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: 680

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-680 A Richmond CA SNVACAHZ0MD  508J CENTURYLINK COMMUNICATIONS, LLC 722      
510-680 0 Richmond CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2013-08-30   
510-680 1 Richmond CA   649C ONVOY, LLC - CA 722   2013-11-25   
510-680 2 Richmond CA   649C ONVOY, LLC - CA 722   2013-11-25   
510-680 3 Richmond CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-03-24   
510-680 4 Richmond CA   5562 METROPCS, INC. 722   2014-11-05   
510-680 5 Richmond CA   516C AT&T CORP. 722   2013-11-04   
510-680 6 Richmond CA   6529 T-MOBILE USA, INC. 722   2014-01-03   
510-680 7 Richmond CA   508J CENTURYLINK COMMUNICATIONS, LLC 722   2013-07-29   
510-680 8 Richmond CA   6529 T-MOBILE USA, INC. 722   2013-10-22   
510-680 9 Richmond CA   6529 T-MOBILE USA, INC. 722   2013-07-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.