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: 213 [Rate centres in NPA 213] [Dial plan for NPA 213]

NXX: 971

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
213-971 A Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730      
213-971 0 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2025-11-28   
213-971 1 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2025-11-28   
213-971 2 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2025-11-28   
213-971 3 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2025-11-28   
213-971 4 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2026-02-20   
213-971 7 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2026-03-26   
213-971 8 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2026-03-26   
213-971 9 Los Angeles: DA 09 CA   649C ONVOY, LLC - CA 730   2026-03-26   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.