sensors Mode-S transponder
151DE5
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73189 · BOEING 737-800
- Hex
- 151DE5
- Octal
- 05216745
- Decimal
- 1,383,909
- Country
- RU
- Tail
- RA-73189
- Type
- B738
- Flights observed
- 40
- Distinct callsigns
- 14
- Country
- RU
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 151DE5 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SDM6876 | Rossiya - Russian Airlines | 13 | 2026-06-02 |
| SDM6875 | Rossiya - Russian Airlines | 12 | 2026-06-01 |
| SDM6726 | - | 3 | 2026-05-19 |
| SDM6623 | Rossiya - Russian Airlines | 2 | 2026-05-30 |
| SDM6987 | Rossiya - Russian Airlines | 1 | 2026-05-05 |
| SDM6986 | Rossiya - Russian Airlines | 1 | 2026-04-19 |
| SDM6985 | Rossiya - Russian Airlines | 1 | 2026-04-18 |
| SDM6896 | Rossiya - Russian Airlines | 1 | 2026-04-26 |
| SDM6895 | Rossiya - Russian Airlines | 1 | 2026-05-24 |
| SDM6821 | Rossiya - Russian Airlines | 1 | 2026-04-19 |
| SDM6783 | Rossiya - Russian Airlines | 1 | 2026-05-11 |
| SDM6725 | - | 1 | 2026-05-03 |
| SDM6622 | Rossiya - Russian Airlines | 1 | 2026-04-29 |
| SDM6621 | Rossiya - Russian Airlines | 1 | 2026-04-29 |
Recent flights last 40
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | SDM6876 | AER → KJA | Jun 2, 20:45 UTC | Jun 3, 10:45 UTC | 14h 0m |
| 2026-06-02 | SDM6876 | AER → KJA | Jun 2, 09:55 UTC | Jun 2, 21:55 UTC | 12h 0m |
| 2026-06-02 | SDM6876 | AER → KJA | Jun 2, 00:15 UTC | Jun 2, 21:55 UTC | 21h 40m |
| 2026-06-01 | SDM6875 | KJA → AER | Jun 1, 21:25 UTC | Jun 2, 21:15 UTC | 23h 50m |
| 2026-06-01 | SDM6875 | KJA → AER | Jun 1, 21:05 UTC | Jun 2, 10:35 UTC | 13h 30m |
| 2026-05-31 | SDM6876 | AER → KJA | May 31, 21:20 UTC | Jun 1, 21:15 UTC | 23h 55m |
| 2026-05-31 | SDM6875 | KJA → AER | May 31, 10:00 UTC | May 31, 21:50 UTC | 11h 50m |
| 2026-05-30 | SDM6875 | KJA → AER | May 30, 22:35 UTC | May 31, 21:15 UTC | 22h 40m |
| 2026-05-30 | SDM6623 | KJA → SYX | May 30, 19:55 UTC | May 30, 20:15 UTC | 20m |
| 2026-05-29 | SDM6876 | AER → KJA | May 29, 22:00 UTC | May 30, 20:15 UTC | 22h 15m |
| 2026-05-29 | SDM6876 | AER → KJA | May 29, 11:20 UTC | May 29, 22:40 UTC | 11h 20m |
| 2026-05-28 | SDM6875 | KJA → AER | May 28, 22:35 UTC | May 29, 11:40 UTC | 13h 5m |
| 2026-05-28 | SDM6623 | KJA → SYX | May 28, 19:35 UTC | May 28, 19:55 UTC | 20m |
| 2026-05-26 | SDM6875 | KJA → AER | May 26, 10:05 UTC | May 26, 21:44 UTC | 11h 40m |
| 2026-05-24 | SDM6895 | KJA → FRU | May 24, 05:45 UTC | May 24, 21:35 UTC | 15h 50m |
| 2026-05-22 | SDM6876 | AER → KJA | May 22, 11:15 UTC | May 22, 23:15 UTC | 12h 0m |
| 2026-05-19 | SDM6726 | - | May 19, 15:15 UTC | May 19, 23:10 UTC | 7h 55m |
| 2026-05-17 | SDM6875 | KJA → AER | May 17, 09:55 UTC | May 17, 22:15 UTC | 12h 20m |
| 2026-05-15 | SDM6875 | KJA → AER | May 15, 10:55 UTC | May 15, 23:35 UTC | 12h 39m |
| 2026-05-11 | SDM6783 | KJA → OSS | May 11, 14:15 UTC | May 11, 20:50 UTC | 6h 35m |
| 2026-05-09 | SDM6876 | AER → KJA | May 9, 22:34 UTC | May 9, 23:05 UTC | 30m |
| 2026-05-09 | SDM6875 | KJA → AER | May 9, 03:10 UTC | May 9, 16:00 UTC | 12h 50m |
| 2026-05-08 | SDM6875 | KJA → AER | May 8, 15:50 UTC | May 9, 15:15 UTC | 23h 25m |
| 2026-05-05 | SDM6987 | KJA → MRV | May 5, 13:45 UTC | May 6, 00:25 UTC | 10h 40m |
| 2026-05-04 | SDM6876 | AER → KJA | May 4, 19:45 UTC | May 5, 14:25 UTC | 18h 40m |
| 2026-05-03 | SDM6726 | - | May 3, 21:14 UTC | May 4, 15:05 UTC | 17h 50m |
| 2026-05-03 | SDM6726 | - | May 3, 15:20 UTC | May 4, 15:05 UTC | 23h 45m |
| 2026-05-03 | SDM6725 | - | May 3, 15:05 UTC | May 4, 10:50 UTC | 19h 45m |
| 2026-05-02 | SDM6876 | AER → KJA | May 2, 13:45 UTC | May 2, 14:45 UTC | 1h 0m |
| 2026-05-01 | SDM6875 | KJA → AER | May 1, 11:00 UTC | May 1, 17:00 UTC | 6h 0m |
| 2026-04-29 | SDM6622 | PKX → KJA | Apr 29, 20:25 UTC | Apr 29, 20:40 UTC | 15m |
| 2026-04-29 | SDM6621 | KJA → PKX | Apr 29, 18:00 UTC | Apr 29, 18:20 UTC | 20m |
| 2026-04-28 | SDM6876 | AER → KJA | Apr 28, 21:19 UTC | Apr 29, 16:30 UTC | 19h 11m |
| 2026-04-28 | SDM6876 | AER → KJA | Apr 28, 20:55 UTC | Apr 29, 16:30 UTC | 19h 36m |
| 2026-04-28 | SDM6876 | AER → KJA | Apr 28, 10:05 UTC | Apr 28, 21:45 UTC | 11h 40m |
| 2026-04-26 | SDM6896 | FRU → KJA | Apr 26, 06:00 UTC | Apr 26, 22:25 UTC | 16h 25m |
| 2026-04-21 | SDM6875 | KJA → AER | Apr 21, 10:15 UTC | Apr 21, 22:00 UTC | 11h 45m |
| 2026-04-19 | SDM6821 | KJA → TJM | Apr 19, 12:25 UTC | Apr 19, 21:40 UTC | 9h 15m |
| 2026-04-19 | SDM6986 | MRV → KJA | Apr 19, 08:55 UTC | Apr 19, 09:05 UTC | 10m |
| 2026-04-18 | SDM6985 | KJA → MRV | Apr 18, 21:45 UTC | Apr 19, 02:55 UTC | 5h 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-73189 page for operator, model, and routing details .