| 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 |
|---|---|---|---|
| 517-340 | Ingham | Lansing, MI | Usa Mobility Wireless |
| 517-341 | Ingham | Lansing, MI | Usa Mobility Wireless |
| 517-342 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-343 | Calhoun | Albion, MI | Sigecom |
| 517-345 | Eaton | Lansing, MI | Brooks Fiber Communications Of Michigan |
| 517-346 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-347 | Ingham | Okemos, MI | Ameritech Michigan |
| 517-348 | Ingham | Lansing, MI | Neutral Tandem-michigan |
| 517-349 | Ingham | Okemos, MI | Ameritech Michigan |
| 517-351 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-353 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-355 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-357 | Hillsdale | Reading, MI | Frontier Communications Of Michigan |
| 517-358 | Jackson | Jackson, MI | Cellco Partnership DBA Verizon Wireless |
| 517-359 | Ingham | Lansing, MI | American Messaging (am) |
| 517-360 | Ingham | Lansing, MI | American Messaging (am) |
| 517-361 | Hillsdale | Hillsdale, MI | American Messaging (am) |
| 517-363 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-364 | Ingham | Lansing, MI | Ameritech Michigan |
| 517-366 | Lenawee | Adrian, MI | Sprint Spectrum L.p. |
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.