| 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 |
|---|---|---|---|
| 317-200 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-201 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-202 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-203 | Hendricks | Plainfield, IN | Us Xchange Of Indiana LLC DBA Choice One Comm In |
| 317-204 | Marion | Indianapolis, IN | Teleport Communications America |
| 317-205 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-206 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-207 | Hancock | Charlottesville, IN | Level 3 Communications |
| 317-208 | Hamilton | Carmel, IN | Ameritech Indiana |
| 317-209 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-210 | Morgan | Mooresville, IN | Teleport Communications America |
| 317-212 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-213 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-214 | Hamilton | Noblesville, IN | Windstream Nuvox Indiana |
| 317-215 | Marion | Indianapolis, IN | Windstream Nuvox Indiana |
| 317-216 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-217 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-218 | Marion | Indianapolis, IN | Windstream Nuvox Indiana |
| 317-219 | Hamilton | Noblesville, IN | Us Xchange Of Indiana LLC DBA Choice One Comm In |
| 317-220 | Marion | Indianapolis, IN | Cellco Partnership DBA Verizon Wireless |
There are 729 prefixes, In the code area, the major cities are Carmel, IN;Fishers, IN;Greenwood, IN;Indianapolis,. The major city is Indianapolis.