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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-859 A Oakland: Berkeley DA CA SNJUCA10DS0  8322 MPOWER COMMUNICATIONS CORP - CA 722      
510-859 0 Oakland: Berkeley DA CA   8322 MPOWER COMMUNICATIONS CORP - CA 722      
510-859 1 Oakland: Berkeley DA CA   7453 U.S. TELEPACIFIC CORP. - CA 722      
510-859 2 Oakland: Berkeley DA CA   8322 MPOWER COMMUNICATIONS CORP - CA 722      
510-859 3 Oakland: Berkeley DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-20   
510-859 4 Oakland: Berkeley DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-20   
510-859 5 Oakland: Berkeley DA CA   6529 T-MOBILE USA, INC. 722   2007-08-11   
510-859 6 Oakland: Berkeley DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2012-07-03   
510-859 7 Oakland: Berkeley DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-02-27   
510-859 8 Oakland: Berkeley DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2011-05-07   
510-859 9 Oakland: Berkeley DA CA   8322 MPOWER COMMUNICATIONS CORP - CA 722      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.