| Area code | Year created | Parent NPA | Overlay | Numbering plan area |
|---|---|---|---|---|
| 317 | 1947 | – | 317/463 | Metro Indianapolis;Boone County,Hancock County,Hamilton County,Hendricks County,Johnson County,Marion County,Morgan County, andShelby County |
| 463 | 2016 | 317 | ||
| 219 | 1948 | 317 | – | Northwest corner of the state, includingGary,Hammond,Merrillville,Valparaiso, andMichigan City |
| 765 | 1997 | 317 | – | Central Indiana, except theIndianapolis metro area |
| 260 | 2002 | 219 | – | Northeast Indiana, includingFort Wayne, andAngola. |
| 574 | 2002 | 219 | – | North-central Indiana, includingSouth Bend,North Judson, andWarsaw |
| 812 | 1947 | – | 812/930 | Evansville,Vincennes,Terre Haute,Bloomington,Columbus,Madison, andJeffersonville |
| 930 | 2015 | 812 |