Lookup › Area code 423
423 Area Code — Chattanooga, Tennessee
Area code 423 serves Chattanooga, TN.
Most looked-up 423 numbers
- 423-447-6706
- 423-364-5411
- 423-972-4011
- 423-849-0672
- 423-309-2043
- 423-413-1799
- 423-426-3667
- 423-580-3321
- 423-471-4066
- 423-807-0035
- 423-333-0347
- 423-906-2076
Phone prefixes in 423
Carriers serving 423
- Verizon (5 numbers)
- At&t (3 numbers)
- Onvoy, LLC - Tn (2 numbers)
- Bandwidth (1 numbers)
- Radiantiq, LLC (1 numbers)
- Bledsoe Telephone Cooperative (1 numbers)
Frequently asked questions
Where is area code 423?
Area code 423 serves Chattanooga, TN.
What prefixes are in area code 423?
Phone2.io tracks 13 phone prefixes in area code 423, with carrier and spam-report data on individual numbers.
More about area code 423
Area code 423 overview, history, and local numbers · Get a TN phone number
Last updated: May 10, 2026