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.

Switch: FRMTCAEDDS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-604 A Sunnyvale CA 7262 XO CALIFORNIA, INC. 722   2012-03-10   
408-614 A Campbell CA 7262 XO CALIFORNIA, INC. 722   2012-07-08   
408-673 A San Jose: West DA CA 7262 XO CALIFORNIA, INC. 722   2010-05-15   
408-753 A San Jose: West DA CA 7262 XO CALIFORNIA, INC. 722   2010-09-17   
408-786 A San Jose: North DA CA 7262 XO CALIFORNIA, INC. 722   2005-07-23   
415-590 A San Francisco: Central DA CA 7262 XO CALIFORNIA, INC. 722   2012-05-06   
415-603 A San Francisco: Central DA CA 7262 XO CALIFORNIA, INC. 722   2012-05-07   
415-815 A San Francisco: Central DA CA 7262 XO CALIFORNIA, INC. 722   2011-01-24   
510-948 A Hercules-Rodeo CA 7262 XO CALIFORNIA, INC. 722   2004-10-11   
707-397 A Mendocino CA 7262 XO CALIFORNIA, INC. 722   2007-06-14   
925-290 A Livermore CA 7262 XO CALIFORNIA, INC. 722      

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

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