What is Area Code 770 – Area code 770 is a telephone area code serving the northern and central parts of Georgia, primarily the Atlanta metropolitan area and its suburbs. It overlays with area code 404 and 678.
Coverage Area
Area code 770 covers cities and counties around Atlanta, including:
- Marietta
- Roswell
- Alpharetta
- Smyrna
- Lawrenceville
- And many other suburbs
It does not cover downtown Atlanta itself, which primarily uses 404.
History
The area code launched in 1995 as a split from the original 404 code due to rapid population growth in the Atlanta suburbs. It later received an overlay with 678 in 2000 to meet ongoing demand.
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How Area Codes Work
When dialing within the 770 region, you must use the full 10-digit number (area code + 7 digits). For calls from outside the region, include the 1 + area code.
Current Status
770 remains active with no immediate plans for changes. The overlay system (770/678/404) allows continued growth without forcing number changes for existing customers.
FAQs : What is Area Code 770
What cities use area code 770?
It primarily serves Atlanta suburbs such as Marietta, Roswell, and Alpharetta.
Is 770 only for landlines?
No. It includes both landlines and mobile phones.
Do I need to dial 770 for local calls?
Yes. Ten-digit dialing is required throughout the region.
When was area code 770 introduced?
It was introduced in 1995.
What other area codes serve Atlanta?
404, 470, 678, and 770 all serve the greater Atlanta area.