AT&T agrees to buy Lumen’s consumer fiber business for $5.75 billion

AT&T has clinched a deal to acquire Lumen Technologies’ consumer fiber operations for $5.75 billion in cash, the companiessaid on Wednesday, as the wireless provider adds further scale to its national fiber footprint. Lumen’s shares were up 13% in after-market trading on the sale of the business, which provides high-speed internet services to residential customers.