Search LADD: N145SZ
N145SZ is on the LADD list. So it is 'blocked'

Any site that uses FAA data is required to block this aircraft, ie. FlightRadar24, FlightAware. You can still track it on TheAirTraffic.com though.
Seen on LADD before we began logging dates.Last Seen on LADD: 2025-05-13
N145SZ is not on LADD Source block list as of last check on 2023-01-09
Aircraft Info: N145SZ
ICAO: a0b6eb
ICAO Type: EC45
Manufacturer: EUROCOPTER DEUTSCHLAND GMBH
Model: MBB-BK 117 C-2
Year: 2013
Owner: U S BANK NA
Military: False