Area code 206 serves the city of Seattle and nearby areas in King County, Washington. Introduced in 1947, it originally covered the entire state but has since been reduced to the core metro area due to population growth. Seattleās global tech and innovation presence, with companies like Amazon and Microsoft headquartered nearby, has made 206 a symbol of modern industry and progressive culture. The region is also known for its natural beauty and music scene. Ten-digit dialing is required due to overlay codes. The 206 area code holds cultural cachet and urban prestige in the Pacific Northwest.