ann arbor, michigan

Where Is Area Code 278?

Area code 278 is listed here for Ann Arbor, Michigan. Ann Arbor is in Washtenaw County in southeastern Michigan, west of Detroit. The city sits along the Huron River in the Great Lakes region.

Ann Arbor is the county seat of Washtenaw County. Nearby communities in the Ann Arbor area include Ypsilanti, Saline, Dexter, and Chelsea. The University of Michigan is in Ann Arbor and is one of the city’s best-known institutions.

The Huron River is a major geographic feature in Ann Arbor. Notable local landmarks include the University of Michigan campus and Michigan Stadium. Ann Arbor is also part of the broader Detroit-Ann Arbor regional corridor in southeast Michigan.

History of Area Code 278

No verified public record shows area code 278 as an active area code assigned to Ann Arbor, Michigan. Ann Arbor and much of southeastern Michigan have long used area code 734, which was created in 1997 in a split from area code 313.

Area code 734 serves Ann Arbor, Ypsilanti, and other nearby communities. Publicly documented overlays in this part of Michigan involve 679 as an overlay to 734, approved for future relief, not 278. Because of that, there is no confirmed history of area code 278 being established, split, or overlaid for Ann Arbor.

Key Facts About Area Code 278

• Area code 278 is not listed in public North American Numbering Plan records as an active geographic area code for Ann Arbor, Michigan.
• Ann Arbor is in the state of Michigan and is the county seat of Washtenaw County.
• Ann Arbor is in the Eastern Time Zone.
• The primary historic area code for Ann Arbor is 734, which began service in 1997 after a split from 313.
• Area code 679 has been designated as an overlay for 734 in southeastern Michigan, including Ann Arbor.
• The University of Michigan is located in Ann Arbor and is one of the city’s most notable institutions.
• Michigan Stadium, home to University of Michigan football, is in Ann Arbor and is one of the largest stadiums in the United States.
• According to the 2020 U.S. Census, Ann Arbor had a population of 123,851.

Frequently Asked Questions

What state is area code 278 in?

No verified record shows area code 278 as an active geographic area code in Michigan or for Ann Arbor.

What major cities use area code 278?

No major Michigan cities are publicly documented as using active area code 278, while Ann Arbor uses 734.

Is area code 278 a toll-free number?

No, 278 is not a toll-free code, and there is no verified record showing it as an active geographic area code for Ann Arbor.