AT&T Inc. agreed to buy the consumer fiber operations of Lumen Technologies Inc. for $5.75 billion, expanding its fast broadband service in major cities like Denver and Las Vegas. AT&T will pay cash for the unit of Lumen,

US telco giant AT&T has reached an agreement to acquire substantially all of Lumen’s Mass Markets fibre business for $5.75 billion (€5bn), subject to pu

The Dallas-based telecom giant AT&T is making a play for a fiber network that will help it expand is reach by millions.