| 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 |
|---|---|---|---|
| 317-261 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-262 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-263 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-264 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-265 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-266 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-267 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-268 | Marion | Indianapolis, IN | Mcleodusa Telecommunications Services- In |
| 317-269 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-270 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-271 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-272 | Hendricks | Indianapolis, IN | Ameritech Indiana |
| 317-273 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-274 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-275 | Marion | Indianapolis, IN | Tw Telecom Of Indiana Lp |
| 317-276 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-277 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-278 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-279 | Marion | Indianapolis, IN | Windstream Nuvox Indiana |
| 317-280 | Marion | Indianapolis, IN | Ameritech 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.