Area code 865: where it is and who calls from it
Area code 865 is in Tennessee.
Tennessee (Knoxville, Alcoa, Athens, Clinton, Crossville, Dayton, Gatlinburg, Loudon, Maryville, Newport, Oak Ridge, Oliver Springs, Pigeon Forge, Rockwood, Sweetwater, etc., in east Tennessee)
| Where | Tennessee |
|---|---|
| Time zone | Eastern Time ยท local time |
| In service since | 1999 |
| Overlay | No |
| Prefixes assigned | 506 of 792 possible (64%) |
Where 865 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 865, with how many prefixes each has.
Who holds 865 numbers
- Mobile carrier 30%
- Local phone company 26%
- Internet / business phone carrier 37%
- Paging service 2%
- Phone company 4%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| AT&T (local phone) | Local phone company | 123 | 24% |
| Verizon Wireless | Mobile carrier | 50 | 10% |
| AT&T Mobility | Mobile carrier | 48 | 9% |
| Windstream (PAETEC) | Internet / business phone carrier | 44 | 9% |
| Onvoy | Internet / business phone carrier | 37 | 7% |
| T-Mobile (including Sprint) | Mobile carrier | 29 | 6% |
| Teleport Communications America | Internet / business phone carrier | 29 | 6% |
| UScellular | Mobile carrier | 19 | 4% |
| Level 3 (Lumen) | Internet / business phone carrier | 16 | 3% |
| TON80 Communications | Internet / business phone carrier | 16 | 3% |
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: Tennessee.
Other area codes in Tennessee
Got a call from 865?
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 865 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.