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: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-770 A Fontana CA ONTRCAFXDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
909-770 0 Fontana CA   6529 T-MOBILE USA, INC. 730   2003-03-26   
909-770 1 Fontana CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 730      
909-770 2 Fontana CA   899D METROPCS NETWORKS, LLC 730   2003-04-20   
909-770 3 Fontana CA   899D METROPCS NETWORKS, LLC 730   2003-04-20   
909-770 4 Fontana CA   899D METROPCS NETWORKS, LLC 730   2003-04-20   
909-770 5 Fontana CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2001-12-07   
909-770 6 Fontana CA   6529 T-MOBILE USA, INC. 730   2003-06-01   
909-770 7 Fontana CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2003-05-05   
909-770 8 Fontana CA   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2000-12-27   
909-770 9 Fontana CA   6529 T-MOBILE USA, INC. 730   2003-06-01   

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

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