| District of Indiana area codes: 765 | |
|---|---|
| Country | United States |
| State/Province | Indiana |
| Major City | Indianapolis |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 765-660 | Grant | Marion, IN | Teleport Communications America |
| 765-661 | Grant | Marion, IN | Cellco Partnership DBA Verizon Wireless |
| 765-662 | Grant | Marion, IN | Ameritech Indiana |
| 765-663 | Rush | Arlington, IN | Frontier North |
| 765-664 | Grant | Marion, IN | Ameritech Indiana |
| 765-665 | Vermillion | Dana, IN | Ameritech Indiana |
| 765-667 | Grant | Marion, IN | Cellco Partnership DBA Verizon Wireless |
| 765-668 | Grant | Marion, IN | Ameritech Indiana |
| 765-669 | Grant | Marion, IN | Ameritech Indiana |
| 765-670 | Clinton | Frankfort, IN | Tw Telecom Of Indiana Lp |
| 765-671 | Grant | Marion, IN | Ameritech Indiana |
| 765-672 | Putnam | Reelsville, IN | Clay Country Rural Tel Coop DBA Endeavor Comm |
| 765-673 | Grant | Marion, IN | Ameritech Indiana |
| 765-674 | Grant | Marion, IN | Ameritech Indiana |
| 765-675 | Tipton | Tipton, IN | Tipton Telephone Co. |
| 765-676 | Boone | Jamestown, IN | United Tel. Co. Of Indiana DBA Centurylink |
| 765-677 | Grant | Marion, IN | Ameritech Indiana |
| 765-678 | Vermillion | Dana, IN | Teleport Communications America |
| 765-679 | Fayette | Glenwood, IN | Frontier North |
| 765-680 | Boone | Lebanon, IN | Level 3 Communications |
There are 613 prefixes, In the code area, the major cities are Anderson, IN;Kokomo, IN;Lafayette, IN;Marion, IN;M. The major city is Indianapolis.