sensors Mode-S transponder
151E26
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73254 · BOEING 737-800
- Hex
- 151E26
- Octal
- 05217046
- Decimal
- 1,383,974
- Country
- RU
- Tail
- RA-73254
- Type
- B738
- Flights observed
- 49
- Distinct callsigns
- 20
- Country
- RU
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 151E26 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 |
|---|---|---|---|
| TYA4552 | - | 6 | 2026-05-18 |
| TYA915 | NordStar | 3 | 2026-05-17 |
| TYA4553 | - | 3 | 2026-05-18 |
| TYA3802 | - | 3 | 2026-05-23 |
| TYA104 | NordStar | 3 | 2026-05-09 |
| TYA102 | NordStar | 3 | 2026-05-14 |
| TYA952 | NordStar | 2 | 2026-05-21 |
| TYA910 | NordStar | 2 | 2026-05-19 |
| TYA4554 | - | 2 | 2026-04-18 |
| TYA4551 | - | 2 | 2026-04-16 |
| TYA401 | NordStar | 2 | 2026-05-13 |
| TYA105 | NordStar | 2 | 2026-05-21 |
| TYA9505 | NordStar | 1 | 2026-06-01 |
| TYA916 | - | 1 | 2026-04-13 |
| TYA911 | NordStar | 1 | 2026-05-22 |
| TYA4525 | NordStar | 1 | 2026-04-26 |
| TYA4520 | NordStar | 1 | 2026-04-24 |
| TYA4493 | - | 1 | 2026-04-13 |
| TYA4410 | NordStar | 1 | 2026-05-16 |
| TYA4400 | NordStar | 1 | 2026-05-03 |
Recent flights last 49
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-01 | TYA9505 | MMK → UFA | Jun 1, 19:55 UTC | Jun 1, 22:45 UTC | 2h 50m |
| 2026-06-01 | TYA410 | NSK → DME | Jun 1, 02:35 UTC | Jun 1, 22:45 UTC | 20h 10m |
| 2026-05-30 | TYA322 | AER → KJA | May 30, 20:25 UTC | May 30, 21:05 UTC | 40m |
| 2026-05-30 | TYA321 | KJA → AER | May 30, 09:15 UTC | May 30, 14:45 UTC | 5h 30m |
| 2026-05-27 | TYA111 | DME → NSK | May 27, 22:35 UTC | May 27, 22:50 UTC | 15m |
| 2026-05-23 | TYA3802 | - | May 23, 21:35 UTC | May 24, 15:35 UTC | 18h 0m |
| 2026-05-23 | TYA3802 | - | May 23, 20:55 UTC | May 24, 15:35 UTC | 18h 40m |
| 2026-05-23 | TYA3802 | - | May 23, 08:25 UTC | May 24, 03:30 UTC | 19h 5m |
| 2026-05-22 | TYA911 | NSK → UFA | May 22, 11:00 UTC | May 23, 08:25 UTC | 21h 25m |
| 2026-05-21 | TYA952 | VOG → SVX | May 21, 16:40 UTC | May 22, 11:10 UTC | 18h 30m |
| 2026-05-21 | TYA952 | VOG → SVX | May 21, 12:15 UTC | May 22, 11:10 UTC | 22h 55m |
| 2026-05-21 | TYA105 | DME → NSK | May 21, 00:55 UTC | May 21, 16:55 UTC | 16h 0m |
| 2026-05-20 | TYA105 | DME → NSK | May 20, 05:35 UTC | May 21, 01:30 UTC | 19h 55m |
| 2026-05-19 | TYA910 | KUF → TJM | May 19, 15:45 UTC | May 20, 06:05 UTC | 14h 21m |
| 2026-05-19 | TYA910 | KUF → TJM | May 19, 06:40 UTC | May 19, 21:15 UTC | 14h 35m |
| 2026-05-18 | TYA4552 | - | May 18, 23:50 UTC | May 19, 00:20 UTC | 30m |
| 2026-05-18 | TYA4553 | - | May 18, 00:50 UTC | May 18, 01:15 UTC | 25m |
| 2026-05-17 | TYA915 | NSK → OVB | May 17, 06:20 UTC | May 17, 06:45 UTC | 25m |
| 2026-05-16 | TYA4410 | KJA → UFA | May 16, 03:20 UTC | May 16, 04:10 UTC | 50m |
| 2026-05-14 | TYA102 | NSK → DME | May 14, 11:30 UTC | May 15, 03:15 UTC | 15h 45m |
| 2026-05-13 | TYA401 | DME → NSK | May 13, 14:15 UTC | May 14, 11:30 UTC | 21h 15m |
| 2026-05-13 | TYA412 | NSK → AER | May 13, 09:45 UTC | May 13, 14:25 UTC | 4h 40m |
| 2026-05-09 | TYA104 | NSK → DME | May 9, 12:50 UTC | May 10, 06:35 UTC | 17h 45m |
| 2026-05-03 | TYA4400 | DME → UFA | May 3, 01:45 UTC | May 3, 14:55 UTC | 13h 9m |
| 2026-05-02 | TYA110 | NSK → DME | May 2, 15:10 UTC | May 2, 15:40 UTC | 30m |
| 2026-05-02 | TYA102 | NSK → DME | May 2, 02:30 UTC | May 2, 03:55 UTC | 1h 25m |
| 2026-05-01 | TYA102 | NSK → DME | May 1, 05:50 UTC | May 2, 03:55 UTC | 22h 5m |
| 2026-05-01 | TYA104 | NSK → DME | May 1, 05:00 UTC | May 2, 03:30 UTC | 22h 30m |
| 2026-04-29 | TYA401 | DME → NSK | Apr 29, 21:20 UTC | Apr 29, 23:15 UTC | 1h 54m |
| 2026-04-27 | TYA406 | NSK → LED | Apr 27, 12:15 UTC | Apr 28, 06:15 UTC | 18h 0m |
| 2026-04-26 | TYA4525 | OVB → KJA | Apr 26, 03:35 UTC | Apr 26, 04:15 UTC | 40m |
| 2026-04-25 | TYA4553 | - | Apr 25, 16:00 UTC | Apr 26, 01:00 UTC | 9h 0m |
| 2026-04-24 | TYA4552 | - | Apr 24, 15:35 UTC | Apr 25, 01:25 UTC | 9h 50m |
| 2026-04-24 | TYA4520 | KJA → OVB | Apr 24, 12:35 UTC | Apr 24, 13:15 UTC | 40m |
| 2026-04-20 | TYA103 | DME → NSK | Apr 20, 22:25 UTC | Apr 21, 14:45 UTC | 16h 20m |
| 2026-04-19 | TYA104 | NSK → DME | Apr 19, 21:50 UTC | Apr 20, 05:50 UTC | 8h 0m |
| 2026-04-18 | TYA915 | NSK → OVB | Apr 18, 11:35 UTC | Apr 19, 06:50 UTC | 19h 15m |
| 2026-04-18 | TYA915 | NSK → OVB | Apr 18, 11:20 UTC | Apr 19, 06:50 UTC | 19h 30m |
| 2026-04-18 | TYA4554 | - | Apr 18, 08:45 UTC | Apr 18, 09:20 UTC | 35m |
| 2026-04-18 | TYA4554 | - | Apr 18, 00:20 UTC | Apr 18, 09:25 UTC | 9h 5m |
| 2026-04-17 | TYA4552 | - | Apr 17, 00:15 UTC | Apr 17, 00:55 UTC | 40m |
| 2026-04-16 | TYA4551 | - | Apr 16, 16:00 UTC | Apr 16, 16:30 UTC | 30m |
| 2026-04-15 | TYA4552 | - | Apr 15, 00:55 UTC | Apr 15, 01:10 UTC | 15m |
| 2026-04-15 | TYA4552 | - | Apr 15, 00:35 UTC | Apr 15, 00:50 UTC | 15m |
| 2026-04-14 | TYA4551 | - | Apr 14, 15:55 UTC | Apr 14, 16:30 UTC | 35m |
| 2026-04-13 | TYA4553 | - | Apr 13, 16:30 UTC | Apr 13, 17:00 UTC | 30m |
| 2026-04-13 | TYA4493 | - | Apr 13, 09:05 UTC | Apr 13, 09:30 UTC | 25m |
| 2026-04-13 | TYA916 | - | Apr 13, 03:35 UTC | Apr 13, 04:00 UTC | 25m |
| 2026-04-13 | TYA4552 | - | Apr 13, 00:35 UTC | Apr 13, 01:20 UTC | 45m |
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-73254 page for operator, model, and routing details .