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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 Jul 26, 22:15 UTC
Flights observed
180
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 22:15 UTC

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 - 177 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N541LM - Jul 26, 21:50 UTCJul 26, 22:15 UTC25m
2026-07-26 N541LM - Jul 26, 17:50 UTCJul 26, 18:55 UTC1h 5m
2026-07-26 N541LM ADQ → ANC Jul 26, 16:15 UTCJul 26, 17:15 UTC1h 0m
2026-07-26 N541LM ANC → ADQ Jul 26, 07:25 UTCJul 26, 08:20 UTC55m
2026-07-26 N541LM - Jul 26, 04:50 UTCJul 26, 05:45 UTC55m
2026-07-25 N541LM ANC → ADQ Jul 25, 11:35 UTCJul 25, 12:25 UTC50m
2026-07-25 N541LM - Jul 25, 09:20 UTCJul 25, 09:50 UTC30m
2026-07-25 N541LM - Jul 25, 06:40 UTCJul 25, 08:00 UTC1h 20m
2026-07-24 N541LM - Jul 24, 04:30 UTCJul 24, 05:25 UTC55m
2026-07-24 N541LM - Jul 24, 01:30 UTCJul 24, 02:35 UTC1h 5m
2026-07-23 N541LM - Jul 23, 22:20 UTCJul 24, 00:10 UTC1h 50m
2026-07-22 N541LM ANC → ADQ Jul 22, 01:00 UTCJul 22, 02:05 UTC1h 5m
2026-07-21 N541LM - Jul 21, 21:35 UTCJul 21, 22:40 UTC1h 5m
2026-07-21 N541LM - Jul 21, 18:20 UTCJul 21, 19:45 UTC1h 25m
2026-07-19 N541LM ANC → ADQ Jul 19, 16:55 UTCJul 19, 18:20 UTC1h 25m
2026-07-19 N541LM - Jul 19, 13:40 UTCJul 19, 14:50 UTC1h 10m
2026-07-19 N541LM - Jul 19, 10:55 UTCJul 19, 12:00 UTC1h 5m
2026-07-18 N541LM - Jul 18, 10:45 UTCJul 18, 11:50 UTC1h 5m
2026-07-18 N541LM - Jul 18, 08:35 UTCJul 18, 09:25 UTC50m
2026-07-18 N541LM ANC → ADQ Jul 18, 06:05 UTCJul 18, 07:05 UTC1h 0m
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

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 Jul 26, 22:15 UTC.
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.