Apparatus

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sensors Mode-S transponder

4D0119

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-JCV · BOEING 747-400

Hex
4D0119
Octal
23200431
Decimal
5,046,553
Country
LU
Tail
LX-JCV
Type
B744
Broadcasting now · callsign CLX6225 · 36,000 ft
Flights observed
100
Distinct callsigns
20
Country
LU
Last broadcast
4h ago

Current position

4D0119 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D0119 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
CLX91W Cargolux 9 2026-04-21
CLX79 - 7 2026-05-09
CLX708 - 6 2026-05-04
CLX515 - 6 2026-05-27
CLX4951 - 6 2026-04-20
CLX97C Cargolux 4 2026-05-07
CLX9725 Cargolux 4 2026-05-08
CLX7855 Cargolux 4 2026-05-02
CLX7 - 4 2026-05-07
CLX67 Cargolux 4 2026-05-18
CLX5952 Cargolux 4 2026-04-21
CLX56 - 4 2026-05-13
CLX5 - 4 2026-05-28
CLX2 - 4 2026-05-21
CLX7603 - 3 2026-04-15
CLX65 - 3 2026-04-16
CLX9932 Cargolux 2 2026-05-26
CLX93D Cargolux 2 2026-04-19
CLX9 - 2 2026-05-05
CLX74T Cargolux 2 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 CLX6225 VCP → CWB May 29, 21:30 UTCMay 30, 01:10 UTC3h 40m
2026-05-29 CLX96Z IAH → LUX May 29, 04:30 UTCMay 29, 13:25 UTC8h 55m
2026-05-28 CLX5 - May 28, 23:40 UTCMay 29, 01:35 UTC1h 55m
2026-05-28 CLX5 - May 28, 12:55 UTCMay 28, 21:00 UTC8h 5m
2026-05-27 CLX515 BUD → LUX May 27, 18:50 UTCMay 27, 20:20 UTC1h 30m
2026-05-27 CLX515 - May 27, 12:30 UTCMay 27, 15:40 UTC3h 10m
2026-05-27 CLX515 - May 27, 03:04 UTCMay 27, 03:20 UTC15m
2026-05-26 CLX9932 DWC → LUX May 26, 13:29 UTCMay 27, 00:59 UTC11h 30m
2026-05-25 CLX7551 - May 25, 03:10 UTCMay 25, 18:25 UTC15h 15m
2026-05-24 CLX873 - May 24, 12:00 UTCMay 24, 23:46 UTC11h 46m
2026-05-24 CLX57 - May 24, 03:40 UTCMay 24, 07:50 UTC4h 10m
2026-05-22 CLX58 - May 22, 21:00 UTCMay 23, 01:10 UTC4h 10m
2026-05-21 CLX74T IND → LUX May 21, 21:15 UTCMay 22, 04:25 UTC7h 10m
2026-05-21 CLX2 - May 21, 17:05 UTCMay 21, 17:40 UTC35m
2026-05-21 CLX2 - May 21, 05:25 UTCMay 21, 14:00 UTC8h 35m
2026-05-20 CLX49 - May 20, 14:35 UTCMay 20, 18:50 UTC4h 15m
2026-05-19 CLX7602 LUX → CWB May 19, 07:30 UTCMay 19, 11:30 UTC4h 0m
2026-05-18 CLX67 LAX → MXP May 18, 16:55 UTCMay 18, 17:50 UTC55m
2026-05-18 CLX67 LAX → MXP May 18, 04:30 UTCMay 18, 15:00 UTC10h 30m
2026-05-17 CLX5 - May 17, 14:20 UTCMay 18, 01:20 UTC11h 0m
2026-05-17 CLX57 - May 17, 03:20 UTCMay 17, 07:35 UTC4h 15m
2026-05-15 CLX58 - May 15, 20:20 UTCMay 16, 00:15 UTC3h 55m
2026-05-14 CLX74T IND → LUX May 14, 12:00 UTCMay 14, 19:35 UTC7h 35m
2026-05-14 CLX2 ORD → IND May 14, 07:45 UTCMay 14, 08:15 UTC30m
2026-05-13 CLX2 - May 13, 14:05 UTCMay 13, 22:35 UTC8h 30m
2026-05-13 CLX56 - May 13, 10:20 UTCMay 13, 11:05 UTC45m
2026-05-13 CLX56 - May 13, 03:25 UTCMay 13, 08:30 UTC5h 5m
2026-05-12 CLX56 - May 12, 08:25 UTCMay 13, 08:15 UTC23h 50m
2026-05-12 CLX56 - May 12, 06:20 UTCMay 13, 04:35 UTC22h 15m
2026-05-12 CLX9722 LUX → CGO May 12, 04:25 UTCMay 13, 04:15 UTC23h 50m
2026-05-11 CLX67 LAX → MXP May 11, 18:40 UTCMay 11, 19:40 UTC1h 0m
2026-05-11 CLX67 LAX → MXP May 11, 05:40 UTCMay 11, 16:45 UTC11h 5m
2026-05-10 CLX5 - May 10, 14:54 UTCMay 11, 01:50 UTC10h 55m
2026-05-10 CLX98V DFW → LUX May 10, 02:45 UTCMay 10, 11:45 UTC9h 0m
2026-05-09 CLX78Y LUX → ORD May 9, 12:40 UTCMay 9, 22:49 UTC10h 10m
2026-05-09 CLX79 - May 9, 03:20 UTCMay 9, 04:40 UTC1h 20m
2026-05-08 CLX79 - May 8, 08:19 UTCMay 9, 04:40 UTC20h 20m
2026-05-08 CLX79 - May 8, 06:20 UTCMay 9, 04:40 UTC22h 20m
2026-05-08 CLX9725 LUX → CGO May 8, 04:25 UTCMay 9, 04:15 UTC23h 50m
2026-05-07 CLX97C IAH → PIK May 7, 14:05 UTCMay 7, 15:30 UTC1h 25m
2026-05-07 CLX97C IAH → PIK May 7, 05:05 UTCMay 7, 12:35 UTC7h 30m
2026-05-07 CLX7 - May 7, 01:55 UTCMay 7, 02:40 UTC45m
2026-05-06 CLX7 - May 6, 13:05 UTCMay 6, 23:55 UTC10h 49m
2026-05-05 CLX11Z IND → LUX May 5, 10:20 UTCMay 5, 18:00 UTC7h 40m
2026-05-05 CLX9 JFK → IND May 5, 05:20 UTCMay 5, 07:00 UTC1h 40m
2026-05-04 CLX9 - May 4, 19:15 UTCMay 5, 02:45 UTC7h 30m
2026-05-04 CLX708 BUD → LUX May 4, 02:39 UTCMay 4, 04:09 UTC1h 30m
2026-05-03 CLX708 - May 3, 21:10 UTCMay 4, 00:05 UTC2h 55m
2026-05-03 CLX708 - May 3, 07:45 UTCMay 3, 08:00 UTC15m
2026-05-02 CLX7855 SGN → HKG May 2, 20:40 UTCMay 2, 20:55 UTC15m

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

Mode-S 4D0119 frequently asked

What is Mode-S code 4D0119?
4D0119 is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-JCV.
Where is Mode-S 4D0119 registered?
Mode-S code 4D0119 is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D0119 broadcasting right now?
Yes. Mode-S 4D0119 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D0119, octal 23200431, decimal 5,046,553.
What flights does 4D0119 operate?
Mode-S 4D0119 has broadcast 20 distinct callsigns, including CLX91W, CLX79, CLX708, CLX515, CLX4951.