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: 408

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-408 A Ontario CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-408 0 Ontario CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2017-09-18   
909-408 1 Ontario CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2017-09-25   
909-408 2 Ontario CA   026K BARR TELL USA, LLC 730   2022-08-08   
909-408 3 Ontario CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-22   
909-408 4 Ontario CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-22   
909-408 5 Ontario CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-22   
909-408 6 Ontario CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-12-02   
909-408 7 Ontario CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2017-09-25   
909-408 8 Ontario CA ONTRCAXPXQY  793K TWC IP ENABLED SERVICES, LLC 730   2017-11-28   
909-408 9 Ontario CA RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2017-09-18   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.