Apparatus

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sensors Mode-S transponder

A65B43

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5089H · operated by ROBINSON HELICOPTER COMPANY

Hex
A65B43
Octal
51455503
Decimal
10,902,339
Country
US
Tail
N5089H
No current signal · last broadcast 11d ago
Flights observed
60
Distinct callsigns
2
Country
US
Last broadcast
11d ago

Last known position

Most recent position reported by Mode-S A65B43.

Country allocation

The ICAO 24-bit address A65B43 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 2 distinct

Callsign Airline Flights Last seen
N5089H - 37 2026-07-02
SGE69 - 23 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-02 N5089H - Jul 2, 17:25 UTCJul 2, 17:50 UTC25m
2026-07-01 N5089H - Jul 1, 21:55 UTCJul 1, 22:20 UTC25m
2026-06-29 N5089H - Jun 29, 15:45 UTCJun 29, 16:04 UTC20m
2026-06-29 N5089H - Jun 29, 13:30 UTCJun 29, 14:54 UTC1h 25m
2026-06-29 N5089H - Jun 29, 00:54 UTCJun 29, 01:29 UTC35m
2026-06-29 N5089H - Jun 29, 00:05 UTCJun 29, 00:20 UTC15m
2026-06-28 N5089H - Jun 28, 21:50 UTCJun 28, 23:25 UTC1h 35m
2026-06-28 N5089H - Jun 28, 19:04 UTCJun 28, 19:59 UTC55m
2026-06-15 N5089H - Jun 15, 21:50 UTCJun 15, 22:15 UTC25m
2026-06-14 N5089H - Jun 14, 22:40 UTCJun 14, 23:10 UTC30m
2026-06-09 N5089H - Jun 9, 18:15 UTCJun 9, 18:50 UTC35m
2026-06-09 N5089H - Jun 9, 14:15 UTCJun 9, 15:00 UTC45m
2026-06-09 N5089H - Jun 9, 12:05 UTCJun 9, 12:20 UTC15m
2026-06-07 N5089H - Jun 7, 17:25 UTCJun 7, 17:55 UTC30m
2026-06-07 N5089H - Jun 7, 13:25 UTCJun 7, 14:15 UTC50m
2026-06-06 N5089H - Jun 6, 13:44 UTCJun 6, 15:15 UTC1h 30m
2026-06-06 N5089H CYS → FNL Jun 6, 01:55 UTCJun 6, 02:30 UTC35m
2026-06-05 N5089H - Jun 5, 17:55 UTCJun 5, 18:05 UTC10m
2026-06-05 N5089H - Jun 5, 13:30 UTCJun 5, 13:45 UTC15m
2026-06-05 N5089H - Jun 5, 12:05 UTCJun 5, 12:35 UTC30m
2026-06-03 N5089H - Jun 3, 22:20 UTCJun 3, 22:30 UTC10m
2026-06-02 N5089H - Jun 2, 18:00 UTCJun 2, 18:15 UTC15m
2026-06-02 N5089H - Jun 2, 14:10 UTCJun 2, 14:20 UTC10m
2026-06-02 N5089H - Jun 2, 13:10 UTCJun 2, 13:35 UTC25m
2026-06-02 N5089H - Jun 2, 11:05 UTCJun 2, 12:05 UTC1h 0m
2026-06-01 N5089H - Jun 1, 21:25 UTCJun 1, 22:00 UTC35m
2026-06-01 N5089H - Jun 1, 19:55 UTCJun 1, 20:30 UTC35m
2026-06-01 N5089H - Jun 1, 18:35 UTCJun 1, 18:50 UTC15m
2026-06-01 N5089H - Jun 1, 00:20 UTCJun 1, 01:10 UTC50m
2026-05-31 N5089H - May 31, 23:25 UTCMay 31, 23:40 UTC15m
2026-05-31 N5089H - May 31, 21:50 UTCMay 31, 22:05 UTC15m
2026-05-31 N5089H - May 31, 17:35 UTCMay 31, 18:00 UTC25m
2026-05-14 N5089H - May 14, 22:00 UTCMay 14, 22:15 UTC15m
2026-05-14 N5089H - May 14, 21:20 UTCMay 14, 21:35 UTC15m
2026-05-11 N5089H - May 11, 11:35 UTCMay 11, 13:30 UTC1h 55m
2026-05-09 N5089H - May 9, 20:44 UTCMay 9, 21:00 UTC15m
2026-05-09 N5089H - May 9, 16:55 UTCMay 9, 17:30 UTC35m
2026-04-27 SGE69 - Apr 27, 21:05 UTCApr 27, 21:35 UTC30m
2026-04-27 SGE69 - Apr 27, 20:00 UTCApr 27, 20:15 UTC15m
2026-04-27 SGE69 - Apr 27, 17:20 UTCApr 27, 18:45 UTC1h 25m
2026-04-25 SGE69 FTW → FTW Apr 25, 14:20 UTCApr 25, 16:15 UTC1h 55m
2026-04-25 SGE69 - Apr 25, 12:40 UTCApr 25, 13:00 UTC20m
2026-04-22 SGE69 - Apr 22, 18:20 UTCApr 22, 18:35 UTC15m
2026-04-21 SGE69 FTW → FTW Apr 21, 20:50 UTCApr 21, 21:55 UTC1h 5m
2026-04-21 SGE69 FTW → FTW Apr 21, 18:25 UTCApr 21, 19:30 UTC1h 5m
2026-04-17 SGE69 - Apr 17, 17:50 UTCApr 17, 19:20 UTC1h 30m
2026-04-17 SGE69 - Apr 17, 15:35 UTCApr 17, 16:10 UTC35m
2026-04-17 SGE69 - Apr 17, 15:05 UTCApr 17, 15:15 UTC10m
2026-04-17 SGE69 - Apr 17, 13:25 UTCApr 17, 14:20 UTC55m
2026-04-17 SGE69 - Apr 17, 12:55 UTCApr 17, 13:05 UTC10m

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 N5089H page for operator, model, and routing details .

Mode-S A65B43 frequently asked

What is Mode-S code A65B43?
A65B43 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5089H.
Where is Mode-S A65B43 registered?
Mode-S code A65B43 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 A65B43 broadcasting right now?
No active broadcast right now. Last signal was 11d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A65B43, octal 51455503, decimal 10,902,339.
What flights does A65B43 operate?
Mode-S A65B43 has broadcast 2 distinct callsigns, including N5089H, SGE69.