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: SNDACAGLDS2

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
858-924 0 Rancho Bernardo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2014-03-18   
858-924 8 Rancho Bernardo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2014-07-20   
858-925 A Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-925 5 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2013-07-11   
858-925 8 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2011-09-26   
858-926 5 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-03-20   
858-943 4 Rancho Bernardo CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2012-04-07   
858-947 4 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-08-08   
858-952 A La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-952 0 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2006-02-09   
858-952 1 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2006-02-09   
858-956 1 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-956 3 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-07-22   
858-997 0 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2007-10-29   
858-997 1 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-05-16   
858-997 2 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-05-16   
858-999 3 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2011-04-07   
858-999 8 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2011-12-04   

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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