Lumen Technologies, Inc. is a facilities-based technology and communications company. The Company provides a range of integrated products and services to its domestic and global business customers and its domestic mass markets customers. It operates through two segments: Business segment and Mass Markets segment. Its Business segment provides its products and services under four sales channels to meet the needs of its enterprise and commercial customers. Its products and services in this segment include Dark Fiber, Edge Cloud Services, Internet Protocol (IP), Managed Security Services, Software-Defined Wide Area Networks (SD WAN), Secure Access Service Edge (SASE), Optical Services, Ethernet, VPN Data Networks, Voice Services, IT Solutions and Other Legacy Services. Its Mass Markets segment provides products and services to residential and small business customers. Its products and services in this segment include Fiber Broadband, Other Broadband and Voice and Other.