464 area code — Oak Forest South, IL geographic

Data: NANPA public reports, current as of July 28, 2026.

The 464 area code covers Oak Forest South, Illinois, Central time zone, and dates back to January 21, 2022. It is part of the 464/708 overlay complex — these codes share the same territory. Note that porting and VoIP mean a 464 number can be used from anywhere — the code marks where the number was assigned.

103 central-office prefixes are currently active in this code, spread across 11 code-holding carriers. Thousands-block pooling applies to 103 prefixes, so a single prefix can belong to several carriers. Its prefixes map to 24 distinct rate centers.

NANPA projects numbering capacity for the 464/708 complex to exhaust in 2Q 2053.

Dialing: 1+10D locally, 1+10D to other codes.

To check where a specific 464 number was issued, look up its six-digit prefix; to check who is actually calling, ignore the display and verify through an official callback number — caller ID is assertable and routinely spoofed.

464 was created from 708 in 2022.

Largest localities in 464

FAQ

Why am I getting spam calls from 464 numbers?

Scammers spoof recognizable area codes so calls look local or familiar. A displayed 464 number does not prove the call originated there — see our guide to spotting spoofed calls.

Where is a 464 number from?

464 is assigned to Oak Forest South and surrounding areas of Illinois in the Central time zone. The three digits after the area code (the prefix) narrow it down to a rate center.

Is 464 a toll-free number?

No. 464 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.

Why do 708 and 464 cover the same place?

They are overlays: when a code runs low on numbers, a new code is added over the same territory instead of splitting it. The 464/708 complex shares one service area, and local calls are dialed with 10 digits.