Bluff, Tennessee

No ZIP code carries the name of Bluff, Tennessee, in Sullivan County; the nearest ZIP codes are 37618 and 37686, in area code 423, with 729 as an overlay.

Nearest ZIP: 37618, 37686
Area codes: 423, 729
County: Sullivan County
State: Tennessee
Coordinates: 36.4595, -82.2779

Nearest ZIP codes to Bluff

These are the ZIP codes nearest to Bluff, each listed with the post office it is named after.

ZIP code	Post office	County	Area codes
37618	Bluff City	Sullivan County	423, 729
37686	Piney Flats	Sullivan County	423, 729

Area codes for Bluff

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 Bluff

Bluff City4.2 km (2.6 mi)
Piney Flats4.7 km (2.9 mi)
Watauga10 km (6.2 mi)
Biltmore11.3 km (7.0 mi)
Blountville11.5 km (7.1 mi)
Walnut Hill12.1 km (7.5 mi)
Bristol12.3 km (7.6 mi)
Hunter13.1 km (8.1 mi)

Local numbers in area code 423

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