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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-310 A Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2024-01-23   
909-310 0 Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2016-06-18   
909-310 1 Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2016-06-18   
909-310 2 Chino CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-21   
909-310 3 Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2016-07-31   
909-310 4 Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2016-07-31   
909-310 5 Chino CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-10-29   
909-310 6 Chino CA   793K TWC IP ENABLED SERVICES, LLC 730   2017-08-25   
909-310 7 Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2016-06-10   
909-310 8 Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2016-06-10   
909-310 9 Chino CA COVNCAXFX3Y  649C ONVOY, LLC - CA 730   2022-08-21   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.