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

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
858-321 5 San Diego: San Diego DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2023-10-06   
858-322 6 San Diego: Mira Mesa DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2016-08-23   
858-323 A Chula Vista CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-323 2 Chula Vista CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2021-09-23   
858-332 2 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-03-11   
858-333 8 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2010-12-13   
858-345 2 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2004-12-22   
858-345 4 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2003-02-17   
858-345 5 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-01-28   
858-346 0 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-346 1 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-346 4 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-346 5 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-346 6 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-346 7 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-346 8 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-348 4 San Diego: Mira Mesa DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2007-07-23   
858-355 9 San Diego: San Diego DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2022-01-07   
858-356 5 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-11-26   
858-356 6 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-11-26   
858-360 7 Rancho Penasquitos CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2014-04-28   
858-366 4 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2003-03-22   
858-367 5 Rancho Santa Fe CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-12-17   
858-375 1 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2011-09-18   
858-375 4 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2003-03-22   
858-375 5 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-01-14   
858-380 4 San Diego: Linda Vista DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-04-03   
858-380 5 San Diego: Linda Vista DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2005-04-03   
858-381 4 Rancho Santa Fe CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2012-07-22   
858-381 5 Rancho Santa Fe CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-01-31   
858-384 4 San Diego: Linda Vista DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-386 1 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2011-11-14   
858-386 4 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2007-05-24   
858-386 7 Poway CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-02-14   
858-388 3 El Cajon CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2019-10-05   
858-397 5 San Diego: Mira Mesa DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-05-19   
858-402 0 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2024-06-29   
858-412 0 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2007-05-03   
858-412 7 La Jolla CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2007-07-20   
858-429 A San Diego: Linda Vista DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-429 5 San Diego: Linda Vista DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-01-29   
858-429 6 San Diego: Linda Vista DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2008-02-01   
858-430 8 San Diego: Linda Vista DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2011-08-29   
858-433 4 San Diego: Mira Mesa DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2010-11-29   
858-437 5 San Diego: Mira Mesa DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2014-04-12   
858-461 A Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-461 6 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2006-02-27   
858-465 A Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732      
858-465 7 Del Mar CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2014-03-29   
858-477 6 San Diego: San Diego DA CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 732   2021-08-14   

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.