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: LSANCAJW7MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-878 A Los Angeles: DA 01 CA 939H COMMIO LLC 730      
424-459 A Hawthorne CA 939H COMMIO LLC 730   2021-11-25   
424-461 A Lomita CA 939H COMMIO LLC 730   2021-11-25   
562-575 A Alamitos CA 939H COMMIO LLC 730   2021-11-25   
626-591 A Covina-Baldwin Park CA 939H COMMIO LLC 730   2021-11-25   
657-525 A Fullerton CA 939H COMMIO LLC 730   2021-11-25   

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

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