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.

OCN: 7262 XO CALIFORNIA, INC.

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
510-447 2 Richmond CA FRMTCAEDDS2  722   2012-02-15   
510-473 3 Oakland: Alameda DA CA FRMTCAEDDS2  722   2007-07-09   
510-474 3 Fremont-Newark: Greenleaf DA CA FRMTCAEDDS2  722   2010-12-22   
510-474 4 Fremont-Newark: Greenleaf DA CA FRMTCAEDDS2  722   2010-12-22   
510-496 3 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2012-07-20   
510-496 4 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2012-07-20   
510-509 3 Fremont-Newark: Main DA CA FRMTCAEDDS2  722   2011-01-26   
510-590 3 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2009-04-19   
510-590 9 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2006-12-15   
510-593 2 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2013-12-30   
510-619 7 Richmond CA FRMTCAEDDS2  722   2006-09-01   
510-686 5 Oakland: Trinidad DA CA FRMTCAEDDS2  722   2005-09-15   
510-686 8 Oakland: Trinidad DA CA FRMTCAEDDS2  722   2005-09-15   
510-689 2 Oakland: Fruitvale DA CA FRMTCAEDDS2  722   2012-08-13   
510-722 2 Crockett CA FRMTCAEDDS2  722   2007-04-09   
510-722 4 Crockett CA FRMTCAEDDS2  722   2006-04-07   
510-780 2 Hayward CA FRMTCAEDDS2  722   2008-09-22   
510-788 5 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2009-12-14   
510-788 6 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2009-12-14   
510-858 3 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2011-09-29   
510-858 5 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2011-12-05   
510-858 7 Oakland: Main-Piedmont DA CA FRMTCAEDDS2  722   2011-12-05   
510-894 7 Fremont-Newark: Main DA CA FRMTCAEDDS2  722   2005-09-15   
510-894 8 Fremont-Newark: Main DA CA FRMTCAEDDS2  722   2005-09-15   
510-897 6 Fremont-Newark: Oliver DA CA FRMTCAEDDS2  722   2005-08-26   
510-900 1 Oakland: Berkeley DA CA FRMTCAEDDS2  722   2012-08-07   
510-900 6 Oakland: Berkeley DA CA FRMTCAEDDS2  722   2012-08-07   
510-943 3 Fremont-Newark: Main DA CA FRMTCAEDDS2  722   2005-06-05   
510-948 A Hercules-Rodeo CA FRMTCAEDDS2  722      
510-948 4 Hercules-Rodeo CA FRMTCAEDDS2  722   2005-06-13   
510-952 2 Fremont-Newark: Greenleaf DA CA FRMTCAEDDS2  722   2014-08-01   
510-952 3 Fremont-Newark: Greenleaf DA CA FRMTCAEDDS2  722   2005-06-13   
510-952 4 Fremont-Newark: Greenleaf DA CA FRMTCAEDDS2  722   2005-06-13   
510-952 5 Fremont-Newark: Greenleaf DA CA FRMTCAEDDS2  722   2005-06-13   
510-952 8 Fremont-Newark: Greenleaf DA CA FRMTCAEDDS2  722   2006-09-01   
530-231 3 Davis CA RSVLCANLDS4  726   2006-03-10   
530-231 6 Davis CA RSVLCANLDS4  726   2006-11-19   
530-231 7 Davis CA RSVLCANLDS4  726   2008-11-09   
530-302 3 Davis CA RSVLCANLDS4  726   2010-07-16   
530-387 2 Shingle Springs CA RSVLCANLDS4  726   2005-07-18   
530-387 3 Shingle Springs CA RSVLCANLDS4  726   2005-07-18   
530-387 5 Shingle Springs CA RSVLCANLDS4  726   2006-06-22   
530-387 6 Shingle Springs CA RSVLCANLDS4  726   2008-09-22   
530-578 6 South Tahoe CA RSVLCANLDS4  726   2005-06-09   
530-745 6 Auburn: Main DA CA RSVLCANLDS4  726   2007-03-02   
530-748 1 Placerville: West DA CA RSVLCANLDS4  726   2007-02-18   
559-785 6 Fresno CA FRSNCA01XGZ  728   2014-12-27   
559-943 A Del Rey CA FRSNCA01XGZ  728      
559-943 2 Del Rey CA FRSNCA01XGZ  728   2014-12-06   
562-206 7 Long Beach CA SNANCALWDS1  730   2008-12-14   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.