| 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 |
|---|---|---|---|
| 317-281 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-282 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-283 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-284 | Marion | Indianapolis, IN | Windstream Nuvox Indiana |
| 317-285 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-286 | Marion | Indianapolis, IN | Global Crossing Local Services-in |
| 317-287 | Marion | Indianapolis, IN | Teleport Communications America |
| 317-288 | Marion | Indianapolis, IN | Comcast Phone Of Central Indiana |
| 317-289 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-290 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-291 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-292 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
| 317-293 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-294 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
| 317-295 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-296 | Marion | Indianapolis, IN | Cellco Partnership DBA Verizon Wireless |
| 317-297 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-298 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-299 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-300 | Johnson | Greenwood, IN | Comcast Phone Of Central Indiana |
There are 729 prefixes, In the code area, the major cities are Carmel, IN;Fishers, IN;Greenwood, IN;Indianapolis,. The major city is Indianapolis.