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: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-639 A Colton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2024-01-23   
909-639 0 Colton CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-03-23   
909-639 1 Colton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-01-06   
909-639 2 Colton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-01-06   
909-639 3 Colton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-04-23   
909-639 4 Colton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-04-23   
909-639 5 Colton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-03-04   
909-639 6 Colton CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-03-04   
909-639 7 Colton CA   793K TWC IP ENABLED SERVICES, LLC 730   2016-06-10   
909-639 8 Colton CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-08-20   
909-639 9 Colton CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730   2016-11-04   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.