Array completes spectrum sale to AT&T for $1B

Array Digital Infrastructure, the company formerly known as US Cellular, has closed its previously announced deal to sell a block of wireless airwaves to AT&T for $1 billion. The transaction, first disclosed in November 2024, covers spectrum licenses in the 700MHz and 3.45GHz bands.

The sale shifts those spectrum assets from Array to AT&T, which has been adding mid-band and low-band holdings to boost coverage and capacity in its wireless network. Array, in turn, converts part of its spectrum portfolio into cash as it continues to reshape the business following its rebrand.