🇺🇸 770 area code
Area code 770 covers Alpharetta, Norcross, Marietta and Atlanta and the surrounding area in Georgia. It shares that territory with 470, 678 and 943, so the same neighbourhood can have numbers in any of them. Enter a 770 number below for a free check before you call back.
- Location: Alpharetta, Georgia
- Time zone: Eastern (UTC−5)
- In service since August 1, 1995
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Validity, carrier, line type, and region on the first pass.
Area code 770 at a glance
Cities in area code 770
- Alpharetta
- Norcross
- Marietta
- Atlanta
- Conyers
- Roswell
- Lawrenceville
- Duluth
- Tucker
- Cartersville
Is a 770 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 770 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 770 number to people in Georgia because a local-looking call is more likely to be answered. If a 770 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 770
770 entered service on August 1, 1995, when it was split from 404.
It is part of the 470/678/770/943 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
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FAQ
Area code 770 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 770?
Area code 770 is in Georgia, United States. It covers Alpharetta, Norcross, Marietta, Atlanta, Conyers and Roswell.
What time zone is area code 770?
770 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 770?
470, 678 and 943 serve the same area as 770. Numbers in all of them are local to one another.
When did area code 770 start?
770 entered service on August 1, 1995, created from 404.
How do I find out who called me from 770?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 770?
If you live in or near Georgia, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 770 callers who will not leave a message are best looked up before you call back.
Got a call from 770?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.