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US area code · Georgia

Area code 678

Where the 678 area code is, its overlay and how to dial a +1 678 number from anywhere.

CoversAtlanta, GeorgiaTime zoneEastern (ET)TypeOverlay
Quick answer

The 678 area code is in Atlanta, Georgia, United States (Eastern (ET)). To call from abroad: +1 678 555-0123. It is an overlay, so all 10 digits are dialled.

StateGeorgia
Main areaAtlanta
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since21-Nov-1997

The 678 area code is a geographic North American Numbering Plan (NANP) code covering Atlanta, Georgia. It has been in service since 21-Nov-1997 and sits in the Eastern (ET) time zone.

Overlay 678 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

678404470770943

How to dial a 678 number

From abroad+1 678 555-0123
Within the US / Canada1 678 555-0123
Locally (same area)678 555-0123

Cities in the 678 area code

A 678 number is usually in one of these places in Georgia — 11 counties.

Alpharetta FultonAtlanta Dekalb;FultonCandler-McAfeeCollege ParkDouglasville DouglasDuluth Fulton;GwinnettDunwoodyEast PointForest Park ClaytonGainesville HallGriffin SpaldingKennesaw CobbLawrenceville GwinnettMableton CobbMarietta CobbPeachtree City FayetteRedan DekalbRoswell FultonSandy SpringsSmyrna CobbTucker Dekalb

Other Georgia area codes

229404470478706762770912943

Frequently asked questions

Where is the 678 area code?

The 678 area code is in Atlanta, Georgia, United States (Eastern (ET)).

Is 678 an overlay area code?

Yes. 678 overlays the same region as 404, 470, 770, 943, so callers dial all 10 digits.

Do I have to dial 10 digits for 678?

Yes — dial the area code plus the seven-digit number.

How do I call a 678 number from another country?

Dial your exit code (or +), then 1, then 678, then the number: +1 678 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 678 number does not pinpoint a street or ZIP code.

Missed a call from +1 678?

In the 30 days to September 24, 2026, 766 unwanted calls showing a 678 number were reported to the US Federal Trade Commission, 53% of them recorded messages or robocalls. That puts 678 at #87 of 670 area codes reported.

Other361
Calls pretending to be government, businesses, or family and friends100
Dropped call or no message94
Reducing your debt (credit cards, mortgage, student loans)70
Before you call back
  • If you do not know anyone in Georgia, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 678 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 678 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 678:

Paetec Itel, LLC 159Bellsouth Telecomm Inc Dba Southern Bell Tel & Tel 123Level 3 Communications, LLC 94Metropcs, Inc. 64Mcimetro Access Transmission Services LLC 56Powertel Atlanta Licenses, Inc. 55

About 10.5% of the 800 prefixes in use belong to mobile carriers: a 678 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 678 — cities & rate centres