Area Code Lookup
What Area Code Is La Jolla?
Area code 858 · California
La Jolla uses area code 858. It is located in California.
Area Code Serving La Jolla
Frequently Asked Questions
What area code is La Jolla?
La Jolla uses area code 858. It is located in California.
How do I call La Jolla from outside the US?
To call La Jolla from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-858-XXX-XXXX). The +1 is the country code for all NANPA countries.