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Area code 773 serves Chicago, Illinois, outside the Loop and the innermost neighborhoods. Originally, all of Chicago and its suburbs used area code 312. In 1989, area code 708 was created for the suburbs, leaving the city in area code 312.
Area codes 847 (northern suburbs) and 630 (western suburbs) were created from a split of suburban area code 708 in 1996. Shortly after in 1996, area code 773 was created for the residential parts of the city of Chicago, while downtown kept area code 312.
Lookup area code 773 details: major cities and timezone. View the 773 area code map in Illinois. Find the name of any phone number in area code 773.
872 is an overlay for area code 312 and area code 773. Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau. Our area code lookup makes it easy to find area codes in Illinois. Includes area code listings of all Illinois area codes with corresponding cities.
Area code 773 is located in Illinois. Get area code location and dialing plans for all phone prefixes in area code 773.
Chicago, IL has the following Exchanges (NXX) List of all area codes in Chicago, IL. Chicago, IL area code map, list, and phone lookup.
Find 773 area code details including city, time zone, and map. Lookup area code 773 phone number, name, and location.
