Question 1

What is the area code for San Diego?

Accepted Answer

The main area code for San Diego, California is 619. San Diego is now served by 2 area codes in total: 619, 858.

Question 2

How many area codes does San Diego have?

Accepted Answer

San Diego has 2 area codes: 619, 858.

Question 3

Why does San Diego have more than one area code?

Accepted Answer

As San Diego used up the numbers available in its original area code (619, in service since 1982), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a San Diego number?

Accepted Answer

Dial all 10 digits — the area code (619 or 858) followed by the 7-digit local number. From outside the U.S., dial +1, then the area code and number.

Area codes in San Diego, California

Area codes serving San Diego