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: LSAJCAWZDS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-258 A Los Angeles: DA 01 CA 3662 PACIFIC CENTREX SERVICES, INC. - CA 730   2004-06-27   
323-472 A Los Angeles: DA 14 CA 3662 PACIFIC CENTREX SERVICES, INC. - CA 730      
818-670 A Van Nuys CA 3662 PACIFIC CENTREX SERVICES, INC. - CA 730      
818-824 A North Hollywood CA 3662 PACIFIC CENTREX SERVICES, INC. - CA 730   2005-12-26   

Last updated: Sat, 08 Jun 2019 01:52:21 UTC

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