| 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 |
|---|---|---|---|
| 618-702 | Lebanon | Saint Clair | Wireless |
| 618-474 | Alton | Madison | Landline |
| 618-980 | Venice | Madison | Wireless |
| 618-359 | Centralia | Marion | Wireless |
| 618-375 | Grayville | White | Landline |
| 618-286 | Dupo | Saint Clair | Landline |
| 618-789 | Caseyville | Saint Clair | Wireless |
| 618-510 | Saint Elmo | Fayette | Landline |
| 618-586 | Palestine | Crawford | Landline |
| 618-746 | Belleville | Saint Clair | Landline |
| 618-424 | Addieville | Washington | Landline |
| 618-690 | Greenville | Bond | Landline |
| 618-576 | Hardin | Calhoun | Landline |
| 618-468 | Alton | Madison | Landline |
| 618-580 | Caseyville | Saint Clair | Wireless |
| 618-373 | Eldorado | Saline | Landline |
| 618-734 | Cairo | Alexander | Landline |
| 618-855 | East Saint Louis | Saint Clair | Landline |
| 618-826 | Chester | Randolph | Landline |
| 618-232 | Hamburg | Calhoun | Landline |