618 area code
Area code 618 is in Illinois, including Belleville, Granite City, East St. Louis and Edwardsville. It's on Central Time.
Central Time
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Is it a good time to call 618?
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Business hours are taken as 9 AM to 5 PM on weekdays. US telemarketing rules only allow sales calls between 8 AM and 9 PM local time.
Cities in area code 618
| City | Time zone |
|---|---|
| Belleville, IL | Central Time |
| Granite City, IL | Central Time |
| East St. Louis, IL | Central Time |
| Edwardsville, IL | Central Time |
| Carbondale, IL | Central Time |
| Collinsville, IL | Central Time |
| Alton, IL | Central Time |
| Mount Vernon, IL | Central Time |
| Benton, IL | Central Time |
| Marion, IL | Central Time |
| Wood River, IL | Central Time |
| Harrisburg, IL | Central Time |
Other area codes in Illinois
More: look up another area code · time zone converter · US time zones map
Questions people ask
Where is area code 618?
Area code 618 is in Illinois, including Belleville, Granite City, East St. Louis and Edwardsville.
What time zone is area code 618?
618 is on Central Time (UTC−6, UTC−5 in summer).
What time is it in area code 618 right now?
The live clock at the top of this page shows the current local time in area code 618.