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Area code 865

Area code 865 Knoxville, Tennessee

Area code 865 is in Tennessee, with numbers assigned in Knoxville, Maryville, Oak Ridge and 19 more places. It’s 12:14 AM there now.

State
Tennessee8 area codes in Tennessee
Time zone
Eastern12:14 AM there now
Exchanges
50622 places
Overlay
NoneThe only code for its area
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Where area code 865 is

Numbers in 865 are assigned to 22 places in 12 counties: Knox County, Roane County, Blount County, Anderson County, Loudon County, Sevier County, plus 6 more.

Knoxville holds most of them: 55% of the exchanges.

  • Knoxville276
  • Maryville41
  • Oak Ridge21
  • Sevierville14
  • Lenoir City11
  • Kingston11
  • Mascot8
  • Clinton8
  • Harriman7
  • Gatlinburg7
  • Powell7
  • Loudon6
  • Jefferson City6
  • Greenback5
  • Dandridge5
  • Rockwood4
  • Bean Station4
  • Oliver Springs4
  • Norris4
  • Maynardville4
  • Rutledge3
  • White Pine3

Phone companies in 865

506 blocks of numbers in 865 are held by 44 phone companies. The most belong to AT&T (122), Verizon Wireless (50) and AT&T Mobility (48).

A large share, about 40%, belongs to competitive and internet phone carriers; wireless networks hold 30% and local phone and cable companies 31%.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

865 went into service in 1999, added to the area of 423.

78 new exchanges were assigned since 2021, the latest in August 2026.

Calling 865

It’s 12:14 AM Eastern time in 865 right now.

From elsewhere in the U.S., dial 1, 865 and the 7-digit number.

Nearby area codes

Tennessee has 8 area codes: 423, 615, 629, 729, 731, 865, 901 and 931.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 865 area code

Map of the 865 area code around Knoxville, Maryville and Oak Ridge, Tennessee.

Interactive map © OpenStreetMap contributors

Cities on the map

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Questions about 865

Where is area code 865?

In Tennessee, covering Knoxville, Maryville and Oak Ridge and other places across 12 counties.

What time zone is 865 in?

Eastern time. It was 12:14 AM there when this page loaded.

Is 865 an overlay?

No. 865 is the only area code for its area right now.

Which phone companies have 865 numbers?

44 companies hold blocks; the most belong to AT&T, Verizon Wireless and AT&T Mobility. About 30% of blocks are wireless.

Is 865 running out of numbers?

Not on record. 78 new exchanges have been assigned since 2021.