Detroit, Michigan

Where Is Area Code 679?

Area code 679 is in southeastern Michigan and is associated with the Detroit area. It serves Detroit and nearby communities in Wayne County, which sits along the Detroit River near the Canadian border.

The Detroit area includes major cities such as Detroit, Dearborn, Livonia, and Southfield. Wayne County also includes communities such as Taylor, Westland, and Dearborn Heights. Downtown Detroit is home to major landmarks including the Renaissance Center, Comerica Park, and Ford Field.

Detroit lies in the Great Lakes region. The city sits across the river from Windsor, Ontario, and is part of the larger Metro Detroit region.

History of Area Code 679

Area code 679 is a planned overlay for the Detroit area. The Michigan Public Service Commission approved 679 in 2024 as an overlay for the existing 313 area code.

Area code 313 is one of the original North American area codes created in 1947. Over time, phone number demand in Detroit continued to grow because of mobile phones, business lines, and connected devices. The 679 overlay adds new numbers to the same service area without changing existing 313 numbers.

Key Facts About Area Code 679

• Area code 679 is in Michigan and is associated with Detroit.
• Area code 679 is an overlay of area code 313 in the Detroit service area.
• The Michigan Public Service Commission approved the 679 overlay in 2024.
• Area code 313 was created in 1947 as one of the original area codes in the North American Numbering Plan.
• Area code 679 serves communities in Wayne County, including Detroit, Dearborn, Livonia, and Southfield.
• The Detroit area uses Eastern Time, including Eastern Standard Time and Eastern Daylight Time.
• Wayne County had a population of 1,793,561 in the 2020 U.S. Census.
• Major institutions and landmarks in the area include Wayne State University, the Detroit Institute of Arts, and the Renaissance Center.

Frequently Asked Questions

What state is area code 679 in?

Area code 679 is in Michigan.

What major cities use area code 679?

Area code 679 is associated with Detroit and nearby communities such as Dearborn, Livonia, Southfield, Taylor, Westland, and Dearborn Heights.

Is area code 679 a toll-free number?

No. Area code 679 is a geographic area code, not a toll-free number.