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.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
510-875 7 Oakland: Trinidad DA CA FRMTCAEDDS0  722      
510-877 7 Oakland: Trinidad DA CA FRMTCAEDDS0  722   2005-09-15   
510-877 8 Oakland: Trinidad DA CA FRMTCAEDDS0  722   2005-09-15   
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 2 Oakland: Berkeley DA CA FRMTCAEDDS0  722   2011-10-26   
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   
530-313 5 Shingle Springs CA RSVLCANLDS0  726   2005-01-25   
530-313 6 Shingle Springs CA RSVLCANLDS0  726   2005-01-25   
530-350 A Shingle Springs CA RSVLCANLDS0  726      
530-350 1 Shingle Springs CA RSVLCANLDS0  726   2006-06-11   
530-350 2 Shingle Springs CA RSVLCANLDS0  726   2005-07-18   
530-350 3 Shingle Springs CA RSVLCANLDS0  726      
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   
530-488 A Auburn: Main DA CA RSVLCANLDS4  726      
530-578 6 South Tahoe CA RSVLCANLDS4  726   2005-06-09   
530-647 3 Placerville: West DA CA RSVLCANLDS0  726   2004-05-02   
530-725 A South Tahoe CA RSVLCANLDS0  726      
530-725 0 South Tahoe CA RSVLCANLDS0  726      
530-725 1 South Tahoe CA RSVLCANLDS0  726   2004-12-07   
530-725 4 South Tahoe CA RSVLCANLDS0  726   2005-05-29   
530-725 5 South Tahoe CA RSVLCANLDS0  726   2005-05-29   
530-725 7 South Tahoe CA RSVLCANLDS0  726   2005-05-29   
530-725 8 South Tahoe CA RSVLCANLDS0  726   2005-05-29   
530-745 6 Auburn: Main DA CA RSVLCANLDS4  726   2007-03-02   
530-748 0 Placerville: West DA CA RSVLCANLDS0  726   2007-01-28   
530-748 1 Placerville: West DA CA RSVLCANLDS4  726   2007-02-18   
530-852 A Auburn: Main DA CA RSVLCANLDS0  726      
530-852 0 Auburn: Main DA CA RSVLCANLDS0  726      
530-852 3 Auburn: Main DA CA RSVLCANLDS0  726   2010-03-17   
530-852 4 Auburn: Main DA CA RSVLCANLDS0  726   2004-09-17   
530-852 5 Auburn: Main DA CA RSVLCANLDS0  726   2005-03-20   
530-852 6 Auburn: Main DA CA RSVLCANLDS0  726   2010-03-17   

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Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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