517 what area code is that
Map of area code 517 in Michigan. Area code 517 is the area code which serves the south central portion of the Lower Peninsula of Michigan. Notable cities within 517 include Charlotte, Mason, Eaton Rapids, Lansing, East Lansing, Jackson, Albion, Howell, Coldwater, Adrian, and Hillsdale.517 was one of the original area codes created in 1947, and originally covered the central and northeastern portions of the Lower Peninsula.t was one of the largest area codes east of the Mississippi River that didn't cover an entire state. On April 7, 2001, the northern and northeastern portions of the old 517 territory became area code 989.