Area code
Area code 865 — Knoxville, TN
Tennessee · in service since November 1, 1999
Area code 865 covers the Knoxville, TN area. It was created from area code 423 on November 1, 1999 and no other code overlays it.
Local time in Knoxville
Spam reports from Sep 23 – Oct 22, 2026
Average #116 of 461 codes
673 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneEastern Time
- Local calls10 digits
- Prefixes520 assigned
- Runs out~4Q 2046
- Unwanted call?Block & report
Spam call reports about 865 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 33 |
| Sep 14 | 128 |
| Sep 21 | 164 |
| Sep 28 | 236 |
| Oct 5 | 101 |
| Oct 12 | 87 |
| Oct 19 (4 days) | 129 |
Compared with all codes
- Robocalls
- 78%all codes 75%
- Callers with the same code
- 78%all codes 35%
- Rank by complaints
- #116of 461 · middle half
- FCC complaints, Oct 2025 – Sep 2026
- 22026 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Medical & prescriptions | 121 14% | |
| Calls pretending to be government, businesses, or family and friends | 96 11% | |
| Dropped call or no message | 51 6% | |
| Reducing your debt (credit cards, mortgage, student loans) | 47 5% | |
| Warranties & protection plans | 17 2% | |
| Home improvement & cleaning | 8 1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Tennessee | 741 84% | |
| Florida | 21 2% | |
| Illinois | 19 2% | |
| North Carolina | 12 1% | |
| New Jersey | 11 1% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 865 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| KNOXVILLE | Knoxville | Knox County | 276 |
| MARYVILLE | Maryville | Blount County | 41 |
| OAK RIDGE | Oak Ridge | spans 2 counties | 21 |
| SEVIERVL | Sevierville | Sevier County | 14 |
| KINGSTON | Kingston | Roane County | 11 |
| LENOIRCITY | Lenoir City | Loudon County | 11 |
| CONCORD | — | — | 10 |
| CLINTON | Clinton | Anderson County | 8 |
| MASCOT | Mascot | Knox County | 8 |
| GATLINBURG | Gatlinburg | Sevier County | 7 |
Plus 23 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
Is 865 running out of numbers?
Previous forecast (October 2025): 2065, moved earlier by 19 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 865 prefixes
The five largest of 48 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| South Central Bell Tel | 122 23% | |
| Verizon Wireless | 50 10% | |
| New Cingular Wireless PCS, LLC | 48 9% | |
| Paetec Itel, LLC | 44 8% | |
| Onvoy, LLC | 35 7% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 865
What area code is 865?
A Tennessee area code, in service since November 1, 1999.
Where is 865 area code, and what time zone is it in?
Knoxville, TN; Eastern Time.
Why am I getting spam calls from 865?
673 FTC complaints from Sep 23 – Oct 22, 2026, most often about medical & prescriptions (not verified by the FTC; caller ID can be spoofed).
Will 865 get a new area code?
NANPA forecasts exhaust in 4Q 2046; no relief planning listed.