Apparatus

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sensors Mode-S transponder

A6EE89

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N546DH · BOMBARDIER CL-600 Challenger · operated by RDH AIR LLC

Hex
A6EE89
Octal
51567211
Decimal
10,940,041
Country
US
Tail
N546DH
Type
CL60
No current signal · last broadcast 4h ago
Flights observed
36
Distinct callsigns
1
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S A6EE89.

Country allocation

The ICAO 24-bit address A6EE89 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
JTL546 Jetall Holdings 36 2026-06-02

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-06-02 JTL546 DAY → CLT Jun 2, 14:35 UTCJun 2, 16:35 UTC2h 0m
2026-06-01 JTL546 DAY → CLT Jun 1, 17:25 UTCJun 1, 18:20 UTC55m
2026-05-30 JTL546 DAY → CLT May 30, 17:55 UTCMay 30, 19:45 UTC1h 50m
2026-05-30 JTL546 DAY → CLT May 30, 15:00 UTCMay 30, 15:50 UTC50m
2026-05-28 JTL546 DAY → CLT May 28, 18:00 UTCMay 28, 20:30 UTC2h 30m
2026-05-28 JTL546 DAY → CLT May 28, 16:20 UTCMay 28, 17:30 UTC1h 10m
2026-05-26 JTL546 DAY → CLT May 26, 12:45 UTCMay 26, 17:20 UTC4h 35m
2026-05-23 JTL546 DAY → CLT May 23, 20:25 UTCMay 23, 22:05 UTC1h 40m
2026-05-23 JTL546 DAY → CLT May 23, 18:35 UTCMay 23, 19:55 UTC1h 20m
2026-05-23 JTL546 DAY → CLT May 23, 16:25 UTCMay 23, 17:15 UTC50m
2026-05-23 JTL546 DAY → CLT May 23, 14:55 UTCMay 23, 15:35 UTC40m
2026-05-22 JTL546 DAY → CLT May 22, 16:45 UTCMay 22, 17:35 UTC50m
2026-05-22 JTL546 DAY → CLT May 22, 14:30 UTCMay 22, 15:55 UTC1h 25m
2026-05-22 JTL546 DAY → CLT May 22, 12:40 UTCMay 22, 13:10 UTC30m
2026-05-21 JTL546 DAY → CLT May 21, 22:40 UTCMay 22, 00:00 UTC1h 20m
2026-05-21 JTL546 DAY → CLT May 21, 20:20 UTCMay 21, 21:15 UTC55m
2026-05-01 JTL546 DAY → CLT May 1, 21:30 UTCMay 2, 00:15 UTC2h 45m
2026-04-30 JTL546 DAY → CLT Apr 30, 18:45 UTCApr 30, 19:30 UTC45m
2026-04-29 JTL546 DAY → CLT Apr 29, 16:55 UTCApr 29, 18:50 UTC1h 55m
2026-04-29 JTL546 DAY → CLT Apr 29, 14:50 UTCApr 29, 15:55 UTC1h 5m
2026-04-28 JTL546 DAY → CLT Apr 28, 17:50 UTCApr 28, 18:35 UTC45m
2026-04-27 JTL546 DAY → CLT Apr 27, 20:55 UTCApr 27, 21:45 UTC50m
2026-04-27 JTL546 DAY → CLT Apr 27, 18:00 UTCApr 27, 18:35 UTC35m
2026-04-26 JTL546 DAY → CLT Apr 26, 13:55 UTCApr 26, 16:20 UTC2h 25m
2026-04-23 JTL546 DAY → CLT Apr 23, 18:55 UTCApr 23, 21:55 UTC3h 0m
2026-04-23 JTL546 DAY → CLT Apr 23, 16:45 UTCApr 23, 18:05 UTC1h 20m
2026-04-22 JTL546 DAY → CLT Apr 22, 15:10 UTCApr 22, 16:55 UTC1h 45m
2026-04-22 JTL546 DAY → CLT Apr 22, 03:50 UTCApr 22, 04:55 UTC1h 5m
2026-04-21 JTL546 DAY → CLT Apr 21, 17:20 UTCApr 21, 18:40 UTC1h 20m
2026-04-20 JTL546 DAY → CLT Apr 20, 02:10 UTCApr 20, 03:45 UTC1h 35m
2026-04-19 JTL546 DAY → CLT Apr 19, 23:00 UTCApr 20, 01:25 UTC2h 25m
2026-04-16 JTL546 DAY → CLT Apr 16, 21:14 UTCApr 16, 21:50 UTC35m
2026-04-16 JTL546 DAY → CLT Apr 16, 19:15 UTCApr 16, 21:10 UTC1h 55m
2026-04-15 JTL546 DAY → CLT Apr 15, 21:05 UTCApr 15, 22:10 UTC1h 5m
2026-04-15 JTL546 DAY → CLT Apr 15, 19:45 UTCApr 15, 21:00 UTC1h 15m
2026-04-15 JTL546 DAY → CLT Apr 15, 17:05 UTCApr 15, 17:50 UTC45m

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 N546DH page for operator, model, and routing details .

Mode-S A6EE89 frequently asked

What is Mode-S code A6EE89?
A6EE89 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N546DH.
Where is Mode-S A6EE89 registered?
Mode-S code A6EE89 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 A6EE89 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6EE89, octal 51567211, decimal 10,940,041.
What flights does A6EE89 operate?
Mode-S A6EE89 has broadcast 1 distinct callsign, including JTL546.