| 861 Area Code Basic Information | |
|---|---|
| Area Code | 861 |
| Location | IL |
| Country | US |
| In Service Date | 2023-02-24 |
| Service Length | 3 years |
| Overlay Area Code? | Yes |
| Overlay Area Codes | 309 861 |
| Parent Area Code | 309 |
| Time Zone | C |
| Map | 577 |
| Area code in jeopardy? | No |
The following section explains how to dial outbound numbers from this area code.