Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — AREA-CODES/TN

Tennessee area codes

Tennessee has 8 area codes covering 6 areas. In 2 of them several codes overlay the same ground, so a number there can have any of them: 615 and 629 around Nashville; 423 and 729 around Chattanooga. The newest, 729, came into service in 2025.

Area codes
8
Areas
6
Overlay areas
2
Time zone
Eastern and Central
Newest
729 (2025)

Somewhere in Tennessee now? What area code am I in? answers from your location.

Every Tennessee area code

Tennessee area codes by area

Codes that overlay one another share one area. The places listed have a telephone rate centre of their own in NANPA's records, largest first; each links to its ZIP codes.

615, 629 — Nashville

615 (1954) was here first; 629 (2015) overlays it, so a number from anywhere in the area can have any of them.

38 places, the largest 36 here (all of them on 615):

8 counties:

423, 729 — Chattanooga

423 (1995) was here first; 729 (2025) overlays it, so a number from anywhere in the area can have any of them.

63 places, the largest 36 here (all of them on 423):

8 counties:

901 — Memphis

11 places:

3 counties:

931 — Clarksville

85 places, the largest 36 here (all of them on 931):

8 counties:

865 — Knoxville

25 places:

8 counties:

731 — Jackson

65 places, the largest 36 here (all of them on 731):

8 counties:

Area codes of the largest cities in Tennessee

Largest cities in Tennessee and their area codes
CityArea codesPopulation
Nashville 615, 629 690,130
Memphis 901 618,980
Knoxville 865 195,185
Chattanooga 423 185,783
Clarksville 931 176,456
Murfreesboro 615, 629 161,445
Antioch † 615, 629 105,212
Franklin 615, 629 87,133
Cordova † 901 82,663
Johnson City 423 72,222
Jackson 731 68,435
Hendersonville 615, 629 63,091
Bartlett † 901 56,876
Smyrna 615, 629 56,692
Kingsport 423 56,262
Spring Hill 931 55,765
Collierville 901 51,515
Cleveland 423 48,829
Gallatin 615, 629 48,532
Brentwood † 615, 629 45,556
Columbia 931 45,441
Hixson † 423 45,101
Lebanon 615, 629 44,788
Ooltewah 423 42,093
Mount Juliet 615, 629 42,073
Germantown † 901 40,673
Madison † 615, 629 40,615
La Vergne 615, 629 40,243
Hermitage † 615, 629 39,017
Cookeville 931 36,088
Oak Ridge 865 32,693
Maryville 865 32,392
Morristown 423 31,527
Bristol 423 27,636
Shelbyville 931 24,661
Farragut † 865 24,634
Old Hickory 615, 629 22,575
East Ridge † 423 22,070
Tullahoma 931 21,103
Springfield 615, 629 19,255

† NANPA lists no rate centre for the town itself; these are the codes of the nearest one. A town on an area-code boundary can differ from its neighbour.

Questions about Tennessee area codes

How many area codes does Tennessee have?

8: 423, 615, 629, 729, 731, 865, 901 and 931. 4 of them are in overlay areas, where several codes share the same ground.

What is the newest area code in Tennessee?

729, in service since 2025. It overlays 423.

What are the area codes of the largest cities in Tennessee?

Nashville: 615 and 629. Memphis: 901. Knoxville: 865. Chattanooga: 423. Clarksville: 931.

What time zone are Tennessee area codes in?

Eastern and Central time.

Every US area code · Tennessee ZIP codes

Source: NANPA NPA database and central office code assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Tennessee area codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-codes/tn

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