sensors Mode-S transponder
155BF9
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-89081 · SUKHOI Superjet 100-95
- Hex
- 155BF9
- Octal
- 05255771
- Decimal
- 1,399,801
- Country
- RU
- Tail
- RA-89081
- Type
- SU95
- Flights observed
- 31
- Distinct callsigns
- 16
- Country
- RU
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 155BF9 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 |
|---|---|---|---|
| LLM855 | - | 10 | 2026-06-21 |
| LLM850 | Yamal Airlines | 4 | 2026-05-17 |
| LLM843 | Yamal Airlines | 3 | 2026-06-06 |
| LLM174 | Yamal Airlines | 2 | 2026-04-16 |
| LLM9717 | - | 1 | 2026-07-04 |
| LLM9704 | - | 1 | 2026-04-28 |
| LLM945 | Yamal Airlines | 1 | 2026-04-19 |
| LLM878 | Yamal Airlines | 1 | 2026-05-04 |
| LLM877 | - | 1 | 2026-07-21 |
| LLM856 | Yamal Airlines | 1 | 2026-06-24 |
| LLM845 | - | 1 | 2026-06-24 |
| LLM677 | Yamal Airlines | 1 | 2026-06-22 |
| LLM577 | Yamal Airlines | 1 | 2026-05-18 |
| LLM438 | Yamal Airlines | 1 | 2026-07-25 |
| LLM31 | - | 1 | 2026-07-17 |
| LLM247 | Yamal Airlines | 1 | 2026-05-13 |
Recent flights last 31
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | LLM438 | UFA → SLY | Jul 25, 13:10 UTC | Jul 25, 13:20 UTC | 10m |
| 2026-07-21 | LLM877 | - | Jul 21, 13:00 UTC | Jul 21, 13:30 UTC | 30m |
| 2026-07-17 | LLM31 | - | Jul 17, 13:15 UTC | Jul 17, 13:45 UTC | 30m |
| 2026-07-04 | LLM9717 | - | Jul 4, 02:10 UTC | Jul 4, 05:40 UTC | 3h 30m |
| 2026-06-24 | LLM856 | LED → SLY | Jun 24, 10:04 UTC | Jun 24, 10:30 UTC | 25m |
| 2026-06-24 | LLM845 | - | Jun 24, 06:15 UTC | Jun 24, 06:35 UTC | 20m |
| 2026-06-22 | LLM677 | NYM → MRV | Jun 22, 04:44 UTC | Jun 22, 17:29 UTC | 12h 45m |
| 2026-06-21 | LLM855 | - | Jun 21, 14:15 UTC | Jun 22, 05:10 UTC | 14h 55m |
| 2026-06-21 | LLM855 | - | Jun 21, 06:19 UTC | Jun 22, 05:10 UTC | 22h 50m |
| 2026-06-21 | LLM855 | - | Jun 21, 06:14 UTC | Jun 21, 14:50 UTC | 8h 35m |
| 2026-06-19 | LLM855 | - | Jun 19, 14:15 UTC | Jun 20, 05:24 UTC | 15h 10m |
| 2026-06-19 | LLM855 | - | Jun 19, 06:20 UTC | Jun 20, 05:24 UTC | 23h 5m |
| 2026-06-19 | LLM855 | - | Jun 19, 06:10 UTC | Jun 19, 16:34 UTC | 10h 25m |
| 2026-06-17 | LLM855 | SLY → LED | Jun 17, 14:30 UTC | Jun 17, 15:05 UTC | 35m |
| 2026-06-12 | LLM855 | SLY → LED | Jun 12, 14:10 UTC | Jun 12, 14:35 UTC | 25m |
| 2026-06-07 | LLM855 | SLY → LED | Jun 7, 14:15 UTC | Jun 7, 14:45 UTC | 30m |
| 2026-06-06 | LLM843 | SLY → KZN | Jun 6, 06:20 UTC | Jun 6, 08:05 UTC | 1h 45m |
| 2026-05-18 | LLM577 | NOJ → MRV | May 18, 10:50 UTC | May 18, 11:45 UTC | 55m |
| 2026-05-17 | LLM850 | NOJ → LED | May 17, 14:20 UTC | May 18, 11:45 UTC | 21h 25m |
| 2026-05-17 | LLM850 | NOJ → LED | May 17, 13:40 UTC | May 18, 11:45 UTC | 22h 5m |
| 2026-05-15 | LLM850 | NOJ → LED | May 15, 14:05 UTC | May 15, 15:35 UTC | 1h 29m |
| 2026-05-13 | LLM247 | UFA → NYM | May 13, 10:25 UTC | May 13, 14:51 UTC | 4h 25m |
| 2026-05-04 | LLM878 | LED → NYM | May 4, 04:50 UTC | May 4, 10:50 UTC | 6h 0m |
| 2026-05-03 | LLM850 | NOJ → LED | May 3, 14:35 UTC | May 4, 10:50 UTC | 20h 15m |
| 2026-05-01 | LLM855 | SLY → LED | May 1, 14:40 UTC | May 1, 16:15 UTC | 1h 35m |
| 2026-04-28 | LLM9704 | - | Apr 28, 14:15 UTC | Apr 28, 14:25 UTC | 10m |
| 2026-04-25 | LLM843 | SLY → KZN | Apr 25, 12:30 UTC | Apr 26, 07:05 UTC | 18h 35m |
| 2026-04-25 | LLM843 | SLY → KZN | Apr 25, 11:20 UTC | Apr 26, 07:05 UTC | 19h 45m |
| 2026-04-19 | LLM945 | NUX → LED | Apr 19, 05:55 UTC | Apr 19, 14:40 UTC | 8h 45m |
| 2026-04-16 | LLM174 | NYM → DME | Apr 16, 07:09 UTC | Apr 16, 08:09 UTC | 1h 0m |
| 2026-04-16 | LLM174 | NYM → DME | Apr 16, 06:49 UTC | Apr 16, 07:05 UTC | 15m |
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-89081 page for operator, model, and routing details .