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
213-768 A Los Angeles: DA 06 CA 939H COMMIO, LLC 730   2024-02-23   
213-771 A Los Angeles: DA 08 CA 939H COMMIO, LLC 730   2024-02-23   
213-878 A Los Angeles: DA 01 CA 939H COMMIO, LLC 730      
424-459 A Hawthorne CA 939H COMMIO, LLC 730      
424-461 A Lomita CA 939H COMMIO, LLC 730      
442-328 A Lone Pine CA 939H COMMIO, LLC 730      
562-575 A Alamitos CA 939H COMMIO, LLC 730      
562-723 A Lakewood CA 939H COMMIO, LLC 730   2024-03-02   
626-591 A Covina-Baldwin Park CA 939H COMMIO, LLC 730      
626-724 A Alhambra CA 939H COMMIO, LLC 730   2024-03-02   
626-735 A La Puente CA 939H COMMIO, LLC 730   2024-03-02   
657-525 A Fullerton CA 939H COMMIO, LLC 730      
657-671 A Brea CA 939H COMMIO, LLC 730      
657-713 A Santa Ana CA 939H COMMIO, LLC 730   2024-03-03   
760-287 A Fort Irwin CA 939H COMMIO, LLC 730      
805-997 A Ojai CA 939H COMMIO, LLC 730      
818-412 A Van Nuys CA 939H COMMIO, LLC 730   2024-03-03   
820-219 A Conejo CA 939H COMMIO, LLC 730      
820-220 A Piru CA 939H COMMIO, LLC 730      
840-235 A Colton CA 939H COMMIO, LLC 730      
951-645 A Lakeview-Nuevo CA 939H COMMIO, LLC 730      
951-646 A Temescal Canyon CA 939H COMMIO, LLC 730      
951-717 A Riverside CA 939H COMMIO, LLC 730   2024-03-02   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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