770
Covers Georgia
In service since 1995
City facts
Roswell area codes
Area codes for Georgia: history, overlays and how to dial.
770678404
Roswell uses area codes 770, 678 and 404. Because more than one area code serves the same area, local calls need all ten digits.
About these area codes
678
Covers Atlanta metropolitan area
Overlay with 470 and 943
404
Covers Atlanta, Georgia
How to call a number in Roswell
Inside the US
1 (770) 555-0123Dial 1, the area code, then the seven-digit number.Local call
(770) 555-0123Overlay area: always include the area code.From outside the US
+1 770 555 0123Use your country's exit code or +, then 1 for the US.Roswell is on Eastern Time (ET); check the time before calling from another zone.
Other cities that share these codes
Nearby area codes
| Area code | Used in | Distance |
|---|---|---|
| 470 | Sandy Springs | 8 mi |
| 943 | Sandy Springs | 8 mi |
Roswell quick facts
Roswell was established in 1854. It is named for Roswell King.
Established1854
CountyFulton CountyGeorgia
Area codes770, 678, 404Population92,577Census ACS estimateZIP codes230075, 30076Elevation1,050 ft320 m
Time zoneEastern TimeET
Dates, namesake and elevation from Wikipedia: Roswell, Georgia and Wikidata (checked 2026-11-08); population and ZIP codes from the U.S. Census Bureau.
Questions
What area code is Roswell?
Roswell uses area codes 770, 678 and 404. Because more than one area code serves the same area, local calls need all ten digits.
When did area code 770 start?
Area code 770 dates from 1995.
Do I need to dial the area code for local calls in Roswell?
Yes. 770, 678 and 404 share the same area as an overlay, so every local call needs the area code plus the seven-digit number (ten digits).
What time zone is area code 770 in?
Roswell is on Eastern Time (ET).
What other cities use area code 770?
Other cities in this network that share 770, 678 and 404 include Alpharetta, Sandy Springs, Johns Creek.
Sources: Area code 770, Area codes 678, 470, and 943, Area code 404 (Wikipedia) and Wikidata, checked 2026-11-08. Numbering plans change; the North American Numbering Plan Administrator is the official record.