Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 909 [Rate centres in NPA 909] [Dial plan for NPA 909]

NXX: 509

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-509 A Ontario CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-509 0 Ontario CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-03-12   
909-509 1 Ontario CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-03-12   
909-509 2 Ontario CA   6529 T-MOBILE USA, INC. 730   2006-09-13   
909-509 3 Ontario CA   776C CHARTER FIBERLINK CA-CCO, LLC - CA 730   2006-03-13   
909-509 4 Ontario CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-04-13   
909-509 5 Ontario CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-04-13   
909-509 6 Ontario CA   6529 T-MOBILE USA, INC. 730   2006-04-21   
909-509 7 Ontario CA   9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-05-01   
909-509 8 Ontario CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2006-09-15   
909-509 9 Ontario CA   899D METROPCS NETWORKS, LLC 730   2010-03-21   

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

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