sensors Mode-S transponder
4D0111
ICAO 24-bit transponder address · allocated to Luxembourg
Currently assigned to LX-VCH · BOEING 747-8
- Hex
- 4D0111
- Octal
- 23200421
- Decimal
- 5,046,545
- Country
- LU
- Tail
- LX-VCH
- Type
- B748
- Flights observed
- 119
- Distinct callsigns
- 20
- Country
- LU
- Last broadcast
- 6d ago
Last known position
Country allocation
The ICAO 24-bit address 4D0111 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 |
|---|---|---|---|
| CLX272 | Cargolux | 10 | 2026-05-16 |
| CLX12V | - | 7 | 2026-04-15 |
| CLX915 | - | 4 | 2026-04-13 |
| CLX7337 | Cargolux | 4 | 2026-05-11 |
| CLX7334 | Cargolux | 4 | 2026-05-01 |
| CLX7332 | - | 4 | 2026-04-15 |
| CLX531 | - | 4 | 2026-04-16 |
| CLX4M | Cargolux | 4 | 2026-05-14 |
| CLX4324 | Cargolux | 4 | 2026-05-15 |
| CLX261 | Cargolux | 4 | 2026-05-21 |
| CLX251 | Cargolux | 4 | 2026-05-10 |
| CLX92 | - | 3 | 2026-04-20 |
| CLX7355 | Cargolux | 3 | 2026-04-25 |
| CLX56 | - | 3 | 2026-05-06 |
| CLX4481 | - | 3 | 2026-04-13 |
| CLX39 | - | 3 | 2026-05-07 |
| CLX352 | Cargolux | 3 | 2026-05-02 |
| CLX342 | Cargolux | 3 | 2026-05-04 |
| CLX9727 | Cargolux | 2 | 2026-04-19 |
| CLX9722 | Cargolux | 2 | 2026-05-05 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-23 | CLX73M | IAH → LUX | May 23, 19:10 UTC | May 24, 04:10 UTC | 9h 0m |
| 2026-05-23 | CLX5166 | GDL → LUX | May 23, 11:25 UTC | May 23, 16:15 UTC | 4h 50m |
| 2026-05-23 | CLX5165 | MEX → GDL | May 23, 01:50 UTC | May 23, 07:45 UTC | 5h 55m |
| 2026-05-22 | CLX293 | HKG → ANC | May 22, 14:40 UTC | May 23, 00:15 UTC | 9h 35m |
| 2026-05-21 | CLX4164 | LUX → HKG | May 21, 21:25 UTC | May 22, 09:00 UTC | 11h 35m |
| 2026-05-21 | CLX261 | HKG → ANC | May 21, 09:25 UTC | May 21, 15:50 UTC | 6h 25m |
| 2026-05-21 | CLX261 | HKG → ANC | May 21, 03:05 UTC | May 21, 05:25 UTC | 2h 20m |
| 2026-05-20 | CLX261 | HKG → ANC | May 20, 17:45 UTC | May 21, 01:00 UTC | 7h 15m |
| 2026-05-20 | CLX261 | HKG → ANC | May 20, 06:50 UTC | May 20, 16:05 UTC | 9h 15m |
| 2026-05-19 | CLX4802 | DOH → LUX | May 19, 16:40 UTC | May 19, 19:05 UTC | 2h 25m |
| 2026-05-19 | CLX52 | - | May 19, 08:00 UTC | May 19, 12:15 UTC | 4h 15m |
| 2026-05-18 | CLX52 | - | May 18, 12:30 UTC | May 19, 12:15 UTC | 23h 44m |
| 2026-05-18 | CLX7601 | LUX → VCP | May 18, 10:25 UTC | May 19, 10:15 UTC | 23h 49m |
| 2026-05-18 | CLX7601 | LUX → VCP | May 18, 09:20 UTC | May 19, 08:15 UTC | 22h 54m |
| 2026-05-17 | CLX86 | - | May 17, 15:10 UTC | May 18, 06:20 UTC | 15h 10m |
| 2026-05-17 | - | - | May 17, 13:20 UTC | May 17, 13:31 UTC | 10m |
| 2026-05-16 | CLX7216 | KUL → LUX | May 16, 15:31 UTC | May 16, 19:30 UTC | 4h 0m |
| 2026-05-16 | CLX272 | HKG → ANC | May 16, 05:25 UTC | May 16, 12:35 UTC | 7h 11m |
| 2026-05-15 | CLX272 | HKG → ANC | May 15, 20:40 UTC | May 16, 02:20 UTC | 5h 40m |
| 2026-05-15 | CLX272 | HKG → ANC | May 15, 09:15 UTC | May 15, 19:10 UTC | 9h 54m |
| 2026-05-15 | CLX4324 | DMM → HKG | May 15, 03:25 UTC | May 15, 04:00 UTC | 35m |
| 2026-05-14 | CLX4M | LUX → DWC | May 14, 12:50 UTC | May 15, 01:15 UTC | 12h 25m |
| 2026-05-14 | CLX46L | ANC → ORD | May 14, 01:45 UTC | May 14, 09:30 UTC | 7h 45m |
| 2026-05-13 | CLX46L | ANC → ORD | May 13, 17:15 UTC | May 13, 22:20 UTC | 5h 5m |
| 2026-05-13 | CLX5483 | CGO → ANC | May 13, 09:40 UTC | May 13, 15:50 UTC | 6h 10m |
| 2026-05-12 | CLX4482 | LUX → KMQ | May 12, 15:05 UTC | May 13, 07:20 UTC | 16h 15m |
| 2026-05-12 | CLX962 | - | May 12, 04:55 UTC | May 12, 09:40 UTC | 4h 45m |
| 2026-05-11 | CLX962 | - | May 11, 17:15 UTC | May 11, 17:30 UTC | 15m |
| 2026-05-11 | CLX7337 | CGK → HKG | May 11, 14:20 UTC | May 11, 14:45 UTC | 25m |
| 2026-05-11 | CLX7337 | CGK → HKG | May 11, 10:20 UTC | May 11, 11:50 UTC | 1h 30m |
| 2026-05-11 | CLX7337 | CGK → HKG | May 11, 05:00 UTC | May 11, 05:15 UTC | 15m |
| 2026-05-10 | CLX7337 | CGK → HKG | May 10, 16:14 UTC | May 11, 04:25 UTC | 12h 10m |
| 2026-05-10 | CLX251 | HKG → ANC | May 10, 03:20 UTC | May 10, 12:15 UTC | 8h 55m |
| 2026-05-09 | CLX251 | HKG → ANC | May 9, 22:45 UTC | May 10, 00:30 UTC | 1h 45m |
| 2026-05-09 | CLX251 | HKG → ANC | May 9, 14:10 UTC | May 9, 19:40 UTC | 5h 30m |
| 2026-05-09 | CLX251 | HKG → ANC | May 9, 03:35 UTC | May 9, 12:20 UTC | 8h 45m |
| 2026-05-08 | CLX4325 | - | May 8, 23:30 UTC | May 8, 23:50 UTC | 20m |
| 2026-05-08 | CLX4325 | - | May 8, 12:44 UTC | May 8, 16:40 UTC | 3h 55m |
| 2026-05-07 | CLX37 | - | May 7, 18:55 UTC | May 8, 08:05 UTC | 13h 9m |
| 2026-05-07 | CLX37 | - | May 7, 10:35 UTC | May 8, 08:05 UTC | 21h 30m |
| 2026-05-07 | CLX39 | - | May 7, 00:20 UTC | May 7, 19:10 UTC | 18h 50m |
| 2026-05-06 | CLX39 | - | May 6, 22:20 UTC | May 7, 19:10 UTC | 20h 50m |
| 2026-05-06 | CLX39 | - | May 6, 21:00 UTC | May 7, 19:10 UTC | 22h 10m |
| 2026-05-06 | CLX56 | - | May 6, 11:05 UTC | May 6, 12:01 UTC | 55m |
| 2026-05-06 | CLX56 | - | May 6, 04:45 UTC | May 6, 09:30 UTC | 4h 45m |
| 2026-05-05 | CLX56 | - | May 5, 08:20 UTC | May 6, 08:15 UTC | 23h 55m |
| 2026-05-05 | CLX9722 | LUX → CGO | May 5, 06:20 UTC | May 6, 06:00 UTC | 23h 40m |
| 2026-05-05 | CLX9722 | LUX → CGO | May 5, 04:25 UTC | May 5, 08:25 UTC | 4h 0m |
| 2026-05-04 | CLX342 | ANC → MIA | May 4, 07:30 UTC | May 4, 15:45 UTC | 8h 15m |
| 2026-05-03 | CLX342 | ANC → MIA | May 3, 21:44 UTC | May 4, 04:20 UTC | 6h 35m |
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-VCH page for operator, model, and routing details .