Area code 470 is an overlay for metro Atlanta, covering the same region as 404, 678, and 770. Introduced in 2001, it was added to accommodate the explosive growth of Atlanta and surrounding suburbs. The 470 code is used across the entire metropolitan area, including cities like Atlanta, Marietta, Sandy Springs, and Lawrenceville. It is most frequently assigned to newer mobile phones and VoIP services. With ten-digit dialing mandatory, 470 has become a practical part of Atlanta’s modern telecommunications infrastructure. Though newer than its counterparts, it reflects the region’s continued expansion and high-tech development. 470 is now widely accepted as part of the Atlanta area code family.