sensors Mode-S transponder

AC9864

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N910TR · CESSNA 560 Citation Ultra · operated by DUTCH AVIATION LLC

Hex
AC9864
Octal
53114144
Decimal
11,311,204
Country
US
Tail
N910TR
Type
C560
No current signal · last broadcast Jul 25, 21:35 UTC
Flights observed
34
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 21:35 UTC

Last known position

Most recent position reported by Mode-S AC9864.

Country allocation

The ICAO 24-bit address AC9864 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
N910TR - 34 2026-07-25

Recent flights last 34

DateFlightRouteTakeoffLandingDuration
2026-07-25 N910TR - Jul 25, 19:00 UTCJul 25, 21:35 UTC2h 35m
2026-07-25 N910TR - Jul 25, 15:15 UTCJul 25, 17:30 UTC2h 15m
2026-07-23 N910TR - Jul 23, 12:35 UTCJul 23, 20:50 UTC8h 15m
2026-07-21 N910TR - Jul 21, 19:25 UTCJul 21, 22:25 UTC3h 0m
2026-07-20 N910TR - Jul 20, 12:10 UTCJul 20, 14:35 UTC2h 25m
2026-06-25 N910TR - Jun 25, 20:39 UTCJun 25, 22:39 UTC2h 0m
2026-06-23 N910TR - Jun 23, 14:15 UTCJun 23, 16:39 UTC2h 25m
2026-06-19 N910TR - Jun 19, 16:14 UTCJun 19, 17:09 UTC55m
2026-06-19 N910TR - Jun 19, 14:04 UTCJun 19, 14:54 UTC50m
2026-06-15 N910TR - Jun 15, 17:30 UTCJun 15, 18:25 UTC55m
2026-06-15 N910TR - Jun 15, 15:59 UTCJun 15, 16:49 UTC50m
2026-06-14 N910TR - Jun 14, 20:40 UTCJun 14, 21:15 UTC35m
2026-06-14 N910TR - Jun 14, 19:30 UTCJun 14, 20:05 UTC35m
2026-06-14 N910TR - Jun 14, 18:25 UTCJun 14, 18:35 UTC10m
2026-06-14 N910TR - Jun 14, 13:35 UTCJun 14, 15:25 UTC1h 50m
2026-06-11 N910TR - Jun 11, 16:55 UTCJun 11, 21:45 UTC4h 50m
2026-06-11 N910TR - Jun 11, 14:30 UTCJun 11, 15:35 UTC1h 5m
2026-06-11 N910TR - Jun 11, 13:10 UTCJun 11, 13:55 UTC45m
2026-06-09 N910TR - Jun 9, 23:15 UTCJun 10, 04:30 UTC5h 15m
2026-06-05 N910TR - Jun 5, 18:20 UTCJun 5, 18:30 UTC10m
2026-06-01 N910TR - Jun 1, 13:40 UTCJun 1, 13:50 UTC10m
2026-05-19 N910TR - May 19, 17:10 UTCMay 19, 18:05 UTC55m
2026-05-19 N910TR - May 19, 12:25 UTCMay 19, 13:40 UTC1h 15m
2026-05-14 N910TR - May 14, 18:40 UTCMay 14, 19:05 UTC25m
2026-05-14 N910TR - May 14, 13:40 UTCMay 14, 14:05 UTC25m
2026-05-11 N910TR - May 11, 20:45 UTCMay 11, 21:05 UTC20m
2026-05-11 N910TR - May 11, 17:00 UTCMay 11, 17:55 UTC55m
2026-05-11 N910TR - May 11, 13:20 UTCMay 11, 14:25 UTC1h 5m
2026-05-05 N910TR - May 5, 20:05 UTCMay 5, 20:30 UTC25m
2026-05-05 N910TR - May 5, 15:50 UTCMay 5, 16:20 UTC30m
2026-04-21 N910TR - Apr 21, 19:10 UTCApr 21, 19:45 UTC35m
2026-04-21 N910TR - Apr 21, 14:55 UTCApr 21, 15:20 UTC25m
2026-04-17 N910TR - Apr 17, 21:55 UTCApr 17, 22:10 UTC15m
2026-04-17 N910TR - Apr 17, 13:20 UTCApr 17, 14:10 UTC50m

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 N910TR page for operator, model, and routing details .

Mode-S AC9864 frequently asked

What is Mode-S code AC9864?
AC9864 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N910TR.
Where is Mode-S AC9864 registered?
Mode-S code AC9864 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 AC9864 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC9864, octal 53114144, decimal 11,311,204.
What flights does AC9864 operate?
Mode-S AC9864 has broadcast 1 distinct callsign, including N910TR.