US Area Code
865
East Tennessee · Tennessee
Area code 865 serves Knoxville, Oak Ridge, Maryville and surrounding areas in Tennessee. Look up any 865 number below to check for spam, see caller ID, carrier, and line type.
Area Code Details
- State / Territory
- Tennessee
- Region
- East Tennessee
- Major Cities
- Knoxville, Oak Ridge, Maryville
- Timezone
- Eastern Time
- Country
- United States
- Format
- +1 (865) XXX-XXXX