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: ANHMCA01X6Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
424-738 A Avalon CA 516C AT&T CORP. 730   2010-01-28   
805-918 A Saticoy CA 516C AT&T CORP. 730      
818-945 A Glendale CA 516C AT&T CORP. 730   2011-01-21   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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