Caller ID for
Area code 729
Area code 729 Tennessee
Area code 729 is one of the newer area codes, added in 2025 to Tennessee. It’s 1:09 AM there now.
- State
- Tennessee8 area codes in Tennessee
- Time zone
- Eastern and CentralSplit between 2 zones
- Exchanges
- 0
- Overlay
- 423Same area, 10-digit dialing
- No sign-up
- We never contact the number
- Spam risk included
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Where area code 729 is
History and overlays
729 went into service in 2025, added to the area of 423.
423 (since 1995) shares the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.
Calling 729
729 spans the Eastern and Central time zones: right now it’s 1:09 AM Eastern and 12:09 AM Central. Check which side of the line someone is on before calling early or late.
From elsewhere in the U.S., dial 1, 729 and the 7-digit number; inside the area, all 10 digits too.
Nearby area codes
Tennessee has 8 area codes: 423, 615, 629, 729, 731, 865, 901 and 931.
From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.
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Questions about 729
Where is area code 729?
In Tennessee.
What time zone is 729 in?
Two: Eastern and Central. Right now it’s 1:09 AM Eastern and 12:09 AM Central.
Is 729 an overlay?
Yes. 423 serves the same area, so dial all 10 digits for local calls.
Is 729 running out of numbers?
Not on record, and no new exchanges have been needed since 2021.