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: 642

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-642 A Fontana CA TRNECAGB7MD  6529 T-MOBILE USA, INC. 730      
909-642 0 Fontana CA   6529 T-MOBILE USA, INC. 730   2015-02-28   
909-642 1 Fontana CA   6529 T-MOBILE USA, INC. 730   2015-02-28   
909-642 2 Fontana CA   6529 T-MOBILE USA, INC. 730   2018-12-01   
909-642 3 Fontana CA   6529 T-MOBILE USA, INC. 730   2015-01-17   
909-642 4 Fontana CA   6529 T-MOBILE USA, INC. 730   2015-01-17   
909-642 5 Fontana CA   6529 T-MOBILE USA, INC. 730   2015-01-17   
909-642 6 Fontana CA   6529 T-MOBILE USA, INC. 730   2014-12-19   
909-642 7 Fontana CA   6529 T-MOBILE USA, INC. 730   2014-12-19   
909-642 8 Fontana CA   6529 T-MOBILE USA, INC. 730   2014-11-17   
909-642 9 Fontana CA   6529 T-MOBILE USA, INC. 730   2014-11-17   

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

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