FCC[1] Auction 115 notice: bidding 'is tentatively scheduled to commence on April 27, 2027' (Federal Register title: 'Scheduled for April 27, 2027'); tentative until final procedures issue.
The FCC's Auction 115 puts 3,248 flexible-use licenses covering 160 MHz of Upper C-band spectrum (3.98-4.14 GHz) up for bid across the contiguous US, with bidding tentatively set to begin on 27 April 2027 ahead of a 4 July 2027 statutory deadline.