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AREA CODE · GEORGIA

Area code 678

Area code 678 covers Atlanta Northeast, Georgia. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Georgia Major City: Atlanta Northeast Eastern Time (ET) Overlay: 470/678/770/943
01 / WHERE IT IS

Where is area code 678?

Area code 678 is assigned to Atlanta Northeast and the surrounding region in Georgia. Calls to numbers that start with 678 are routed to this area.

Area code 678 shares its territory with 470, 770, 943. Because it is an overlay, local calls require dialing all 10 digits.

Counties covered

Gwinnett CountyCobb CountyFulton CountyClayton CountyHall CountyCoweta CountyBartow CountyCarroll CountyBarrow County

Line types

  • Mobile 18.9%
  • Landline 81.1%
02 / MAP

Area code 678 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in Atlanta Northeast

This area code is in the Eastern Time (ET) time zone.

Local timeAtlanta Northeast, GA--:--:--

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America/New_YorkLive
04 / HOW TO DIAL

How to call Atlanta Northeast

WITHIN THE US678 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 678 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 678 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 678 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 678 555 0123
🇦🇺Australia0011 1 678 555 0123
🇯🇵Japan010 1 678 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 678

Share of the number blocks by carrier and line type.

Landline

Windstream Communications
26%
AT&T
23%
Lumen Technologies
19%
Verizon Business
13%
Metro by T-Mobile
10%
Others
8%

Mobile

T-Mobile USA
37%
AT&T Mobility
32%
Verizon Wireless
24%
MERRYVILLE INVESTMENTS, LTD / BEST PAGE
3%
Sinch
2%
Others
1%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 678

783 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(678) 200 Mobile Gainesville T-Mobile USAPOWERTEL ATLANTA LICENSES, INC.
(678) 201 Landline Atlanta South Metro by T-MobileMETROPCS, INC.
(678) 202 Landline Atlanta Northwest Verizon BusinessMCIMETRO ACCESS TRANSMISSION SERVICES LLC
(678) 203 Landline Clermont InfobipPEERLESS NETWORK OF GEORGIA, LLC - GA
(678) 205 Landline Atlanta Northeast Windstream CommunicationsPAETEC ITEL, LLC
(678) 206 Landline Atlanta Northeast Windstream CommunicationsPAETEC ITEL, LLC
(678) 207 Landline Gainesville Windstream CommunicationsPAETEC ITEL, LLC
(678) 208 Landline Cumming Windstream CommunicationsPAETEC ITEL, LLC
(678) 209 Landline Atlanta Northeast Windstream CommunicationsPAETEC ITEL, LLC
(678) 210 Landline Conyers Windstream CommunicationsPAETEC ITEL, LLC

Showing 10 of 783 prefixes

07 / FAQ

Frequently asked questions about area code 678

Where is area code 678 used?
Area code 678 serves Atlanta Northeast and the surrounding area in Georgia, including Gwinnett County, Cobb County, Fulton County, Clayton County, Hall County.
What city is area code 678 from?
The main city of area code 678 is Atlanta Northeast, GA.
What time zone is area code 678 in?
Area code 678 is in the Eastern Time (ET) time zone (America/New_York).
Is 678 an overlay area code?
Yes. It shares its territory with 470, 770, 943. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 678 from the United States?
Dial the 10 digits: 678 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 678 number from another country?
Dial your country's exit code (or +), then 1, then 678 and the seven-digit number. From a mobile you can use +1 678 XXX XXXX.
Which carriers use area code 678?
Most landline blocks belong to Windstream Communications and most mobile blocks to T-Mobile USA. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 678 for landlines, mobiles or both?
Both. About 81.1% of the number blocks are landline, 18.9% mobile.
How do I save a 678 number in WhatsApp or my phone?
Save it in international format: +1 678 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 678?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

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