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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.
Chicago, IL has the following Exchanges (NXX) List of all area codes in Chicago, IL. Chicago, IL area code map, list, and phone lookup.
Area code 312 is a telephone area code in the North American Numbering Plan for the city of Chicago, including downtown, the Chicago Loop, and its immediate environs. The numbering plan area is completely surrounded by area code 773, which serves the rest of Chicago.
Chicago, Illinois Information. The Chicago area code is 224 or 312 or 630 or 708 or 773 or 847 or 872. The current time in Chicago, Illinois is 20:09PM (08:09PM) Chicago, Illinois is located in Cook county. Chicago, Illinois observes Daylight Savings Time.
Area code 312 covers the central city of Chicago, Illinois, and includes the Chicago loop extending up to the near north side. The first zip codes, 60601-60607, are assigned for the loop. 60610 and 60611 serve the Gold Coast and Streeterville.
Lookup area code information for CHICAGO, IL. Get the NPA NXX (area code and prefix) as well as much more data for CHICAGO, IL.
312 is an area code located in the state of Illinois, US. The largest city it serves is Chicago. Location, time zone and map of the 312 area code
Area code 312 serves the state of Illinois. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 312 is a General Purpose Code. 312 service area does overlap with 872 area codes.
Area code 872 is a telephone area code in the North American Numbering Plan for Chicago in the U.S. state of Illinois. It is an overlay code for a numbering plan area that comprises those of area codes 312 and 773 .
773 Area Code. State: Area Code 773 is located in the state of Illinois. Illinois. Major Cities: The 3 major cities covered by Area Code 773, ordered by Census 2020 Population. Chicago, Cicero, Evanston [See All] Major Counties: The 3 major counties covered by Area Code 773, ordered by Census 2020 Population.