Chicago, Illinois is in the 312, 773 and 708 area codes. As the third largest city in the United States, Chicago is home to over 2.8 million citizens.
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Is your business ready to expand into the Chicago area code? Nextiva VoIP services make it possible to purchase area code 312, 773 and 708 no matter where in the world you are located. A Chicago area code is an asset to any business. The city is the biggest city in the state of Illinois, and the 3rd largest in the country. It has an estimated population of 2.7 million people and covers 234 square miles.
Area code 312, 773 and 708 contains Chicago and is located in Cook County in the northern part of Illinois. Chicago is one of the most important cities in the Midwest because of its strategic location on Lake Michigan and central location in the country.