Question 1

What is the area code for Fairfield?

Accepted Answer

The main area code for Fairfield, California is 707. Fairfield is now served by 2 area codes in total: 707, 369.

Question 2

How many area codes does Fairfield have?

Accepted Answer

Fairfield has 2 area codes: 707, 369.

Question 3

Why does Fairfield have more than one area code?

Accepted Answer

As Fairfield used up the numbers available in its original area code (707, in service since 1959), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a Fairfield number?

Accepted Answer

Dial all 10 digits — the area code (707 or 369) followed by the 7-digit local number. From outside the U.S., dial +1, then the area code and number.

Area codes in Fairfield, California

Area codes serving Fairfield