773 Area Code: Chicago IL Location, Time Zone & Scam Check (2026)

The 773 area code covers the residential neighborhoods of Chicago, Illinois — a ring of some of the most culturally rich, historically significant, and architecturally important neighborhoods in America, surrounding the compact downtown core that kept the iconic 312.

Created on October 12, 1996, when the Illinois Commerce Commission split 312 into two codes, 773 inherited the neighborhoods where Chicago actually lives — from the blues clubs of Bronzeville to the indie scene of Wicker Park, from Obama's Hyde Park home to the ivy-covered walls of Wrigley Field. This is the area code where house music was invented, where the atomic age began, and where tavern-style pizza (not deep-dish) is what locals actually eat.

This guide covers the 773 area code's location, the dramatic 312 split story, Central time zone details, scam risks, and the cultural layers that make Chicago's neighborhoods unlike anywhere else.

Neighborhoods in the 773 Area Code

When 312 split in 1996, downtown kept the original code — roughly bounded by North Avenue, Western Avenue, 31st Street, and Lake Michigan (~16 square miles). Everything else became 773. That means 773 covers the vast majority of Chicago's 77 community areas — the famous neighborhood system created by University of Chicago sociologists in the 1920s that's unique in the United States.

Chicago Area Code Timeline

Chicago's area code history is a story of explosive growth. The original 312 covered all of Chicagoland in 1947 — then the city's population boom, followed by the 1990s cell phone revolution, shattered it into pieces:

The 312 Split: "773? Is That an Area Code or an Airplane?"

When the Illinois Commerce Commission announced the split in November 1995, the reaction was fierce. Chicagoans saw 312 as an identity marker — an area code with personality and prestige, like 212 in Manhattan.

Crain's Chicago Business ran the headline "773? IS THAT AN AREA CODE OR AN AIRPLANE?" — mocking the new number before it even launched. T-shirts appeared. After the 1989 suburbs split, Chicagoans had printed shirts reading "Go Home, 708ers!" Now the same status anxiety was playing out within the city itself.

Critics noted that Chicago — already deeply segregated by race, neighborhoods, sports affiliations, and economic class — was getting yet another dividing line, this time drawn by phone numbers. Downtown 312 became the "power area code," while 773 inherited the neighborhoods where the city's culture actually lived.

Three Music Genres Born in the 773

The Real Chicago Food: Not What You Think

Engineering Marvels of the 773

The Second City: Where Comedy Lives

The Second City opened on December 16, 1959, at 1842 North Wells Street. Its roots go deeper: in 1955, University of Chicago students in Hyde Park formed the Compass Players, using theater games taught by Viola Spolin. This was the direct precursor to The Second City and the birth of modern improv.

Since SNL began in 1975, the show has hired 50+ cast members and writers from The Second City, including: John Belushi, Dan Aykroyd, Bill Murray, John Candy, Chris Farley, Mike Myers, Steve Carell, Tina Fey, Amy Poehler, Stephen Colbert, and Julia Louis-Dreyfus.

The 1893 World's Fair: Chicago Changes Everything

The World's Columbian Exposition opened in Jackson Park (a 773 neighborhood) on May 1, 1893, with over 150,000 visitors per day across six months.

Pullman: America's First Planned Industrial Town

Built in 1880 on 4,000 acres, Pullman was the first planned industrial community in the United States. Created by George M. Pullman to house workers building his luxury railroad cars, the community included 1,500+ company-owned houses with amenities unprecedented for working-class housing: indoor plumbing, gas, garbage pickup, and sewers.

The Pullman Strike of 1894 was a watershed moment in American labor history. President Obama designated Pullman a National Monument in 2015 — the first and only National Parks designation in Chicago.

Bronzeville: The Black Metropolis

During the Great Migration (starting 1916), hundreds of thousands of Black Americans moved to Chicago's South Side. Restricted by discriminatory housing policies, the community was confined to a narrow strip — creating a cultural density that rivaled Harlem.

Bronzeville was home to Gwendolyn Brooks (first Black Pulitzer Prize winner), Richard Wright (Native Son), Louis Armstrong, Bessie Coleman (first Black woman to hold a pilot's license), and Ida B. Wells. The name "Bronzeville" was proposed by editor James J. Gentry as a less derisive alternative to the media's "Black Belt" and "Black Ghetto."

Chicago Icons

Why "Windy City" Has Nothing to Do With Wind

The nickname is not primarily about weather. Nineteenth-century journalists — especially from rival New York City — mocked Chicago politicians as "full of hot air." The most famous attribution is to New York Sun editor Charles A. Dana in 1893, who used it to ridicule Chicago's boastful campaigning to host the World's Fair.

Etymologist Barry Popik found evidence the name was established by the 1870s, used by rival Midwest cities as both a literal weather reference and a metaphorical jab at Chicago's braggadocio. The insult was eventually reclaimed by Chicagoans as a point of pride.

Related Area Codes

Understanding 773 in the Chicago area code landscape:

Frequently Asked Questions

Explore More Area Code Guides