sensors Mode-S transponder
4D2481
ICAO 24-bit transponder address
Currently assigned to 9H-BELL · DASSAULT Falcon 7X
- Hex
- 4D2481
- Octal
- 23222201
- Decimal
- 5,055,617
- Tail
- 9H-BELL
- Type
- FA7X
- Flights observed
- 28
- Distinct callsigns
- 1
- Country
- -
- Last broadcast
- 1d ago
Last known position
Callsign history 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| GSM07X | - | 28 | 2026-07-26 |
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | GSM07X | - | Jul 26, 14:15 UTC | Jul 26, 14:45 UTC | 30m |
| 2026-07-26 | GSM07X | - | Jul 26, 11:35 UTC | Jul 26, 12:20 UTC | 45m |
| 2026-07-23 | GSM07X | - | Jul 23, 16:15 UTC | Jul 23, 17:20 UTC | 1h 5m |
| 2026-07-21 | GSM07X | - | Jul 21, 22:50 UTC | Jul 22, 01:20 UTC | 2h 30m |
| 2026-07-21 | GSM07X | - | Jul 21, 15:30 UTC | Jul 21, 22:10 UTC | 6h 40m |
| 2026-07-21 | GSM07X | - | Jul 21, 13:35 UTC | Jul 21, 14:25 UTC | 50m |
| 2026-07-19 | GSM07X | - | Jul 19, 13:00 UTC | Jul 19, 23:20 UTC | 10h 20m |
| 2026-07-18 | GSM07X | - | Jul 18, 13:20 UTC | Jul 18, 15:40 UTC | 2h 20m |
| 2026-07-10 | GSM07X | - | Jul 10, 21:00 UTC | Jul 11, 06:10 UTC | 9h 10m |
| 2026-07-08 | GSM07X | - | Jul 8, 16:25 UTC | Jul 8, 18:35 UTC | 2h 10m |
| 2026-07-08 | GSM07X | - | Jul 8, 08:15 UTC | Jul 8, 15:05 UTC | 6h 50m |
| 2026-07-06 | GSM07X | - | Jul 6, 14:25 UTC | Jul 6, 16:20 UTC | 1h 55m |
| 2026-07-03 | GSM07X | - | Jul 3, 12:10 UTC | Jul 3, 18:45 UTC | 6h 35m |
| 2026-06-28 | GSM07X | - | Jun 28, 13:19 UTC | Jun 28, 22:10 UTC | 8h 50m |
| 2026-06-28 | GSM07X | - | Jun 28, 08:55 UTC | Jun 28, 10:39 UTC | 1h 45m |
| 2026-06-26 | GSM07X | - | Jun 26, 18:20 UTC | Jun 26, 19:04 UTC | 45m |
| 2026-06-26 | GSM07X | - | Jun 26, 16:20 UTC | Jun 26, 17:15 UTC | 55m |
| 2026-06-25 | GSM07X | - | Jun 25, 19:59 UTC | Jun 25, 21:25 UTC | 1h 25m |
| 2026-06-25 | GSM07X | - | Jun 25, 18:59 UTC | Jun 25, 19:54 UTC | 55m |
| 2026-06-25 | GSM07X | SOF → BQH | Jun 25, 08:45 UTC | Jun 25, 11:25 UTC | 2h 40m |
| 2026-06-24 | GSM07X | - | Jun 24, 09:24 UTC | Jun 24, 10:04 UTC | 40m |
| 2026-06-23 | GSM07X | - | Jun 23, 14:44 UTC | Jun 23, 16:05 UTC | 1h 20m |
| 2026-06-23 | GSM07X | - | Jun 23, 11:59 UTC | Jun 23, 13:55 UTC | 1h 55m |
| 2026-06-13 | GSM07X | - | Jun 13, 05:55 UTC | Jun 13, 06:40 UTC | 45m |
| 2026-06-12 | GSM07X | - | Jun 12, 22:05 UTC | Jun 13, 05:15 UTC | 7h 9m |
| 2026-06-12 | GSM07X | - | Jun 12, 20:40 UTC | Jun 12, 21:05 UTC | 25m |
| 2026-06-10 | GSM07X | - | Jun 10, 20:35 UTC | Jun 11, 04:00 UTC | 7h 25m |
| 2026-06-09 | GSM07X | - | Jun 9, 09:05 UTC | Jun 9, 10:40 UTC | 1h 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 9H-BELL page for operator, model, and routing details .