Area code 447: where it is and who calls from it
Area code 447 is in Illinois.
Illinois (Springfield, Champaign, Decatur, Urbana, Lincoln, and parts of central Illinois)
| Where | Illinois |
|---|---|
| Time zone | Central Time ยท local time |
| In service since | 2021 |
| Overlay | Yes, with 217 |
| Prefixes assigned | 219 of 792 possible (28%) |
Overlay: 447 covers the same area as 217. Overlay areas use 10-digit dialing, so a seven-digit number alone won't connect, and neighbors can have different area codes.
Where 447 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 447, with how many prefixes each has.
Plus 59 smaller rate centers.
Who holds 447 numbers
- Mobile carrier 23%
- Internet / business phone carrier 70%
- Phone company 7%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| Onvoy | Internet / business phone carrier | 66 | 30% |
| AT&T Mobility | Mobile carrier | 38 | 17% |
| Fractel | Internet / business phone carrier | 30 | 14% |
| Teleport Communications America | Internet / business phone carrier | 8 | 4% |
| Nuso | Internet / business phone carrier | 8 | 4% |
| TON80 Communications | Internet / business phone carrier | 8 | 4% |
| Boost / Virgin Mobile | Mobile carrier | 7 | 3% |
| Commio | Internet / business phone carrier | 6 | 3% |
| Skyetel | Internet / business phone carrier | 5 | 2% |
| IP Horizon | Internet / business phone carrier | 4 | 2% |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number.
States served: Illinois.
Other area codes in Illinois
217 224 309 312 331 464 618 630 708 730 773 779 815 847 861 872
Got a call from 447?
An area code tells you where a number was first assigned, not where the caller is. People keep their numbers when they move, and scammers can fake any number. If you weren't expecting the call, let it go to voicemail.
If the call shows a 447 number that matches the first six digits of your own, that's often neighbor spoofing. Use the box above to check the full number.
Area code facts from the NANPA area code database (updated 10/06/2026); prefixes and carriers from NANPA's central office code records (updated 2026-10-10). Place description adapted from Wikipedia, CC BY-SA 4.0.