sensors Mode-S transponder

4D00D4

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-LGN · DE HAVILLAND DHC-8-400 Dash 8

Hex
4D00D4
Octal
23200324
Decimal
5,046,484
Country
LU
Tail
LX-LGN
Type
DH8D
Broadcasting now · callsign LGL691M · 2,075 ft
Flights observed
572
Distinct callsigns
20
Country
LU
Last broadcast
34m ago

Current position

4D00D4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D00D4 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
LGL4596 - 17 2026-07-13
LGL4595 - 17 2026-07-13
LGL3F - 14 2026-07-12
LGL35EK - 14 2026-07-13
LGL814P - 13 2026-07-12
LGL5436 - 13 2026-07-13
LGL9473 - 11 2026-07-10
LGL74BE - 11 2026-07-10
LGL4L - 11 2026-07-01
LGL452C - 11 2026-07-06
LGL12F - 11 2026-07-09
LGL5L - 10 2026-07-13
LGL4606 - 10 2026-07-13
LGL4597 Luxair 10 2026-07-01
LGL4541 - 10 2026-07-06
LGL94LC - 9 2026-07-13
LGL8G - 9 2026-07-09
LGL691M - 9 2026-07-15
LGL4593 - 9 2026-07-13
LGL5807 - 8 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 LGL691M - Jul 15, 04:35 UTCJul 15, 05:00 UTC25m
2026-07-14 LGL8W - Jul 14, 19:15 UTCJul 14, 20:55 UTC1h 40m
2026-07-14 LGL857W - Jul 14, 17:20 UTCJul 14, 18:35 UTC1h 15m
2026-07-13 LGL5436 CPH → LUX Jul 13, 19:05 UTCJul 13, 20:35 UTC1h 30m
2026-07-13 LGL35EK - Jul 13, 16:30 UTCJul 13, 17:55 UTC1h 25m
2026-07-13 LGL4596 - Jul 13, 14:40 UTCJul 13, 15:45 UTC1h 5m
2026-07-13 LGL4595 - Jul 13, 12:50 UTCJul 13, 13:55 UTC1h 5m
2026-07-13 LGL94LC - Jul 13, 11:00 UTCJul 13, 12:00 UTC1h 0m
2026-07-13 LGL4593 - Jul 13, 09:00 UTCJul 13, 10:05 UTC1h 5m
2026-07-13 LGL4606 - Jul 13, 07:05 UTCJul 13, 08:01 UTC55m
2026-07-13 LGL5L - Jul 13, 05:15 UTCJul 13, 06:20 UTC1h 5m
2026-07-12 LGL6496 LIN → LUX Jul 12, 19:50 UTCJul 12, 20:55 UTC1h 5m
2026-07-12 LGL6495 - Jul 12, 17:35 UTCJul 12, 18:40 UTC1h 5m
2026-07-12 LGL8854 VIE → LUX Jul 12, 15:10 UTCJul 12, 16:45 UTC1h 35m
2026-07-12 LGL853A - Jul 12, 12:40 UTCJul 12, 14:05 UTC1h 25m
2026-07-12 LGL814P - Jul 12, 11:20 UTCJul 12, 11:50 UTC30m
2026-07-12 LGL3F LUX → CDG Jul 12, 09:00 UTCJul 12, 09:45 UTC45m
2026-07-11 LGL416 DBV → LUX Jul 11, 18:15 UTCJul 11, 20:35 UTC2h 20m
2026-07-11 LGL415 - Jul 11, 15:05 UTCJul 11, 17:10 UTC2h 5m
2026-07-11 LGL6994 MXP → LUX Jul 11, 11:45 UTCJul 11, 12:55 UTC1h 10m
2026-07-11 LGL93BM - Jul 11, 09:30 UTCJul 11, 10:30 UTC1h 0m
2026-07-10 LGL74BE BER → LUX Jul 10, 19:20 UTCJul 10, 20:30 UTC1h 10m
2026-07-10 LGL9473 - Jul 10, 17:00 UTCJul 10, 18:05 UTC1h 5m
2026-07-10 LGL4596 LCY → LUX Jul 10, 14:40 UTCJul 10, 15:40 UTC1h 0m
2026-07-10 LGL4595 - Jul 10, 12:50 UTCJul 10, 13:55 UTC1h 5m
2026-07-10 LGL814P - Jul 10, 11:20 UTCJul 10, 11:55 UTC35m
2026-07-10 LGL3F - Jul 10, 09:00 UTCJul 10, 09:50 UTC50m
2026-07-10 LGL84PQ PRG → LUX Jul 10, 06:55 UTCJul 10, 08:10 UTC1h 15m
2026-07-10 LGL5KP LUX → PRG Jul 10, 04:50 UTCJul 10, 06:00 UTC1h 10m
2026-07-09 LGL52LU - Jul 9, 13:15 UTCJul 9, 15:10 UTC1h 55m
2026-07-09 LGL51JL - Jul 9, 10:50 UTCJul 9, 12:10 UTC1h 20m
2026-07-09 LGL12F - Jul 9, 07:55 UTCJul 9, 08:30 UTC35m
2026-07-09 LGL8G LUX → CDG Jul 9, 05:45 UTCJul 9, 06:35 UTC50m
2026-07-08 LGL5436 CPH → LUX Jul 8, 19:00 UTCJul 8, 20:20 UTC1h 20m
2026-07-08 LGL35EK - Jul 8, 16:30 UTCJul 8, 18:10 UTC1h 40m
2026-07-08 LGL4596 - Jul 8, 14:35 UTCJul 8, 15:35 UTC1h 0m
2026-07-08 LGL4595 LUX → LCY Jul 8, 12:40 UTCJul 8, 13:50 UTC1h 10m
2026-07-08 LGL814P - Jul 8, 11:05 UTCJul 8, 11:45 UTC40m
2026-07-08 LGL3F - Jul 8, 09:00 UTCJul 8, 09:35 UTC35m
2026-07-08 LGL62M MXP → LUX Jul 8, 06:45 UTCJul 8, 08:00 UTC1h 15m
2026-07-08 LGL691M - Jul 8, 04:30 UTCJul 8, 05:30 UTC1h 0m
2026-07-07 LGL4602 LCY → LUX Jul 7, 18:05 UTCJul 7, 19:00 UTC55m
2026-07-07 LGL4601 LUX → LCY Jul 7, 16:10 UTCJul 7, 17:15 UTC1h 5m
2026-07-07 LGL6494 LIN → LUX Jul 7, 14:15 UTCJul 7, 15:20 UTC1h 5m
2026-07-07 LGL6493 - Jul 7, 12:15 UTCJul 7, 13:15 UTC1h 0m
2026-07-06 LGL68M MXP → LUX Jul 6, 20:00 UTCJul 6, 21:05 UTC1h 5m
2026-07-06 LGL67M LUX → MXP Jul 6, 18:05 UTCJul 6, 19:05 UTC1h 0m
2026-07-06 LGL84PQ PRG → LUX Jul 6, 16:00 UTCJul 6, 17:10 UTC1h 10m
2026-07-06 LGL5KP - Jul 6, 14:10 UTCJul 6, 15:20 UTC1h 10m
2026-07-06 LGL452C MAN → LUX Jul 6, 11:50 UTCJul 6, 13:10 UTC1h 20m

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

Mode-S 4D00D4 frequently asked

What is Mode-S code 4D00D4?
4D00D4 is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-LGN.
Where is Mode-S 4D00D4 registered?
Mode-S code 4D00D4 is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D00D4 broadcasting right now?
Yes. Mode-S 4D00D4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D00D4, octal 23200324, decimal 5,046,484.
What flights does 4D00D4 operate?
Mode-S 4D00D4 has broadcast 20 distinct callsigns, including LGL4596, LGL4595, LGL3F, LGL35EK, LGL814P.