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.

Switch: LSANCAJWDS8

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-373 3 Los Angeles: DA 07 CA 981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-07-24   
213-373 4 Los Angeles: DA 07 CA 981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-07-24   
213-373 8 Los Angeles: DA 07 CA 981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-08-27   
818-444 A Canoga Park CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.