Interesting that FBI announced December 8th that they awarded FirstNet and AT&T five-year contract worth $92 million.

https://urgentcomm.com/2020/12/08/fbi-selects-firstnet-for-five-year-contract-worth-92-million-att-says/

“The FBI has decided to move all of their service to FirstNet, built by AT&T, and we’re delighted about that,” Schwartz said during an interview with IWCE’s Urgent Communications. “While we do have some of their service today on FirstNet, this [new contract] would be moving the remainder of their enterprise over from Verizon service to AT&T’s FirstNet.