sensors Mode-S transponder
151E8C
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73356 · BOEING 757-200
- Hex
- 151E8C
- Octal
- 05217214
- Decimal
- 1,384,076
- Country
- RU
- Tail
- RA-73356
- Type
- B752
- Flights observed
- 50
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 151E8C 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 |
|---|---|---|---|
| TUP9681 | - | 4 | 2026-05-17 |
| TUP9646 | - | 4 | 2026-05-06 |
| TUP6452 | - | 4 | 2026-04-16 |
| TUP9650 | - | 3 | 2026-06-02 |
| TUP9644 | - | 3 | 2026-04-29 |
| TUP9632 | - | 3 | 2026-05-23 |
| TUP9631 | - | 3 | 2026-05-31 |
| TUP9626 | - | 3 | 2026-05-07 |
| TUP6482 | Aviastar-TU | 3 | 2026-05-28 |
| TUP9634 | - | 2 | 2026-04-27 |
| TUP9630 | - | 2 | 2026-04-29 |
| TUP9612 | - | 2 | 2026-05-13 |
| TUP9611 | - | 2 | 2026-05-26 |
| TUP6454 | - | 2 | 2026-05-30 |
| TUP6336 | - | 2 | 2026-04-13 |
| TUP9649 | - | 1 | 2026-04-24 |
| TUP9642 | - | 1 | 2026-05-05 |
| TUP9639 | - | 1 | 2026-05-02 |
| TUP9633 | - | 1 | 2026-04-17 |
| TUP9625 | - | 1 | 2026-04-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | TUP9650 | - | Jun 2, 14:25 UTC | Jun 2, 17:20 UTC | 2h 55m |
| 2026-06-01 | TUP9650 | - | Jun 1, 19:35 UTC | Jun 2, 17:20 UTC | 21h 45m |
| 2026-05-31 | TUP9631 | - | May 31, 17:50 UTC | May 31, 18:00 UTC | 10m |
| 2026-05-30 | TUP9631 | - | May 30, 21:05 UTC | May 31, 18:00 UTC | 20h 55m |
| 2026-05-30 | TUP6454 | - | May 30, 20:35 UTC | May 31, 18:00 UTC | 21h 25m |
| 2026-05-30 | TUP6454 | - | May 30, 17:25 UTC | May 30, 21:05 UTC | 3h 40m |
| 2026-05-28 | TUP6482 | NBC → NBC | May 28, 21:25 UTC | May 28, 21:35 UTC | 10m |
| 2026-05-28 | TUP6482 | NBC → NBC | May 28, 17:25 UTC | May 28, 20:35 UTC | 3h 10m |
| 2026-05-27 | TUP6482 | NBC → NBC | May 27, 23:05 UTC | May 28, 20:35 UTC | 21h 30m |
| 2026-05-26 | TUP9611 | - | May 26, 00:44 UTC | May 26, 01:10 UTC | 25m |
| 2026-05-25 | TUP9611 | SVO → SVO | May 25, 23:49 UTC | May 26, 00:09 UTC | 20m |
| 2026-05-23 | TUP9632 | - | May 23, 12:50 UTC | May 23, 13:20 UTC | 30m |
| 2026-05-22 | TUP9632 | - | May 22, 17:20 UTC | May 23, 13:20 UTC | 19h 59m |
| 2026-05-22 | TUP9631 | - | May 22, 16:35 UTC | May 23, 13:20 UTC | 20h 44m |
| 2026-05-22 | TUP9618 | - | May 22, 01:20 UTC | May 22, 10:35 UTC | 9h 15m |
| 2026-05-17 | TUP9681 | - | May 17, 18:25 UTC | May 18, 02:45 UTC | 8h 20m |
| 2026-05-13 | TUP9632 | - | May 13, 22:10 UTC | May 14, 14:15 UTC | 16h 5m |
| 2026-05-13 | TUP9612 | - | May 13, 08:40 UTC | May 13, 22:35 UTC | 13h 55m |
| 2026-05-13 | TUP9612 | - | May 13, 01:30 UTC | May 13, 22:35 UTC | 21h 5m |
| 2026-05-12 | TUP9650 | - | May 12, 13:25 UTC | May 13, 10:20 UTC | 20h 55m |
| 2026-05-11 | TUP9622 | - | May 11, 09:10 UTC | May 11, 20:45 UTC | 11h 35m |
| 2026-05-07 | TUP9626 | - | May 7, 10:10 UTC | May 7, 11:50 UTC | 1h 40m |
| 2026-05-06 | TUP9626 | - | May 6, 15:25 UTC | May 7, 11:50 UTC | 20h 25m |
| 2026-05-06 | TUP9646 | - | May 6, 13:40 UTC | May 7, 11:50 UTC | 22h 10m |
| 2026-05-05 | TUP9642 | - | May 5, 10:45 UTC | May 5, 12:20 UTC | 1h 35m |
| 2026-05-02 | TUP9639 | - | May 2, 17:05 UTC | May 2, 20:05 UTC | 3h 0m |
| 2026-04-29 | TUP9644 | - | Apr 29, 19:05 UTC | Apr 30, 13:35 UTC | 18h 29m |
| 2026-04-29 | TUP9644 | - | Apr 29, 18:45 UTC | Apr 30, 13:35 UTC | 18h 49m |
| 2026-04-29 | TUP9644 | - | Apr 29, 15:50 UTC | Apr 30, 13:35 UTC | 21h 44m |
| 2026-04-29 | TUP9630 | SVO → SVO | Apr 29, 12:45 UTC | Apr 29, 13:10 UTC | 25m |
| 2026-04-28 | TUP9630 | - | Apr 28, 20:55 UTC | Apr 29, 12:00 UTC | 15h 6m |
| 2026-04-27 | TUP9634 | - | Apr 27, 14:20 UTC | Apr 27, 22:10 UTC | 7h 50m |
| 2026-04-26 | TUP9634 | - | Apr 26, 17:05 UTC | Apr 27, 15:05 UTC | 22h 0m |
| 2026-04-24 | TUP9649 | - | Apr 24, 20:35 UTC | Apr 24, 21:00 UTC | 25m |
| 2026-04-22 | TUP9646 | - | Apr 22, 12:30 UTC | Apr 22, 21:40 UTC | 9h 10m |
| 2026-04-21 | TUP9646 | - | Apr 21, 19:10 UTC | Apr 22, 15:15 UTC | 20h 5m |
| 2026-04-21 | TUP9646 | - | Apr 21, 16:01 UTC | Apr 22, 15:00 UTC | 22h 59m |
| 2026-04-20 | TUP9626 | - | Apr 20, 21:25 UTC | Apr 21, 12:01 UTC | 14h 35m |
| 2026-04-19 | TUP9625 | - | Apr 19, 23:30 UTC | Apr 20, 22:45 UTC | 23h 15m |
| 2026-04-19 | TUP6420 | - | Apr 19, 17:35 UTC | Apr 19, 23:35 UTC | 6h 0m |
| 2026-04-17 | TUP9633 | - | Apr 17, 21:25 UTC | Apr 17, 21:50 UTC | 25m |
| 2026-04-16 | TUP6452 | - | Apr 16, 19:15 UTC | Apr 16, 19:30 UTC | 15m |
| 2026-04-16 | TUP6452 | - | Apr 16, 18:55 UTC | Apr 16, 19:10 UTC | 15m |
| 2026-04-16 | TUP6452 | - | Apr 16, 16:05 UTC | Apr 16, 16:50 UTC | 45m |
| 2026-04-16 | TUP6452 | - | Apr 16, 14:20 UTC | Apr 16, 14:40 UTC | 20m |
| 2026-04-16 | TUP9681 | - | Apr 16, 01:10 UTC | Apr 16, 01:40 UTC | 30m |
| 2026-04-15 | TUP9681 | - | Apr 15, 23:35 UTC | Apr 16, 01:05 UTC | 1h 30m |
| 2026-04-13 | TUP6336 | - | Apr 13, 17:25 UTC | Apr 13, 18:35 UTC | 1h 10m |
| 2026-04-13 | TUP6336 | - | Apr 13, 13:20 UTC | Apr 13, 15:35 UTC | 2h 15m |
| 2026-04-12 | TUP9681 | - | Apr 12, 23:55 UTC | Apr 13, 00:20 UTC | 25m |
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-73356 page for operator, model, and routing details .