Lumen Technologies, Inc. LUMN

What this company does

Lumen Technologies operates a communications network. As of December 31, 2025, it had two segments: its Business segment, serving domestic and global customers, and its Mass Markets segment, serving domestic customers. It conducts its operations under the Lumen brand, used for the enterprise and wholesale markets and including its PCF network architecture and Lumen Digital products, and under the CenturyLink brand, its long-standing brand for mass-marketed copper-based communications services. As of December 31, 2025, it had approximately 163,000 fiber on-net buildings and over 340,000 route miles of fiber optic cable globally. As of December 31, 2025, it employed approximately 24,000 employees globally, including approximately 3,400 outside the U.S. Lumen Technologies has grown principally through acquisitions since being incorporated in Louisiana in 1968, including the acquisitions of Embarq Corporation in 2009, Qwest Communications International Inc. in 2011, and Level 3 Communications, Inc. in 2017.

Written from the business description in Lumen Technologies, Inc.'s annual report to the U.S. Securities and Exchange Commission, filed 20 February 2026. Every sentence was checked against that document before publication.