Illinois · Central Time
464 Area Code
Area code 464 is in Illinois, serving western and southern Chicago suburbs in Cook and Will counties. It is in the Central Time zone. It shares its territory with overlay code 708, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 464 area code?
464 is a Illinois area code covering western and southern Chicago suburbs in Cook and Will counties. In the wider directory it sits in the Midwest region.
Cities in the 464 area code
- Cicero
- Oak Lawn
- Berwyn
- Orland Park
- Tinley Park
- Oak Park
- Calumet City
- Chicago Heights
- Oak Forest
- Evergreen Park
- Burbank
- Harvey
- Blue Island
- Maywood
Counties served by 464
Cook County and Will County.
464 overlay codes and dialing
The 464 territory is covered by an overlay of 2 area codes: 464, 708. All of them serve the same geographic area, and the original code is 708. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 464 area code
464 went into service on January 21, 2022 as an overlay of 708, relieving number exhaustion in the Cicero area. Rather than splitting the region, the overlay lets existing customers keep their numbers while new lines draw from the added code. Learn more in our overlay guide.
Is 464 a scam or spam risk?
464 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 464 number on your screen is no guarantee the caller is in Cicero, IL or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Illinois area codes
Explore more
See every code in Illinois, compare codes across the Midwest region, or view all Central Time codes. You can also browse the 4XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
464 area code FAQ
Where is the 464 area code?
The 464 area code is in Illinois, covering western and southern Chicago suburbs in Cook and Will counties, in the Midwest region.
What cities are in the 464 area code?
Cities in the 464 area code include Cicero, Oak Lawn, Berwyn, Orland Park, Tinley Park, Oak Park, Calumet City, Chicago Heights, Oak Forest and Evergreen Park.
What time zone is 464 in?
464 is in the Central Time zone.
What is the overlay for the 464 area code?
464 shares its territory with 708. Both codes (464, 708) serve the same area, so 10-digit dialing is required for every call.
When did the 464 area code start?
464 went into service on January 21, 2022 as an overlay of 708.
Do I have to dial 10 digits for 464?
Yes. Because 464 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 464 a toll-free or premium code?
No. 464 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.