Area Code 865: Knoxville, Tennessee
865 is a telephone area code serving Tennessee, including Knoxville. It is part of the North American Numbering Plan and is dialed with the country code +1.
Numbers beginning with 865 are located in Tennessee, United States (NANP region: East). The code covers Knoxville.
How to Dial Area Code 865
| Calling from | What to dial |
|---|---|
| Anywhere in the US or Canada | 1 865 XXX-XXXX (10-digit dialing: 865 + 7-digit number) |
| Local call inside the same area code | 7-digit number in most areas; 10 digits where an overlay code is active |
| From the UK or Europe | 00 1 865 XXX XXXX |
| From Australia | 0011 1 865 XXX XXXX |
| From a mobile phone anywhere | +1 865 XXX XXXX |
Whatever country you are calling from, the + symbol replaces the exit code. Save the contact as +1 865 XXXXXXX and it will dial correctly from any phone in the world.
Time Zone for Area Code 865
Calls to a 865 number ring in the America/New_York time zone, standard offset UTC-05:00. Daylight saving time applies here, so the offset moves forward one hour from March to November.
Note: Knoxville sits east of the Central/Eastern line, which follows the eastern borders of Cumberland, Fentress and Pickett counties to its west.
Cities and Communities Served by 865
The following places fall inside the 865 calling area:
Other Area Codes in Tennessee
These codes also serve Tennessee. Area codes are assigned by the North American Numbering Plan Administration (NANPA).
| Area Code | Cities / Coverage |
|---|---|
| 423 | Chattanooga, Johnson City |
| 615 | Nashville |
| 629 | Nashville (overlay) |
| 731 | Jackson |
| 901 | Memphis |
| 931 | Clarksville, Cookeville |
See all 7 area codes in Tennessee →
Frequently Asked Questions
Where is area code 865?
Area code 865 is in Tennessee, United States. It covers Knoxville.
What time zone is area code 865 in?
Area code 865 rings in the America/New_York time zone (UTC-05:00 standard).
Do I need to dial 1 before area code 865?
Yes, for a long-distance call inside the US and Canada you dial 1 first, then 865, then the seven-digit number. The 1 is the North American long-distance trunk prefix — it is not the country code. From outside North America you dial your exit code then 1 then 865.
Is area code 865 toll-free?
No. 865 is a standard geographic area code, so normal long-distance rates apply unless your plan includes them. Toll-free NANP codes are 800, 833, 844, 855, 866, 877 and 888.