Where Is Area Code 313?
Area code 313 serves southeastern Michigan, with Detroit and Dearborn at its center. It is concentrated in Wayne County and lies in the Great Lakes region of the United States.
The calling area includes Detroit and nearby communities such as Allen Park, Dearborn Heights, Ecorse, Grosse Pointe, Hamtramck, Harper Woods, Highland Park, Inkster, Lincoln Park, Melvindale, Redford Township, and River Rouge.
Important landmarks in the area include the Detroit River, Belle Isle Park, and the Ambassador Bridge. Dearborn is home to The Henry Ford, Greenfield Village, and the Ford Rouge Complex.
Cities and Communities in the 313 Area Code
- Allen Park, Wayne County
- Dearborn, Wayne County
- Dearborn Heights, Wayne County
- Detroit, Wayne County
- Ecorse, Wayne County
- Grosse Pointe, Wayne County
- Grosse Pointe Farms, Wayne County
- Grosse Pointe Park, Wayne County
- Grosse Pointe Shores, Wayne County
- Grosse Pointe Woods, Wayne County
- Hamtramck, Wayne County
- Harper Woods, Wayne County
- Highland Park, Wayne County
- Inkster, Wayne County
- Lincoln Park, Wayne County
- Melvindale, Wayne County
- Redford Township, Wayne County
- River Rouge, Wayne County
History of Area Code 313
Area code 313 is one of the original North American Numbering Plan area codes established in 1947. It was assigned to southeastern Michigan and was not created by splitting another area code.
Michigan later reduced the original 313 service area through geographic splits. Area code 517 was created from part of 313 in 1957, area code 810 split from 313 in 1993, and area code 734 split from 313 in 1997. Area code 679 entered service as an overlay for 313 in 2021, adding new numbering capacity while existing 313 numbers remained in use.
Key Facts About Area Code 313
- State: Area code 313 is a geographic area code in Michigan.
- Primary city: Dearborn is the primary city associated with area code 313.
- Major city: Detroit is the largest major city in the 313 calling area.
- County: The 313 calling area is concentrated in Wayne County.
- Region: Area code 313 is in the U.S. Census Bureau’s Great Lakes region.
- Time zone: Area code 313 uses Eastern Time, including Eastern Standard Time in winter and Eastern Daylight Time in summer.
- Type: Area code 313 is geographic, so it identifies a regional calling area rather than a toll-free service.
- Overlay: Area code 679 overlays area code 313 and entered service in 2021.
- Landmarks: The Henry Ford and Greenfield Village are major cultural institutions located in Dearborn within the 313 region.
Frequently Asked Questions
What state is area code 313 in?
Area code 313 is in Michigan.
What major cities use area code 313?
Major cities and communities using area code 313 include Detroit, Dearborn, Dearborn Heights, Hamtramck, Highland Park, Inkster, Lincoln Park, Melvindale, and River Rouge.
What time zone is area code 313 in?
Area code 313 uses Eastern Time, including Eastern Standard Time and Eastern Daylight Time.
Is area code 313 a toll-free number?
No, area code 313 is a geographic area code, not a toll-free number.