T-Mobile Swaps Spectrum, Fiber Paused

T-Mobile Landscape Update · Aug 17, 2026 · 7m

T-Mobile made a $2.9 billion bet this week, swapping out its entire 800 MHz holding for more 600 MHz spectrum in a deal with Grain Management. The move shores up T-Mobile’s core coverage layer—boosting reach in 212 counties and freeing up mid-band for more network capacity. While 800 MHz is prized for its long range, T-Mobile is sticking to what scales for its strategy: a streamlined, nationwide Band 71 that powers its 5G rollout and keeps complexity down. Grain, meanwhile, gets a rare national low-band asset, aiming to sell into utilities and private networks rather than go head-to-head in…