A senior US official has put a number on Washington's next spectrum sell-off: more than $100 billion. The figure, reported by Reuters, signals how much cash the US government expects future auctions of wireless airwaves to pour into federal coffers as carriers race to feed their 5G and, eventually, 6G networks.

The estimate matters because spectrum is the raw material of every mobile network. Without new mid-band and high-band licenses, operators cannot add capacity where subscribers are densest. US carriers have spent years pressing regulators to release more frequencies, and the $100 billion forecast suggests Washington now sees those airwaves as a serious revenue line, not just an engineering chore.

Who stands to pay, and for what?

The likely bidders are the familiar trio of national carriers — Verizon, AT&T and T-Mobile — plus cable operators and satellite players who have increasingly bought spectrum to defend or expand their positions. Past US auctions give a sense of scale. The C-band sale that concluded in early 2021 raised roughly $81 billion, a record at the time, as Verizon and AT-Mobile fought for mid-band frequencies suited to 5G coverage and speed in equal measure.

An official forecast above $100 billion implies the upcoming sales could exceed even that mark. That would require a substantial pool of prime frequencies, likely in the mid-band range between roughly 1 GHz and 6 GHz, where signals travel far and carry plenty of data.

What is the regulatory backdrop?

US spectrum auctions need congressional authority, and that authority lapsed in 2022, leaving the Federal Communications Commission unable to sell new licenses. Lawmakers have debated restoring it, alongside plans to free up frequencies held by federal agencies such as the Department of Defense. The official's forecast indicates those discussions are far enough along for the administration to attach a dollar figure to the outcome.

The number also lands amid a broader industrial-policy push in Washington, where policymakers frame spectrum policy as part of competing with China on next-generation networks. More auction proceeds would give legislators a fiscal argument for moving faster.

Why the figure may not be a floor

Auction forecasts are notoriously hard to pin down. Bidding totals depend on how much spectrum is offered, which bands, and in what condition — licenses that require clearing incumbent users typically sell at a discount. Carriers' balance sheets also set a ceiling. After years of heavy 5G capital spending and the C-band outlay, some operators have argued they need room before the next major buy.

Still, the $100 billion-plus estimate from a US official is the clearest signal yet of the scale Washington has in mind. If Congress restores auction authority and the sales proceed on that trajectory, the next spectrum cycle would rank among the largest in US telecom history.