Search LADD: N539AK
N539AK 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
N539AK is not on LADD Source block list as of last check on 2023-01-09
Aircraft Info: N539AK
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ICAO: a6d1e6
Owner: ALASKA AIRLINES INC.
Military: False