Area Code 678

About Area Code 678

Area code 678 is a geographic telephone area code assigned to Atlanta, Georgia. It operates in the Eastern time zone and was first introduced in 1998. Overlay for 404/770. Atlanta metro.

Within Georgia, area code 678 shares numbering capacity with 8 other area codes. The state's 11,029,227-person population (2023 Census Bureau estimate) is served by a combined 9 active codes, with 678 primarily responsible for the Atlanta region. Georgia's state capital is Atlanta, and its largest city is Atlanta.

When you receive a call from a 678 number on your Caller ID, the call originated from a phone number assigned to the 678 area code — but be aware that Local Number Portability (in effect since 2003) means the caller could be physically located anywhere in the US or Canada. Area code 678 only confirms where the number was originally assigned.

Where is the 678 area code located?

Area code 678 is assigned to Atlanta, Georgia, in the Eastern time zone. The state of Georgia uses 9 active area codes, and 678 is one of them. Calls placed from the 678 area code originate from numbers assigned by NANPA — the North American Numbering Plan Administrator — and the 678 prefix appears on Caller ID for both landline and wireless calls placed from this region.

The Eastern time zone observes Daylight Saving Time, shifting from UTC-5 to UTC-4 in summer. The local time shown above is always current, so you can quickly check whether it's a reasonable hour to call back.

What cities and counties use the 678 area code?

The 678 area code serves 11 notable cities, listed below in order of population. The largest city in the 678 territory is Atlanta (506,811 residents in Fulton County).

• Atlanta, GA — 506,811 residents (28.5% of 678 numbers)
• Columbus, GA — 206,260 residents (11.6% of 678 numbers)
• Augusta, GA — 202,081 residents (11.4% of 678 numbers)
• Macon, GA — 157,346 residents (8.8% of 678 numbers)
• Savannah, GA — 147,780 residents (8.3% of 678 numbers)
• Athens, GA — 127,315 residents (7.2% of 678 numbers)
• Sandy Springs, GA — 108,080 residents (6.1% of 678 numbers)
• Roswell, GA — 92,763 residents (5.2% of 678 numbers)
• Johns Creek, GA — 82,453 residents (4.6% of 678 numbers)
• Albany, GA — 68,089 residents (3.8% of 678 numbers)

Phone number format in area code 678

All phone numbers within area code 678 follow the standard North American 10-digit format:(678) NXX-XXXX. The NXX is the central office prefix (also called an "exchange") and XXXX is the subscriber line number. For long-distance calls within the NANP, dial 1 + 678 + NXX + XXXX. From outside North America, dial your country's international access code, then 1 (the NANP country code), then the 10-digit number.

If you need to verify whether a specific 678 number is wireless, landline, or VoIP, you can use our reverse phone lookup tool. Be aware that number portability means the area code no longer guarantees the caller's physical location — only where the number was first assigned.

History of area code 678

Overlay for 404/770. Atlanta metro.

The original 86 area codes were assigned by AT&T and Bell Labs in 1947 as part of the North American Numbering Plan. At the time, rotary-dial phones meant codes with lower digits (like 212 for NYC, 213 for LA, 312 for Chicago) were given to the largest cities because they took less time to dial. Today's area code assignments still reflect those early choices, even though touch-tone and cell phones made the original reason obsolete.

Is the 678 area code safe to answer?

Area code 678 itself is a normal geographic code with no elevated spam risk. That said, scammers can spoof any area code — including 678 — so if you don't recognize the full number, let it go to voicemail and verify the caller's identity before calling back.