AT&T and T-Mobile committed to spend a combined $1.8 billion in an auction for the high-frequency spectrum needed to deliver some of the fastest 5G speeds, per Ars Technica.
Why it matters: Spectrum is the foundation of any cellular network and delivering 5G requires higher frequency bandwidth than many carriers have in their possession.
- US Cellular, Verizon and upstart Starry also agreed to plunk down significant cash at the auction.
The bottom line: Verizon already has a significant amount of high-bandwidth spectrum, while Sprint plans to tap its nationwide mid-band spectrum as the center of its 5G strategy.
Go deeper: The dangers of over-hyping 5G
