| District of Michigan area codes: 517 | |
|---|---|
| Country | United States |
| State/Province | Michigan |
| Major City | Lansing |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 517-367 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-368 | Hillsdale | Camden, MI | Frontier Communications Of Michigan |
| 517-369 | Branch | Bronson, MI | Frontier North |
| 517-371 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-372 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-373 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-374 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-375 | Livingston | Fowlerville, MI | Cellco Partnership DBA Verizon Wireless |
| 517-376 | Livingston | Howell, MI | Comcast Phone Of Michigan |
| 517-377 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-380 | Ingham | Lansing, MI | American Messaging (am) |
| 517-381 | Ingham | Okemos, MI | Ameritech Michigan |
| 517-383 | Hillsdale | Prattville, MI | Frontier Communications Of Michigan |
| 517-386 | Eaton | Eaton Rapids, MI | Brooks Fiber Communications Of Michigan |
| 517-388 | Ingham | Lansing, MI | Cellco Partnership DBA Verizon Wireless |
| 517-390 | Jackson | Jackson, MI | American Messaging (am) |
| 517-391 | Ingham | Lansing, MI | AT&T Local |
| 517-392 | Jackson | Jackson, MI | AT&T Local |
| 517-393 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-394 | Ingham | Lansing, MI | Ameritech Michigan |
There are 533 prefixes, In the code area, the major cities are Adrian, MI;Clinton, MI;East Lansing, MI;Jackson, M. The major city is Lansing.