Indiana | Illinois | Michigan Michigan: Western (231, 269, 616, 906) Central (517, 989) Eastern (248, 313, 586, 734, 810, 947) Central MichiganArea Code 517 originally covered most of central lower Michigan. (Note: Area code lines have shifted from the original 1947 lines.)Area Code 989 Northeast lower Michigan (north of Lansing) was split from 517 to become the 989 area code on August 19th, 2000. Permissive dialing ended January 20th, 2001. Area code 989 except the Gaines exchange form the Saganaw LATA. Area Code 517 The 517 area code remains in service for southern central Michigan (Lansing and south). Most of the exchanges in area code 517 are in the Lansing LATA.  | ||
|
