About Area Code 773
- Region Code
- 773
- City
- Chicago
- State
- Illinois
- Largest City
- Chicago
- Time Zone
- Central Time
Illinois
(773) Area Code 773 — Chicago, Illinois
773 Area Code – Chicago, Illinois: Location, Time Zone & History
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Map of Area Code 773
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History & Cultural Notes
Wrigley Field has stood in the Lakeview neighborhood since 1914, making it the second-oldest ballpark in Major League Baseball, and it sits squarely inside area code 773. The code was carved out of Chicago's original 312 on October 12, 1996, taking every residential neighborhood outside the Loop -- Lincoln Park, Wicker Park, Logan Square, Humboldt Park, Hyde Park, Bronzeville, and Englewood among them -- while downtown kept 312 for itself. Permissive dialing between the two areas lasted only until January 11, 1997.
Growth on Chicago's North and South Sides eventually outpaced even that split. On November 7, 2009, area code 872 arrived as an all-services overlay stretched across both 312 and 773, and eleven-digit local dialing became the rule from that same date onward.
Beyond baseball, 773 carries real institutional weight:
- The University of Chicago anchors Hyde Park's academic and cultural life.
- University of Chicago Medical Center and Advocate Illinois Masonic Medical Center serve as major healthcare hubs.
- Neighborhood commercial corridors on both the North and South Sides sustain a dense, independent arts and retail scene.
Bordered by 312, 708, 847, and Indiana's 219, 773 remains the numbering identity of Chicago's neighborhoods rather than its skyline.