| 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 |
|---|---|---|---|
| 317-940 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-941 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-942 | Marion | Indianapolis, IN | Global Crossing Local Services-in |
| 317-944 | Marion | Indianapolis, IN | Hrs Internet DBA Lightbound |
| 317-945 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-946 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
| 317-947 | Marion | Cumberland, IN | Us Xchange Of Indiana LLC DBA Choice One Comm In |
| 317-948 | Marion | Indianapolis, IN | Hrs Internet DBA Lightbound |
| 317-949 | Marion | Indianapolis, IN | Usa Mobility Wireless |
| 317-951 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-952 | Ameritech Indiana | ||
| 317-954 | Marion | Indianapolis, IN | Cellco Partnership DBA Verizon Wireless |
| 317-955 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-956 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-957 | Marion | Indianapolis, IN | Tw Telecom Of Indiana Lp |
| 317-962 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-963 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-964 | Marion | Indianapolis, IN | Ameritech Indiana |
| 317-965 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
| 317-966 | Marion | Indianapolis, IN | New Cingular Wireless PCS - IL |
There are 729 prefixes, In the code area, the major cities are Carmel, IN;Fishers, IN;Greenwood, IN;Indianapolis,. The major city is Indianapolis.