What time zone is area code 678 in?

Area code 678 uses Eastern Time.

What area codes overlay 678?

404, 470, 770 and 943 serve the same area as 678. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.

Is a call from area code 678 a scam?

The area code alone doesn’t tell you. Most calls from 678 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 678 number, let it go to voicemail.

When did area code 678 start?

678 went into service in 1998. It was created from area code 470.

Can a 678 number be outside Georgia?

Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 678 caller can be anywhere.

Area code 678

Where is area code 678?

Alpharetta, Marietta and Atlanta, Georgia

Local time: … (Eastern Time)

State	Georgia
Country	United States
Main cities	Alpharetta, Marietta and Atlanta
Time zone	Eastern Time
Overlay area codes	404, 470, 770 and 943
In service since	1998 (created from 470)
Assigned prefixes	785
Dialing format	(678) XXX-XXXX · +1 678 XXX XXXX from abroad

Look up a 678 number

Cities and towns in area code 678

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 678.

Phone companies in area code 678

The carriers that hold the most 678 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

Prefixes	Carrier
159	Paetec Itel
122	Southern Bell Tel & Tel (AT&T)
94	Level 3 Communications
84	Mcimetro Access Transmission Services
63	Powertel Atlanta Licenses (T-Mobile)
56	Metropcs (T-Mobile)
48	New Cingular Wireless PCS (AT&T)
36	Verizon Wireless

All 785 prefixes in area code 678

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Area codes that overlay 678

Questions

Where is area code 678?: Area code 678 is in Georgia. It serves Alpharetta, Marietta, Atlanta, McDonough and Gainesville and 53 other cities and towns.
What time zone is area code 678 in?: Area code 678 uses Eastern Time.
What area codes overlay 678?: 404, 470, 770 and 943 serve the same area as 678. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
Is a call from area code 678 a scam?: The area code alone doesn’t tell you. Most calls from 678 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 678 number, let it go to voicemail.
When did area code 678 start?: 678 went into service in 1998. It was created from area code 470.
Can a 678 number be outside Georgia?: Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 678 caller can be anywhere.

Other area codes in Georgia

Area code	Main cities
229	Albany, Valdosta and Thomasville
478	Macon, Warner Robins and Dublin
706	Augusta, Columbus and Athens
762	Columbus, Augusta and Rome
912	Savannah, Brunswick and Hinesville