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: 909 [Rate centres in NPA 909] [Dial plan for NPA 909]

NXX: 897

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-897 A Crestline CA LSANCA03JMD  506J TWILIO INTERNATIONAL INC 730   2020-12-30   
909-897 8 Crestline CA   506J TWILIO INTERNATIONAL INC 730   2020-11-23   
909-897 9 Crestline CA   6529 T-MOBILE USA, INC. 730   2020-11-24   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.