What area code is 770?
Here's everything about it.
Instant lookup for the 770 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
770 at a glance
Summary
Cities & regions served by 770
Atlanta suburbs9 communities on record for 770.
Where 770 sits on the map
Overlay: 678Coverage area
About the 770 region
770 covers Atlanta suburbs in Georgia, including Marietta, Carrollton, Gainesville, Jonesboro and Lawrenceville. The code has been in service since 1995.
As the Atlanta suburbs region grew, 770 ran low on available numbers, so 678 was added as an overlay code over the same geographic area. Both codes are local to each other and 10-digit dialing applies throughout.
Split of 404; 1998: overlaid by 678 Covers metropolitan areas outside of Atlanta and fully encircles Atlanta's area code 404.
Who called me from 770?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 770 does not prove the caller is really in the 770 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 770 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 770 number below.
Frequently asked questions
FAQWhat area code is 770?+–
770 is a telephone area code serving Atlanta suburbs in Georgia, United States, in service since 1995.
Where is area code 770 located?+–
It covers Barrow County, Bartow County, Butts County and other counties, including Marietta, Carrollton, Gainesville, Jonesboro and Lawrenceville in Georgia.
What cities are in area code 770?+–
Major communities on record include Marietta, Carrollton, Gainesville, Jonesboro and Lawrenceville, among others. The code's territory spans the Atlanta suburbs region of Georgia.
What time zone is 770?+–
770 observes Eastern (ET), which is UTC−5 / −4 DST and follows daylight saving time.
When did area code 770 start?+–
770 entered service in 1995. Its history: split of 404; 1998: overlaid by 678 Covers metropolitan areas outside of Atlanta and fully encircles Atlanta's area code 404.
Why do calls to 770 require 10-digit dialing?+–
770 shares its territory with overlay code 678. Because both codes serve the same geographic area, the phone network needs all 10 digits to route a call, and calls between the codes are still local.
Is 770 a scam area code?+–
Scam and robocall traffic can use any North American code, 770 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 770 number, and report anything suspicious.
Can I get a 770 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 770 number regardless of where you physically live.