Zip Area Code

Elizabethton, Tennessee

Elizabethton, Tennessee, in Carter County, has ZIP codes 37643 and 37644 and area code 423, with 729 as an overlay.

ZIP codes
37643, 37644
Area codes
423, 729
Coordinates
36.3466, -82.2061

ZIP codes in Elizabethton

ZIP codePost officeCountyArea codes
37643ElizabethtonCarter County423, 729
37644*ElizabethtonCarter County423, 729

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Elizabethton

  • Area code 423

    In service since September 11, 1995. Shares its area with 729. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 729

    In service since September 5, 2025. Shares its area with 423. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Towns near Elizabethton