Birchwood, Tennessee
Birchwood, Tennessee, in Hamilton County, has ZIP code 37308 and area code 423, with 729 as an overlay.
- ZIP code
- 37308
- Area codes
- 423, 729
- County
- Hamilton County
- State
- Tennessee
- Coordinates
- 35.3520, -84.9618
ZIP codes in Birchwood
Area codes for Birchwood
- 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 Birchwood
- Georgetown7.9 km (4.9 mi)
- Sale Creek13.3 km (8.3 mi)
- Hopewell13.3 km (8.3 mi)
- Bakewell16 km (9.9 mi)
- Dayton17.1 km (11 mi)
- Calhoun20.7 km (13 mi)
- Charleston20.7 km (13 mi)
- Flat Top Mountain21.7 km (13 mi)
Local numbers in area code 423
Looking for a phone number with a Birchwood area code? These 423 numbers are for sale through Exclusive Digits. Portable to Verizon, AT&T, T-Mobile and all major US carriers.
- (423) 777-8766Chattanooga, TNAlso spells UPON$79View & buy
- (423) 777-8768Chattanooga, TN$79View & buy
- (423) 888-0876Chattanooga, TN$79View & buy
- (423) 888-3215Chattanooga, TN$79View & buy
- (423) 888-8768Chattanooga, TN$79View & buy
- (423) 888-9874Chattanooga, TN$79View & buy
- (423) 460-8887Mountain City, TN$89View & buy
- (423) 520-8882Madisonville, TN$89View & buy
- (423) 520-8883Madisonville, TN$89View & buy
- (423) 520-8884Madisonville, TN$89View & buy
- (423) 520-8886Madisonville, TN$89View & buy
- (423) 520-8887Madisonville, TN$89View & buy
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