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: 787

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-787 A Rialto CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2024-01-23   
909-787 0 Rialto CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-23   
909-787 1 Rialto CA   649C ONVOY, LLC - CA 730   2016-08-11   
909-787 2 Rialto CA   649C ONVOY, LLC - CA 730   2016-08-11   
909-787 3 Rialto CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-07-10   
909-787 4 Rialto CA   6529 T-MOBILE USA, INC. 730   2016-04-28   
909-787 5 Rialto CA   6529 T-MOBILE USA, INC. 730   2016-04-28   
909-787 6 Rialto CA   6529 T-MOBILE USA, INC. 730   2016-04-28   
909-787 7 Rialto CA   649C ONVOY, LLC - CA 730   2016-04-18   
909-787 8 Rialto CA   649C ONVOY, LLC - CA 730   2016-04-18   
909-787 9 Rialto CA   899D METROPCS NETWORKS, LLC 730   2016-08-18   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.