Tennessee · Area code
Area Code 423Chattanooga, TN
Area code 423 is in Tennessee, United States, and serves Chattanooga, Johnson City, Kingsport, Cleveland and Morristown and other places nearby. Its time zone is Central Time.
Area code 423 at a glance
- Area code
- 423
- Main place
- Chattanooga, TN
- State
- Tennessee
- Country
- 🇺🇸 United States
- Country calling code
- +1
- Time zone
- Central Time (America/Chicago)
- Dial from abroad
- +1 423 XXX XXXX
- Dial inside the US and Canada
- 1 423 XXX XXXX
Cities and places in area code 423
The places phone numbers beginning 423 were issued in, the most common first.
- Chattanooga, TN
- Johnson City, TN
- Kingsport, TN
- Cleveland, TN
- Morristown, TN
- Bristol, TN
- Greeneville, TN
- Athens, TN
- Elizabethton, TN
- Hixson, TN
- Newport, TN
- Blountville, TN
- Dayton, TN
- Jonesborough, TN
- La Follette, TN
- Oneida, TN
- Ooltewah, TN
- Rogersville, TN
- Soddy-Daisy, TN
- Benton, TN
- Bluff City, TN
- Bulls Gap, TN
- Church Hill, TN
- Copperhill, TN
- Cosby, TN
- Decatur, TN
- Dunlap, TN
- Erwin, TN
- Etowah, TN
- Gray, TN
- Hampton, TN
- Harrison, TN
- Harrogate, TN
- Huntsville, TN
- Jasper, TN
- Jellico, TN
- Madisonville, TN
- Mosheim, TN
- Mountain City, TN
- Pikeville, TN
Look up a 423 number
Enter a full number with area code 423: it shows the line type, place, network and time zone, and every way to write it. Free and private.
Area code 423: frequently asked questions
Where is area code 423?
Area code 423 is in Tennessee, United States. It serves places including Chattanooga, Johnson City, Kingsport, Cleveland, Morristown, Bristol, Greeneville and Athens.
What time zone is area code 423 in?
Area code 423 is on Central Time. A number with this area code can belong to someone living anywhere, so the time zone tells you where the number was issued rather than where the person is.
Which country is area code 423 in?
Area code 423 belongs to the United States, part of the North American Numbering Plan. Country code +1 is shared by the United States, Canada and many Caribbean and Pacific countries; the area code decides which one a number is in.
How do I call a 423 number from another country?
Dial your country's international access code (or press + on a mobile phone), then 1, then 423, then the seven-digit number: +1 423 followed by the number. Inside the United States and Canada, dial 1 and the ten digits.
Can I tell who is calling from an area code?
No. The area code only shows where a number was first issued. People keep their numbers when they move, mobile numbers work anywhere, and callers can disguise the number they call from. To see what the numbering plan says about a specific number, use the free phone number lookup.
What other area codes are in Tennessee?
Other area codes in Tennessee include 615, 629, 731, 865, 901 and 931.