Where is 312 area code?
312 – Chicago, IL
What area code is 312
Chicago is located on the southwestern shore of Lake Michigan, one of the 5 Great Lakes known as Great Lakes.
The third largest city in the USA (almost 2.7 million inhabitants) is considered the birthplace of the skyscrapers – in 1884, the first high – rise building in steel skeleton construction was built here-and these still shape the cityscape today.