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: 939

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-939 A Running Springs CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
909-939 0 Running Springs CA HSPRCABB0MD  776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2005-03-01   
909-939 1 Running Springs CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2006-10-03   
909-939 2 Running Springs CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-04-29   
909-939 3 Running Springs CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-04-29   
909-939 4 Running Springs CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2003-05-03   
909-939 5 Running Springs CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2013-03-29   
909-939 6 Running Springs CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-09-02   
909-939 7 Running Springs CA IRVECAEIDS2  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 730   2007-05-15   
909-939 8 Running Springs CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2008-11-17   
909-939 9 Running Springs CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2012-02-24   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.