Lumen Technologies is a digital networking services company that operates one of the world's most extensive fiber optic networks, serving enterprise, wholesale, and mass market customers globally through integrated products and services. The company generates revenue through its Business segment, which provides data connectivity, cloud services, managed security, and legacy voice services to large enterprises, mid-market businesses, public sector organizations, and wholesale partners, and historically through its Mass Markets segment offering broadband and voice services to residential and small business customers. Lumen competes on the strength of its terrestrial fiber infrastructure, network reliability, transmission speed, and comprehensive service portfolio, competing against global telecommunications providers, hyperscalers, cable companies, and wireless providers in enterprise connectivity and broadband markets.