sensors Mode-S transponder
155C53
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-89171 · SUKHOI Superjet 100-95
- Hex
- 155C53
- Octal
- 05256123
- Decimal
- 1,399,891
- Country
- RU
- Tail
- RA-89171
- Type
- SU95
- Flights observed
- 96
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 9h ago
Last known position
Country allocation
The ICAO 24-bit address 155C53 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SDM6346 | - | 5 | 2026-07-03 |
| SDM6330 | - | 5 | 2026-07-05 |
| SDM6329 | - | 5 | 2026-07-04 |
| SDM6322 | - | 5 | 2026-06-21 |
| SDM6321 | - | 5 | 2026-06-21 |
| SDM6324 | Rossiya - Russian Airlines | 4 | 2026-05-18 |
| SDM6323 | - | 4 | 2026-06-24 |
| SDM6301 | - | 4 | 2026-06-22 |
| SDM6037 | Rossiya - Russian Airlines | 4 | 2026-05-18 |
| SDM6448 | Rossiya - Russian Airlines | 3 | 2026-04-21 |
| SDM6446 | - | 3 | 2026-06-26 |
| SDM6381 | Rossiya - Russian Airlines | 3 | 2026-06-13 |
| SDM6345 | - | 3 | 2026-07-03 |
| SDM6344 | - | 3 | 2026-04-13 |
| SDM6588 | Rossiya - Russian Airlines | 2 | 2026-05-08 |
| SDM6447 | - | 2 | 2026-04-14 |
| SDM6442 | Rossiya - Russian Airlines | 2 | 2026-05-05 |
| SDM6360 | - | 2 | 2026-07-11 |
| SDM6342 | Rossiya - Russian Airlines | 2 | 2026-05-15 |
| SDM6328 | - | 2 | 2026-07-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | SDM6950 | - | Jul 13, 16:55 UTC | Jul 13, 17:20 UTC | 25m |
| 2026-07-13 | SDM6949 | - | Jul 13, 14:55 UTC | Jul 13, 15:25 UTC | 30m |
| 2026-07-11 | SDM6360 | - | Jul 11, 14:20 UTC | Jul 11, 16:20 UTC | 2h 0m |
| 2026-07-10 | SDM6360 | - | Jul 10, 17:00 UTC | Jul 11, 16:20 UTC | 23h 20m |
| 2026-07-06 | SDM6813 | - | Jul 6, 11:50 UTC | Jul 6, 12:15 UTC | 25m |
| 2026-07-06 | SDM6328 | - | Jul 6, 07:50 UTC | Jul 6, 09:00 UTC | 1h 10m |
| 2026-07-05 | SDM6330 | - | Jul 5, 17:10 UTC | Jul 5, 18:30 UTC | 1h 20m |
| 2026-07-04 | SDM6330 | - | Jul 4, 18:25 UTC | Jul 4, 19:40 UTC | 1h 15m |
| 2026-07-04 | SDM6329 | - | Jul 4, 15:50 UTC | Jul 4, 16:30 UTC | 40m |
| 2026-07-04 | SDM6005 | LED → LED | Jul 4, 10:15 UTC | Jul 4, 11:40 UTC | 1h 25m |
| 2026-07-03 | SDM6346 | - | Jul 3, 18:05 UTC | Jul 3, 18:25 UTC | 20m |
| 2026-07-03 | SDM6345 | - | Jul 3, 15:35 UTC | Jul 3, 15:50 UTC | 15m |
| 2026-07-02 | SDM6346 | - | Jul 2, 16:20 UTC | Jul 2, 16:40 UTC | 20m |
| 2026-07-02 | SDM6345 | - | Jul 2, 14:00 UTC | Jul 2, 14:20 UTC | 20m |
| 2026-06-26 | SDM6446 | - | Jun 26, 09:35 UTC | Jun 26, 12:44 UTC | 3h 10m |
| 2026-06-24 | SDM6323 | - | Jun 24, 06:35 UTC | Jun 24, 06:59 UTC | 25m |
| 2026-06-23 | SDM6326 | KGD → LED | Jun 23, 18:25 UTC | Jun 23, 19:39 UTC | 1h 15m |
| 2026-06-23 | SDM6325 | LED → KGD | Jun 23, 16:14 UTC | Jun 23, 16:54 UTC | 40m |
| 2026-06-23 | SDM6118 | - | Jun 23, 12:15 UTC | Jun 23, 12:25 UTC | 10m |
| 2026-06-22 | SDM6301 | LED → LED | Jun 22, 12:40 UTC | Jun 22, 13:44 UTC | 1h 5m |
| 2026-06-21 | SDM6330 | - | Jun 21, 17:24 UTC | Jun 21, 18:14 UTC | 50m |
| 2026-06-21 | SDM6329 | - | Jun 21, 14:30 UTC | Jun 21, 15:15 UTC | 45m |
| 2026-06-21 | SDM6322 | - | Jun 21, 11:40 UTC | Jun 21, 12:24 UTC | 45m |
| 2026-06-21 | SDM6321 | - | Jun 21, 08:49 UTC | Jun 21, 09:40 UTC | 50m |
| 2026-06-19 | SDM6414 | UFA → LED | Jun 19, 18:34 UTC | Jun 19, 18:44 UTC | 10m |
| 2026-06-17 | SDM6115 | LED → VOG | Jun 17, 13:20 UTC | Jun 17, 13:45 UTC | 25m |
| 2026-06-14 | SDM6223 | SVO → CEK | Jun 14, 04:15 UTC | Jun 14, 04:40 UTC | 25m |
| 2026-06-13 | SDM6381 | SVO → IJK | Jun 13, 04:20 UTC | Jun 13, 04:30 UTC | 10m |
| 2026-06-12 | SDM6381 | SVO → IJK | Jun 12, 08:50 UTC | Jun 12, 09:10 UTC | 20m |
| 2026-06-12 | SDM6381 | SVO → IJK | Jun 12, 04:45 UTC | Jun 12, 05:05 UTC | 20m |
| 2026-06-11 | SDM6241 | SVO → KZN | Jun 11, 17:50 UTC | Jun 11, 18:05 UTC | 15m |
| 2026-05-29 | SDM6117 | LED → VOG | May 29, 06:20 UTC | May 29, 07:30 UTC | 1h 10m |
| 2026-05-26 | SDM6330 | KGD → LED | May 26, 17:09 UTC | May 26, 18:19 UTC | 1h 10m |
| 2026-05-26 | SDM6329 | LED → KGD | May 26, 13:54 UTC | May 26, 15:20 UTC | 1h 25m |
| 2026-05-26 | SDM6322 | KGD → LED | May 26, 11:30 UTC | May 26, 12:35 UTC | 1h 5m |
| 2026-05-26 | SDM6321 | LED → KGD | May 26, 08:30 UTC | May 26, 09:55 UTC | 1h 25m |
| 2026-05-24 | SDM6418 | SVX → LED | May 24, 14:10 UTC | May 24, 15:30 UTC | 1h 20m |
| 2026-05-24 | SDM6417 | LED → SVX | May 24, 11:55 UTC | May 24, 12:45 UTC | 50m |
| 2026-05-18 | SDM6037 | LED → VKO | May 18, 13:15 UTC | May 18, 13:30 UTC | 15m |
| 2026-05-18 | SDM6324 | KGD → LED | May 18, 08:55 UTC | May 18, 09:55 UTC | 1h 0m |
| 2026-05-18 | SDM6323 | LED → KGD | May 18, 06:35 UTC | May 18, 07:15 UTC | 40m |
| 2026-05-17 | SDM6329 | LED → KGD | May 17, 14:40 UTC | May 17, 15:15 UTC | 35m |
| 2026-05-16 | SDM6037 | LED → VKO | May 16, 12:05 UTC | May 16, 12:25 UTC | 20m |
| 2026-05-15 | SDM6342 | MMK → LED | May 15, 07:05 UTC | May 15, 08:10 UTC | 1h 5m |
| 2026-05-12 | SDM6327 | LED → KGD | May 12, 20:40 UTC | May 12, 21:25 UTC | 45m |
| 2026-05-12 | SDM6330 | KGD → LED | May 12, 17:20 UTC | May 12, 18:15 UTC | 55m |
| 2026-05-12 | SDM6329 | LED → KGD | May 12, 14:45 UTC | May 12, 15:25 UTC | 40m |
| 2026-05-11 | SDM6320 | KGD → LED | May 11, 15:05 UTC | May 11, 15:50 UTC | 45m |
| 2026-05-11 | SDM6319 | LED → KGD | May 11, 12:20 UTC | May 11, 13:05 UTC | 45m |
| 2026-05-09 | SDM6107 | LED → GOJ | May 9, 14:55 UTC | May 9, 15:15 UTC | 20m |
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-89171 page for operator, model, and routing details .