Apparatus

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sensors Mode-S transponder

4D0111

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-VCH · BOEING 747-8

Hex
4D0111
Octal
23200421
Decimal
5,046,545
Country
LU
Tail
LX-VCH
Type
B748
No current signal · last broadcast 3h ago
Flights observed
198
Distinct callsigns
20
Country
LU
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4D0111.

Country allocation

The ICAO 24-bit address 4D0111 falls within the block assigned to Luxembourg (LU) by ICAO Annex 10, Volume III. Every aircraft registered in Luxembourg 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 20 distinct

Callsign Airline Flights Last seen
CLX251 - 13 2026-06-22
CLX272 Cargolux 10 2026-05-16
CLX7337 - 9 2026-07-06
CLX342 - 7 2026-06-29
CLX12V - 7 2026-04-15
CLX39 - 6 2026-07-02
CLX915 - 4 2026-04-13
CLX7334 Cargolux 4 2026-05-01
CLX7332 - 4 2026-04-15
CLX531 - 4 2026-04-16
CLX4M Cargolux 4 2026-05-14
CLX4325 - 4 2026-06-20
CLX4324 Cargolux 4 2026-05-15
CLX37 - 4 2026-07-02
CLX261 Cargolux 4 2026-05-21
CLX92 - 3 2026-04-20
CLX9001 - 3 2026-07-14
CLX84L - 3 2026-07-05
CLX7355 Cargolux 3 2026-04-25
CLX6356 - 3 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CLX9001 - Jul 14, 13:45 UTCJul 14, 14:35 UTC50m
2026-07-13 CLX9001 LUX → TPE Jul 13, 19:40 UTCJul 14, 10:35 UTC14h 55m
2026-07-13 CLX57R - Jul 13, 14:15 UTCJul 13, 15:35 UTC1h 20m
2026-07-13 CLX57R - Jul 13, 03:15 UTCJul 13, 11:35 UTC8h 20m
2026-07-12 CLX8 - Jul 12, 21:45 UTCJul 13, 00:01 UTC2h 15m
2026-07-12 CLX8 - Jul 12, 10:15 UTCJul 12, 19:20 UTC9h 5m
2026-07-11 CLX6356 - Jul 11, 20:35 UTCJul 12, 06:05 UTC9h 30m
2026-07-11 CLX6356 - Jul 11, 15:40 UTCJul 11, 16:00 UTC20m
2026-07-11 CLX6356 - Jul 11, 11:10 UTCJul 11, 13:00 UTC1h 50m
2026-07-10 CLX9425 - Jul 10, 20:25 UTCJul 11, 08:35 UTC12h 10m
2026-07-10 CLX913 - Jul 10, 12:55 UTCJul 10, 17:30 UTC4h 35m
2026-07-10 CLX913 - Jul 10, 03:00 UTCJul 10, 03:20 UTC20m
2026-07-10 CLX7954 - Jul 10, 00:15 UTCJul 10, 00:20 UTC5m
2026-07-09 CLX7954 - Jul 9, 09:00 UTCJul 9, 19:50 UTC10h 50m
2026-07-08 CLX6353 ICN → LUX Jul 8, 14:55 UTCJul 9, 05:45 UTC14h 50m
2026-07-08 CLX6353 - Jul 8, 10:30 UTCJul 8, 12:25 UTC1h 55m
2026-07-07 CLX9422 - Jul 7, 17:25 UTCJul 8, 05:45 UTC12h 20m
2026-07-07 CLX7331 - Jul 7, 02:55 UTCJul 7, 13:15 UTC10h 20m
2026-07-06 CLX7331 - Jul 6, 21:45 UTCJul 6, 22:05 UTC20m
2026-07-06 CLX7337 - Jul 6, 18:45 UTCJul 6, 19:10 UTC25m
2026-07-06 CLX7337 - Jul 6, 14:50 UTCJul 6, 16:15 UTC1h 25m
2026-07-06 CLX7337 - Jul 6, 12:30 UTCJul 6, 12:40 UTC10m
2026-07-06 CLX7337 - Jul 6, 06:15 UTCJul 6, 12:00 UTC5h 45m
2026-07-05 CLX7337 - Jul 5, 21:05 UTCJul 6, 00:45 UTC3h 40m
2026-07-05 CLX84L ORD → LUX Jul 5, 09:30 UTCJul 5, 16:40 UTC7h 10m
2026-07-05 CLX84L - Jul 5, 01:50 UTCJul 5, 02:10 UTC20m
2026-07-04 CLX84L - Jul 4, 15:55 UTCJul 4, 22:15 UTC6h 20m
2026-07-04 CLX5696 - Jul 4, 07:50 UTCJul 4, 14:25 UTC6h 35m
2026-07-03 CLX4695 CGO → KMQ Jul 3, 12:25 UTCJul 4, 04:45 UTC16h 20m
2026-07-02 CLX37 - Jul 2, 18:30 UTCJul 3, 07:40 UTC13h 10m
2026-07-02 CLX37 - Jul 2, 10:55 UTCJul 3, 07:40 UTC20h 45m
2026-07-02 CLX39 - Jul 2, 00:20 UTCJul 2, 18:40 UTC18h 20m
2026-07-01 CLX39 - Jul 1, 22:20 UTCJul 2, 18:40 UTC20h 20m
2026-07-01 CLX39 - Jul 1, 21:25 UTCJul 2, 18:40 UTC21h 15m
2026-06-30 CLX1G LUX → DWC Jun 30, 22:50 UTCJul 1, 13:25 UTC14h 35m
2026-06-30 CLX9022 - Jun 30, 15:50 UTCJun 30, 19:45 UTC3h 55m
2026-06-29 CLX9001 LUX → TPE Jun 29, 19:54 UTCJun 30, 12:45 UTC16h 51m
2026-06-29 CLX342 - Jun 29, 07:09 UTCJun 29, 15:00 UTC7h 50m
2026-06-28 CLX342 - Jun 28, 22:04 UTCJun 29, 05:30 UTC7h 25m
2026-06-28 CLX342 - Jun 28, 12:15 UTCJun 28, 20:34 UTC8h 20m
2026-06-28 CLX342 - Jun 28, 11:25 UTCJun 28, 11:39 UTC15m
2026-06-27 CLX4796 - Jun 27, 20:55 UTCJun 28, 07:54 UTC11h 0m
2026-06-27 CLX292 - Jun 27, 14:09 UTCJun 27, 18:20 UTC4h 10m
2026-06-27 CLX292 - Jun 27, 04:09 UTCJun 27, 04:29 UTC20m
2026-06-26 CLX7625 - Jun 26, 23:04 UTCJun 27, 00:29 UTC1h 25m
2026-06-26 CLX7625 - Jun 26, 09:14 UTCJun 26, 19:20 UTC10h 5m
2026-06-25 CLX56R - Jun 25, 18:34 UTCJun 26, 04:45 UTC10h 10m
2026-06-25 CLX5164 LAX → LUX Jun 25, 08:50 UTCJun 25, 15:29 UTC6h 40m
2026-06-24 CLX5163 - Jun 24, 22:25 UTCJun 25, 04:20 UTC5h 55m
2026-06-24 CLX245 HKG → ANC Jun 24, 11:14 UTCJun 24, 20:54 UTC9h 40m

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 LX-VCH page for operator, model, and routing details .

Mode-S 4D0111 frequently asked

What is Mode-S code 4D0111?
4D0111 is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-VCH.
Where is Mode-S 4D0111 registered?
Mode-S code 4D0111 is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D0111 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D0111, octal 23200421, decimal 5,046,545.
What flights does 4D0111 operate?
Mode-S 4D0111 has broadcast 20 distinct callsigns, including CLX251, CLX272, CLX7337, CLX342, CLX12V.