Question 1

What is the area code for Detroit?

Accepted Answer

The main area code for Detroit, Michigan is 313. Detroit is now served by 6 area codes in total: 313, 248, 734, 586, 947, 679.

Question 2

How many area codes does Detroit have?

Accepted Answer

Detroit has 6 area codes: 313, 248, 734, 586, 947, 679.

Question 3

Why does Detroit have more than one area code?

Accepted Answer

As Detroit used up the numbers available in its original area code (313, 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 Detroit number?

Accepted Answer

Dial all 10 digits — the area code (313 or 248 or 734 or 586 or 947 or 679) followed by the 7-digit local number. From outside the U.S., dial +1, then the area code and number.

Area codes in Detroit, Michigan

Area codes serving Detroit