Question 1

What is the area code for Simi Valley?

Accepted Answer

The main area code for Simi Valley, California is 805. Simi Valley is now served by 2 area codes in total: 805, 820.

Question 2

How many area codes does Simi Valley have?

Accepted Answer

Simi Valley has 2 area codes: 805, 820.

Question 3

Why does Simi Valley have more than one area code?

Accepted Answer

As Simi Valley used up the numbers available in its original area code (805, in service since 1957), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a Simi Valley number?

Accepted Answer

Dial all 10 digits — the area code (805 or 820) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.

Area codes in Simi Valley, California

Area codes serving Simi Valley

Nearby cities