Select a 312 area code phone number
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About Downtown Chicago
What comes to mind when you think of the 312 area code? Encompassing the historic streets of Downtown Chicago, the 312 area code evokes images (and perhaps sights, sounds, and smells) of Chicago-style hot dogs, Chicago-style deep-dish pizza, jazz music, and unique architecture that’s personified by the famous Sears Tower. While exploring the 312 area code, you’ll discover a hidden history of one of America’s most famous cities. On a sunny day, the 312 area code offers ample outdoor attractions, including Navy Pier, Millennium Park, Cloud Gate, and Lake Michigan. Culture and history lovers can take in the sights from a Chicago River tour or a prohibition tour. But, don’t forget to walk the Magnificent Mile and hit up a Cubbies game.
Areas Served
The 312 area code is one of the smallest area codes in the country, and one of the few that is actually an enclave area code, meaning that it’s completely surrounded by other numbering plans. Covering just a few square miles, the 312 area code stretches to serve people and businesses from North Avenue in the north and 35th Street in the south. From east to west, it covers Western Avenue and Lake Michigan.
The History of 312
As one of the smallest area codes in the country, the 312 area code is also one of the oldest. Originally introduced as part of the North American Numbering Plan in 1947, the 312 area code originally served all of Greater Chicago back in its day. Beginning in 1989, however, the area code was split and the land that the 312 area code covers began to reduce little by little. After the 708 area code and the 847 area code were introduced to cover Chicago’s northern and southern suburbs, the 312 area code was relegated to serve just Downtown Chicago. It’s since been split again, making Chicago one of the few cities in the country that’s split into different area codes (similar to 310 area code for Los Angeles and the 213 area code for Downtown Los Angeles). Because of this, however, it holds a pretty powerful prominence in pop culture; the 312 area code conjures images of real Downtown Chicago and all of the associations that come with it.
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