Area code 810 serves eastern Michigan, outside the Detroit metro area, including cities like Flint, Port Huron, and Lapeer. Introduced in 1993 from a split with 313, it covers a mix of post-industrial cities, rural farmland, and Great Lakes shoreline. Flint, a historically significant auto manufacturing center, has become a focal point for urban revitalization and environmental activism. Seven-digit dialing is still allowed in many areas. Area code 810 is strongly connected to blue-collar resilience and regional pride in Michigan’s working-class communities.