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312: Chicago, the central city area including the Chicago Loop and the Near North Side. 618/730: Southern Illinois, including Carbondale and most of the Metro East region of St. Louis suburbs in Illinois.
Chicago, IL Area Codes: List, Map, and Phone Lookup. The city of Chicago is in the state of Illinois. It has the following active area codes:
Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.
- 368, 403, 568, 587, 780, 825
- 204, 431, 584
- 236, 250, 257, 604, 672, 778
- 428, 506
Jan 17, 2022 · The 464 area code will be issued starting Friday in the 708 area code region, which serves western and southern Cook County and eastern and southern Will County.
- David Struett
- GA Reporter
- dstruett@suntimes.com
Aug 17, 2021 · CHICAGO (CBS)-- Get ready, south suburbs – you're getting a new area code. When 708 numbers run out, 464 phone numbers will be issued. This is not expected until January.
Rather than divide the city by a north–south area code, the central business district retained the 312 area code, while the remainder of the city took the new 773 code. In 2002, the 847 area code was supplemented with the overlay area code 224.
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* 312: Chicago, the central city area including the Chicago Loop and the Near North Side. * 618: Southern Illinois, including Carbondale and most of the Metro East region of St. Louis suburbs in Illinois.
