Area code 302 covers the entire state of Delaware, making it one of the few area codes to serve an entire U.S. state. It was one of the original codes established in 1947. Delaware’s small size has allowed 302 to remain singular, and it includes major cities such as Wilmington, Dover, and Newark. The state is a hub for corporate registration, banking, and legal services. Ten-digit dialing is not required for local calls. Area code 302 is deeply connected to Delaware’s unique political and business influence, and it remains a source of state pride and a symbol of close-knit community identity.