Apparatus

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sensors Mode-S transponder

A6DCA9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N541LM · BEECH 200 Super King Air · operated by CORSAIR TWO LLC

Hex
A6DCA9
Octal
51556251
Decimal
10,935,465
Country
US
Tail
N541LM
Type
BE20
No current signal · last broadcast 3d ago
Flights observed
160
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A6DCA9.

Country allocation

The ICAO 24-bit address A6DCA9 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
N541LM - 157 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 N541LM VDZ → ANC Jul 10, 20:20 UTCJul 10, 20:55 UTC35m
2026-07-10 N541LM - Jul 10, 18:45 UTCJul 10, 19:15 UTC30m
2026-07-10 N541LM - Jul 10, 05:50 UTCJul 10, 07:05 UTC1h 15m
2026-07-10 N541LM - Jul 10, 03:25 UTCJul 10, 04:30 UTC1h 5m
2026-07-10 N541LM - Jul 10, 00:30 UTCJul 10, 01:40 UTC1h 10m
2026-07-09 - - Jul 9, 21:15 UTCJul 9, 22:30 UTC1h 15m
2026-07-09 N541LM - Jul 9, 09:50 UTCJul 9, 11:05 UTC1h 15m
2026-07-09 N541LM - Jul 9, 07:35 UTCJul 9, 08:45 UTC1h 10m
2026-07-09 N541LM - Jul 9, 05:15 UTCJul 9, 05:45 UTC30m
2026-07-09 N541LM ANC → SWD Jul 9, 04:10 UTCJul 9, 04:30 UTC20m
2026-07-07 N541LM - Jul 7, 12:00 UTCJul 7, 13:05 UTC1h 5m
2026-07-07 N541LM - Jul 7, 09:05 UTCJul 7, 10:20 UTC1h 15m
2026-07-07 N541LM - Jul 7, 06:30 UTCJul 7, 07:30 UTC1h 0m
2026-07-07 N541LM - Jul 7, 04:15 UTCJul 7, 05:15 UTC1h 0m
2026-07-06 N541LM - Jul 6, 06:45 UTCJul 6, 07:50 UTC1h 5m
2026-07-06 N541LM - Jul 6, 03:55 UTCJul 6, 05:05 UTC1h 10m
2026-07-05 N541LM - Jul 5, 20:40 UTCJul 5, 21:55 UTC1h 15m
2026-07-05 N541LM - Jul 5, 17:55 UTCJul 5, 19:00 UTC1h 5m
2026-07-05 N541LM - Jul 5, 07:25 UTCJul 5, 08:35 UTC1h 10m
2026-07-05 N541LM - Jul 5, 03:25 UTCJul 5, 04:55 UTC1h 30m
2026-07-03 N541LM - Jul 3, 07:00 UTCJul 3, 07:50 UTC50m
2026-07-03 N541LM - Jul 3, 04:45 UTCJul 3, 04:55 UTC10m
2026-07-03 N541LM ANC → SXQ Jul 3, 03:35 UTCJul 3, 03:50 UTC15m
2026-07-01 N541LM - Jul 1, 07:10 UTCJul 1, 08:15 UTC1h 5m
2026-07-01 N541LM - Jul 1, 04:00 UTCJul 1, 05:20 UTC1h 20m
2026-06-30 N541LM - Jun 30, 22:40 UTCJun 30, 23:00 UTC20m
2026-06-30 - - Jun 30, 20:50 UTCJun 30, 21:20 UTC30m
2026-06-30 N541LM - Jun 30, 19:40 UTCJun 30, 20:05 UTC25m
2026-06-30 N541LM - Jun 30, 06:40 UTCJun 30, 07:50 UTC1h 10m
2026-06-30 N541LM - Jun 30, 04:05 UTCJun 30, 05:15 UTC1h 10m
2026-06-29 N541LM - Jun 29, 10:34 UTCJun 29, 11:39 UTC1h 5m
2026-06-29 N541LM - Jun 29, 06:29 UTCJun 29, 07:44 UTC1h 15m
2026-06-29 N541LM - Jun 29, 04:45 UTCJun 29, 05:50 UTC1h 5m
2026-06-28 N541LM VDZ → ANC Jun 28, 07:44 UTCJun 28, 08:14 UTC30m
2026-06-28 N541LM - Jun 28, 05:45 UTCJun 28, 06:15 UTC30m
2026-06-26 N541LM - Jun 26, 00:50 UTCJun 26, 02:00 UTC1h 10m
2026-06-25 N541LM - Jun 25, 22:10 UTCJun 25, 23:14 UTC1h 5m
2026-06-22 N541LM - Jun 22, 17:50 UTCJun 22, 19:00 UTC1h 10m
2026-06-18 N541LM - Jun 18, 01:25 UTCJun 18, 02:20 UTC55m
2026-06-17 N541LM - Jun 17, 22:00 UTCJun 17, 23:20 UTC1h 20m
2026-06-17 N541LM ANC → ADQ Jun 17, 03:05 UTCJun 17, 04:00 UTC55m
2026-06-17 N541LM - Jun 17, 00:20 UTCJun 17, 01:15 UTC55m
2026-06-16 N541LM - Jun 16, 05:20 UTCJun 16, 06:20 UTC1h 0m
2026-06-16 N541LM - Jun 16, 02:45 UTCJun 16, 03:39 UTC55m
2026-06-11 N541LM - Jun 11, 14:20 UTCJun 11, 15:20 UTC1h 0m
2026-06-11 N541LM - Jun 11, 10:30 UTCJun 11, 12:05 UTC1h 35m
2026-06-11 N541LM - Jun 11, 08:15 UTCJun 11, 09:15 UTC1h 0m
2026-06-10 N541LM - Jun 10, 12:00 UTCJun 10, 12:50 UTC50m
2026-06-10 N541LM - Jun 10, 09:25 UTCJun 10, 10:30 UTC1h 5m
2026-06-10 N541LM - Jun 10, 06:30 UTCJun 10, 07:50 UTC1h 20m

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 N541LM page for operator, model, and routing details .

Mode-S A6DCA9 frequently asked

What is Mode-S code A6DCA9?
A6DCA9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N541LM.
Where is Mode-S A6DCA9 registered?
Mode-S code A6DCA9 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 A6DCA9 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 A6DCA9, octal 51556251, decimal 10,935,465.
What flights does A6DCA9 operate?
Mode-S A6DCA9 has broadcast 1 distinct callsign, including N541LM.