Question 1

What is the area code for Berkeley?

Accepted Answer

The main area code for Berkeley, California is 510. Berkeley is now served by 2 area codes in total: 510, 341.

Question 2

How many area codes does Berkeley have?

Accepted Answer

Berkeley has 2 area codes: 510, 341.

Question 3

Why does Berkeley have more than one area code?

Accepted Answer

As Berkeley used up the numbers available in its original area code (510, in service since 1991), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a Berkeley number?

Accepted Answer

Dial all 10 digits — the area code (510 or 341) followed by the 7-digit local number. From outside the U.S., dial +1, then the area code and number.

Area codes in Berkeley, California

Area codes serving Berkeley