Apparatus

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sensors Mode-S transponder

4D010A

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-UCV · BOEING 747-400

Hex
4D010A
Octal
23200412
Decimal
5,046,538
Country
LU
Tail
LX-UCV
Type
B744
No current signal · last broadcast 1h ago
Flights observed
177
Distinct callsigns
20
Country
LU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4D010A.

Country allocation

The ICAO 24-bit address 4D010A 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
ICV9263 - 20 2026-07-09
ICV782 - 13 2026-07-09
ICV736 - 10 2026-06-30
ICV81L - 9 2026-07-14
CLX315 - 9 2026-07-05
ICV9266 - 8 2026-06-28
ICV9261 - 8 2026-06-29
ICV32 - 7 2026-07-10
ICV4093 - 6 2026-07-02
CLX499 - 6 2026-07-07
ICV79 Cargolux Italia 5 2026-07-08
ICV513 - 5 2026-06-28
ICV9275 - 4 2026-06-13
ICV762 - 4 2026-06-13
ICV66C - 4 2026-07-03
ICV5097 - 4 2026-07-13
ICV4096 - 4 2026-07-11
CLX9 - 4 2026-06-23
ICV87 Cargolux Italia 3 2026-07-01
ICV81 Cargolux Italia 3 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ICV81 MXP → LUX Jul 14, 12:25 UTCJul 14, 12:30 UTC5m
2026-07-14 ICV81L - Jul 14, 00:05 UTCJul 14, 10:05 UTC10h 0m
2026-07-13 ICV81L - Jul 13, 14:15 UTCJul 13, 20:40 UTC6h 25m
2026-07-13 ICV5097 - Jul 13, 04:00 UTCJul 13, 12:40 UTC8h 40m
2026-07-12 ICV5097 ICN → TPE Jul 12, 23:00 UTCJul 13, 01:01 UTC2h 0m
2026-07-11 ICV4096 - Jul 11, 08:55 UTCJul 11, 11:05 UTC2h 10m
2026-07-11 ICV16 LUX → MXP Jul 11, 04:55 UTCJul 11, 05:50 UTC55m
2026-07-10 ICV32 MXP → LUX Jul 10, 06:15 UTCJul 10, 07:05 UTC50m
2026-07-09 ICV782 - Jul 9, 22:45 UTCJul 10, 03:00 UTC4h 15m
2026-07-09 ICV782 - Jul 9, 12:15 UTCJul 9, 12:30 UTC15m
2026-07-09 ICV9263 - Jul 9, 05:20 UTCJul 9, 09:05 UTC3h 45m
2026-07-08 ICV9263 MXP → NRT Jul 8, 15:00 UTCJul 9, 03:00 UTC12h 0m
2026-07-08 ICV79 LUX → MXP Jul 8, 10:40 UTCJul 8, 11:25 UTC45m
2026-07-08 CLX91Z JFK → LUX Jul 8, 01:20 UTCJul 8, 08:10 UTC6h 50m
2026-07-07 CLX68W - Jul 7, 14:55 UTCJul 7, 22:20 UTC7h 25m
2026-07-07 CLX499 AMS → LUX Jul 7, 10:10 UTCJul 7, 10:45 UTC35m
2026-07-07 CLX499 - Jul 7, 03:30 UTCJul 7, 08:00 UTC4h 30m
2026-07-06 CLX499 - Jul 6, 17:25 UTCJul 6, 17:50 UTC25m
2026-07-06 CLX498 - Jul 6, 04:30 UTCJul 6, 14:30 UTC10h 0m
2026-07-05 CLX315 AMS → LUX Jul 5, 12:10 UTCJul 5, 12:45 UTC35m
2026-07-05 CLX315 - Jul 5, 06:05 UTCJul 5, 09:30 UTC3h 25m
2026-07-04 CLX315 - Jul 4, 18:35 UTCJul 4, 19:00 UTC25m
2026-07-04 CLX314 - Jul 4, 06:15 UTCJul 4, 16:15 UTC10h 0m
2026-07-03 ICV66 LUX → MXP Jul 3, 19:00 UTCJul 3, 19:55 UTC55m
2026-07-03 ICV66C DFW → MXP Jul 3, 07:40 UTCJul 3, 17:00 UTC9h 20m
2026-07-02 ICV66C ANC → DFW Jul 2, 21:35 UTCJul 3, 03:15 UTC5h 40m
2026-07-02 ICV5094 TPE → ANC Jul 2, 11:50 UTCJul 2, 20:10 UTC8h 20m
2026-07-02 ICV4093 - Jul 2, 07:20 UTCJul 2, 09:40 UTC2h 20m
2026-07-02 ICV4093 - Jul 2, 04:05 UTCJul 2, 04:35 UTC30m
2026-07-01 ICV4093 - Jul 1, 17:40 UTCJul 1, 21:15 UTC3h 35m
2026-07-01 ICV83 LUX → MXP Jul 1, 13:00 UTCJul 1, 13:55 UTC55m
2026-07-01 ICV87 MXP → LUX Jul 1, 05:00 UTCJul 1, 05:55 UTC55m
2026-06-30 ICV736 - Jun 30, 20:15 UTCJun 30, 21:35 UTC1h 20m
2026-06-30 ICV736 - Jun 30, 10:35 UTCJun 30, 10:50 UTC15m
2026-06-29 ICV9261 - Jun 29, 21:05 UTCJun 30, 07:50 UTC10h 46m
2026-06-29 ICV13 LUX → MXP Jun 29, 13:34 UTCJun 29, 14:34 UTC1h 0m
2026-06-29 ICV21 MXP → LUX Jun 29, 05:40 UTCJun 29, 06:29 UTC50m
2026-06-28 ICV513 - Jun 28, 21:50 UTCJun 29, 01:50 UTC4h 0m
2026-06-28 ICV513 - Jun 28, 12:05 UTCJun 28, 12:25 UTC20m
2026-06-28 ICV9266 - Jun 28, 08:55 UTCJun 28, 09:25 UTC30m
2026-06-28 ICV9266 - Jun 28, 05:09 UTCJun 28, 08:19 UTC3h 10m
2026-06-27 ICV9266 MXP → NRT Jun 27, 14:29 UTCJun 28, 02:39 UTC12h 10m
2026-06-27 ICV68 LUX → MXP Jun 27, 10:40 UTCJun 27, 11:35 UTC55m
2026-06-26 ICV32 - Jun 26, 10:35 UTCJun 26, 11:24 UTC50m
2026-06-25 ICV782 - Jun 25, 22:39 UTCJun 25, 23:55 UTC1h 15m
2026-06-25 ICV782 - Jun 25, 12:25 UTCJun 25, 12:40 UTC15m
2026-06-25 ICV9263 - Jun 25, 09:25 UTCJun 25, 09:45 UTC20m
2026-06-25 ICV9263 - Jun 25, 05:50 UTCJun 25, 08:55 UTC3h 5m
2026-06-24 ICV9263 MXP → NRT Jun 24, 15:14 UTCJun 25, 03:29 UTC12h 15m
2026-06-24 ICV79 LUX → MXP Jun 24, 10:19 UTCJun 24, 11:09 UTC50m

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

Mode-S 4D010A frequently asked

What is Mode-S code 4D010A?
4D010A is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-UCV.
Where is Mode-S 4D010A registered?
Mode-S code 4D010A is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D010A broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D010A, octal 23200412, decimal 5,046,538.
What flights does 4D010A operate?
Mode-S 4D010A has broadcast 20 distinct callsigns, including ICV9263, ICV782, ICV736, ICV81L, CLX315.