| City | Area Code | Dialing Code |
|---|---|---|
| Anderson | 765 | +1 765 |
| Bloomington | 812 | +1 812 |
| Bloomington | 930 | +1 930 |
| Carmel | 317 | +1 317 |
| Clarksville | 812 | +1 812 |
| Clarksville | 930 | +1 930 |
| Columbus | 812 | +1 812 |
| Columbus | 930 | +1 930 |
| East Chicago | 219 | +1 219 |
| Elkhart | 574 | +1 574 |
| Evansville | 812 | +1 812 |
| Evansville | 930 | +1 930 |
| Fishers | 317 | +1 317 |
| Fort Wayne | 260 | +1 260 |
| Gary | 219 | +1 219 |
| Goshen | 574 | +1 574 |
| Granger | 574 | +1 574 |
| Greenwood | 317 | +1 317 |
| Hammond | 219 | +1 219 |
| Highland | 219 | +1 219 |
| Hobart | 219 | +1 219 |
| Indianapolis | 317 | +1 317 |
| Jeffersonville | 812 | +1 812 |
| Jeffersonville | 930 | +1 930 |
| Kokomo | 765 | +1 765 |
| LaPorte | 219 | +1 219 |
| Lawrence | 317 | +1 317 |
| Marion | 765 | +1 765 |
| Merrillville | 219 | +1 219 |
| Michigan City | 219 | +1 219 |
| Mishawaka | 574 | +1 574 |
| Muncie | 765 | +1 765 |
| Munster | 219 | +1 219 |
| New Albany | 812 | +1 812 |
| New Albany | 930 | +1 930 |
| Noblesville | 317 | +1 317 |
| Portage | 219 | +1 219 |
| Richmond | 765 | +1 765 |
| Schererville | 219 | +1 219 |
| South Bend | 574 | +1 574 |
| Terre Haute | 812 | +1 812 |
| Terre Haute | 930 | +1 930 |
| Valparaiso | 219 | +1 219 |
| West Lafayette | 765 | +1 765 |
| West Lafayette | 765 | +1 765 |