sensors Mode-S transponder
151FDA
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73690 · AIRBUS A-320
- Hex
- 151FDA
- Octal
- 05217732
- Decimal
- 1,384,410
- Country
- RU
- Tail
- RA-73690
- Type
- A320
- Flights observed
- 33
- Distinct callsigns
- 11
- Country
- RU
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 151FDA 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| LLM485 | Yamal Airlines | 10 | 2026-05-17 |
| LLM386 | Yamal Airlines | 5 | 2026-06-08 |
| LLM377 | Yamal Airlines | 4 | 2026-06-05 |
| LLM477 | Yamal Airlines | 3 | 2026-05-20 |
| LLM185 | Yamal Airlines | 3 | 2026-06-05 |
| LLM9502 | - | 2 | 2026-04-13 |
| LLM486 | Yamal Airlines | 2 | 2026-05-24 |
| LLM685 | Yamal Airlines | 1 | 2026-04-25 |
| LLM585 | Yamal Airlines | 1 | 2026-05-03 |
| LLM385 | - | 1 | 2026-04-24 |
| LLM178 | - | 1 | 2026-04-19 |
Recent flights last 33
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-08 | LLM386 | AER → NUX | Jun 8, 06:35 UTC | Jun 8, 07:20 UTC | 45m |
| 2026-06-05 | LLM377 | NUX → MRV | Jun 5, 15:10 UTC | Jun 5, 16:15 UTC | 1h 5m |
| 2026-06-05 | LLM185 | TJM → AER | Jun 5, 03:45 UTC | Jun 5, 04:00 UTC | 15m |
| 2026-06-05 | LLM185 | TJM → AER | Jun 5, 02:05 UTC | Jun 5, 03:05 UTC | 1h 0m |
| 2026-06-01 | LLM386 | AER → NUX | Jun 1, 05:40 UTC | Jun 1, 05:45 UTC | 5m |
| 2026-05-24 | LLM486 | AER → SLY | May 24, 08:40 UTC | May 24, 13:10 UTC | 4h 30m |
| 2026-05-21 | LLM386 | AER → NUX | May 21, 20:55 UTC | May 22, 13:45 UTC | 16h 50m |
| 2026-05-21 | LLM386 | AER → NUX | May 21, 08:15 UTC | May 22, 06:10 UTC | 21h 55m |
| 2026-05-20 | LLM477 | SLY → MRV | May 20, 14:40 UTC | May 21, 08:20 UTC | 17h 40m |
| 2026-05-18 | LLM377 | NUX → MRV | May 18, 06:35 UTC | May 18, 16:05 UTC | 9h 30m |
| 2026-05-17 | LLM485 | SLY → AER | May 17, 14:35 UTC | May 18, 07:15 UTC | 16h 40m |
| 2026-05-17 | LLM485 | SLY → AER | May 17, 08:45 UTC | May 17, 15:31 UTC | 6h 45m |
| 2026-05-15 | LLM386 | AER → NUX | May 15, 06:40 UTC | May 15, 19:15 UTC | 12h 34m |
| 2026-05-14 | LLM485 | SLY → AER | May 14, 14:20 UTC | May 15, 07:30 UTC | 17h 10m |
| 2026-05-14 | LLM485 | SLY → AER | May 14, 06:25 UTC | May 14, 15:20 UTC | 8h 55m |
| 2026-05-13 | LLM477 | SLY → MRV | May 13, 14:45 UTC | May 14, 14:30 UTC | 23h 45m |
| 2026-05-11 | LLM377 | NUX → MRV | May 11, 06:20 UTC | May 11, 16:25 UTC | 10h 5m |
| 2026-05-10 | LLM485 | SLY → AER | May 10, 14:20 UTC | May 11, 07:10 UTC | 16h 50m |
| 2026-05-10 | LLM485 | SLY → AER | May 10, 06:35 UTC | May 11, 06:30 UTC | 23h 55m |
| 2026-05-10 | LLM485 | SLY → AER | May 10, 06:25 UTC | May 10, 15:49 UTC | 9h 25m |
| 2026-05-09 | LLM486 | AER → SLY | May 9, 11:45 UTC | May 10, 07:19 UTC | 19h 35m |
| 2026-05-09 | LLM377 | NUX → MRV | May 9, 08:40 UTC | May 9, 09:40 UTC | 1h 0m |
| 2026-05-04 | LLM485 | SLY → AER | May 4, 15:50 UTC | May 4, 16:05 UTC | 15m |
| 2026-05-03 | LLM485 | SLY → AER | May 3, 18:55 UTC | May 4, 16:05 UTC | 21h 10m |
| 2026-05-03 | LLM585 | NOJ → AER | May 3, 15:35 UTC | May 3, 16:05 UTC | 30m |
| 2026-04-26 | LLM485 | SLY → AER | Apr 26, 12:55 UTC | Apr 26, 17:55 UTC | 5h 0m |
| 2026-04-25 | LLM685 | NYM → AER | Apr 25, 14:15 UTC | Apr 25, 15:55 UTC | 1h 40m |
| 2026-04-24 | LLM385 | - | Apr 24, 14:50 UTC | Apr 25, 14:30 UTC | 23h 40m |
| 2026-04-24 | LLM185 | TJM → AER | Apr 24, 02:10 UTC | Apr 24, 15:55 UTC | 13h 45m |
| 2026-04-19 | LLM178 | - | Apr 19, 15:45 UTC | Apr 19, 15:55 UTC | 10m |
| 2026-04-18 | LLM477 | - | Apr 18, 11:30 UTC | Apr 18, 11:40 UTC | 10m |
| 2026-04-13 | LLM9502 | - | Apr 13, 15:55 UTC | Apr 13, 16:10 UTC | 15m |
| 2026-04-13 | LLM9502 | - | Apr 13, 14:00 UTC | Apr 13, 16:10 UTC | 2h 10m |
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-73690 page for operator, model, and routing details .