There are two separate security hubs, one North and one South. The South one is currently empty; there is very minimal staffing throughout the facility given that it is still a work in progress and wasn't meant to be occupied yet. There are several small bots stationed throughout, as well as cameras covering nearly every square inch that are monitored by an AI. There are no cells that are visibly occupied by prisoners.

Through 616 Tony's snooping, they'll be able to pick out that the cells Jason and Roy are in are on the Northern side of the facility in opposite corners from each other, whereas there's also an occupied room on the Southern side--occupant unknown.