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: 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 OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2021-03-29   
510-904 2 Oakland: Trinidad DA CA OKLECAZVGT0  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 OKLECAZVGT0  5562 METROPCS, INC. 722   2008-09-11   
510-904 8 Oakland: Trinidad DA CA OKLECAZVGT0  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, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.