sensors Mode-S transponder
151E83
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73347 · BOEING 777-200
- Hex
- 151E83
- Octal
- 05217203
- Decimal
- 1,384,067
- Country
- RU
- Tail
- RA-73347
- Type
- B772
- Flights observed
- 32
- Distinct callsigns
- 11
- Country
- RU
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 151E83 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 |
|---|---|---|---|
| KAR3548 | - | 15 | 2026-05-23 |
| KAR3547 | - | 5 | 2026-05-12 |
| KAR3545 | - | 4 | 2026-05-29 |
| KAR3657 | Kar-Air | 1 | 2026-05-30 |
| KAR3478 | Kar-Air | 1 | 2026-05-17 |
| KAR3477 | Kar-Air | 1 | 2026-05-05 |
| KAR3210 | - | 1 | 2026-04-29 |
| KAR3209 | - | 1 | 2026-04-28 |
| KAR3004 | - | 1 | 2026-04-29 |
| KAR3002 | - | 1 | 2026-04-30 |
| KAR3001 | - | 1 | 2026-04-29 |
Recent flights last 32
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | KAR3657 | OVB → CXR | May 30, 00:30 UTC | May 30, 00:55 UTC | 25m |
| 2026-05-29 | KAR3545 | - | May 29, 03:35 UTC | May 29, 20:40 UTC | 17h 5m |
| 2026-05-23 | KAR3548 | - | May 23, 11:00 UTC | May 23, 19:15 UTC | 8h 15m |
| 2026-05-17 | KAR3478 | HKT → SVO | May 17, 03:40 UTC | May 17, 19:10 UTC | 15h 30m |
| 2026-05-13 | KAR3548 | - | May 13, 22:50 UTC | May 14, 01:05 UTC | 2h 15m |
| 2026-05-12 | KAR3547 | - | May 12, 18:20 UTC | May 12, 22:15 UTC | 3h 55m |
| 2026-05-05 | KAR3477 | SVO → HKT | May 5, 02:50 UTC | May 5, 18:05 UTC | 15h 15m |
| 2026-05-03 | KAR3548 | - | May 3, 17:40 UTC | May 3, 22:00 UTC | 4h 20m |
| 2026-05-02 | KAR3547 | - | May 2, 17:00 UTC | May 2, 17:20 UTC | 20m |
| 2026-04-30 | KAR3002 | - | Apr 30, 07:05 UTC | Apr 30, 08:55 UTC | 1h 50m |
| 2026-04-29 | KAR3210 | - | Apr 29, 18:05 UTC | Apr 30, 04:50 UTC | 10h 44m |
| 2026-04-29 | KAR3001 | - | Apr 29, 14:50 UTC | Apr 29, 16:20 UTC | 1h 30m |
| 2026-04-29 | KAR3004 | - | Apr 29, 05:00 UTC | Apr 29, 06:39 UTC | 1h 40m |
| 2026-04-28 | KAR3209 | - | Apr 28, 18:15 UTC | Apr 29, 03:00 UTC | 8h 45m |
| 2026-04-23 | KAR3548 | - | Apr 23, 17:35 UTC | Apr 24, 02:00 UTC | 8h 25m |
| 2026-04-22 | KAR3547 | - | Apr 22, 13:10 UTC | Apr 22, 16:25 UTC | 3h 15m |
| 2026-04-21 | KAR3548 | - | Apr 21, 17:55 UTC | Apr 21, 22:15 UTC | 4h 20m |
| 2026-04-20 | KAR3547 | - | Apr 20, 17:55 UTC | Apr 20, 18:10 UTC | 15m |
| 2026-04-17 | KAR3548 | - | Apr 17, 21:25 UTC | Apr 17, 21:45 UTC | 20m |
| 2026-04-17 | KAR3548 | - | Apr 17, 19:25 UTC | Apr 17, 21:20 UTC | 1h 55m |
| 2026-04-17 | KAR3548 | - | Apr 17, 17:50 UTC | Apr 17, 19:20 UTC | 1h 30m |
| 2026-04-17 | KAR3545 | - | Apr 17, 01:20 UTC | Apr 17, 01:40 UTC | 20m |
| 2026-04-16 | KAR3545 | - | Apr 16, 23:20 UTC | Apr 17, 01:15 UTC | 1h 55m |
| 2026-04-16 | KAR3545 | - | Apr 16, 22:15 UTC | Apr 16, 23:10 UTC | 55m |
| 2026-04-14 | KAR3548 | - | Apr 14, 20:55 UTC | Apr 14, 22:15 UTC | 1h 20m |
| 2026-04-14 | KAR3548 | - | Apr 14, 18:55 UTC | Apr 14, 20:50 UTC | 1h 55m |
| 2026-04-14 | KAR3548 | - | Apr 14, 17:50 UTC | Apr 14, 18:45 UTC | 55m |
| 2026-04-13 | KAR3547 | - | Apr 13, 20:45 UTC | Apr 13, 21:05 UTC | 20m |
| 2026-04-13 | KAR3548 | - | Apr 13, 13:30 UTC | Apr 13, 13:50 UTC | 20m |
| 2026-04-13 | KAR3548 | - | Apr 13, 08:20 UTC | Apr 13, 09:40 UTC | 1h 20m |
| 2026-04-13 | KAR3548 | - | Apr 13, 07:55 UTC | Apr 13, 09:40 UTC | 1h 45m |
| 2026-04-13 | KAR3548 | - | Apr 13, 05:20 UTC | Apr 13, 08:15 UTC | 2h 55m |
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-73347 page for operator, model, and routing details .