| 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 |
|---|---|---|---|
| 618-944 | Marion | Williamson | Landline |
| 618-548 | Salem | Marion | Landline |
| 618-330 | Villa Ridge | Pulaski | Landline |
| 618-241 | Mount Vernon | Jefferson | Landline |
| 618-781 | Caseyville | Saint Clair | Wireless |
| 618-564 | Brookport | Massac | Landline |
| 618-733 | Carterville | Williamson | Landline |
| 618-284 | Modoc | Randolph | Landline |
| 618-390 | Woodlawn | Jefferson | Landline |
| 618-783 | Newton | Jasper | Landline |
| 618-528 | Carbondale | Jackson | Wireless |
| 618-501 | Collinsville | Madison | Landline |
| 618-793 | Hidalgo | Jasper | Landline |
| 618-613 | Carlyle | Clinton | Landline |
| 618-372 | Brighton | Macoupin | Landline |
| 618-328 | Dow | Jersey | Landline |
| 618-453 | Carbondale | Jackson | Landline |
| 618-655 | Edwardsville | Madison | Landline |
| 618-808 | Lebanon | Saint Clair | Landline |
| 618-751 | Johnston City | Williamson | Wireless |