| General Information about Area Code 618 | |
|---|---|
| Country | United States |
| State / Province / Territory | Illinois |
| Major City | Belleville |
| Time Zone | Central (UTC-06:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 618-483 | Altamont | Effingham | Landline |
| 618-363 | Venice | Madison | Wireless |
| 618-844 | Saint Louis | Saint Louis City | Landline |
| 618-262 | Mount Carmel | Wabash | Landline |
| 618-397 | Fairview Heights | Saint Clair | Landline |
| 618-615 | Chester | Randolph | Landline |
| 618-355 | Belleville | Saint Clair | Landline |
| 618-348 | Benton | Franklin | Landline |
| 618-650 | Edwardsville | Madison | Landline |
| 618-889 | Marion | Williamson | Wireless |
| 618-816 | Mount Vernon | Jefferson | Landline |
| 618-727 | Energy | Williamson | Wireless |
| 618-806 | Caseyville | Saint Clair | Wireless |
| 618-213 | Collinsville | Madison | Landline |
| 618-770 | Hutsonville | Crawford | Landline |
| 618-679 | Thebes | Alexander | Landline |
| 618-450 | Mount Carmel | Wabash | Landline |
| 618-924 | Pomona | Jackson | Wireless |
| 618-446 | Browns | Edwards | Landline |
| 618-236 | Belleville | Saint Clair | Landline |