Apparatus

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sensors Mode-S transponder

4D010C

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-WCV · BOEING 747-400

Hex
4D010C
Octal
23200414
Decimal
5,046,540
Country
LU
Tail
LX-WCV
Type
B744
Transponder active on ground
Flights observed
237
Distinct callsigns
20
Country
LU
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4D010C.

Country allocation

The ICAO 24-bit address 4D010C 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
CLX5 - 16 2026-07-02
ICV4096 - 15 2026-05-23
CLX492 - 14 2026-07-09
CLX499 - 12 2026-06-23
ICV7117 - 11 2026-07-12
ICV7112 - 11 2026-07-01
ICV81L Cargolux Italia 10 2026-05-24
ICV29 - 10 2026-07-02
CLX96Z - 10 2026-07-03
ICV9275 - 9 2026-07-11
ICV9266 - 8 2026-07-05
ICV9263 Cargolux Italia 8 2026-06-04
ICV5097 Cargolux Italia 8 2026-05-24
ICV762 - 7 2026-07-11
ICV42U - 7 2026-07-12
ICV782 - 6 2026-06-04
ICV513 - 6 2026-07-06
ICV16 Cargolux Italia 6 2026-05-23
CLX9 - 6 2026-07-07
ICV81 Cargolux Italia 5 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CLX59C LUX → JFK Jul 14, 05:05 UTCJul 14, 12:20 UTC7h 15m
2026-07-13 ICV31 MXP → LUX Jul 13, 19:05 UTCJul 13, 20:00 UTC55m
2026-07-12 ICV42U - Jul 12, 22:25 UTCJul 13, 12:25 UTC14h 0m
2026-07-12 ICV7117 - Jul 12, 19:20 UTCJul 12, 19:50 UTC30m
2026-07-12 ICV7117 - Jul 12, 09:15 UTCJul 12, 18:40 UTC9h 25m
2026-07-11 ICV762 - Jul 11, 19:30 UTCJul 11, 23:45 UTC4h 15m
2026-07-11 ICV762 - Jul 11, 10:05 UTCJul 11, 10:25 UTC20m
2026-07-11 ICV9275 - Jul 11, 07:15 UTCJul 11, 07:50 UTC35m
2026-07-11 ICV9275 - Jul 11, 03:40 UTCJul 11, 05:10 UTC1h 30m
2026-07-10 ICV9275 MXP → NRT Jul 10, 13:20 UTCJul 11, 01:20 UTC12h 0m
2026-07-10 ICV37 - Jul 10, 08:45 UTCJul 10, 09:35 UTC50m
2026-07-09 CLX492 AMS → LUX Jul 9, 15:15 UTCJul 9, 15:50 UTC35m
2026-07-09 CLX492 - Jul 9, 08:45 UTCJul 9, 13:20 UTC4h 35m
2026-07-08 CLX492 - Jul 8, 18:00 UTCJul 8, 18:30 UTC30m
2026-07-08 CLX491 - Jul 8, 05:30 UTCJul 8, 15:10 UTC9h 40m
2026-07-07 CLX11Z IND → LUX Jul 7, 10:45 UTCJul 7, 18:35 UTC7h 50m
2026-07-07 CLX9 JFK → IND Jul 7, 06:40 UTCJul 7, 08:15 UTC1h 35m
2026-07-06 CLX9 - Jul 6, 20:15 UTCJul 7, 03:50 UTC7h 35m
2026-07-06 ICV21 MXP → LUX Jul 6, 16:25 UTCJul 6, 17:20 UTC55m
2026-07-06 ICV513 - Jul 6, 09:05 UTCJul 6, 13:10 UTC4h 5m
2026-07-05 ICV513 - Jul 5, 23:10 UTCJul 5, 23:30 UTC20m
2026-07-05 ICV9266 - Jul 5, 13:10 UTCJul 5, 13:25 UTC15m
2026-07-05 ICV9266 - Jul 5, 09:30 UTCJul 5, 12:35 UTC3h 5m
2026-07-04 ICV9266 MXP → NRT Jul 4, 19:00 UTCJul 5, 07:10 UTC12h 10m
2026-07-04 ICV68 LUX → MXP Jul 4, 15:55 UTCJul 4, 16:45 UTC50m
2026-07-03 CLX96Z - Jul 3, 04:25 UTCJul 3, 13:20 UTC8h 55m
2026-07-02 CLX5 - Jul 2, 22:50 UTCJul 3, 01:00 UTC2h 10m
2026-07-02 CLX5 - Jul 2, 11:55 UTCJul 2, 20:35 UTC8h 40m
2026-07-02 ICV29 - Jul 2, 04:20 UTCJul 2, 05:15 UTC55m
2026-07-01 ICV28E ICN → MXP Jul 1, 05:10 UTCJul 1, 22:20 UTC17h 10m
2026-07-01 ICV7112 - Jul 1, 01:30 UTCJul 1, 01:50 UTC20m
2026-06-30 ICV7112 - Jun 30, 15:00 UTCJul 1, 00:40 UTC9h 40m
2026-06-30 ICV29 LUX → MXP Jun 30, 10:40 UTCJun 30, 11:35 UTC55m
2026-06-29 ICV31 MXP → LUX Jun 29, 18:44 UTCJun 29, 19:35 UTC50m
2026-06-28 ICV42U MXP → LUX Jun 28, 20:50 UTCJun 29, 14:34 UTC17h 45m
2026-06-28 ICV7117 MXP → ICN Jun 28, 07:20 UTCJun 28, 18:05 UTC10h 45m
2026-06-27 ICV762 - Jun 27, 20:24 UTCJun 28, 00:20 UTC3h 55m
2026-06-27 ICV762 - Jun 27, 10:05 UTCJun 27, 10:19 UTC15m
2026-06-27 ICV9275 - Jun 27, 07:30 UTCJun 27, 07:45 UTC15m
2026-06-27 ICV9275 - Jun 27, 03:40 UTCJun 27, 06:54 UTC3h 15m
2026-06-26 ICV9275 - Jun 26, 12:50 UTCJun 27, 01:04 UTC12h 15m
2026-06-26 ICV37 - Jun 26, 08:24 UTCJun 26, 09:24 UTC1h 0m
2026-06-25 CLX492 AMS → LUX Jun 25, 15:40 UTCJun 25, 16:20 UTC40m
2026-06-25 CLX492 - Jun 25, 08:55 UTCJun 25, 13:09 UTC4h 15m
2026-06-24 CLX492 - Jun 24, 22:49 UTCJun 24, 23:14 UTC25m
2026-06-24 CLX491 LUX → JNB Jun 24, 09:55 UTCJun 24, 19:55 UTC10h 0m
2026-06-23 CLX499 AMS → LUX Jun 23, 15:04 UTCJun 23, 15:40 UTC35m
2026-06-23 CLX499 - Jun 23, 05:59 UTCJun 23, 10:24 UTC4h 25m
2026-06-22 CLX499 - Jun 22, 19:54 UTCJun 22, 20:19 UTC25m
2026-06-22 CLX498 - Jun 22, 06:15 UTCJun 22, 16:29 UTC10h 15m

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

Mode-S 4D010C frequently asked

What is Mode-S code 4D010C?
4D010C is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-WCV.
Where is Mode-S 4D010C registered?
Mode-S code 4D010C is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D010C broadcasting right now?
Mode-S 4D010C is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D010C, octal 23200414, decimal 5,046,540.
What flights does 4D010C operate?
Mode-S 4D010C has broadcast 20 distinct callsigns, including CLX5, ICV4096, CLX492, CLX499, ICV7117.