Significant events for area code 616
| Date |
Details |
| 1947 | One of the three original area codes for Michigan, covering all of the western area and the upper peninsula |
| March 19, 1961 | Area code 616 was split with 906 covering the upper peninsula |
| June, 1999 | Area code 616 was split with 231 covering west central Michigan |
| July 13, 2002 | Area code 616 was split with 269 covering the southwest area of Michigan |