Lumen Technologies, Inc. is a digital networking services company that connects people, data, and applications for enterprise and mass market customers. The company provides integrated products and services through a global fiber-optic and copper network infrastructure. It operates in the telecommunications industry, focusing on enabling digital transformation in a multi-cloud, AI-first marketplace.

Lumen Technologies, Inc. generates revenue by offering network, security, cloud, and voice solutions to its customers. The company monetizes its infrastructure through services such as dark fiber, edge cloud, IP connectivity, VoIP, managed security, SD-WAN, unified communications, and legacy voice and private line services. It serves both enterprise customers seeking scalable digital solutions and mass market residential and small business subscribers requiring broadband and voice services.

The company operates through the following segments: Business and Mass Markets.

• Business Segment: This segment serves enterprise and commercial customers across five sales channels including Large Enterprise, Mid-Market Enterprise, Public Sector, Wholesale, and International and Other. It provides products and services under four categories: Grow, Nurture, Harvest, and Other. The Grow category includes Dark Fiber and Conduit, Edge Cloud Services, IP, VoIP, Managed Security Services, SD-WAN, UC&C, and Optical Services. The Nurture category includes Ethernet and VPN Data Networks. The Harvest category includes Voice Services and Private Line. The Other category includes Equipment, Managed and Professional Service Solutions, and Other Legacy Services. The segment operates under the Lumen brand for enterprise and wholesale markets, including PCF network architecture, Lumen Digital products, Edge, Network-as-a-Service, and cybersecurity offerings.

• Mass Markets Segment: This segment provides products and services to domestic residential and small business customers. Revenue is derived from three categories: Fiber Broadband, Other Broadband, and Voice and Other. Fiber Broadband delivers high-speed services via fiber infrastructure, while Other Broadband provides lower-speed services using copper-based infrastructure. The Voice and Other category includes local and long-distance voice services, professional services, ancillary services, and federal and state broadband support programs. Prior to its divestiture on February 2, 2026, the segment offered fiber-based broadband under the Quantum Fiber brand. The segment also uses the CenturyLink brand for copper-based mass-marketed communications services.

Lumen Technologies, Inc. holds a strong position as one of the largest providers of communications services to domestic and global enterprise customers, with a network spanning over 340,000 route miles of fiber optic cable and approximately 163,000 fiber on-net buildings. The company competes with global communications providers, hyperscalers, cloud service providers, cable companies, wireless carriers, and systems integrators. Its competitive advantages include network reliability, comprehensive coverage, integrated service offerings, digital ordering capabilities, and a focus on security and performance for enterprise clients.

Lumen Technologies, Inc. serves enterprise customers ranging from small business offices to the world’s largest global enterprises, including carriers, government entities, research and education institutions, and multinational corporations. Its Mass Markets segment previously served residential and small business customers across 17 states with broadband-enabled units. The company maintains customer engagement through initiatives such as the Lumen Advisory Board, Lumen Customer Community, and annual customer experience events.