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: SNFCCA01PS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-755 A San Jose: West DA CA 206C CBEYOND COMMUNICATIONS, LLC - CA 722   2011-06-10   
415-471 A San Francisco: Central DA CA 206C CBEYOND COMMUNICATIONS, LLC - CA 722   2011-12-02   
415-625 A San Francisco: Central DA CA 206C CBEYOND COMMUNICATIONS, LLC - CA 722      
415-684 A San Francisco: Central DA CA 206C CBEYOND COMMUNICATIONS, LLC - CA 722   2007-09-01   

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

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