Zip Area Code

Morristown, Tennessee

Morristown, Tennessee, in Hamblen County, has ZIP codes 37813, 37814, 37815 and 37816 and area code 423, with 729 as an overlay.

ZIP codes
37813, 37814, 37815, 37816
Area codes
423, 729
Coordinates
36.2118, -83.2844

ZIP codes in Morristown

ZIP codePost officeCountyArea codes
37813MorristownHamblen County423, 729
37814MorristownHamblen County423, 729
37815*MorristownHamblen County423, 729
37816*MorristownHamblen 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 Morristown

  • 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 Morristown