Apparatus

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sensors Mode-S transponder

AAB31A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N789MT · operated by TREXAIR AVIATION ACADEMY LLC

Hex
AAB31A
Octal
52531432
Decimal
11,186,970
Country
US
Tail
N789MT
Type
RV12
Broadcasting now · callsign N789MT · 1,725 ft
Flights observed
73
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Current position

AAB31A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AAB31A 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
N789MT - 73 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 N789MT - May 30, 16:15 UTCMay 30, 16:30 UTC15m
2026-05-29 N789MT CCR → CCR May 29, 22:35 UTCMay 29, 22:50 UTC15m
2026-05-26 N789MT CCR → CCR May 26, 19:34 UTCMay 26, 20:40 UTC1h 5m
2026-05-23 N789MT - May 23, 20:20 UTCMay 23, 21:15 UTC55m
2026-05-23 N789MT CCR → CCR May 23, 17:40 UTCMay 23, 18:15 UTC35m
2026-05-23 N789MT CCR → CCR May 23, 15:15 UTCMay 23, 16:15 UTC1h 0m
2026-05-22 N789MT CCR → CCR May 22, 19:45 UTCMay 22, 20:40 UTC55m
2026-05-22 N789MT CCR → CCR May 22, 17:50 UTCMay 22, 18:40 UTC50m
2026-05-22 N789MT - May 22, 00:20 UTCMay 22, 01:15 UTC55m
2026-05-21 N789MT CCR → CCR May 21, 20:45 UTCMay 21, 20:50 UTC5m
2026-05-21 N789MT CCR → CCR May 21, 19:45 UTCMay 21, 20:40 UTC55m
2026-05-21 N789MT CCR → CCR May 21, 18:20 UTCMay 21, 19:00 UTC40m
2026-05-21 N789MT CCR → CCR May 21, 15:50 UTCMay 21, 16:40 UTC50m
2026-05-20 N789MT CCR → CCR May 20, 22:15 UTCMay 20, 23:15 UTC1h 0m
2026-05-20 N789MT - May 20, 20:35 UTCMay 20, 21:20 UTC45m
2026-05-20 N789MT - May 20, 19:00 UTCMay 20, 19:40 UTC40m
2026-05-20 N789MT CCR → CCR May 20, 17:30 UTCMay 20, 18:00 UTC30m
2026-05-19 N789MT CCR → CCR May 19, 23:25 UTCMay 20, 00:10 UTC45m
2026-05-19 N789MT CCR → CCR May 19, 21:15 UTCMay 19, 22:10 UTC55m
2026-05-19 N789MT CCR → CCR May 19, 19:20 UTCMay 19, 19:50 UTC30m
2026-05-19 N789MT CCR → CCR May 19, 16:05 UTCMay 19, 17:05 UTC1h 0m
2026-05-17 N789MT - May 17, 18:25 UTCMay 17, 18:55 UTC30m
2026-05-17 N789MT CCR → CCR May 17, 17:35 UTCMay 17, 17:50 UTC15m
2026-05-17 N789MT CCR → CCR May 17, 17:20 UTCMay 17, 17:30 UTC10m
2026-05-17 N789MT - May 17, 15:45 UTCMay 17, 16:01 UTC15m
2026-05-15 N789MT - May 15, 23:10 UTCMay 15, 23:25 UTC15m
2026-05-15 N789MT - May 15, 21:40 UTCMay 15, 22:30 UTC50m
2026-05-15 N789MT - May 15, 18:05 UTCMay 15, 19:15 UTC1h 10m
2026-05-14 N789MT CCR → CCR May 14, 16:20 UTCMay 14, 18:00 UTC1h 40m
2026-05-08 N789MT CCR → CCR May 8, 21:25 UTCMay 8, 22:10 UTC45m
2026-05-08 N789MT CCR → CCR May 8, 17:15 UTCMay 8, 18:30 UTC1h 15m
2026-05-07 N789MT - May 7, 23:09 UTCMay 8, 00:05 UTC55m
2026-05-07 N789MT CCR → CCR May 7, 21:20 UTCMay 7, 22:00 UTC40m
2026-05-07 N789MT CCR → CCR May 7, 18:05 UTCMay 7, 18:15 UTC10m
2026-05-07 N789MT CCR → CCR May 7, 17:55 UTCMay 7, 18:00 UTC5m
2026-05-06 N789MT - May 6, 22:00 UTCMay 6, 23:20 UTC1h 20m
2026-05-06 N789MT CCR → CCR May 6, 20:15 UTCMay 6, 20:40 UTC25m
2026-05-06 N789MT CCR → CCR May 6, 17:45 UTCMay 6, 18:20 UTC35m
2026-05-06 N789MT CCR → CCR May 6, 15:50 UTCMay 6, 16:40 UTC50m
2026-05-05 N789MT CCR → CCR May 5, 22:55 UTCMay 6, 00:20 UTC1h 25m
2026-05-04 N789MT - May 4, 18:35 UTCMay 4, 19:10 UTC35m
2026-05-04 N789MT - May 4, 18:05 UTCMay 4, 18:30 UTC25m
2026-05-03 N789MT CCR → CCR May 3, 16:34 UTCMay 3, 16:50 UTC15m
2026-05-03 N789MT CCR → CCR May 3, 15:50 UTCMay 3, 16:09 UTC20m
2026-05-02 N789MT CCR → CCR May 2, 19:40 UTCMay 2, 20:45 UTC1h 5m
2026-05-02 N789MT CCR → CCR May 2, 15:25 UTCMay 2, 16:20 UTC55m
2026-05-01 N789MT CCR → CCR May 1, 23:45 UTCMay 2, 01:10 UTC1h 25m
2026-05-01 N789MT CCR → CCR May 1, 20:45 UTCMay 1, 21:15 UTC30m
2026-05-01 N789MT CCR → CCR May 1, 17:30 UTCMay 1, 18:55 UTC1h 25m
2026-04-30 N789MT CCR → CCR Apr 30, 23:45 UTCMay 1, 00:15 UTC30m

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 N789MT page for operator, model, and routing details .

Mode-S AAB31A frequently asked

What is Mode-S code AAB31A?
AAB31A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N789MT.
Where is Mode-S AAB31A registered?
Mode-S code AAB31A 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 AAB31A broadcasting right now?
Yes. Mode-S AAB31A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAB31A, octal 52531432, decimal 11,186,970.
What flights does AAB31A operate?
Mode-S AAB31A has broadcast 1 distinct callsign, including N789MT.