RCL gear is also on 900mhz ISM. Generally, the only RCL you'll see in the FCC database are the ones on UHF. The 220Mhz gear is typically done on several pairs of nationwide AAR licensed frequencies and then coordinated/"licensed" by them. You'll see some oddballs licensed direct through the FCC, but that's more the exception than the standard.220 and UHF can be used in yards for RCL equipment, depending on the manufacture and may use repeaters so don't get confused if looking at FCC data in many locations.
BNSF and UP are part of the 'PTC 220, LLC' group along with NS and CSX. The PTC 220 LLC is handling all frequency coordination among member roads.Most railroads (especially the west coast ones) will go and lice sense stuff themselves. In the past AAR use to do blanket licensees, but if you take sample licensees for the voice channels, the RR's are doing it themselves these days.