865 Area CodeKnoxville, TN
Area code 865 covers Knoxville and nearby communities in Tennessee, in the Eastern Time (ET) zone, home to about 458,000 people across 47 cities. It overlays 423, so the same region uses both and every local call needs all ten digits.
Overview
- Major City
- Knoxville
- State
- Tennessee (TN)
- Timezone
- Eastern Time (ET)
- Current Time
- Overlay
- Yes – shares area with 423
Where is area code 865?
Area code 865 serves part of Knoxville, TN and the surrounding areas. It has a single overlay (423) that serves the same area.
Overview of the 865 Area Code
What is the 865 area code?
The 865 area code serves Knoxville, Tennessee, alongside other established area codes. When you see a 865 number, it indicates a local number within this geographic area.
Why was area code 865 created?
The 865 area code was introduced as an overlay to add numbers in Knoxville once the existing area code 423 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 865 Area Code
The 865 area code serves Knoxville and surrounding areas in Tennessee. It operates within the Eastern Time (ET) time zone. It complements the coverage of area code 423. This area code covers several key cities, including:
- Knoxville
- Oak Ridge
- Maryville
- Farragut
- Sevierville
- Alcoa
Got a call from an 865 number? It came from Knoxville, TN. Since 865 overlays with 423, every local call in the region needs all ten digits to land on the right line. Inside 865, Knoxville holds about 43% of the population; the rest is split across 46 smaller cities.
Knoxville Area Codes Overview
Knoxville is served by multiple area codes, reflecting its telecommunications needs. The 865 area code operates alongside 423. Here are the area codes serving this region:
The introduction of the 865 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 865 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Knoxville | TN | 198,722 | 3% | 100% |
| Oak Ridge | TN | 34,039 | 2% | 100% |
| Maryville | TN | 32,373 | 0% | 100% |
| Farragut | TN | 25,242 | 0% | 100% |
| Sevierville | TN | 18,231 | 1% | 100% |
| Alcoa | TN | 13,588 | 0% | 100% |
| Lenoir City | TN | 12,041 | 0% | 100% |
| Seymour | TN | 10,919 | 0% | 100% |
| Clinton | TN | 10,458 | 0% | 100% |
| Jefferson City | TN | 9,013 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 865 been reported for unwanted calls?
Yes – 514 unwanted-call complaints were reported to the FTC for numbers showing a 865 area code (May 29 – Jul 2, 2026).
- 69% robocalls
- ↑ 95% vs prior period
Most-reported subjects
- Other35%178
- Medical & prescriptions25%126
- Calls pretending to be government, businesses, or family and friends18%92
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 865?
47% assigned to a telco
- 69% Landline
- 31% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (865)200- | Wireless | Sprint Spectrum |
| (865)201- | Wireless | New Cingular Wireless Pcs |
| (865)202- | Wireless | New Cingular Wireless Pcs |
| (865)203- | Wireless | Verizon Wireless |
| (865)205- | Landline | Onvoy |
| (865)206- | Wireless | New Cingular Wireless Pcs |
| (865)207- | Wireless | Verizon Wireless |
| (865)208- | Wireless | Sprint Spectrum |
| (865)209- | Wireless | New Cingular Wireless Pcs |
| (865)210- | Wireless | Verizon Wireless |
Frequently Asked Questions about the 865 Area Code
Who called me from a 865 number?
A 865 number is assigned to Knoxville, Tennessee, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 865 code to look nearby, so a 865 number doesn't prove the caller is local. Recently, 514 unwanted-call complaints were reported to the FTC for numbers showing the 865 code (69% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 865 a scam area code?
No area code is a scam on its own. 865 is a normal, officially assigned code for Knoxville, Tennessee. Spam callers spoof local codes to raise the odds you answer, so 865 on your caller ID says nothing about who is really calling. Recently, 514 unwanted-call complaints were reported to the FTC for numbers showing the 865 code (69% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 865 area code?
Repeated calls from different 865 numbers are usually spoofing: a robocaller rotates through 865 numbers so each call looks local and slips past simple blocks. Recently, 514 unwanted-call complaints were reported to the FTC for numbers showing the 865 code (69% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 865 number?
If you aren't expecting a 865 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 865 area code?
Block a single 865 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 865 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 865?
Area code 865 covers Knoxville and the surrounding area in Tennessee, spanning 47 cities with about 457,591 residents. It shares its area with overlay code 423.
Is 865 a real area code?
Yes. 865 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Knoxville, Tennessee. A real code can still show up on spoofed spam calls, so treat unknown 865 calls with normal caution.
What timezone is the 865 area code in?
The 865 area code is in the Eastern Time (ET). Because a number can be kept when someone moves or switches to VoIP, a specific 865 caller may not be in that zone.
How do I call a 865 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 865 and the seven-digit number. From a mobile phone you can usually just enter +1 865 followed by the number and let the phone add the exit code for you.