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: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-258 A Rialto CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-258 0 Rialto CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-09-21   
909-258 1 Rialto CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2010-01-07   
909-258 2 Rialto CA   793K TWC IP ENABLED SERVICES, LLC 730   2008-09-28   
909-258 3 Rialto CA   793K TWC IP ENABLED SERVICES, LLC 730   2008-10-01   
909-258 4 Rialto CA LNBHCAXPXQX  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-11-14   
909-258 5 Rialto CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2011-03-01   
909-258 6 Rialto CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-10-27   
909-258 7 Rialto CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-10-27   
909-258 8 Rialto CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2008-10-27   
909-258 9 Rialto CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2008-11-23   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.