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sensors Mode-S transponder

AD9733

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N975LA · operated by TEXTRON AVIATION INC

Hex
AD9733
Octal
53313463
Decimal
11,376,435
Country
US
Tail
N975LA
No current signal · last broadcast Jul 24, 23:40 UTC
Flights observed
156
Distinct callsigns
11
Country
US
Last broadcast
Jul 24, 23:40 UTC

Last known position

Most recent position reported by Mode-S AD9733.

Country allocation

The ICAO 24-bit address AD9733 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 11 distinct

Callsign Airline Flights Last seen
STT841 Air St. Thomas 30 2026-07-24
STT462 Air St. Thomas 29 2026-07-24
STT440 Air St. Thomas 29 2026-07-22
STT863 Air St. Thomas 24 2026-07-24
STT464 Air St. Thomas 20 2026-07-23
STT865 Air St. Thomas 15 2026-07-23
STT867 Air St. Thomas 5 2026-07-24
STT9752 - 1 2026-07-12
STT975 - 1 2026-07-11
STT869 Air St. Thomas 1 2026-06-05
STT466 Air St. Thomas 1 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 STT867 LNY → HNL Jul 24, 22:40 UTCJul 24, 23:40 UTC1h 0m
2026-07-24 STT863 LNY → HNL Jul 24, 21:15 UTCJul 24, 21:40 UTC25m
2026-07-24 STT462 HNL → LNY Jul 24, 20:10 UTCJul 24, 20:35 UTC25m
2026-07-24 STT841 LNY → HNL Jul 24, 17:25 UTCJul 24, 18:40 UTC1h 15m
2026-07-23 STT865 LNY → HNL Jul 23, 22:05 UTCJul 23, 22:30 UTC25m
2026-07-23 STT464 HNL → LNY Jul 23, 21:10 UTCJul 23, 21:30 UTC20m
2026-07-23 STT841 LNY → HNL Jul 23, 16:40 UTCJul 23, 17:55 UTC1h 15m
2026-07-22 STT462 HNL → LNY Jul 22, 19:30 UTCJul 22, 22:15 UTC2h 45m
2026-07-22 STT841 - Jul 22, 18:00 UTCJul 22, 18:20 UTC20m
2026-07-22 STT440 HNL → LNY Jul 22, 17:00 UTCJul 22, 17:25 UTC25m
2026-07-21 STT464 HNL → LNY Jul 21, 22:25 UTCJul 21, 23:30 UTC1h 5m
2026-07-21 STT863 - Jul 21, 20:50 UTCJul 21, 21:15 UTC25m
2026-07-21 STT462 HNL → LNY Jul 21, 19:55 UTCJul 21, 20:15 UTC20m
2026-07-21 STT841 - Jul 21, 16:45 UTCJul 21, 17:55 UTC1h 10m
2026-07-20 STT865 LNY → HNL Jul 20, 21:50 UTCJul 20, 22:50 UTC1h 0m
2026-07-20 STT863 - Jul 20, 19:55 UTCJul 20, 21:05 UTC1h 10m
2026-07-20 STT440 HNL → LNY Jul 20, 17:00 UTCJul 20, 18:10 UTC1h 10m
2026-07-17 STT865 - Jul 17, 21:55 UTCJul 17, 23:05 UTC1h 10m
2026-07-17 STT863 - Jul 17, 20:25 UTCJul 17, 20:50 UTC25m
2026-07-17 STT462 - Jul 17, 19:25 UTCJul 17, 19:49 UTC25m
2026-07-17 STT841 - Jul 17, 16:49 UTCJul 17, 18:00 UTC1h 10m
2026-07-16 STT865 - Jul 16, 22:55 UTCJul 16, 23:10 UTC15m
2026-07-16 STT464 - Jul 16, 21:55 UTCJul 16, 22:05 UTC10m
2026-07-16 STT863 - Jul 16, 20:49 UTCJul 16, 21:10 UTC20m
2026-07-16 STT462 - Jul 16, 19:45 UTCJul 16, 20:05 UTC20m
2026-07-16 STT841 - Jul 16, 16:44 UTCJul 16, 17:54 UTC1h 10m
2026-07-15 STT462 - Jul 15, 19:05 UTCJul 15, 20:10 UTC1h 5m
2026-07-15 STT440 - Jul 15, 16:50 UTCJul 15, 17:55 UTC1h 5m
2026-07-14 STT863 - Jul 14, 19:30 UTCJul 14, 20:40 UTC1h 10m
2026-07-14 STT841 - Jul 14, 17:00 UTCJul 14, 18:05 UTC1h 5m
2026-07-13 STT464 - Jul 13, 22:00 UTCJul 13, 23:05 UTC1h 5m
2026-07-13 STT863 - Jul 13, 19:45 UTCJul 13, 20:50 UTC1h 5m
2026-07-13 STT440 - Jul 13, 17:10 UTCJul 13, 18:15 UTC1h 5m
2026-07-12 STT9752 - Jul 12, 01:20 UTCJul 12, 01:45 UTC25m
2026-07-11 STT975 - Jul 11, 21:50 UTCJul 11, 22:10 UTC20m
2026-07-09 STT863 - Jul 9, 19:40 UTCJul 9, 20:50 UTC1h 10m
2026-07-09 STT440 HNL → LNY Jul 9, 16:45 UTCJul 9, 17:50 UTC1h 5m
2026-07-08 STT462 - Jul 8, 19:15 UTCJul 8, 20:25 UTC1h 10m
2026-07-08 STT440 HNL → LNY Jul 8, 16:50 UTCJul 8, 18:05 UTC1h 15m
2026-07-07 STT462 - Jul 7, 19:10 UTCJul 7, 20:20 UTC1h 10m
2026-07-07 STT841 - Jul 7, 17:35 UTCJul 7, 17:55 UTC20m
2026-07-07 STT440 HNL → LNY Jul 7, 16:45 UTCJul 7, 17:05 UTC20m
2026-07-06 STT464 - Jul 6, 21:50 UTCJul 6, 22:50 UTC1h 0m
2026-07-06 STT462 - Jul 6, 19:20 UTCJul 6, 20:30 UTC1h 10m
2026-07-06 STT440 HNL → LNY Jul 6, 17:05 UTCJul 6, 18:10 UTC1h 5m
2026-07-03 STT867 - Jul 3, 21:50 UTCJul 3, 22:55 UTC1h 5m
2026-07-03 STT863 - Jul 3, 19:15 UTCJul 3, 20:25 UTC1h 10m
2026-07-03 STT841 - Jul 3, 16:55 UTCJul 3, 18:00 UTC1h 5m
2026-07-02 STT865 - Jul 2, 21:35 UTCJul 2, 22:40 UTC1h 5m
2026-07-02 STT462 - Jul 2, 19:20 UTCJul 2, 20:30 UTC1h 10m

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 N975LA page for operator, model, and routing details .

Mode-S AD9733 frequently asked

What is Mode-S code AD9733?
AD9733 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N975LA.
Where is Mode-S AD9733 registered?
Mode-S code AD9733 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 AD9733 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 23:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD9733, octal 53313463, decimal 11,376,435.
What flights does AD9733 operate?
Mode-S AD9733 has broadcast 11 distinct callsigns, including STT841, STT462, STT440, STT863, STT464.