA   649C ONVOY, LLC - CA 730   2008-07-30   
818-273 7 Sunland-Tujunga CA   649C ONVOY, LLC - CA 730   2008-05-31   
818-273 8 Sunland-Tujunga CA   7453 U.S. TELEPACIFIC CORP. - CA 730   2002-08-12   
818-273 9 Sunland-Tujunga CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2008-12-19   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.