The next big spectrum event in U.S. wireless is now on the calendar. The FCC voted on July 22 to make 160 MHz of the Upper C-band, from 3.98 to 4.14 GHz, available for terrestrial wireless service in the contiguous U.S., Light Reading reported. Bidding in that sale, Auction 115, is tentatively set to start on April 27, 2027, according to Space Law Journal.
What makes this auction different is what it sits next to. Added to the lower C-band that carriers bought and deployed earlier this decade, the new block forms a largely harmonized 440 MHz “super band” running from 3.7 to 4.14 GHz, as Davis Wright Tremaine summarized the order.
I think that contiguity is the real prize here, more than the raw megahertz. A continuous run of mid-band spectrum next to frequencies operators already use is the kind of asset networks can grow into for years. But the auction is only the starting gun. The schedule that follows, running to 2031, is where the value will actually be built.
How the clearing works
The band is used today by satellite operators, so the order pays them to move. The FCC set $6.3 billion in incentive payments, split among SES ($5.607 billion), Eutelsat ($504 million) and Telesat ($189 million), according to the DWT summary. On top of that, new licensees will reimburse relocation costs that the commission estimates at $4 billion to $5 billion.
The payments come with deadlines. Satellite operators have to clear the band in the top 75 markets, covering roughly 70 percent of the population, by December 30, 2030, and everywhere else by June 30, 2031, DWT notes. Payments shrink for each month an operator runs late on the first deadline, Space Law Journal explains. Operators’ initial transition plans were due November 5, 2026.
My take is that tying money to firm clearing dates is one of the most encouraging parts of this order. It gives everyone in the chain, from satellite operators to the crews who will eventually install new radios, a schedule they can plan around.
The FCC laid out the plan, and its push for a harmonized band, on X:
FCC Adopts Plan for C-Band Auction in July 2027
The FCC’s Interagency and Industry Coordination Clears the Way for a Harmonized 5G ‘Super Band’
Read more 🧵⬇️ https://t.co/m0XFOoTI5F
— FCC (@FCC) July 22, 2026
Room for aviation
The order also takes aviation into account from the start. Aircraft radio altimeters operate at 4.2 to 4.4 GHz, just above the new block. The FCC set a 20 MHz guard band from 4.14 to 4.16 GHz, kept satellite downlinks in the top 40 MHz of the band, and imposed emission limits and antenna height caps, according to DWT. The first clearing deadline lines up with the FAA’s first altimeter retrofit deadline at the end of 2030. The FCC also said it worked closely with the FAA in writing the rules.
Chairman Brendan Carr called the plan “a really good outcome for consumers,” Broadband Breakfast reported, and AT&T welcomed the decision.
The case for caution
There are real limits to keep in view. The biggest is time. Even if bidding begins on schedule in April 2027, the band will not be fully cleared until mid-2031, so much of the benefit sits years out. Aviation coexistence is engineered on paper, but it depends on altimeter retrofits across the fleet, with a second FAA deadline that runs to October 2034.
Not everyone got what they wanted, either. Commissioner Anna Gómez approved the item in part and dissented in part, arguing the FCC should have run a Tribal licensing window alongside the auction, Broadband Breakfast reported. ACA Connects, which represents smaller cable operators, said the order begins a lengthy transition and pressed for fair reimbursement of costs.
These are fair concerns, and the 2030 and 2031 deadlines are demanding. But they are concerns about execution, not about whether the spectrum is worth clearing.
What I’ll be watching
I’ll be watching three things: whether Auction 115 holds its April 2027 start, how the satellite operators’ transition plans lay out the work market by market, and how quickly the reimbursement process settles costs for the earth stations that have to change. If those pieces move on time, I’d argue the Upper C-band can move from auction to working network on a predictable schedule. The auction will be the headline. The work after it, on the ground and at the towers, is what will turn 160 MHz into service.
Roger Sartain is SVP and General Manager of Wireless & OSP at Telamon.
Related reading: AT&T, T-Mobile and Verizon Now Share One Satellite Venture. That’s How Dead Zones Actually Close. · Fiber and Fixed Wireless Are Finishing America’s Broadband Map Together · The FCC Says 99.7% of Americans Can Get Satellite Broadband.
