| 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 |
|---|---|---|---|
| 317-324 | Marion | Indianapolis, IN | Global Crossing Local Services-in |
| 317-325 | Hancock | Greenfield, IN | Hancock Communications |
| 317-326 | Hancock | Fortville, IN | Hancock Rural Telephone Corp. DBA Ninestar Connect |
| 317-327 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-328 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-329 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-330 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-331 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-332 | Marion | Indianapolis, IN | Omnipoint Communications Midwest Operations LLC |
| 317-333 | Marion | Indianapolis, IN | Level 3 Communications |
| 317-334 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-335 | Hancock | Mc Cordsville, IN | Hancock Rural Telephone Corp. DBA Ninestar Connect |
| 317-336 | Hancock | Mc Cordsville, IN | Hancock Rural Telephone Corp. DBA Ninestar Connect |
| 317-337 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-338 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-339 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-340 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
| 317-341 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
| 317-344 | Marion | Indianapolis, IN | Tw Telecom Of Indiana Lp |
| 317-345 | Marion | Indianapolis, IN | Sprint Spectrum L.p. |
There are 729 prefixes, In the code area, the major cities are Carmel, IN;Fishers, IN;Greenwood, IN;Indianapolis,. The major city is Indianapolis.