The 770 area code covers Atlanta, Gainesville and 36 more places in Georgia.
Area code 770 is in Georgia, on Eastern Time. In the 770 area, phone numbers are given out most in Fulton County, then Hall and Bartow counties. It has been in service since August 1, 1995. 470, 678 and 943 cover the same area, so two neighbours can have different area codes.
- Where
- 8 counties in Georgia, mostly Fulton County, Hall County and Bartow County
- Time zone
- Eastern Time
- In service since
- August 1, 1995
- Shares its area with
- 470 (since 2010), 678 (since 1998) and 943 (since 2022)
- Prefixes in use
- 780
- How to dial
- Local calls need all 10 digits: 770-555-0142.
Find out who called you from a 770 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (770) number is on today, use our free carrier lookup.
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Atlanta holds 75% of the phone prefixes in area code 770.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 780 prefixes in use shows where 770 numbers are actually given out.
- Atlanta584 prefixes, 75%
- Gainesville24 prefixes, 3%
- Conyers15 prefixes, 2%
- Cumming12 prefixes, 2%
- Adairsville12 prefixes, 2%
- Newnan11 prefixes, 1%
- Carrollton10 prefixes, 1%
- Cartersville10 prefixes, 1%
Also served: Griffin, Winder, Buford and Canton and 26 smaller places.
BellSouth (AT&T) holds 54% of the phone number prefixes in area code 770, more than all other carriers combined.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 780 prefixes in use in 770 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| BellSouth (AT&T)AT&T's landline company | 425 | 54% |
| AT&T MobilityMobile network | 53 | 7% |
| Teleport (AT&T)AT&T's business phone network | 36 | 5% |
| Comcast (Xfinity)Cable company's phone service | 35 | 4% |
| PAETEC (Windstream)Windstream's business phone network | 28 | 4% |
| SpokPaging network | 16 | 2% |
| 19 other carriers | 187 | 24% |
43% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
770 has covered the same ground since 1995.
1995
770 starts on August 1, 1995, split off from 404.
A 770 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 770 are 706, 478 and 256.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
Georgia has 9 other area codes.
These are the questions people ask most about area code 770.
Where is area code 770?
770 covers Atlanta, Gainesville, Conyers and Cumming and 34 more places in Georgia. In the 770 area, phone numbers are given out most in Fulton County, then Hall and Bartow counties.
What state is area code 770 in?
Georgia. 770 is a Georgia area code on Eastern Time.
What cities use area code 770?
The places holding the most 770 prefixes are Atlanta, Gainesville, Conyers, Cumming, Adairsville, Newnan, Carrollton and Cartersville, out of 38 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 770?
No single phone company owns 770. NANPA's records show BellSouth (AT&T) holds the most 770 prefixes, 425 of 780, followed by AT&T Mobility and Teleport (AT&T). Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 770 in?
770 is on Eastern Time.
When did area code 770 start?
770 went into service on August 1, 1995, when it was split off from 404.
Is 770 the same area as 470, 678 and 943?
Yes. 470 (since 2010), 678 (since 1998) and 943 (since 2022) cover the same ground as 770. Nobody's number changed when they were added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 770 number?
Local calls need all 10 digits: 770-555-0142.
Is 770 a toll-free number?
No. 770 is a regular area code for Atlanta and Gainesville in Georgia, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 770?
The closest are 706/762 (Augusta, Georgia), 478 (Macon, Georgia), 256/938 (Huntsville, Alabama) and 864/821 (Greenville, South Carolina), measured between the centres of each area.
Who called me from a 770 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 770 a scam?
770 is a real Georgia area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.