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AREA CODE · GEORGIA

Area code 770

Area code 770 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 770?

Area code 770 is assigned to Atlanta Northeast and the surrounding region in Georgia. Calls to numbers that start with 770 are routed to this area.

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

Counties covered

Gwinnett CountyCobb CountyClayton CountyHall CountyBartow CountyCarroll County

Line types

  • Mobile 18.85%
  • Landline 81.15%
02 / MAP

Area code 770 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 US770 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+1 770 XXX XXXX

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

WHATSAPP / IMESSAGE+1 770 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+1 770 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 770 555 0123
🇦🇺Australia0011 1 770 555 0123
🇯🇵Japan010 1 770 555 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 770

Share of the number blocks by carrier and line type.

Landline

AT&T
74%
Windstream Communications
7%
Verizon Business
6%
Comcast
6%
Sinch
3%
Others
5%

Mobile

AT&T Mobility
36%
Verizon Wireless
32%
USA Mobility
13%
T-Mobile USA
10%
MERRYVILLE INVESTMENTS, LTD / BEST PAGE
4%
Others
5%

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 770

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

PrefixTypeCityCarrier
(770) 200 Landline Atlanta Northwest Lumen TechnologiesLEVEL 3 TELECOM OF GEORGIA, LP - GA
(770) 201 Mobile Atlanta Northeast USA MobilityUSA MOBILITY WIRELESS, INC.
(770) 202 Landline Atlanta South SinchONVOY, LLC - GA
(770) 203 Landline Cumming BandwidthBANDWIDTH.COM CLEC, LLC - GA
(770) 205 Landline Cumming AT&TBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
(770) 206 Landline Atlanta Northeast AT&TBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
(770) 207 Landline Monroe Windstream CommunicationsWINDSTREAM GEORGIA COMMUNICATIONS CORP.
(770) 208 Mobile Atlanta Northeast USA MobilityUSA MOBILITY WIRELESS, INC.
(770) 209 Landline Atlanta Northeast AT&TBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL
(770) 210 Landline Atlanta South AT&TBELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL

Showing 10 of 780 prefixes

07 / FAQ

Frequently asked questions about area code 770

Where is area code 770 used?
Area code 770 serves Atlanta Northeast and the surrounding area in Georgia, including Gwinnett County, Cobb County, Clayton County, Hall County, Bartow County.
What city is area code 770 from?
The main city of area code 770 is Atlanta Northeast, GA.
What time zone is area code 770 in?
Area code 770 is in the Eastern Time (ET) time zone (America/New_York).
Is 770 an overlay area code?
Yes. It shares its territory with 470, 678, 943. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 770 from the United States?
Dial the 10 digits: 770 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 770 number from another country?
Dial your country's exit code (or +), then 1, then 770 and the seven-digit number. From a mobile you can use +1 770 XXX XXXX.
Which carriers use area code 770?
Most landline blocks belong to AT&T and most mobile blocks to AT&T Mobility. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 770 for landlines, mobiles or both?
Both. About 81.15% of the number blocks are landline, 18.85% mobile.
How do I save a 770 number in WhatsApp or my phone?
Save it in international format: +1 770 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 770?
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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