Locations for Area Code - 337

Area code 337 serves southwestern Louisiana, including Lafayette, Lake Charles, and Opelousas. Introduced in 1999 from a split with area code 318, it encompasses a region rich in Cajun and Creole culture, French heritage, and vibrant cuisine and music traditions. Lafayette, a hub for oil and gas, also acts as a cultural capital of Acadiana. Ten-digit dialing is required. Area code 337 is deeply tied to Louisiana’s identity, often seen in local branding and community pride, representing the spirited blend of history, language, and hospitality that defines the region.