In the Dallas/Fort Worth Metroplex,
FMC Carswell was still active as of a few months ago (haven't been to that side of town recently). I need to re-check
Baylor Medical Center to see if that system still shows signs of life (Baylor Hospitals are primarily on their NexEdge system) - I'm in that general area twice a week for work, so I'll try to remember to check it.
Since RRDB is all driven by contributions, I know they would appreciate checking to see if there are systems off the air (and with SDR's and a laptop, there's good free software that can look both at Motorola and LTR systems to check them) and reporting those that are gone so they can be depreciated. (I know I've contributed my share).