Question 1

What is the area code for Denver?

Accepted Answer

The main area code for Denver, Colorado is 303. Denver is now served by 3 area codes in total: 303, 720, 983.

Question 2

How many area codes does Denver have?

Accepted Answer

Denver has 3 area codes: 303, 720, 983.

Question 3

Why does Denver have more than one area code?

Accepted Answer

As Denver used up the numbers available in its original area code (303, in service since 1947), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.

Question 4

How do you dial a Denver number?

Accepted Answer

Dial all 10 digits — the area code (303 or 720 or 983) followed by the 7-digit local number. From outside the U.S., dial +1, then the area code and number.

Area codes in Denver, Colorado

Area codes serving Denver