Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 383

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-383 A Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-383 0 Oakland: Trinidad DA CA   5562 METROPCS, INC. 722   2008-12-07   
510-383 1 Oakland: Trinidad DA CA   9740 PACIFIC BELL 722      
510-383 2 Oakland: Trinidad DA CA   9740 PACIFIC BELL 722      
510-383 3 Oakland: Trinidad DA CA   9740 PACIFIC BELL 722      
510-383 4 Oakland: Trinidad DA CA   9740 PACIFIC BELL 722      
510-383 5 Oakland: Trinidad DA CA   9740 PACIFIC BELL 722      
510-383 6 Oakland: Trinidad DA CA   6529 T-MOBILE USA, INC. 722   2007-09-01   
510-383 7 Oakland: Trinidad DA CA   624H ONVOY SPECTRUM, LLC 722   2022-04-19   
510-383 8 Oakland: Trinidad DA CA   9740 PACIFIC BELL 722      
510-383 9 Oakland: Trinidad DA CA   9740 PACIFIC BELL 722      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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