Apparatus

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sensors Mode-S transponder

4D00F3

ICAO 24-bit transponder address · allocated to Luxembourg

Currently assigned to LX-LBB · BOEING 737-800

Hex
4D00F3
Octal
23200363
Decimal
5,046,515
Country
LU
Tail
LX-LBB
Type
B738
No current signal · last broadcast 5h ago
Flights observed
370
Distinct callsigns
20
Country
LU
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4D00F3.

Country allocation

The ICAO 24-bit address 4D00F3 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
LGL204 - 12 2026-07-12
LGL3770 - 11 2026-07-08
LGL3769 - 11 2026-07-08
LGL203 - 10 2026-07-12
LGL38MA - 9 2026-05-12
LGL2G Luxair 9 2026-06-19
LGL1E - 9 2026-06-19
LGL6EP - 8 2026-06-30
LGL32PR - 8 2026-07-13
LGL714 - 7 2026-07-08
LGL713 - 7 2026-07-08
LGL51P - 7 2026-07-13
LGL31PT - 7 2026-07-13
LGL712 - 6 2026-07-06
LGL703 - 6 2026-07-05
LGL6MR - 6 2026-06-30
LGL3752 - 6 2026-07-13
LGL82JR - 5 2026-07-04
LGL8246 - 5 2026-07-12
LGL8245 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 LGL32PR OPO → LUX Jul 13, 19:05 UTCJul 13, 21:00 UTC1h 55m
2026-07-13 LGL31PT - Jul 13, 15:30 UTCJul 13, 17:50 UTC2h 20m
2026-07-13 LGL3752 LIS → LUX Jul 13, 11:05 UTCJul 13, 13:15 UTC2h 10m
2026-07-13 LGL51P LUX → LIS Jul 13, 06:50 UTCJul 13, 09:35 UTC2h 45m
2026-07-12 LGL8246 NCE → LUX Jul 12, 21:25 UTCJul 12, 22:25 UTC1h 0m
2026-07-12 LGL8245 - Jul 12, 18:05 UTCJul 12, 19:15 UTC1h 10m
2026-07-12 LGL6558 - Jul 12, 14:40 UTCJul 12, 16:15 UTC1h 35m
2026-07-12 LGL57FC - Jul 12, 11:55 UTCJul 12, 13:15 UTC1h 20m
2026-07-12 LGL204 - Jul 12, 08:01 UTCJul 12, 10:25 UTC2h 25m
2026-07-12 LGL203 - Jul 12, 04:05 UTCJul 12, 06:10 UTC2h 5m
2026-07-11 LGL202 - Jul 11, 18:55 UTCJul 11, 21:15 UTC2h 20m
2026-07-11 LGL201 - Jul 11, 15:15 UTCJul 11, 17:25 UTC2h 10m
2026-07-11 LGL54KF - Jul 11, 12:10 UTCJul 11, 13:30 UTC1h 20m
2026-07-11 LGL253K - Jul 11, 08:50 UTCJul 11, 10:20 UTC1h 30m
2026-07-11 LGL8254 NCE → LUX Jul 11, 06:35 UTCJul 11, 07:40 UTC1h 5m
2026-07-11 LGL3NC - Jul 11, 04:20 UTCJul 11, 05:25 UTC1h 5m
2026-07-10 LGL84BG - Jul 10, 18:20 UTCJul 10, 21:05 UTC2h 46m
2026-07-10 LGL813 - Jul 10, 15:00 UTCJul 10, 17:10 UTC2h 10m
2026-07-10 LGL962 - Jul 10, 08:05 UTCJul 10, 09:55 UTC1h 50m
2026-07-10 LGL961 LUX → NBE Jul 10, 04:25 UTCJul 10, 06:35 UTC2h 10m
2026-07-09 LGL84R - Jul 9, 17:15 UTCJul 9, 20:35 UTC3h 20m
2026-07-09 LGL843 - Jul 9, 13:05 UTCJul 9, 15:50 UTC2h 45m
2026-07-08 LGL714 - Jul 8, 17:00 UTCJul 8, 20:45 UTC3h 45m
2026-07-08 LGL713 - Jul 8, 11:15 UTCJul 8, 15:15 UTC4h 0m
2026-07-08 LGL3770 OPO → LUX Jul 8, 07:40 UTCJul 8, 09:45 UTC2h 5m
2026-07-08 LGL3769 - Jul 8, 04:10 UTCJul 8, 06:10 UTC2h 0m
2026-07-07 LGL142 - Jul 7, 09:55 UTCJul 7, 20:30 UTC10h 35m
2026-07-07 LGL278 - Jul 7, 07:10 UTCJul 7, 08:35 UTC1h 25m
2026-07-07 LGL277 - Jul 7, 04:45 UTCJul 7, 06:10 UTC1h 25m
2026-07-06 LGL712 - Jul 6, 16:50 UTCJul 6, 20:35 UTC3h 45m
2026-07-06 LGL711 - Jul 6, 11:20 UTCJul 6, 15:20 UTC4h 0m
2026-07-06 LGL3770 OPO → LUX Jul 6, 07:55 UTCJul 6, 10:00 UTC2h 5m
2026-07-06 LGL3769 - Jul 6, 04:20 UTCJul 6, 06:30 UTC2h 10m
2026-07-05 LGL704 - Jul 5, 17:05 UTCJul 5, 21:00 UTC3h 55m
2026-07-05 LGL703 - Jul 5, 11:40 UTCJul 5, 15:45 UTC4h 5m
2026-07-05 LGL942 - Jul 5, 08:00 UTCJul 5, 10:15 UTC2h 15m
2026-07-05 LGL941 - Jul 5, 04:30 UTCJul 5, 06:05 UTC1h 35m
2026-07-04 LGL732 - Jul 4, 16:55 UTCJul 4, 20:40 UTC3h 45m
2026-07-04 LGL731 - Jul 4, 11:45 UTCJul 4, 15:45 UTC4h 0m
2026-07-04 LGL82JR - Jul 4, 07:55 UTCJul 4, 10:20 UTC2h 25m
2026-07-04 LGL681 LUX → XRY Jul 4, 04:20 UTCJul 4, 06:40 UTC2h 20m
2026-07-03 LGL32PR OPO → LUX Jul 3, 19:10 UTCJul 3, 21:15 UTC2h 5m
2026-07-03 LGL31PT - Jul 3, 15:30 UTCJul 3, 17:40 UTC2h 10m
2026-07-03 LGL3770 OPO → LUX Jul 3, 07:35 UTCJul 3, 09:35 UTC2h 0m
2026-07-03 LGL3769 - Jul 3, 04:15 UTCJul 3, 06:25 UTC2h 10m
2026-07-02 LGL84R RHO → LUX Jul 2, 17:30 UTCJul 2, 21:00 UTC3h 30m
2026-07-02 LGL843 - Jul 2, 13:05 UTCJul 2, 16:10 UTC3h 5m
2026-07-02 LGL856 - Jul 2, 08:45 UTCJul 2, 11:30 UTC2h 45m
2026-07-02 LGL855 - Jul 2, 04:45 UTCJul 2, 07:25 UTC2h 40m
2026-07-01 LGL834 - Jul 1, 17:15 UTCJul 1, 20:35 UTC3h 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-LBB page for operator, model, and routing details .

Mode-S 4D00F3 frequently asked

What is Mode-S code 4D00F3?
4D00F3 is an ICAO 24-bit transponder address. Allocated to Luxembourg. Assigned to LX-LBB.
Where is Mode-S 4D00F3 registered?
Mode-S code 4D00F3 is allocated to Luxembourg (LU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D00F3 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D00F3, octal 23200363, decimal 5,046,515.
What flights does 4D00F3 operate?
Mode-S 4D00F3 has broadcast 20 distinct callsigns, including LGL204, LGL3770, LGL3769, LGL203, LGL38MA.