Apparatus

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sensors Mode-S transponder

AA990D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N782MF · operated by MAINE INSTRUMENT FLIGHT

Hex
AA990D
Octal
52514415
Decimal
11,180,301
Country
US
Tail
N782MF
Type
P28A
No current signal · last broadcast 7d ago
Flights observed
91
Distinct callsigns
1
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S AA990D.

Country allocation

The ICAO 24-bit address AA990D falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N782MF - 91 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-16 N782MF - Jun 16, 18:09 UTCJun 16, 18:25 UTC15m
2026-06-16 N782MF - Jun 16, 15:45 UTCJun 16, 16:30 UTC45m
2026-06-16 N782MF - Jun 16, 14:05 UTCJun 16, 14:45 UTC40m
2026-06-16 N782MF - Jun 16, 02:09 UTCJun 16, 03:15 UTC1h 5m
2026-06-13 N782MF - Jun 13, 17:45 UTCJun 13, 18:35 UTC50m
2026-06-13 N782MF - Jun 13, 15:35 UTCJun 13, 16:45 UTC1h 10m
2026-06-11 N782MF - Jun 11, 21:20 UTCJun 11, 22:05 UTC45m
2026-06-11 N782MF - Jun 11, 19:20 UTCJun 11, 19:35 UTC15m
2026-06-11 N782MF - Jun 11, 16:00 UTCJun 11, 16:35 UTC35m
2026-06-11 N782MF - Jun 11, 14:10 UTCJun 11, 14:55 UTC45m
2026-06-10 N782MF - Jun 10, 22:15 UTCJun 10, 23:20 UTC1h 5m
2026-06-10 N782MF - Jun 10, 20:20 UTCJun 10, 21:05 UTC45m
2026-06-10 N782MF - Jun 10, 16:45 UTCJun 10, 17:05 UTC20m
2026-06-09 N782MF - Jun 9, 16:45 UTCJun 9, 17:00 UTC15m
2026-06-09 N782MF - Jun 9, 14:40 UTCJun 9, 14:50 UTC10m
2026-06-09 N782MF - Jun 9, 13:35 UTCJun 9, 13:55 UTC20m
2026-06-06 N782MF - Jun 6, 01:50 UTCJun 6, 03:05 UTC1h 15m
2026-06-05 N782MF - Jun 5, 18:15 UTCJun 5, 18:55 UTC40m
2026-06-05 N782MF - Jun 5, 15:30 UTCJun 5, 16:05 UTC35m
2026-06-05 N782MF - Jun 5, 14:50 UTCJun 5, 15:00 UTC10m
2026-06-05 N782MF - Jun 5, 04:25 UTCJun 5, 04:45 UTC20m
2026-06-05 N782MF - Jun 5, 03:00 UTCJun 5, 03:20 UTC20m
2026-06-04 N782MF - Jun 4, 22:05 UTCJun 4, 22:55 UTC50m
2026-06-04 N782MF - Jun 4, 19:35 UTCJun 4, 20:45 UTC1h 10m
2026-06-03 N782MF - Jun 3, 16:25 UTCJun 3, 16:35 UTC10m
2026-06-03 N782MF - Jun 3, 15:25 UTCJun 3, 15:35 UTC10m
2026-06-03 N782MF - Jun 3, 13:55 UTCJun 3, 14:20 UTC25m
2026-06-03 N782MF - Jun 3, 02:15 UTCJun 3, 03:45 UTC1h 30m
2026-06-02 N782MF - Jun 2, 21:40 UTCJun 2, 22:30 UTC50m
2026-06-02 N782MF - Jun 2, 18:40 UTCJun 2, 20:00 UTC1h 20m
2026-06-02 N782MF - Jun 2, 13:40 UTCJun 2, 16:45 UTC3h 5m
2026-05-20 N782MF - May 20, 01:35 UTCMay 20, 03:55 UTC2h 20m
2026-05-11 N782MF - May 11, 18:25 UTCMay 11, 19:55 UTC1h 30m
2026-05-04 N782MF - May 4, 21:40 UTCMay 4, 22:15 UTC35m
2026-05-04 N782MF - May 4, 19:55 UTCMay 4, 20:40 UTC45m
2026-05-04 N782MF - May 4, 16:30 UTCMay 4, 18:00 UTC1h 30m
2026-05-03 N782MF - May 3, 19:05 UTCMay 3, 21:14 UTC2h 10m
2026-05-03 N782MF - May 3, 14:15 UTCMay 3, 17:50 UTC3h 35m
2026-05-03 N782MF - May 3, 01:50 UTCMay 3, 04:20 UTC2h 29m
2026-05-02 N782MF - May 2, 21:50 UTCMay 2, 23:30 UTC1h 40m
2026-05-02 N782MF - May 2, 17:35 UTCMay 2, 19:10 UTC1h 35m
2026-05-02 N782MF - May 2, 15:30 UTCMay 2, 15:40 UTC10m
2026-05-02 N782MF - May 2, 14:40 UTCMay 2, 14:55 UTC15m
2026-05-02 N782MF - May 2, 11:40 UTCMay 2, 12:55 UTC1h 15m
2026-05-02 N782MF - May 2, 03:15 UTCMay 2, 04:10 UTC55m
2026-05-01 N782MF - May 1, 22:25 UTCMay 2, 00:40 UTC2h 15m
2026-05-01 N782MF - May 1, 20:50 UTCMay 1, 21:25 UTC35m
2026-04-30 N782MF - Apr 30, 22:40 UTCApr 30, 23:55 UTC1h 15m
2026-04-30 N782MF - Apr 30, 20:45 UTCApr 30, 21:45 UTC1h 0m
2026-04-30 N782MF - Apr 30, 14:40 UTCApr 30, 15:55 UTC1h 15m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N782MF page for operator, model, and routing details .

Mode-S AA990D frequently asked

What is Mode-S code AA990D?
AA990D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N782MF.
Where is Mode-S AA990D registered?
Mode-S code AA990D is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AA990D broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA990D, octal 52514415, decimal 11,180,301.
What flights does AA990D operate?
Mode-S AA990D has broadcast 1 distinct callsign, including N782MF.