sensors Mode-S transponder
151E40
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73280 · BOEING 777-300
- Hex
- 151E40
- Octal
- 05217100
- Decimal
- 1,384,000
- Country
- RU
- Tail
- RA-73280
- Type
- B773
- Flights observed
- 26
- Distinct callsigns
- 7
- Country
- RU
- Last broadcast
- 19h ago
Last known position
Country allocation
The ICAO 24-bit address 151E40 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 7 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| SDM6256 | Rossiya - Russian Airlines | 7 | 2026-05-10 |
| SDM6288 | Rossiya - Russian Airlines | 6 | 2026-05-29 |
| SDM6280 | Rossiya - Russian Airlines | 5 | 2026-05-28 |
| SDM6282 | Rossiya - Russian Airlines | 4 | 2026-05-23 |
| SDM6298 | Rossiya - Russian Airlines | 2 | 2026-05-26 |
| SDM6866 | Rossiya - Russian Airlines | 1 | 2026-04-29 |
| SDM6284 | Rossiya - Russian Airlines | 1 | 2026-05-04 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | SDM6288 | KHV → SVO | May 29, 05:20 UTC | May 29, 05:45 UTC | 25m |
| 2026-05-28 | SDM6280 | VVO → SVO | May 28, 08:20 UTC | May 29, 05:45 UTC | 21h 25m |
| 2026-05-26 | SDM6298 | KHV → SVO | May 26, 05:40 UTC | May 26, 05:54 UTC | 15m |
| 2026-05-25 | SDM6298 | KHV → SVO | May 25, 06:50 UTC | May 26, 05:54 UTC | 23h 4m |
| 2026-05-23 | SDM6282 | VVO → SVO | May 23, 09:45 UTC | May 23, 10:10 UTC | 25m |
| 2026-05-21 | SDM6280 | VVO → SVO | May 21, 08:25 UTC | May 21, 08:40 UTC | 15m |
| 2026-05-20 | SDM6288 | KHV → SVO | May 20, 11:30 UTC | May 21, 08:40 UTC | 21h 10m |
| 2026-05-19 | SDM6288 | KHV → SVO | May 19, 22:15 UTC | May 20, 11:55 UTC | 13h 41m |
| 2026-05-16 | SDM6282 | VVO → SVO | May 16, 10:16 UTC | May 16, 10:40 UTC | 25m |
| 2026-05-11 | SDM6288 | KHV → SVO | May 11, 11:30 UTC | May 11, 11:40 UTC | 10m |
| 2026-05-10 | SDM6256 | BQS → SVO | May 10, 08:35 UTC | May 10, 08:50 UTC | 15m |
| 2026-05-08 | SDM6256 | BQS → SVO | May 8, 10:19 UTC | May 8, 11:05 UTC | 45m |
| 2026-05-04 | SDM6284 | UUS → SVO | May 4, 06:55 UTC | May 4, 07:20 UTC | 25m |
| 2026-05-03 | SDM6280 | VVO → SVO | May 3, 08:50 UTC | May 4, 07:20 UTC | 22h 30m |
| 2026-05-02 | SDM6280 | VVO → SVO | May 2, 10:05 UTC | May 3, 09:20 UTC | 23h 14m |
| 2026-05-02 | SDM6282 | VVO → SVO | May 2, 09:55 UTC | May 2, 10:20 UTC | 25m |
| 2026-05-01 | SDM6256 | BQS → SVO | May 1, 10:15 UTC | May 2, 10:00 UTC | 23h 45m |
| 2026-04-29 | SDM6866 | DYR → SVO | Apr 29, 12:05 UTC | Apr 30, 09:35 UTC | 21h 29m |
| 2026-04-29 | SDM6288 | KHV → SVO | Apr 29, 11:35 UTC | Apr 30, 09:35 UTC | 21h 59m |
| 2026-04-25 | SDM6282 | VVO → SVO | Apr 25, 10:20 UTC | Apr 25, 10:40 UTC | 20m |
| 2026-04-24 | SDM6256 | BQS → SVO | Apr 24, 10:20 UTC | Apr 24, 10:35 UTC | 15m |
| 2026-04-21 | SDM6256 | BQS → SVO | Apr 21, 10:30 UTC | Apr 21, 10:50 UTC | 20m |
| 2026-04-19 | SDM6280 | VVO → SVO | Apr 19, 08:40 UTC | Apr 19, 08:50 UTC | 10m |
| 2026-04-17 | SDM6256 | BQS → SVO | Apr 17, 10:20 UTC | Apr 17, 10:45 UTC | 25m |
| 2026-04-15 | SDM6288 | KHV → SVO | Apr 15, 11:25 UTC | Apr 15, 11:40 UTC | 15m |
| 2026-04-14 | SDM6256 | BQS → SVO | Apr 14, 10:50 UTC | Apr 14, 11:20 UTC | 30m |
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-73280 page for operator, model, and routing details .