770 Area Code — Atlanta, GA
Area code 770 serves Atlanta and 4 other cities in Georgia. Local time follows America/New_York. It overlays with 404, 470, 678, so 10-digit dialling is required.
- State
- Georgia
- Primary city
- Atlanta
- Timezone
- America/New_York
- In service since
- 1995
- Type
- Geographic
Cities Served by 770
The 770 area code covers 5 cities and communities in Georgia.
- Marietta
- Roswell
- Lawrenceville
- Alpharetta
- Smyrna
About Area Code 770
Area code 770 is a North American Numbering Plan (NANP) area code that has been in service since 1995. It is administered by NANPA on behalf of the FCC and serves the Georgia region anchored on Atlanta.
770 now shares its territory with overlay codes (404, 470, 678). 10-digit dialling is required for local calls within this region because the same 7-digit number can be assigned under either code.
Mobile numbers in 770 are portable: a person who moved away from Atlanta may still carry a 770 mobile number on their device. If you receive an unexpected call from a 770 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in Georgia, you may also interact with neighbouring or overlay codes (404, 470, 678). See the related codes section below to explore the rest of Georgia.
Other Georgia Area Codes
Continue exploring the Georgia numbering plan.
770 Area Code FAQ
Where is area code 770?
Area code 770 is located in Georgia, primarily serving Atlanta and surrounding cities including Roswell, Lawrenceville, Alpharetta. The region operates on ET (America/New_York) time.
What state is 770 area code?
770 is a Georgia area code. It was put into service in 1995 and shares its geographic footprint with overlay codes 404, 470, 678.
Is 770 a scam area code?
770 is a legitimate North American area code allocated by NANPA to Georgia. Like any geographic area code, scammers sometimes spoof 770 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 770 use?
Area code 770 operates on ET (America/New_York). Numbers in this area code follow standard Georgia time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 770 phone number?
Yes. Use the reverse lookup widget above to enter a full 770 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 770 and 404?
770 and 404 cover the same Georgia geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.