| District of Indiana area codes: 317 | |
|---|---|
| Country | United States |
| State/Province | Indiana |
| Major City | Indianapolis |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 317-301 | Marion | Indianapolis, IN | American Messaging (am) |
| 317-302 | Marion | Indianapolis, IN | American Messaging (am) |
| 317-303 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-304 | Marion | Indianapolis, IN | American Messaging (am) |
| 317-305 | Marion | Indianapolis, IN | American Messaging (am) |
| 317-306 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-307 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-308 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-309 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-310 | Marion | Indianapolis, IN | American Messaging (am) |
| 317-312 | Marion | Indianapolis, IN | American Messaging (am) |
| 317-313 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
| 317-314 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-315 | Hancock | Greenfield, IN | Cellco Partnership DBA Verizon Wireless |
| 317-318 | Hancock | Greenfield, IN | Teleport Communications America |
| 317-319 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
| 317-320 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-321 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-322 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-323 | Hancock | Fortville, IN | Hancock Rural Telephone Corp. DBA Ninestar Connect |
There are 729 prefixes, In the code area, the major cities are Carmel, IN;Fishers, IN;Greenwood, IN;Indianapolis,. The major city is Indianapolis.