Apparatus

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sensors Mode-S transponder

4D010D

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-YCV · BOEING 747-400

Hex
4D010D
Octal
23200415
Decimal
5,046,541
Country
LU
Tail
LX-YCV
Type
B744
No current signal · last broadcast Jul 26, 20:25 UTC
Flights observed
271
Distinct callsigns
20
Country
LU
Last broadcast
Jul 26, 20:25 UTC

Last known position

Most recent position reported by Mode-S 4D010D.

Country allocation

The ICAO 24-bit address 4D010D 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
CLX499 - 24 2026-07-21
ICV4093 - 23 2026-07-09
ICV66C - 20 2026-07-10
CLX315 - 19 2026-07-19
ICV5094 - 15 2026-07-09
ICV9266 Cargolux Italia 11 2026-06-07
CLX498 - 9 2026-07-20
CLX492 - 9 2026-06-18
ICV736 - 8 2026-07-07
ICV513 - 8 2026-06-07
ICV4096 - 8 2026-07-25
ICV83 Cargolux Italia 7 2026-07-08
ICV7112 - 7 2026-07-21
ICV9261 - 6 2026-07-07
ICV782 - 6 2026-07-16
ICV66 Cargolux Italia 6 2026-07-10
ICV29 Cargolux Italia 6 2026-07-23
CLX314 - 6 2026-07-18
ICV9263 - 5 2026-07-16
ICV81L Cargolux Italia 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ICV81L IAH → MXP Jul 26, 14:10 UTCJul 26, 20:25 UTC6h 15m
2026-07-26 ICV5097 TPE → ANC Jul 26, 05:45 UTCJul 26, 12:40 UTC6h 56m
2026-07-26 ICV5097 TPE → ANC Jul 26, 03:55 UTCJul 26, 04:10 UTC15m
2026-07-25 ICV4096 - Jul 25, 23:40 UTCJul 26, 01:35 UTC1h 55m
2026-07-25 ICV4096 - Jul 25, 19:55 UTCJul 25, 20:20 UTC25m
2026-07-25 ICV4096 - Jul 25, 09:40 UTCJul 25, 19:10 UTC9h 30m
2026-07-25 ICV16 LUX → MXP Jul 25, 06:00 UTCJul 25, 06:50 UTC50m
2026-07-24 CLX96Z IAH → LUX Jul 24, 04:50 UTCJul 24, 13:50 UTC9h 0m
2026-07-23 CLX5 - Jul 23, 23:00 UTCJul 24, 01:15 UTC2h 15m
2026-07-23 CLX5 LUX → IND Jul 23, 12:45 UTCJul 23, 21:10 UTC8h 25m
2026-07-23 ICV29 LUX → MXP Jul 23, 08:45 UTCJul 23, 09:40 UTC55m
2026-07-23 ICV28E GYD → MXP Jul 23, 01:45 UTCJul 23, 06:05 UTC4h 20m
2026-07-22 ICV28E GYD → MXP Jul 22, 11:10 UTCJul 23, 06:05 UTC18h 55m
2026-07-21 ICV7112 - Jul 21, 20:00 UTCJul 21, 23:20 UTC3h 20m
2026-07-21 ICV29 LUX → MXP Jul 21, 15:15 UTCJul 21, 16:05 UTC50m
2026-07-21 CLX499 AMS → LUX Jul 21, 10:25 UTCJul 21, 11:00 UTC35m
2026-07-21 CLX499 - Jul 21, 03:35 UTCJul 21, 08:00 UTC4h 25m
2026-07-20 CLX499 - Jul 20, 17:30 UTCJul 20, 17:50 UTC20m
2026-07-20 CLX498 - Jul 20, 04:25 UTCJul 20, 14:50 UTC10h 25m
2026-07-19 CLX315 AMS → LUX Jul 19, 12:20 UTCJul 19, 12:50 UTC30m
2026-07-19 CLX315 - Jul 19, 05:10 UTCJul 19, 08:35 UTC3h 25m
2026-07-18 CLX315 - Jul 18, 17:40 UTCJul 18, 18:05 UTC25m
2026-07-18 CLX314 - Jul 18, 04:30 UTCJul 18, 14:25 UTC9h 55m
2026-07-17 ICV32 MXP → LUX Jul 17, 06:25 UTCJul 17, 07:20 UTC55m
2026-07-16 ICV782 - Jul 16, 22:40 UTCJul 17, 02:54 UTC4h 15m
2026-07-16 ICV782 - Jul 16, 12:14 UTCJul 16, 12:30 UTC15m
2026-07-16 ICV9263 - Jul 16, 05:05 UTCJul 16, 08:55 UTC3h 50m
2026-07-15 ICV9263 MXP → NRT Jul 15, 14:35 UTCJul 16, 02:35 UTC12h 0m
2026-07-15 ICV79 LUX → MXP Jul 15, 10:55 UTCJul 15, 11:50 UTC55m
2026-07-14 CLX499 - Jul 14, 14:10 UTCJul 14, 14:50 UTC40m
2026-07-14 CLX499 - Jul 14, 08:25 UTCJul 14, 11:50 UTC3h 25m
2026-07-13 CLX499 - Jul 13, 20:30 UTCJul 13, 20:55 UTC25m
2026-07-13 CLX498 LUX → JNB Jul 13, 06:05 UTCJul 13, 16:05 UTC10h 0m
2026-07-12 CLX315 AMS → LUX Jul 12, 10:10 UTCJul 12, 10:50 UTC40m
2026-07-12 CLX315 - Jul 12, 04:25 UTCJul 12, 08:35 UTC4h 10m
2026-07-11 CLX315 - Jul 11, 18:10 UTCJul 11, 18:35 UTC25m
2026-07-11 CLX314 - Jul 11, 04:40 UTCJul 11, 14:40 UTC10h 0m
2026-07-10 ICV66 LUX → MXP Jul 10, 20:25 UTCJul 10, 21:20 UTC55m
2026-07-10 ICV66C DFW → MXP Jul 10, 08:25 UTCJul 10, 18:15 UTC9h 50m
2026-07-09 ICV66C ANC → DFW Jul 9, 23:25 UTCJul 10, 05:00 UTC5h 35m
2026-07-09 ICV5094 - Jul 9, 14:40 UTCJul 9, 22:00 UTC7h 20m
2026-07-09 ICV5094 - Jul 9, 13:15 UTCJul 9, 13:25 UTC10m
2026-07-09 ICV4093 ICN → TPE Jul 9, 08:40 UTCJul 9, 10:45 UTC2h 5m
2026-07-08 ICV4093 MXP → ICN Jul 8, 19:20 UTCJul 9, 05:45 UTC10h 25m
2026-07-08 ICV83 LUX → MXP Jul 8, 13:40 UTCJul 8, 14:25 UTC45m
2026-07-08 ICV87 MXP → LUX Jul 8, 07:10 UTCJul 8, 08:10 UTC1h 0m
2026-07-07 ICV736 - Jul 7, 23:50 UTCJul 8, 03:55 UTC4h 5m
2026-07-07 ICV736 - Jul 7, 13:55 UTCJul 7, 14:10 UTC15m
2026-07-07 ICV9261 - Jul 7, 10:50 UTCJul 7, 11:30 UTC40m
2026-07-07 ICV9261 - Jul 7, 00:25 UTCJul 7, 03:55 UTC3h 30m

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-YCV page for operator, model, and routing details .

Mode-S 4D010D frequently asked

What is Mode-S code 4D010D?
4D010D is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-YCV.
Where is Mode-S 4D010D registered?
Mode-S code 4D010D is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D010D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D010D, octal 23200415, decimal 5,046,541.
What flights does 4D010D operate?
Mode-S 4D010D has broadcast 20 distinct callsigns, including CLX499, ICV4093, ICV66C, CLX315, ICV5094.