sensors Mode-S transponder
4D23DE
ICAO 24-bit transponder address · allocated to Malta
Currently assigned to 9H-GSWAN · DASSAULT Falcon 7X
- Hex
- 4D23DE
- Octal
- 23221736
- Decimal
- 5,055,454
- Country
- MT
- Tail
- 9H-GSWAN
- Type
- FA7X
- Flights observed
- 58
- Distinct callsigns
- 1
- Country
- MT
- Last broadcast
- 14h ago
Last known position
Country allocation
The ICAO 24-bit address 4D23DE falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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 |
|---|---|---|---|
| ULC47 | - | 58 | 2026-07-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | ULC47 | - | Jul 17, 14:04 UTC | Jul 17, 15:10 UTC | 1h 5m |
| 2026-07-16 | ULC47 | - | Jul 16, 11:15 UTC | Jul 16, 12:00 UTC | 45m |
| 2026-07-16 | ULC47 | - | Jul 16, 08:20 UTC | Jul 16, 10:00 UTC | 1h 40m |
| 2026-07-15 | ULC47 | - | Jul 15, 13:25 UTC | Jul 15, 15:10 UTC | 1h 45m |
| 2026-07-12 | ULC47 | - | Jul 12, 15:45 UTC | Jul 12, 16:25 UTC | 40m |
| 2026-07-08 | ULC47 | - | Jul 8, 09:30 UTC | Jul 8, 10:10 UTC | 40m |
| 2026-07-08 | ULC47 | - | Jul 8, 07:55 UTC | Jul 8, 08:05 UTC | 10m |
| 2026-07-05 | ULC47 | - | Jul 5, 15:45 UTC | Jul 5, 17:05 UTC | 1h 20m |
| 2026-07-05 | ULC47 | - | Jul 5, 11:20 UTC | Jul 5, 13:00 UTC | 1h 40m |
| 2026-07-03 | ULC47 | LIN → CEQ | Jul 3, 15:55 UTC | Jul 3, 16:55 UTC | 1h 0m |
| 2026-06-29 | ULC47 | - | Jun 29, 09:05 UTC | Jun 29, 09:44 UTC | 40m |
| 2026-06-26 | ULC47 | LIN → CEQ | Jun 26, 15:10 UTC | Jun 26, 15:49 UTC | 40m |
| 2026-06-23 | ULC47 | - | Jun 23, 13:09 UTC | Jun 23, 14:15 UTC | 1h 5m |
| 2026-06-22 | ULC47 | LUG → LBG | Jun 22, 15:05 UTC | Jun 22, 16:10 UTC | 1h 5m |
| 2026-06-22 | ULC47 | GVA → LUG | Jun 22, 11:35 UTC | Jun 22, 12:10 UTC | 35m |
| 2026-06-20 | ULC47 | - | Jun 20, 15:29 UTC | Jun 20, 16:09 UTC | 40m |
| 2026-06-20 | ULC47 | - | Jun 20, 12:50 UTC | Jun 20, 13:29 UTC | 40m |
| 2026-06-17 | ULC47 | - | Jun 17, 14:00 UTC | Jun 17, 14:35 UTC | 35m |
| 2026-06-17 | ULC47 | - | Jun 17, 10:00 UTC | Jun 17, 10:50 UTC | 50m |
| 2026-06-17 | ULC47 | - | Jun 17, 00:55 UTC | Jun 17, 07:50 UTC | 6h 55m |
| 2026-06-11 | ULC47 | - | Jun 11, 00:15 UTC | Jun 11, 01:00 UTC | 45m |
| 2026-06-10 | ULC47 | - | Jun 10, 19:25 UTC | Jun 10, 20:40 UTC | 1h 15m |
| 2026-06-10 | ULC47 | - | Jun 10, 12:35 UTC | Jun 10, 19:20 UTC | 6h 45m |
| 2026-06-09 | ULC47 | - | Jun 9, 14:55 UTC | Jun 9, 15:35 UTC | 40m |
| 2026-06-09 | ULC47 | - | Jun 9, 13:10 UTC | Jun 9, 13:55 UTC | 45m |
| 2026-06-09 | ULC47 | - | Jun 9, 09:50 UTC | Jun 9, 10:10 UTC | 20m |
| 2026-06-01 | ULC47 | JMK → LUG | Jun 1, 10:45 UTC | Jun 1, 12:55 UTC | 2h 10m |
| 2026-06-01 | ULC47 | - | Jun 1, 07:10 UTC | Jun 1, 09:05 UTC | 1h 55m |
| 2026-05-31 | ULC47 | - | May 31, 10:55 UTC | May 31, 12:20 UTC | 1h 25m |
| 2026-05-30 | ULC47 | - | May 30, 12:10 UTC | May 30, 13:40 UTC | 1h 30m |
| 2026-05-25 | ULC47 | - | May 25, 11:15 UTC | May 25, 12:10 UTC | 55m |
| 2026-05-23 | ULC47 | TEB → LBG | May 23, 14:05 UTC | May 23, 20:25 UTC | 6h 20m |
| 2026-05-23 | ULC47 | YMX → TEB | May 23, 12:05 UTC | May 23, 13:05 UTC | 1h 0m |
| 2026-05-22 | ULC47 | GVA → YMX | May 22, 14:10 UTC | May 22, 21:15 UTC | 7h 5m |
| 2026-05-20 | ULC47 | - | May 20, 09:20 UTC | May 20, 09:50 UTC | 30m |
| 2026-05-19 | ULC47 | - | May 19, 16:50 UTC | May 19, 17:35 UTC | 45m |
| 2026-05-19 | ULC47 | LIN → CIA | May 19, 09:55 UTC | May 19, 10:50 UTC | 55m |
| 2026-05-19 | ULC47 | - | May 19, 07:05 UTC | May 19, 07:20 UTC | 15m |
| 2026-05-16 | ULC47 | MXP → LUG | May 16, 08:36 UTC | May 16, 08:46 UTC | 10m |
| 2026-05-16 | ULC47 | TEB → MXP | May 16, 00:00 UTC | May 16, 07:11 UTC | 7h 11m |
| 2026-05-14 | ULC47 | - | May 14, 04:40 UTC | May 14, 12:30 UTC | 7h 50m |
| 2026-05-07 | ULC47 | - | May 7, 12:15 UTC | May 7, 12:55 UTC | 40m |
| 2026-05-07 | ULC47 | - | May 7, 09:35 UTC | May 7, 09:50 UTC | 15m |
| 2026-04-29 | ULC47 | - | Apr 29, 07:59 UTC | Apr 29, 08:10 UTC | 10m |
| 2026-04-28 | ULC47 | - | Apr 28, 16:50 UTC | Apr 28, 17:40 UTC | 50m |
| 2026-04-28 | ULC47 | - | Apr 28, 08:40 UTC | Apr 28, 09:25 UTC | 45m |
| 2026-04-27 | ULC47 | - | Apr 27, 17:45 UTC | Apr 27, 18:25 UTC | 40m |
| 2026-04-27 | ULC47 | - | Apr 27, 16:05 UTC | Apr 27, 17:10 UTC | 1h 5m |
| 2026-04-27 | ULC47 | - | Apr 27, 13:00 UTC | Apr 27, 13:30 UTC | 30m |
| 2026-04-22 | ULC47 | - | Apr 22, 14:25 UTC | Apr 22, 14:45 UTC | 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 9H-GSWAN page for operator, model, and routing details .