StartupDigits
All area codes

Area code 423

Area code 423 is registered to Chattanooga, TN.

Registered region
Chattanooga, TN
State / province
Tennessee
Country
United States
Timezone
Eastern Time
Local time
—

Registration metadata only — this is the number's registered rate-center region, never a live location or an identity.

Get a 423 number with QuoBrowse 423 numbers

Some links on this site are partner links — if you buy through them, we may earn a commission at no extra cost to you.

About area code 423

Split from area code 615 in 1995.

Same area

These area codes cover the same area, so a number with any of them is local there.

Other area codes in Tennessee

Common questions

Which country is area code 423?
423 is a US area code, registered to Chattanooga, TN. How +1 numbers work
What time zone is area code 423 in?
Eastern Time (America/New_York). The current local time is shown above.
Who is calling me from a 423 number?
An area code only shows where a number was registered, not who is calling or where they are — calling apps let anyone use a 423 number from anywhere. Before you call back, check the number's carrier, line type and spam risk.