The U.S. Federal Communications Commission (FCC) is set to accelerate the expansion of next-generation wireless networks by proposing the auction of 160 MHz of Upper C-Band spectrum (3.98–4.14 GHz) in 2027, creating a 440 MHz contiguous mid-band “super-band” (3.70–4.14 GHz) for advanced 5G and future 6G services.
FCC will vote on the proposal during its July 22 Commission meeting. The plan exceeds the congressional requirement to auction at least 100 MHz of Upper C-Band spectrum by July 2027, significantly increasing the amount of prime mid-band spectrum available for wireless operators.
The auction will offer 3,248 new flexible-use spectrum licenses across the contiguous United States, strengthening network capacity, improving wireless speeds, increasing competition, and expanding mobile broadband coverage.
According to the FCC, the expanded spectrum could generate at least $264 billion in GDP, create 1.5 million new jobs, and deliver $388 billion in consumer surplus by enabling broader deployment of high-capacity wireless services.
The proposal has been developed in close coordination with the Federal Aviation Administration (FAA) and other federal agencies to ensure safe coexistence between wireless services and aviation systems operating in the adjacent 4.2–4.4 GHz radio altimeter band. Safety measures include transmission power limits, buffer spectrum, tower height restrictions, and mandatory upgrades to aircraft radio altimeters supported through rebate programs.
The framework also establishes a transition process for incumbent satellite operators while maximizing the amount of spectrum repurposed for commercial wireless use. Winning bidders will fund satellite transition costs, incentive payments, and aviation equipment rebates, with the FCC expecting total costs to remain well below anticipated auction proceeds, which are projected to generate many billions of dollars for the U.S. Treasury.
Under the proposed timeline, wireless providers would begin deploying services in the Upper C-Band by December 2030 in the top 75 U.S. markets, with the remaining markets scheduled to launch from July 2031. The FCC believes most Americans will gain access to the new spectrum before the end of 2030, earlier than previously anticipated.
The initiative builds on the successful 2020 Lower C-Band auction, positioning the United States to expand its mid-band spectrum resources and strengthen global leadership in next-generation wireless connectivity.
BABURAJAN KIZHAKEDATH
