General Information about Area Code 312 | |
---|---|
Country | United States |
State / Province / Territory | Illinois |
Major City | Chicago |
Time Zone | Central (UTC-06:00) |
Prefix | Primary City | County | Phone Type |
---|---|---|---|
312-496 | Chicago | Cook | Landline |
312-969 | Brookfield | Cook | Wireless |
312-914 | Chicago | Cook | Wireless |
312-256 | Chicago | Cook | Landline |
312-275 | Chicago | Cook | Landline |
312-833 | Chicago | Cook | Wireless |
312-934 | Chicago | Cook | Wireless |
312-437 | Chicago | Cook | Wireless |
312-305 | Northbrook | Cook | Wireless |
312-993 | Chicago | Cook | Landline |
312-883 | Chicago | Cook | Landline |
312-714 | Chicago | Cook | Landline |
312-235 | Chicago | Cook | Landline |
312-318 | Brookfield | Cook | Wireless |
312-384 | Chicago | Cook | Landline |
312-829 | Chicago | Cook | Landline |
312-994 | Chicago | Cook | Landline |
312-899 | Chicago | Cook | Landline |
312-855 | Chicago | Cook | Landline |
312-979 | Chicago | Cook | Wireless |