Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 OKLECAZVGT0  5562 METROPCS, INC. 722   2008-12-07   
510-383 1 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-383 2 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-383 3 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-383 4 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-383 5 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-383 6 Oakland: Trinidad DA CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2007-09-01   
510-383 7 Oakland: Trinidad DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2022-04-19   
510-383 8 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      
510-383 9 Oakland: Trinidad DA CA OKLDCA12DS0  9740 PACIFIC BELL 722      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.