| 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 |
|---|---|---|---|
| 517-961 | Calhoun | Albion, MI | Acd Telecom |
| 517-962 | Jackson | Jackson, MI | Teleport Communications America |
| 517-963 | Jackson | Parma, MI | Acd Telecom |
| 517-964 | Hillsdale | Hillsdale, MI | Acd Telecom |
| 517-965 | Eaton | Potterville, MI | Acd Telecom |
| 517-966 | Eaton | Dimondale, MI | Brooks Fiber Communications Of Michigan |
| 517-968 | Ingham | Dansville, MI | Brooks Fiber Communications Of Michigan |
| 517-969 | Ingham | Mason, MI | Talk America Inc. |
| 517-970 | Hillsdale | Reading, MI | Acd Telecom |
| 517-972 | Ingham | Webberville, MI | Acd Telecom |
| 517-973 | Eaton | Charlotte, MI | American Messaging (am) |
| 517-974 | Ingham | Lansing, MI | New Cingular Wireless PCS - IL |
| 517-975 | Ingham | Lansing, MI | Talk America Inc. |
| 517-977 | Ingham | Lansing, MI | Comcast Phone Of Michigan |
| 517-978 | Eaton | Eaton Rapids, MI | Acd Telecom |
| 517-979 | Jackson | Rives Junction, MI | Acd Telecom |
| 517-980 | Ingham | Lansing, MI | Omnipoint Communications Midwest Operations LLC |
| 517-981 | Eaton | Vermontville, MI | Acd Telecom |
| 517-982 | Livingston | Howell, MI | American Messaging (am) |
| 517-983 | Eaton | Charlotte, MI | Cellco Partnership DBA Verizon Wireless |
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.