Local Calling Guide

Area code/prefix search

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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 904

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-904 A Oakland: Trinidad DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-904 0 Oakland: Trinidad DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-904 1 Oakland: Trinidad DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2021-03-29   
510-904 2 Oakland: Trinidad DA CA OKLECAZV1MD  5562 METROPCS, INC. 722   2008-09-11   
510-904 3 Oakland: Trinidad DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-904 4 Oakland: Trinidad DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-06-15   
510-904 5 Oakland: Trinidad DA CA SNRTCAHFDS0  433E SONIC TELECOM, LLC - CA 722   2021-09-15   
510-904 6 Oakland: Trinidad DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
510-904 7 Oakland: Trinidad DA CA OKLECAZV1MD  5562 METROPCS, INC. 722   2008-09-11   
510-904 8 Oakland: Trinidad DA CA OKLECAZV1MD  5562 METROPCS, INC. 722   2008-09-11   
510-904 9 Oakland: Trinidad DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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