Zip Area Code

Area code 729

Area code 729 is a Tennessee area code, in service since September 5, 2025.

It was added as an overlay on 423: both codes serve the same area, so neighbors can have numbers in either one.

Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

It spans more than one time zone: Eastern Time and Central Time.

In service since
September 5, 2025
Overlays
423
Local dialing
ten digits; dialing 1 plus ten digits also works
Time zone
Eastern Time and Central Time
ZIP codes
155

Map

Map of the 729 area codeThe shaded area shows where 729 numbers are rated, with the neighboring area codes outlined around it.706770256540270606704828336803864615931865304276ChattanoogaJohnson CityBristolAthensGreenevilleLa FollettePikevilleSoddy Daisy
Approximate 729 coverage, drawn from U.S. Census ZIP code areas and NANPA rate centers. Dashed lines are state borders.

Main cities in area code 729

Overlays and neighboring area codes

Overlay, serving the same area: 423.

Neighboring area codes: 706, 770, 205, 256, 540, 270, 606, 704, 828, 336, 803, 864, 615, 931, 865, 304, 276.

Counties in area code 729

Towns in area code 729

And 122 more towns: every town in Tennessee.