Area code 865
Area code 865 serves Knoxville and nearby parts of Tennessee, including Oak Ridge, Maryville and Sevierville. It is on Eastern Time, which observes daylight saving time.
Area code 865 at a glance
| State | Tennessee (TN) |
| Main city | Knoxville |
| Time zone | Eastern Time |
| UTC offset | UTC−5 in winter, UTC−4 in summer |
| Daylight saving time | Yes |
Cities in 865
- Knoxville
- Oak Ridge
- Maryville
- Sevierville
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call an 865 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for an 865 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 865 between |
|---|---|
| Eastern | 8:00 AM to 9:00 PM |
| Central | 7:00 AM to 8:00 PM |
| Mountain | 6:00 AM to 7:00 PM |
| Arizona | 5:00 AM to 6:00 PM |
| Pacific | 5:00 AM to 6:00 PM |
See the time in 865 without leaving your CRM
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Other area codes in Tennessee
Questions about 865
What time zone is area code 865?
Area code 865 is on Eastern Time. It observes daylight saving time.
Where is area code 865?
Area code 865 is in Tennessee. Its main city is Knoxville, and it also covers Oak Ridge, Maryville and Sevierville.
What are the legal hours to call an 865 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.