| 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 |
|---|---|---|---|
| 618-533 | Centralia | Marion | Landline |
| 618-295 | Lenzburg | Saint Clair | Landline |
| 618-460 | Louisville | Clay | Landline |
| 618-430 | Altamont | Effingham | Landline |
| 618-893 | Cobden | Union | Landline |
| 618-583 | East Saint Louis | Saint Clair | Landline |
| 618-212 | Collinsville | Madison | Landline |
| 618-300 | Caseyville | Saint Clair | Landline |
| 618-521 | Carbondale | Jackson | Wireless |
| 618-989 | Johnston City | Williamson | Landline |
| 618-493 | Hoyleton | Washington | Landline |
| 618-606 | Collinsville | Madison | Landline |
| 618-699 | Vandalia | Fayette | Landline |
| 618-324 | Caseyville | Saint Clair | Wireless |
| 618-298 | Browns | Edwards | Landline |
| 618-909 | Lenzburg | Saint Clair | Landline |
| 618-593 | Caseyville | Saint Clair | Wireless |
| 618-927 | Buckner | Franklin | Wireless |
| 618-621 | Ewing | Franklin | Landline |
| 618-799 | Caseyville | Saint Clair | Wireless |