On November 20, 2025, the FCC voted unanimously to begin the rulemaking process for auctioning at least 100 megahertz of upper C-band spectrum from 3.98 to 4.08 GHz. The proposal sets the framework for clearing existing users, addressing aviation concerns, and preparing the band for commercial 5G and future 6G services. Congress has directed the FCC to complete this auction by 2027, making today’s action the first formal step in that timeline.
“The FCC’s unanimous vote to advance an auction of upper C-band spectrum marks a meaningful step toward expanding America’s next generation wireless capacity. With midband spectrum remaining essential for 5G growth and future 6G innovation, today’s action helps put the United States back on a forward path.”
— Viet Nguyen, President, 5G Americas
