Colonial Heights, Tennessee
No ZIP code carries the name of Colonial Heights, Tennessee, in Sullivan County; the nearest ZIP codes are 37663 and 37664, in area code 423, with 729 as an overlay.
- Nearest ZIP
- 37663, 37664
- Area codes
- 423, 729
- County
- Sullivan County
- State
- Tennessee
- Coordinates
- 36.4945, -82.4906
Nearest ZIP codes to Colonial Heights
These are the ZIP codes nearest to Colonial Heights, each listed with the post office it is named after.
Area codes for Colonial Heights
- 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 Colonial Heights
- Spurgeon6.2 km (3.9 mi)
- Kingsport6.6 km (4.1 mi)
- Orebank7.2 km (4.5 mi)
- Gray8.2 km (5.1 mi)
- Sullivan Gardens9 km (5.6 mi)
- Bloomingdale9.9 km (6.2 mi)
- Blountville12.1 km (7.5 mi)
- Fall Branch14.9 km (9.3 mi)
Local numbers in area code 423
Looking for a phone number with a Colonial Heights area code? These 423 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (423) 560-4888Erwin, TN$69View & buy
- (423) 560-8777Erwin, TNAlso spells USPS$69View & buy
- (423) 568-8008Niota, TN$69View & buy
- (423) 678-1881Roan Mountain, TN$69View & buy
- (423) 707-7888Elizabethton, TN$69View & buy
- (423) 719-0777Chattanooga, TN$69View & buy
- (423) 720-3888Newport, TN$69View & buy
- (423) 730-2777Riceville, TNAlso spells APPS$69View & buy
- (423) 730-2888Riceville, TN$69View & buy
- (423) 740-5777Cleveland, TN$69View & buy
- (423) 740-5888Cleveland, TN$69View & buy
- (423) 740-6888Cleveland, TN$69View & buy
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