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: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-550 A Fontana CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
909-550 0 Fontana CA   649C ONVOY, LLC - CA 730   2016-08-26   
909-550 1 Fontana CA   649C ONVOY, LLC - CA 730   2016-08-26   
909-550 2 Fontana CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-08-26   
909-550 3 Fontana CA   899D METROPCS NETWORKS, LLC 730   2016-09-17   
909-550 4 Fontana CA   649C ONVOY, LLC - CA 730   2016-10-01   
909-550 5 Fontana CA   649C ONVOY, LLC - CA 730   2016-10-01   
909-550 6 Fontana CA   649C ONVOY, LLC - CA 730   2016-10-01   
909-550 7 Fontana CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2016-09-23   
909-550 8 Fontana CA   6529 T-MOBILE USA, INC. 730   2016-08-25   
909-550 9 Fontana CA   6529 T-MOBILE USA, INC. 730   2016-08-25   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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