Kingsport, Tennessee

Kingsport, Tennessee, in Sullivan County, has ZIP codes 37660, 37662, 37663, 37664, 37665 and 37669 and area code 423, with 729 as an overlay.

ZIP codes: 37660, 37662, 37663, 37664 …
Area codes: 423, 729
County: Sullivan County
State: Tennessee
Coordinates: 36.5362, -82.5432

ZIP codes in Kingsport

ZIP code	Post office	County	Area codes
37660	Kingsport	Sullivan County	423, 729
37662^*	Kingsport	Sullivan County	423, 729
37663	Kingsport	Sullivan County	423, 729
37664	Kingsport	Sullivan County	423, 729
37665	Kingsport	Sullivan County	423, 729
37669^*	Kingsport	Sullivan County	423, 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 Kingsport

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 Kingsport

Bloomingdale6.1 km (3.8 mi)
Colonial Heights6.6 km (4.1 mi)
Sullivan Gardens6.9 km (4.3 mi)
Orebank7.4 km (4.6 mi)
Mount Carmel10.3 km (6.4 mi)
Spurgeon12.6 km (7.8 mi)
Gray14.1 km (8.8 mi)
Fall Branch15.3 km (9.5 mi)

Local numbers in area code 423

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