sensors Mode-S transponder
151E88
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73352 · BOEING 757-200
- Hex
- 151E88
- Octal
- 05217210
- Decimal
- 1,384,072
- Country
- RU
- Tail
- RA-73352
- Type
- B752
- Flights observed
- 30
- Distinct callsigns
- 17
- Country
- RU
- Last broadcast
- 24d ago
Last known position
Country allocation
The ICAO 24-bit address 151E88 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 17 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| TUP9640 | - | 7 | 2026-04-29 |
| TUP9639 | - | 3 | 2026-04-25 |
| TUP6416 | - | 3 | 2026-04-30 |
| TUP9644 | - | 2 | 2026-05-06 |
| TUP9622 | - | 2 | 2026-04-27 |
| TUP9616 | - | 2 | 2026-05-06 |
| TUP9668 | - | 1 | 2026-04-28 |
| TUP9667 | - | 1 | 2026-04-28 |
| TUP9650 | - | 1 | 2026-05-09 |
| TUP9649 | - | 1 | 2026-04-18 |
| TUP9642 | - | 1 | 2026-04-22 |
| TUP9635 | Aviastar-TU | 1 | 2026-04-22 |
| TUP9632 | - | 1 | 2026-05-03 |
| TUP9630 | - | 1 | 2026-05-01 |
| TUP9618 | - | 1 | 2026-05-08 |
| TUP9617 | - | 1 | 2026-04-15 |
| TUP9612 | - | 1 | 2026-05-05 |
Recent flights last 30
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-09 | TUP9650 | - | May 9, 14:05 UTC | May 9, 14:45 UTC | 40m |
| 2026-05-08 | TUP9618 | - | May 8, 13:05 UTC | May 8, 14:50 UTC | 1h 45m |
| 2026-05-06 | TUP9644 | - | May 6, 18:50 UTC | May 7, 11:45 UTC | 16h 55m |
| 2026-05-06 | TUP9644 | - | May 6, 15:35 UTC | May 7, 11:45 UTC | 20h 10m |
| 2026-05-06 | TUP9616 | - | May 6, 12:20 UTC | May 6, 12:55 UTC | 35m |
| 2026-05-06 | TUP9616 | - | May 6, 00:05 UTC | May 6, 11:40 UTC | 11h 35m |
| 2026-05-05 | TUP9612 | - | May 5, 14:15 UTC | May 5, 16:00 UTC | 1h 45m |
| 2026-05-03 | TUP9632 | - | May 3, 20:25 UTC | May 4, 13:55 UTC | 17h 30m |
| 2026-05-01 | TUP9630 | - | May 1, 21:55 UTC | May 2, 13:15 UTC | 15h 20m |
| 2026-04-30 | TUP6416 | - | Apr 30, 18:55 UTC | Apr 30, 19:25 UTC | 30m |
| 2026-04-30 | TUP6416 | - | Apr 30, 00:45 UTC | Apr 30, 18:20 UTC | 17h 35m |
| 2026-04-29 | TUP6416 | - | Apr 29, 23:15 UTC | Apr 30, 18:20 UTC | 19h 5m |
| 2026-04-29 | TUP9640 | - | Apr 29, 13:45 UTC | Apr 29, 16:35 UTC | 2h 50m |
| 2026-04-28 | TUP9640 | - | Apr 28, 18:05 UTC | Apr 29, 16:35 UTC | 22h 30m |
| 2026-04-28 | TUP9640 | - | Apr 28, 17:50 UTC | Apr 29, 16:00 UTC | 22h 11m |
| 2026-04-28 | TUP9668 | - | Apr 28, 13:05 UTC | Apr 28, 15:35 UTC | 2h 30m |
| 2026-04-28 | TUP9667 | - | Apr 28, 04:35 UTC | Apr 28, 06:35 UTC | 2h 0m |
| 2026-04-27 | TUP9622 | - | Apr 27, 13:10 UTC | Apr 27, 14:00 UTC | 50m |
| 2026-04-25 | TUP9639 | - | Apr 25, 17:15 UTC | Apr 25, 20:55 UTC | 3h 40m |
| 2026-04-24 | TUP9640 | - | Apr 24, 14:55 UTC | Apr 24, 16:00 UTC | 1h 5m |
| 2026-04-23 | TUP9640 | - | Apr 23, 18:15 UTC | Apr 24, 16:00 UTC | 21h 45m |
| 2026-04-22 | TUP9635 | SVO → KJA | Apr 22, 17:05 UTC | Apr 22, 17:15 UTC | 10m |
| 2026-04-22 | TUP9642 | - | Apr 22, 10:20 UTC | Apr 22, 12:45 UTC | 2h 25m |
| 2026-04-20 | TUP9639 | - | Apr 20, 17:10 UTC | Apr 20, 20:30 UTC | 3h 20m |
| 2026-04-20 | TUP9622 | - | Apr 20, 07:00 UTC | Apr 20, 09:40 UTC | 2h 40m |
| 2026-04-18 | TUP9649 | - | Apr 18, 16:30 UTC | Apr 18, 16:40 UTC | 10m |
| 2026-04-17 | TUP9640 | - | Apr 17, 15:20 UTC | Apr 17, 15:40 UTC | 20m |
| 2026-04-17 | TUP9640 | - | Apr 17, 14:05 UTC | Apr 17, 15:15 UTC | 1h 9m |
| 2026-04-16 | TUP9639 | - | Apr 16, 17:30 UTC | Apr 16, 17:44 UTC | 15m |
| 2026-04-15 | TUP9617 | - | Apr 15, 23:40 UTC | Apr 16, 00:50 UTC | 1h 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-73352 page for operator, model, and routing details .