678 Area Code
Georgia, USA
Local time now · Eastern Time
3:45 AM
Area code 678 is in Georgia, USA, serving Atlanta, Smyrna, Canton and Decatur. It uses Eastern Time — the time there now is 3:45 AM. 404, 470, 770 and 943 are overlays for the same area, so local calls need 10-digit dialing. In service since 1998.
| Area code | 678 |
|---|---|
| Location | Georgia, USA |
| Major cities | Atlanta, Smyrna, Canton, Decatur, Dallas |
| Time zone | Eastern Time |
| Overlay codes | 404, 470, 770, 943 |
| In service since | 1998 |
| Dialing | 1+10 digit dialing permissible at service providers discretion |
Other area codes in Georgia
Time zone converterAll area codes
Frequently asked questions
Where is area code 678?
Georgia, USA — including Atlanta, Smyrna, Canton, Decatur and Dallas.
What time zone is area code 678?
Eastern Time.
How do I call a 678 number from abroad?
Dial your international access code, then 1 (the country code), then 678 and the 7-digit number — for example +1 678 555 0100. From the UK or India dial 00 1 678 …; from Bangladesh 00 1 678 … .
Is a call from 678 a scam?
Not by itself — 678 is an ordinary geographic area code in Georgia. Numbers can be spoofed, so be careful with unexpected calls asking for money or personal details.
Sources: North American Numbering Plan Administrator (NANPA) NPA database (10/25/2026); major cities from Wikidata (CC0). An area code shows where a number was first assigned — with number portability and mobile phones, the caller may be anywhere.