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: 250

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-250 A Redlands CA   516C AT&T CORP. 730   2026-01-06   
909-250 0 Redlands CA   649C ONVOY, LLC - CA 730   2026-02-23   
909-250 7 Redlands CA   516C AT&T CORP. 730   2026-01-06   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.