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770 Area Code

Area code 770 serves Atlanta, South Fulton, Sandy Springs, Johns Creek, Mableton and nearby communities in Georgia. It has been in service since August 1, 1995, when it was split from 404.

StateGeorgia
Time zoneEastern
Local time now…
Prefixes in use780
Overlay with470, 678, 943
Projected to run out2039
AtlantaSouth FultonSandy SpringsJohns CreekMabletonAlpharettaMariettaStonecrestBrookhavenSmyrnaDunwoodyGainesvilleNewnanDouglasvilleMiltonPeachtree CityCantonWoodstockEast PointKennesawTuckerDuluthMcDonoughLawrencevilleChambleeRedanUnion CitySugar HillCarrolltonCartersvilleDecaturGriffinSuwaneeAcworthSnellvilleCandler-McAfeeWinderVilla RicaFayettevilleConyersHolly SpringsForest ParkBufordNorth DecaturNorth Druid HillsCovingtonLoganvilleMonroeDoravilleLithia SpringsRiverdaleLocust GroveClarkstonBelvedere ParkCollege ParkViningsFlowery BranchLovejoyCummingCedartownScottdaleFair OaksHamptonPanthersvilleAustellDruid HillsTyroneBremenGresham ParkHapevilleOakwoodTempleStone MountainBarnesvilleSenoiaFairfield PlantationMorrowJacksonHiramGraysonAtlantaSouth FultonSandy SpringsJohns Creek
Cities and towns served by area code 770

Who issues 770 numbers

Mobile 14%VoIP and cable 19%Landline 67%

Share of the 780 prefixes (the three digits after 770) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Southern Bell Tel & Tel425
AT&T Mobility53
Verizon Wireless45
Verizon Business (MCImetro)36
AT&T (Teleport)36
Comcast (Xfinity)35
Paetec Itel28
Onvoy (Sinch)27

Cities and towns in area code 770

CityPopulationOther area codes
Atlanta529,110404, 678, 470, 943
South Fulton112,820404, 678, 470, 943
Sandy Springs105,013404, 678, 470, 943
Johns Creek80,401470, 678, 943
Mableton78,820404, 678, 470, 943
Alpharetta66,921470, 678, 943
Marietta63,574404, 678, 470, 943
Stonecrest61,337678, 470, 943
Brookhaven59,643404, 678, 470, 943
Smyrna57,513404, 678, 470, 943
Dunwoody51,792404, 678, 470, 943
Gainesville49,221678, 470, 943
Newnan45,867678, 470, 943
Douglasville41,523470, 678, 943
Milton41,266470, 678, 943
Peachtree City40,880470, 678, 943
Canton40,778470, 943, 678
Woodstock39,895470, 943, 678
East Point38,225404, 678, 470, 943
Kennesaw37,970470, 678, 943
Tucker37,290404, 678, 470, 943
Duluth33,815470, 678, 943
McDonough33,395470, 943, 678
Lawrenceville32,822470, 678, 943
Chamblee32,334404, 678, 470, 943
Redan30,426678, 470, 943
Union City29,910404, 678, 470, 943
Sugar Hill29,280470, 678, 943
Carrollton27,925678, 470, 943
Cartersville25,349470, 678, 943
Decatur25,276404, 678, 470, 943
Griffin23,896470, 678, 943
Suwanee23,034470, 678, 943
Acworth22,925470, 678, 943
Snellville22,478678, 470, 943
Candler-McAfee21,316404, 678, 470, 943
Winder21,252470, 678, 943
Villa Rica21,022470, 678, 943
Fayetteville20,465470, 678, 943
Conyers20,377678, 470, 943

Showing the 40 largest of 80 places with 5,000+ residents.

Got a call from 770?

A 770 number was originally issued in Georgia, but that does not prove the caller is there. 19% of 770 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 780 prefixes in area code 770

Format: (770) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 770

Where is area code 770?
Area code 770 is in Georgia. It covers Atlanta, South Fulton, Sandy Springs, Johns Creek, Mableton, Alpharetta and 74 more cities and towns.
What time zone is area code 770?
Area code 770 is in the Eastern time zone.
Is 770 a toll-free number?
No. 770 is a geographic area code in Georgia. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 770 share its area with 470, 678 and 943?
470, 678, 770 and 943 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
Will area code 770 run out of numbers?
NANPA's latest forecast projects the 470/678/770/943 overlay to exhaust in the first quarter of 2039. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Georgia