Georgia is served by ten area codes. The state's telephone numbering plan began in 1947 with a single area code, 404. Over the years, the state has expanded its area codes due to population growth and the need for more phone numbers. In 1954, area code 912 was assigned to southern and central Georgia. The state operated with two area codes until 1992 when area code 706 was created for areas outside of metro Atlanta. Area code 770 was assigned to Atlanta's suburbs in 1995, and 678 was given to both the city and its suburbs in 1998, becoming the first overlay area code in the state. The
Georgia Public Service Commission handles the assignment of new area codes for the state. The newest area code, 943, was introduced in March 2022 for the Atlanta area.
Georgia has embraced mobile communication with a marked increase in adults who rely exclusively on mobile. Data from 2023 shows that 78.3% of adults in Georgia rely solely on mobile phones, up from 63.7% in 2019—a gain of nearly 15 percentage points in four years. Georgia residents who primarily use a wireless phone make up 12.0%, while 4.4% are dual users. Those who mainly rely on landlines and those who only use landlines have declined to 2.6% and 1.6% respectively. The proportion of adults without phones stands at 1.1%. Georgia's segment of those who use both services has dropped sharply since 2019, reflecting a move toward exclusive mobile use across the state.