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: GRDNCA02KMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-547 A Los Angeles: DA 01 CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-01-29   
213-562 A Los Angeles: DA 04 CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-08-20   
213-789 A Los Angeles: DA 02 CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-01-11   
310-565 A El Segundo CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
323-914 A Montebello CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
424-678 A El Segundo CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-06-04   
562-792 A Compton: Compton DA CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
657-526 A Anaheim CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-11-11   
661-581 A Palmdale: Palmdale DA CA 7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-12-17   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.