Apparatus

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sensors Mode-S transponder

A74D90

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N57RJ · CIRRUS SR-22 · operated by D&J TRAINING PLANES LLC

Hex
A74D90
Octal
51646620
Decimal
10,964,368
Country
US
Tail
N57RJ
Type
SR22
No current signal · last broadcast 3d ago
Flights observed
60
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A74D90.

Country allocation

The ICAO 24-bit address A74D90 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
N57RJ - 60 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N57RJ LGU → LGU Jul 24, 22:50 UTCJul 25, 00:00 UTC1h 10m
2026-07-24 N57RJ LGU → LGU Jul 24, 20:45 UTCJul 24, 21:50 UTC1h 5m
2026-07-22 N57RJ LGU → LGU Jul 22, 18:50 UTCJul 22, 19:40 UTC50m
2026-07-20 N57RJ - Jul 20, 19:25 UTCJul 20, 20:10 UTC45m
2026-07-20 N57RJ - Jul 20, 14:10 UTCJul 20, 15:05 UTC55m
2026-07-19 N57RJ - Jul 19, 05:40 UTCJul 19, 06:05 UTC25m
2026-07-19 N57RJ LGU → LGU Jul 19, 05:25 UTCJul 19, 05:35 UTC10m
2026-07-18 N57RJ - Jul 18, 17:35 UTCJul 18, 17:50 UTC15m
2026-07-18 N57RJ - Jul 18, 14:40 UTCJul 18, 14:55 UTC15m
2026-07-15 N57RJ LGU → LGU Jul 15, 01:10 UTCJul 15, 02:25 UTC1h 15m
2026-07-11 N57RJ - Jul 11, 00:45 UTCJul 11, 01:15 UTC30m
2026-07-10 N57RJ - Jul 10, 23:20 UTCJul 10, 23:55 UTC35m
2026-07-10 N57RJ - Jul 10, 22:15 UTCJul 10, 22:40 UTC25m
2026-07-09 N57RJ - Jul 9, 18:15 UTCJul 9, 18:30 UTC15m
2026-07-09 N57RJ - Jul 9, 15:55 UTCJul 9, 16:35 UTC40m
2026-07-02 N57RJ LGU → LGU Jul 2, 04:00 UTCJul 2, 05:40 UTC1h 40m
2026-06-30 N57RJ LGU → LGU Jun 30, 18:50 UTCJun 30, 19:40 UTC50m
2026-06-26 N57RJ - Jun 26, 06:25 UTCJun 26, 06:50 UTC25m
2026-06-26 N57RJ - Jun 26, 03:20 UTCJun 26, 03:54 UTC35m
2026-06-23 N57RJ LGU → LGU Jun 23, 15:50 UTCJun 23, 16:29 UTC40m
2026-06-20 N57RJ LGU → LGU Jun 20, 16:55 UTCJun 20, 17:24 UTC30m
2026-06-18 N57RJ - Jun 18, 23:15 UTCJun 18, 23:35 UTC20m
2026-06-18 N57RJ - Jun 18, 21:35 UTCJun 18, 21:55 UTC20m
2026-06-18 N57RJ - Jun 18, 19:05 UTCJun 18, 19:15 UTC10m
2026-06-18 N57RJ - Jun 18, 17:25 UTCJun 18, 18:10 UTC45m
2026-06-17 N57RJ - Jun 17, 17:25 UTCJun 17, 17:30 UTC5m
2026-06-17 N57RJ - Jun 17, 14:55 UTCJun 17, 15:05 UTC10m
2026-06-15 N57RJ LGU → LGU Jun 15, 15:40 UTCJun 15, 16:49 UTC1h 10m
2026-06-10 N57RJ LGU → LGU Jun 10, 21:05 UTCJun 10, 22:10 UTC1h 5m
2026-06-09 N57RJ LGU → LGU Jun 9, 01:55 UTCJun 9, 03:00 UTC1h 5m
2026-06-04 N57RJ LGU → LGU Jun 4, 22:50 UTCJun 4, 23:40 UTC50m
2026-05-31 N57RJ - May 31, 00:45 UTCMay 31, 01:11 UTC26m
2026-05-28 N57RJ LGU → LGU May 28, 00:40 UTCMay 28, 01:35 UTC55m
2026-05-23 N57RJ LGU → LGU May 23, 23:00 UTCMay 23, 23:45 UTC45m
2026-05-12 N57RJ - May 12, 16:50 UTCMay 12, 17:15 UTC25m
2026-05-09 N57RJ LGU → LGU May 9, 14:20 UTCMay 9, 14:55 UTC35m
2026-05-06 N57RJ LGU → LGU May 6, 20:50 UTCMay 6, 21:45 UTC55m
2026-05-06 N57RJ LGU → LGU May 6, 03:50 UTCMay 6, 04:25 UTC35m
2026-05-05 N57RJ LGU → LGU May 5, 21:15 UTCMay 5, 22:20 UTC1h 5m
2026-05-04 N57RJ LGU → LGU May 4, 14:35 UTCMay 4, 15:50 UTC1h 15m
2026-04-29 N57RJ LGU → LGU Apr 29, 14:40 UTCApr 29, 15:50 UTC1h 10m
2026-04-28 N57RJ - Apr 28, 15:50 UTCApr 28, 16:10 UTC20m
2026-04-28 N57RJ - Apr 28, 14:40 UTCApr 28, 15:00 UTC20m
2026-04-25 N57RJ - Apr 25, 16:25 UTCApr 25, 16:50 UTC25m
2026-04-25 N57RJ - Apr 25, 15:25 UTCApr 25, 15:50 UTC25m
2026-04-24 N57RJ - Apr 24, 22:50 UTCApr 24, 23:05 UTC15m
2026-04-24 N57RJ - Apr 24, 21:25 UTCApr 24, 21:40 UTC15m
2026-04-24 N57RJ - Apr 24, 19:10 UTCApr 24, 20:00 UTC50m
2026-04-24 N57RJ - Apr 24, 17:25 UTCApr 24, 18:20 UTC55m
2026-04-24 N57RJ LGU → LGU Apr 24, 17:05 UTCApr 24, 17:15 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 N57RJ page for operator, model, and routing details .

Mode-S A74D90 frequently asked

What is Mode-S code A74D90?
A74D90 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N57RJ.
Where is Mode-S A74D90 registered?
Mode-S code A74D90 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 A74D90 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A74D90, octal 51646620, decimal 10,964,368.
What flights does A74D90 operate?
Mode-S A74D90 has broadcast 1 distinct callsign, including N57RJ.