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: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-228 A South San Francisco CA FRMTCAEDDS0  7262 XO CALIFORNIA, INC. 722      
650-228 0 South San Francisco CA   7262 XO CALIFORNIA, INC. 722      
650-228 1 South San Francisco CA   7262 XO CALIFORNIA, INC. 722      
650-228 2 South San Francisco CA   7262 XO CALIFORNIA, INC. 722      
650-228 3 South San Francisco CA   6529 T-MOBILE USA, INC. 722   2006-05-04   
650-228 4 South San Francisco CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-06-11   
650-228 5 South San Francisco CA   7262 XO CALIFORNIA, INC. 722      
650-228 6 South San Francisco CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2008-07-15   
650-228 7 South San Francisco CA   7262 XO CALIFORNIA, INC. 722      
650-228 8 South San Francisco CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2008-06-01   
650-228 9 South San Francisco CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2010-02-05   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.