sensors Mode-S transponder
4D0239
ICAO 24-bit transponder address · allocated to Luxembourg
Currently assigned to LX-IAM · DASSAULT Falcon 7X
- Hex
- 4D0239
- Octal
- 23201071
- Decimal
- 5,046,841
- Country
- LU
- Tail
- LX-IAM
- Type
- FA7X
- Flights observed
- 26
- Distinct callsigns
- 1
- Country
- LU
- Last broadcast
- 12h ago
Last known position
Country allocation
The ICAO 24-bit address 4D0239 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SVW26AM | - | 26 | 2026-06-02 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | SVW26AM | GVA → NCE | Jun 2, 08:25 UTC | Jun 2, 09:05 UTC | 40m |
| 2026-05-31 | SVW26AM | FAO → GVA | May 31, 17:20 UTC | May 31, 19:25 UTC | 2h 5m |
| 2026-05-31 | SVW26AM | NCE → FAO | May 31, 08:25 UTC | May 31, 10:15 UTC | 1h 50m |
| 2026-05-29 | SVW26AM | BRQ → NCE | May 29, 16:00 UTC | May 29, 17:20 UTC | 1h 20m |
| 2026-05-28 | SVW26AM | - | May 28, 17:55 UTC | May 28, 19:25 UTC | 1h 30m |
| 2026-05-22 | SVW26AM | PRG → NCE | May 22, 12:10 UTC | May 22, 13:25 UTC | 1h 15m |
| 2026-05-22 | SVW26AM | - | May 22, 06:10 UTC | May 22, 07:05 UTC | 55m |
| 2026-05-20 | SVW26AM | - | May 20, 14:40 UTC | May 20, 19:15 UTC | 4h 35m |
| 2026-05-19 | SVW26AM | - | May 19, 13:45 UTC | May 19, 14:05 UTC | 20m |
| 2026-05-17 | SVW26AM | - | May 17, 12:05 UTC | May 17, 15:05 UTC | 3h 0m |
| 2026-05-16 | SVW26AM | - | May 16, 14:01 UTC | May 16, 16:05 UTC | 2h 5m |
| 2026-05-13 | SVW26AM | - | May 13, 17:55 UTC | May 13, 19:35 UTC | 1h 40m |
| 2026-05-09 | SVW26AM | - | May 9, 20:30 UTC | May 9, 22:05 UTC | 1h 35m |
| 2026-05-09 | SVW26AM | NCE → LBG | May 9, 16:20 UTC | May 9, 17:30 UTC | 1h 10m |
| 2026-05-03 | SVW26AM | PRG → NCE | May 3, 17:40 UTC | May 3, 19:05 UTC | 1h 25m |
| 2026-05-03 | SVW26AM | - | May 3, 15:20 UTC | May 3, 16:30 UTC | 1h 10m |
| 2026-04-30 | SVW26AM | NCE → LBG | Apr 30, 19:25 UTC | Apr 30, 20:30 UTC | 1h 5m |
| 2026-04-25 | SVW26AM | UEO → NCE | Apr 25, 04:25 UTC | Apr 25, 20:25 UTC | 16h 0m |
| 2026-04-21 | SVW26AM | - | Apr 21, 04:55 UTC | Apr 21, 07:10 UTC | 2h 15m |
| 2026-04-16 | SVW26AM | - | Apr 16, 23:25 UTC | Apr 17, 00:20 UTC | 55m |
| 2026-04-15 | SVW26AM | - | Apr 15, 22:00 UTC | Apr 15, 22:55 UTC | 55m |
| 2026-04-15 | SVW26AM | - | Apr 15, 13:01 UTC | Apr 15, 13:30 UTC | 30m |
| 2026-04-15 | SVW26AM | - | Apr 15, 11:00 UTC | Apr 15, 12:55 UTC | 1h 55m |
| 2026-04-15 | SVW26AM | - | Apr 15, 09:40 UTC | Apr 15, 10:55 UTC | 1h 15m |
| 2026-04-14 | SVW26AM | - | Apr 14, 06:00 UTC | Apr 14, 06:35 UTC | 35m |
| 2026-04-13 | SVW26AM | - | Apr 13, 04:55 UTC | Apr 13, 06:55 UTC | 2h 0m |
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-IAM page for operator, model, and routing details .