Area Code 858


Country United States
State/Province California 
Major City San Diego 
Easy URL areacode.org/858 

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858 Area Code

AreaCode.org is an area code finder with detailed information on the 858 area code including 858 area code map.

Major cities like San Diego within area code 858 are also listed on this page. More area codes, including those outside of California, are found on the AreaCode.org homepage.

Some telephone area codes are overlaid, requiring 10-digit dialing. AreaCode.org is your one-stop site for area code lookup, area code search, and area code locator.


Area Code 858 Detail

Area code 858 serves San Diego County, California, including Del Mar, Poway, and La Jolla. It was created in 1999 when area code 619 was split.

858 Area Code Location
Major Cities County State/Province
San Diego  San Diego  CA 
Other Cities By Name
Del Mar  San Diego  CA 
La Jolla  San Diego  CA 
Poway  San Diego  CA 
Rancho Bernardo  San Diego  CA 
Rancho Penasquitos  San Diego  CA 
Rancho Santa Fe  San Diego  CA 


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