Area code 283: where it is and who calls from it
Area code 283 is in Ohio.
Ohio (Cincinnati, Middletown, Hamilton, Lebanon, and parts of southern and southwestern Ohio)
| Where | Ohio |
|---|---|
| Time zone | Eastern Time ยท local time |
| In service since | 2023 |
| Overlay | Yes, with 513 |
| Prefixes assigned | 48 of 792 possible (6%) |
Overlay: 283 covers the same area as 513. Overlay areas use 10-digit dialing, so a seven-digit number alone won't connect, and neighbors can have different area codes.
Where 283 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 283, with how many prefixes each has.
Who holds 283 numbers
- Mobile carrier 29%
- Internet / business phone carrier 48%
- Phone company 23%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| Onvoy | Internet / business phone carrier | 20 | 42% |
| AT&T Mobility | Mobile carrier | 9 | 19% |
| Wide Voice | Phone company | 5 | 10% |
| T-Mobile (including Sprint) | Mobile carrier | 4 | 8% |
| FIVE9 | Phone company | 2 | 4% |
| Nuso | Internet / business phone carrier | 1 | 2% |
| IP Horizon | Internet / business phone carrier | 1 | 2% |
| Commio | Internet / business phone carrier | 1 | 2% |
| Waddell Solutions Group | Phone company | 1 | 2% |
| Callworks | Phone company | 1 | 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: Ohio.
Other area codes in Ohio
216 220 234 326 330 380 419 436 440 513 567 614 740 937
Got a call from 283?
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 283 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.