What is 678 Area Code?

The 678 area code was introduced in 1998 to support the growing demand for phone numbers in Atlanta and nearby cities. It is an overlay of the 404, 470, and 943 codes, covering a large part of northern Georgia.

  • State: Georgia
  • Major Cities: Atlanta, Alpharetta, Marietta, Sandy Springs, Roswell
  • Time Zone: Eastern Time Zone (ET)
  • Established: 1998
  • Overlay Area Codes: 404, 470, 943
  • Region Population: Over 6 million residents
  • Primary Uses: Business, residential, and mobile phone services

Population & Demographics of 678 Area Code

The 678 area code region is home to more than 6.4 million people, making it one of the largest and fastest-growing areas in Georgia. Its population reflects a mix of long-term residents, professionals, students, and a diverse immigrant community.

The region’s workforce is dynamic and well-suited for industries like finance, healthcare, and technology. This diversity makes the 678 area code a strong choice for businesses looking to connect with a wide customer base.

678 Area Code Time Zone

The 678 area code operates under the Eastern Time Zone (ET), aligning with Atlanta’s standard business hours and providing consistency for companies operating nationwide.