sensors Mode-S transponder
15409A
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-82074 · ANTONOV An-124 Ruslan
- Hex
- 15409A
- Octal
- 05240232
- Decimal
- 1,392,794
- Country
- RU
- Tail
- RA-82074
- Type
- A124
- Flights observed
- 26
- Distinct callsigns
- 16
- Country
- RU
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 15409A falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia 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 16 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| VDA7890 | - | 3 | 2026-04-28 |
| VDA7886 | - | 3 | 2026-05-14 |
| VDA7911 | - | 2 | 2026-05-20 |
| VDA7894 | - | 2 | 2026-05-08 |
| VDA7893 | - | 2 | 2026-04-30 |
| VDA7892 | - | 2 | 2026-04-30 |
| VDA7881 | - | 2 | 2026-05-12 |
| VDA7826 | - | 2 | 2026-04-13 |
| VDA7921 | - | 1 | 2026-06-05 |
| VDA7914 | - | 1 | 2026-05-20 |
| VDA7900 | - | 1 | 2026-05-09 |
| VDA7891 | - | 1 | 2026-04-28 |
| VDA7885 | - | 1 | 2026-04-23 |
| VDA7882 | - | 1 | 2026-04-17 |
| VDA7868 | - | 1 | 2026-06-02 |
| VDA7867 | - | 1 | 2026-05-31 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-05 | VDA7921 | - | Jun 5, 16:35 UTC | Jun 5, 19:40 UTC | 3h 5m |
| 2026-06-02 | VDA7868 | - | Jun 2, 04:10 UTC | Jun 2, 04:40 UTC | 30m |
| 2026-05-31 | VDA7867 | - | May 31, 19:20 UTC | May 31, 23:50 UTC | 4h 30m |
| 2026-05-20 | VDA7914 | - | May 20, 23:00 UTC | May 21, 08:15 UTC | 9h 15m |
| 2026-05-20 | VDA7911 | - | May 20, 05:30 UTC | May 20, 23:05 UTC | 17h 35m |
| 2026-05-20 | VDA7911 | - | May 20, 03:10 UTC | May 20, 23:05 UTC | 19h 56m |
| 2026-05-14 | VDA7886 | - | May 14, 05:15 UTC | May 14, 05:25 UTC | 10m |
| 2026-05-14 | VDA7886 | - | May 14, 02:10 UTC | May 14, 03:20 UTC | 1h 10m |
| 2026-05-13 | VDA7886 | - | May 13, 21:45 UTC | May 13, 22:50 UTC | 1h 5m |
| 2026-05-12 | VDA7881 | - | May 12, 10:15 UTC | May 12, 11:25 UTC | 1h 10m |
| 2026-05-09 | VDA7900 | - | May 9, 23:44 UTC | May 10, 16:30 UTC | 16h 45m |
| 2026-05-08 | VDA7894 | - | May 8, 03:55 UTC | May 8, 05:00 UTC | 1h 5m |
| 2026-05-07 | VDA7894 | - | May 7, 22:54 UTC | May 7, 23:39 UTC | 45m |
| 2026-04-30 | VDA7893 | - | Apr 30, 13:15 UTC | Apr 30, 15:00 UTC | 1h 45m |
| 2026-04-30 | VDA7893 | - | Apr 30, 09:35 UTC | Apr 30, 10:00 UTC | 25m |
| 2026-04-30 | VDA7892 | - | Apr 30, 00:00 UTC | Apr 30, 03:50 UTC | 3h 50m |
| 2026-04-29 | VDA7892 | - | Apr 29, 16:55 UTC | Apr 29, 20:25 UTC | 3h 30m |
| 2026-04-28 | VDA7891 | - | Apr 28, 11:35 UTC | Apr 28, 16:20 UTC | 4h 45m |
| 2026-04-28 | VDA7890 | - | Apr 28, 02:30 UTC | Apr 28, 04:55 UTC | 2h 25m |
| 2026-04-27 | VDA7890 | - | Apr 27, 23:30 UTC | Apr 28, 00:35 UTC | 1h 5m |
| 2026-04-27 | VDA7890 | - | Apr 27, 18:35 UTC | Apr 27, 19:30 UTC | 55m |
| 2026-04-23 | VDA7885 | - | Apr 23, 09:10 UTC | Apr 23, 09:35 UTC | 25m |
| 2026-04-17 | VDA7882 | - | Apr 17, 17:25 UTC | Apr 17, 17:40 UTC | 15m |
| 2026-04-17 | VDA7881 | - | Apr 17, 01:20 UTC | Apr 17, 01:40 UTC | 20m |
| 2026-04-13 | VDA7826 | - | Apr 13, 03:55 UTC | Apr 13, 04:05 UTC | 10m |
| 2026-04-13 | VDA7826 | - | Apr 13, 01:00 UTC | Apr 13, 04:05 UTC | 3h 5m |
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 RA-82074 page for operator, model, and routing details .