Alabama currently utilizes 6 area codes. When first established by AT&T and the Bell System in 1947, 205 covered the entire state of Alabama. The most recently added was 659 in 2019 as an overlay to 205. Today, 205 is the most populated with an estimated 1.5 million of the state's 4.8 million residents.
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659 is an overlay for area code 205.
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938 is an overlay for area code 256.