| 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 |
|---|---|---|---|
| 618-321 | Caseyville | Saint Clair | Wireless |
| 618-297 | Eldorado | Saline | Landline |
| 618-743 | Grand Chain | Pulaski | Landline |
| 618-238 | Edgewood | Effingham | Landline |
| 618-313 | Ridgway | Gallatin | Wireless |
| 618-687 | Murphysboro | Jackson | Landline |
| 618-697 | Anna | Union | Wireless |
| 618-352 | Centralia | Marion | Wireless |
| 618-406 | Caseyville | Saint Clair | Wireless |
| 618-447 | Collinsville | Madison | Wireless |
| 618-767 | Belleville | Saint Clair | Landline |
| 618-260 | Eldorado | Saline | Landline |
| 618-574 | Aviston | Clinton | Landline |
| 618-551 | East Saint Louis | Saint Clair | Landline |
| 618-662 | Flora | Clay | Landline |
| 618-833 | Anna | Union | Landline |
| 618-841 | Harrisburg | Saline | Wireless |
| 618-798 | Granite City | Madison | Landline |
| 618-361 | Godfrey | Madison | Wireless |
| 618-984 | Royalton | Franklin | Landline |