Apparatus

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sensors Mode-S transponder

4D010B

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-VCV · BOEING 747-400

Hex
4D010B
Octal
23200413
Decimal
5,046,539
Country
LU
Tail
LX-VCV
Type
B744
No current signal · last broadcast 4h ago
Flights observed
236
Distinct callsigns
20
Country
LU
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4D010B.

Country allocation

The ICAO 24-bit address 4D010B 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
ICV9275 - 20 2026-07-04
ICV7117 - 12 2026-07-05
ICV7112 - 12 2026-07-08
ICV4096 - 12 2026-06-28
ICV29 - 12 2026-07-09
ICV9261 - 10 2026-07-14
ICV762 - 10 2026-07-04
ICV736 - 9 2026-07-14
ICV513 - 9 2026-07-12
ICV9266 - 8 2026-07-12
ICV81L - 8 2026-06-29
ICV42U - 8 2026-07-06
ICV28E - 8 2026-07-08
ICV5097 - 7 2026-06-28
ICV4093 - 7 2026-06-25
CLX492 - 7 2026-07-02
ICV9263 Cargolux Italia 6 2026-06-11
ICV66C - 6 2026-06-26
ICV37 - 5 2026-07-03
ICV31 - 5 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ICV736 - Jul 14, 10:25 UTCJul 14, 10:40 UTC15m
2026-07-14 ICV9261 - Jul 14, 07:40 UTCJul 14, 08:15 UTC35m
2026-07-13 ICV9261 - Jul 13, 21:05 UTCJul 14, 00:35 UTC3h 30m
2026-07-13 ICV13 LUX → MXP Jul 13, 13:40 UTCJul 13, 14:30 UTC50m
2026-07-13 ICV21 MXP → LUX Jul 13, 05:20 UTCJul 13, 06:15 UTC55m
2026-07-12 ICV513 - Jul 12, 21:30 UTCJul 13, 01:40 UTC4h 10m
2026-07-12 ICV513 - Jul 12, 11:35 UTCJul 12, 11:50 UTC15m
2026-07-12 ICV9266 - Jul 12, 05:40 UTCJul 12, 09:25 UTC3h 45m
2026-07-11 ICV9266 MXP → NRT Jul 11, 15:15 UTCJul 12, 03:30 UTC12h 15m
2026-07-11 ICV68 - Jul 11, 10:15 UTCJul 11, 11:05 UTC50m
2026-07-09 ICV29 MXP → LUX Jul 9, 04:25 UTCJul 9, 05:15 UTC50m
2026-07-08 ICV28E - Jul 8, 05:45 UTCJul 8, 20:10 UTC14h 25m
2026-07-08 ICV7112 - Jul 8, 02:20 UTCJul 8, 02:40 UTC20m
2026-07-07 ICV7112 - Jul 7, 16:10 UTCJul 8, 01:40 UTC9h 30m
2026-07-07 ICV29 - Jul 7, 11:00 UTCJul 7, 11:55 UTC55m
2026-07-07 ICV31 MXP → LUX Jul 7, 05:30 UTCJul 7, 06:30 UTC1h 0m
2026-07-06 ICV42U - Jul 6, 20:00 UTCJul 7, 00:15 UTC4h 15m
2026-07-05 ICV42U MXP → LUX Jul 5, 20:50 UTCJul 6, 20:45 UTC23h 55m
2026-07-05 ICV7117 - Jul 5, 20:40 UTCJul 5, 21:05 UTC25m
2026-07-05 ICV7117 - Jul 5, 17:30 UTCJul 5, 17:50 UTC20m
2026-07-05 ICV7117 - Jul 5, 07:15 UTCJul 5, 16:40 UTC9h 25m
2026-07-04 ICV762 - Jul 4, 21:10 UTCJul 4, 22:20 UTC1h 10m
2026-07-04 ICV762 - Jul 4, 11:05 UTCJul 4, 11:20 UTC15m
2026-07-04 ICV9275 - Jul 4, 07:25 UTCJul 4, 08:10 UTC45m
2026-07-04 ICV9275 - Jul 4, 03:50 UTCJul 4, 06:50 UTC3h 0m
2026-07-03 ICV9275 MXP → NRT Jul 3, 12:40 UTCJul 4, 00:40 UTC12h 0m
2026-07-03 ICV37 - Jul 3, 08:20 UTCJul 3, 09:10 UTC50m
2026-07-02 CLX492 AMS → LUX Jul 2, 14:10 UTCJul 2, 14:50 UTC40m
2026-07-02 CLX492 - Jul 2, 04:35 UTCJul 2, 09:00 UTC4h 25m
2026-07-02 CLX492 - Jul 2, 00:45 UTCJul 2, 00:55 UTC10m
2026-07-01 CLX492 - Jul 1, 17:20 UTCJul 1, 17:45 UTC25m
2026-07-01 CLX491 - Jul 1, 04:20 UTCJul 1, 14:25 UTC10h 5m
2026-06-30 CLX11Z IND → LUX Jun 30, 13:30 UTCJun 30, 20:55 UTC7h 25m
2026-06-30 CLX9 JFK → IND Jun 30, 06:25 UTCJun 30, 07:55 UTC1h 30m
2026-06-29 CLX9 - Jun 29, 19:49 UTCJun 30, 03:10 UTC7h 21m
2026-06-29 ICV81 MXP → LUX Jun 29, 12:49 UTCJun 29, 13:49 UTC1h 0m
2026-06-29 ICV81L - Jun 29, 00:34 UTCJun 29, 09:54 UTC9h 20m
2026-06-28 ICV81L - Jun 28, 14:50 UTCJun 28, 20:54 UTC6h 5m
2026-06-28 ICV5097 - Jun 28, 06:05 UTCJun 28, 12:55 UTC6h 50m
2026-06-28 ICV5097 - Jun 28, 04:29 UTCJun 28, 04:50 UTC20m
2026-06-28 ICV4096 - Jun 28, 01:25 UTCJun 28, 01:44 UTC20m
2026-06-27 ICV4096 - Jun 27, 23:45 UTCJun 28, 00:20 UTC35m
2026-06-27 ICV4096 - Jun 27, 19:39 UTCJun 27, 19:59 UTC20m
2026-06-27 ICV4096 - Jun 27, 09:24 UTCJun 27, 18:54 UTC9h 30m
2026-06-27 ICV16 - Jun 27, 05:55 UTCJun 27, 06:44 UTC50m
2026-06-26 ICV66 LUX → MXP Jun 26, 18:44 UTCJun 26, 19:39 UTC55m
2026-06-26 ICV66C DFW → MXP Jun 26, 06:00 UTCJun 26, 15:10 UTC9h 10m
2026-06-25 ICV66C ANC → DFW Jun 25, 20:30 UTCJun 26, 02:09 UTC5h 40m
2026-06-25 ICV5094 TPE → ANC Jun 25, 10:09 UTCJun 25, 18:55 UTC8h 45m
2026-06-25 ICV4093 ICN → TPE Jun 25, 05:55 UTCJun 25, 07:59 UTC2h 5m

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

Mode-S 4D010B frequently asked

What is Mode-S code 4D010B?
4D010B is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-VCV.
Where is Mode-S 4D010B registered?
Mode-S code 4D010B is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D010B broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D010B, octal 23200413, decimal 5,046,539.
What flights does 4D010B operate?
Mode-S 4D010B has broadcast 20 distinct callsigns, including ICV9275, ICV7117, ICV7112, ICV4096, ICV29.