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Aircraft registrations https://www.skytamer.com/5.4.htm

UK aircraft registrations https://www.caa.co.uk/aircraft-registration-commercial/

Milair callsign to base listing http://monitoringtimes.com/MilitaryCallsignList-APR09.pdf

usn squadrons list: www.seaforces.org/usnair/current-units.htm

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