Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-820 9 Oakland: Trinidad DA CA 6529 T-MOBILE USA, INC. 722   2015-08-31   
510-822 A Oakland: Trinidad DA CA 6529 T-MOBILE USA, INC. 722      
510-822 4 Oakland: Trinidad DA CA 5562 METROPCS, INC. 722   2017-07-13   
510-822 9 Oakland: Trinidad DA CA 6529 T-MOBILE USA, INC. 722   2016-12-18   
510-823 A Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722      
510-823 1 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722   2021-01-01   
510-823 3 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722      
510-823 4 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722      
510-823 5 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722      
510-823 6 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722      
510-823 7 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722      
510-823 8 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722      
510-823 9 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722      
510-825 A Hayward CA 5562 METROPCS, INC. 722      
510-825 0 Hayward CA 5562 METROPCS, INC. 722      
510-825 1 Hayward CA 5562 METROPCS, INC. 722      
510-825 2 Hayward CA 5562 METROPCS, INC. 722      
510-825 3 Hayward CA 5562 METROPCS, INC. 722      
510-825 4 Hayward CA 5562 METROPCS, INC. 722      
510-825 5 Hayward CA 5562 METROPCS, INC. 722      
510-825 6 Hayward CA 5562 METROPCS, INC. 722      
510-825 7 Hayward CA 5562 METROPCS, INC. 722      
510-825 8 Hayward CA 5562 METROPCS, INC. 722      
510-825 9 Hayward CA 5562 METROPCS, INC. 722      
510-826 7 Hayward CA 6529 T-MOBILE USA, INC. 722   2017-04-06   
510-826 8 Hayward CA 6529 T-MOBILE USA, INC. 722   2017-04-06   
510-827 A Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722      
510-827 0 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722   2006-04-06   
510-827 2 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722   2007-04-05   
510-827 3 Oakland: Main-Piedmont DA CA 6529 T-MOBILE USA, INC. 722   2008-02-14   
510-827 5 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-16   
510-827 6 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-16   
510-827 7 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-16   
510-827 8 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-16   
510-827 9 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-16   
510-829 A Richmond CA 5562 METROPCS, INC. 722      
510-829 1 Richmond CA 5562 METROPCS, INC. 722   2015-04-21   
510-829 3 Richmond CA 5562 METROPCS, INC. 722   2015-04-21   
510-829 6 Richmond CA 5562 METROPCS, INC. 722   2014-10-09   
510-829 7 Richmond CA 5562 METROPCS, INC. 722   2014-10-09   
510-829 8 Richmond CA 5562 METROPCS, INC. 722   2014-10-09   
510-829 9 Richmond CA 5562 METROPCS, INC. 722   2014-10-02   
510-830 5 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-17   
510-830 6 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-17   
510-830 7 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-17   
510-830 8 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-17   
510-830 9 Oakland: Main-Piedmont DA CA 5562 METROPCS, INC. 722   2002-12-17   
510-833 1 Oakland: Berkeley DA CA 6529 T-MOBILE USA, INC. 722   2015-08-28   
510-833 4 Oakland: Berkeley DA CA 6529 T-MOBILE USA, INC. 722   2015-08-28   
510-833 5 Oakland: Berkeley DA CA 6529 T-MOBILE USA, INC. 722   2015-08-28   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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