The 773 area code belongs to the state of Illinois (IL) and it covers most of Chicago.
| State | Larger cities in area code 773 | Time Zone |
|---|---|---|
| IL Illinois |
Chicago, Harwood Heights, Lincolnwood (except downtown Chicago covered by 312) | CENTRAL Current time is
03:57:04 PM |
| -- overlaid by area code 872 -- | ||