ILLINOIS · AREA CODE GUIDE
773 area code location: Chicago, Illinois
- Local date and time
- Central Time
Map data: HSIP (2010) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 773 area code map
A printable area code 773 location map, with time zone and state. Use the PNG image in a document or slide; the SVG stays sharp at any size.
773 area code at a glance
- State
- Illinois
- Primary cities
- Chicago
- Established
- Population
- Largest community: Chicago, 2,731,585 (2025)Not an area-code population.
- Prefixes in service
- 785 as of 13 October 2026
An area code does not show where a caller is now.
History
Country and calling code: United States (+1).
Parent code: 312.
New code planned: No, as of 22 September 2026.
Time zone
- Central Time
- Standard time UTC−06:00
- Daylight saving time UTC−05:00
Counties and cities covered
773 numbers are issued across 1 community. These are telephone exchange areas, which follow the phone network rather than city limits, so a place can sit just outside the boundary of the town it is named for.
Counties of the communities we could place (the code may reach further): Cook County and DuPage County.
- Chicago
Notable places in 773
| Place | Where | What it is |
|---|---|---|
| University of Chicago | 8.8 km from Chicago | University, 21,145 12-month enrollment (2023–24) |
| Midway International Airport | 8.0 km from Chicago | Commercial airport, 10,360,093 enplanements (2024) |
| Wrigley Field | 12.6 km from Chicago | Stadium |
| DePaul University | 10.0 km from Chicago | University, 24,433 12-month enrollment (2023–24) |
| Kenneth C. Griffin Museum of Science and Industry | 9.9 km from Chicago | Museum |
| Institute for the Study of Ancient Cultures, West Asia & North Africa | 9.0 km from Chicago | Museum |
| Rate Field | 4.3 km from Chicago | Stadium |
| Chicago State University | 14.7 km from Chicago | University, 2,854 12-month enrollment (2023–24) |
| Barack Obama Presidential Center | 10.0 km from Chicago | Museum |
| Lincoln Park Zoo | 10.3 km from Chicago | Zoo |
Questions about 773
Where is the 773 area code?
773 is in Illinois. Its numbers are issued in Chicago.
What time zone is area code 773 in?
773 is in Central Time. Daylight saving time is observed.
What cities are in the 773 area code?
Chicago.
What state is area code 773 in?
Area code 773 is in Illinois.
What counties are covered by area code 773?
Area code 773 covers communities in Cook County and DuPage County.
Is 773 a toll-free area code?
No. 773 is a geographic area code. The toll-free codes are 800, 833, 844, 855, 866, 877, and 888.
Sources: NANPA area code listing, NANPA places by area code, NANPA central office code assignments, U.S. Census Bureau population estimates, OMB metropolitan area delineations. Checked .
Business phone numbers in area code 773, answered by an AI agent
A local number for Chicago, Illinois, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.