Area codes in Chicago, Illinois
Chicago, Illinois uses 9 area codes — 312, 708, 847, 630, 773, 224, 331, 872 and 464. The main Chicago area code is 312.
Area codes serving Chicago
- 312 — Chicago
- 708 — Chicago
- 847 — Chicago
- 630 — Chicago
- 773 — Chicago
- 224 — Chicago
- 331 — Chicago
- 872 — Chicago
- 464 — Chicago
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of June 20, 2026. Refreshed monthly.