State
Area Code 423
Chattanooga, Johnson City, Bristol, Tennessee
Local time now
…
Time zone
Eastern + Central
Main cities
Chattanooga, Johnson City, Bristol, Cleveland, Kingsport, Morristown
Overlays
In service since
1995
When you can make sales calls to 423 numbers
| Every day | 8 AM – 9 PM (federal rule) |
In the called person's local time. Guidance, not legal advice.
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Other area codes in Tennessee
Questions about area code 423
- Where is area code 423?
- Area code 423 is in Tennessee, covering Chattanooga, Johnson City, Bristol, Cleveland.
- What time zone is area code 423?
- Eastern and Central time (it covers two time zones).
- When can telemarketers call a 423 number?
- Federal rules allow sales calls from 8 AM to 9 PM local time.
- Is 423 a toll-free number?
- No. 423 is a regular area code for Tennessee. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.