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: LSANCAJW9MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
626-556 A Alhambra CA 819H BLUIP, INC. 730      
626-556 1 Alhambra CA 819H BLUIP, INC. 730   2020-01-03   
747-270 A Glendale CA 819H BLUIP, INC. 730      
747-270 1 Glendale CA 819H BLUIP, INC. 730   2018-03-28   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.