Where Is Area Code 679?
Area code 679 is assigned to the same geographic region as area code 313, centered on Detroit in southeastern Michigan’s Great Lakes region. It is an overlay, so it covers the existing Detroit calling area rather than a separate part of Michigan.
The region includes Detroit and nearby Wayne County communities such as Dearborn, Hamtramck, Highland Park, and Grosse Pointe. The Detroit River runs along the city, and Belle Isle sits in the river. Detroit landmarks in the area include the Detroit Institute of Arts and Wayne State University.
Cities and Communities in the 679 Area Code
- Detroit, Wayne County
- Dearborn, Wayne County
- Hamtramck, Wayne County
- Highland Park, Wayne County
- Grosse Pointe, Wayne County
History of Area Code 679
Michigan approved area code 679 in 2022 as an overlay for the 313 region. The plan called for 679 numbers to be introduced in 2025 to add phone number capacity. An overlay adds a new area code to an existing region instead of dividing that region into separate areas.
Area code 313 dates to 1947, when North America introduced its first set of area codes. Its original territory covered more of southeastern Michigan than it does today. Area codes 810 and 734 took portions of that territory in splits in 1993 and 1997, respectively.
Key Facts About Area Code 679
- Area code 679 is a geographic area code for Michigan, with Detroit as its primary city.
- Area code 679 is an overlay for the 313 region, not a split that creates a new geographic boundary.
- The Michigan Public Service Commission approved the 679 overlay in 2022, with introduction planned for 2025.
- The 679 and 313 codes cover the same geographic region, so a code alone does not identify a separate Detroit-area community.
- The region includes Detroit and nearby communities in Wayne County, including Dearborn, Hamtramck, and Highland Park.
- Detroit observes Eastern Time, including Eastern Standard Time and Eastern Daylight Time as the clocks change.
- The Detroit Institute of Arts, Wayne State University, and Belle Isle are notable places in the region.
- No separate official population total applies to 679, because it overlays an existing area rather than matching a distinct census boundary.
Frequently Asked Questions
What state is area code 679 in?
Area code 679 is in Michigan.
What major cities use area code 679?
It is designated for Detroit and nearby communities, including Dearborn, Hamtramck, Highland Park, and Grosse Pointe.
What time zone is area code 679 in?
Area code 679 is in the Eastern Time Zone.
Is area code 679 a toll-free number?
No, area code 679 is a geographic area code, not a toll-free number.