The 464 area code covers the same area as 708, including La Grange, Chicago Heights and 33 more places in Illinois.
Area code 464 is in Illinois, on Central Time. In the 464 area, phone numbers are given out most in Cook County, then DuPage and Will counties. It has been in service since January 21, 2022. 708 covers the same area, so two neighbours can have different area codes.
- Where
- 4 counties in Illinois, mostly Cook County, DuPage County and Will County
- Time zone
- Central Time
- In service since
- January 21, 2022
- Shares its area with
- 708 (since 1989)
- Prefixes in use
- 111
- How to dial
- Local calls need 1, then the area code, then the number: 1-464-555-0142.
Find out who called you from a 464 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (464) number is on today, use our free carrier lookup.
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Forrest holds 18% of the phone prefixes in area code 464.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 111 prefixes in use shows where 464 numbers are actually given out.
- Forrest20 prefixes, 18%
- La Grange19 prefixes, 17%
- Cicero9 prefixes, 8%
- Blue Island8 prefixes, 7%
- Chicago Heights6 prefixes, 5%
- Harvey3 prefixes, 3%
- Orland Park3 prefixes, 3%
- Palos Park2 prefixes, 2%
Also served: Orland Park, Harvey, Summit Argo and Cicero and 23 smaller places.
AT&T Mobility holds 51% of the phone number prefixes in area code 464, more than all other carriers combined.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 111 prefixes in use in 464 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| AT&T MobilityMobile network | 57 | 51% |
| Fractel | 14 | 13% |
| Ton80 Communications | 5 | 5% |
| T-MobileMobile network | 4 | 4% |
| BandwidthSupplies numbers to VoIP and app-based phone services | 2 | 2% |
| EON Telecom | 2 | 2% |
| 4 other carriers | 27 | 24% |
100% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
464 started in 2022 as an overlay on 708, and its ground has not changed since.
2022
464 starts on January 21, 2022, as an overlay on 708: new numbers on the same ground.
A 464 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 464 are 312, 630 and 847.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 464.
Where is area code 464?
464 covers La Grange, Chicago Heights, Blue Island and Roselle and 31 more places in Illinois. In the 464 area, phone numbers are given out most in Cook County, then DuPage and Will counties.
What state is area code 464 in?
Illinois. 464 is an Illinois area code on Central Time.
What cities use area code 464?
The places holding the most 464 prefixes are La Grange, Chicago Heights, Blue Island, Roselle, Maywood, Oak Lawn, Tinley Park and Northbrook, out of 35 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 464?
No single phone company owns 464. NANPA's records show AT&T Mobility holds the most 464 prefixes, 57 of 111, followed by Fractel and Ton80 Communications. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 464 in?
464 is on Central Time.
When did area code 464 start?
464 went into service on January 21, 2022, as an overlay on 708: new numbers for the same area.
Is 464 the same area as 708?
Yes. 708 (since 1989) covers the same ground as 464. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 464 number?
Local calls need 1, then the area code, then the number: 1-464-555-0142.
Is 464 a toll-free number?
No. 464 is a regular area code for La Grange and Chicago Heights in Illinois, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 464?
The closest are 312/773/872 (Chicago, Illinois), 630/331 (Roselle, Illinois), 847/224 (Northbrook, Illinois) and 815/779 (Rockford, Illinois), measured between the centres of each area.
Who called me from a 464 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 464 a scam?
464 is a real Illinois area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.