sensors Mode-S transponder
151D79
ICAO 24-bit transponder address · allocated to Russia
Currently assigned to RA-73081 · BOEING 767-200
- Hex
- 151D79
- Octal
- 05216571
- Decimal
- 1,383,801
- Country
- RU
- Tail
- RA-73081
- Type
- B762
- Flights observed
- 79
- Distinct callsigns
- 7
- Country
- RU
- Last broadcast
- Jul 25, 01:35 UTC
Last known position
Country allocation
The ICAO 24-bit address 151D79 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 |
|---|---|---|---|
| UTA802 | - | 44 | 2026-07-19 |
| UTA786 | UTair Aviation | 12 | 2026-07-25 |
| UTA785 | UTair Aviation | 11 | 2026-07-24 |
| UTA801 | UTair Aviation | 6 | 2026-05-16 |
| UTA786B | - | 3 | 2026-05-23 |
| UTA785B | - | 2 | 2026-05-23 |
| UTA786G | - | 1 | 2026-05-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | UTA786 | EVN → VKO | Jul 25, 01:05 UTC | Jul 25, 01:35 UTC | 30m |
| 2026-07-24 | UTA785 | VKO → EVN | Jul 24, 22:50 UTC | Jul 24, 23:05 UTC | 15m |
| 2026-07-22 | UTA786 | EVN → VKO | Jul 22, 23:15 UTC | Jul 23, 14:25 UTC | 15h 10m |
| 2026-07-22 | UTA785 | VKO → EVN | Jul 22, 20:50 UTC | Jul 22, 21:05 UTC | 15m |
| 2026-07-19 | UTA786 | EVN → VKO | Jul 19, 23:05 UTC | Jul 20, 14:40 UTC | 15h 35m |
| 2026-07-19 | UTA785 | VKO → EVN | Jul 19, 20:45 UTC | Jul 19, 20:55 UTC | 10m |
| 2026-07-19 | UTA802 | - | Jul 19, 14:35 UTC | Jul 19, 14:50 UTC | 15m |
| 2026-07-16 | UTA786 | EVN → VKO | Jul 16, 23:29 UTC | Jul 16, 23:55 UTC | 25m |
| 2026-07-16 | UTA802 | - | Jul 16, 14:10 UTC | Jul 16, 21:15 UTC | 7h 5m |
| 2026-07-15 | UTA802 | - | Jul 15, 14:30 UTC | Jul 16, 14:15 UTC | 23h 45m |
| 2026-07-15 | UTA802 | - | Jul 15, 06:00 UTC | Jul 15, 15:10 UTC | 9h 10m |
| 2026-07-14 | UTA802 | - | Jul 14, 16:00 UTC | Jul 15, 06:10 UTC | 14h 9m |
| 2026-07-13 | UTA802 | - | Jul 13, 06:20 UTC | Jul 13, 15:00 UTC | 8h 40m |
| 2026-06-01 | UTA802 | DYU → VKO | Jun 1, 23:00 UTC | Jun 2, 14:40 UTC | 15h 40m |
| 2026-06-01 | UTA785 | VKO → EVN | Jun 1, 06:20 UTC | Jun 1, 21:15 UTC | 14h 55m |
| 2026-05-29 | UTA786 | EVN → VKO | May 29, 02:50 UTC | May 29, 03:15 UTC | 25m |
| 2026-05-28 | UTA785 | VKO → EVN | May 28, 23:50 UTC | May 29, 00:00 UTC | 10m |
| 2026-05-27 | UTA802 | DYU → VKO | May 27, 15:55 UTC | May 27, 16:40 UTC | 45m |
| 2026-05-27 | UTA802 | DYU → VKO | May 27, 14:55 UTC | May 27, 15:20 UTC | 25m |
| 2026-05-25 | UTA786 | EVN → VKO | May 25, 23:10 UTC | May 25, 23:35 UTC | 25m |
| 2026-05-25 | UTA802 | DYU → VKO | May 25, 14:35 UTC | May 25, 21:15 UTC | 6h 39m |
| 2026-05-24 | UTA802 | DYU → VKO | May 24, 20:20 UTC | May 25, 15:15 UTC | 18h 55m |
| 2026-05-24 | UTA802 | DYU → VKO | May 24, 20:05 UTC | May 25, 15:15 UTC | 19h 10m |
| 2026-05-24 | UTA802 | DYU → VKO | May 24, 12:55 UTC | May 24, 21:30 UTC | 8h 35m |
| 2026-05-23 | UTA802 | DYU → VKO | May 23, 21:30 UTC | May 24, 20:15 UTC | 22h 45m |
| 2026-05-23 | UTA786B | - | May 23, 08:30 UTC | May 23, 21:55 UTC | 13h 25m |
| 2026-05-23 | UTA785B | - | May 23, 06:05 UTC | May 23, 06:20 UTC | 15m |
| 2026-05-22 | UTA785B | - | May 22, 07:35 UTC | May 23, 06:15 UTC | 22h 39m |
| 2026-05-22 | UTA786 | EVN → VKO | May 22, 00:15 UTC | May 22, 07:35 UTC | 7h 20m |
| 2026-05-21 | UTA802 | DYU → VKO | May 21, 14:00 UTC | May 21, 22:10 UTC | 8h 10m |
| 2026-05-20 | UTA802 | DYU → VKO | May 20, 14:20 UTC | May 21, 14:15 UTC | 23h 55m |
| 2026-05-19 | UTA802 | DYU → VKO | May 19, 14:20 UTC | May 20, 14:15 UTC | 23h 56m |
| 2026-05-18 | UTA786 | EVN → VKO | May 18, 23:10 UTC | May 19, 14:35 UTC | 15h 25m |
| 2026-05-18 | UTA785 | VKO → EVN | May 18, 06:05 UTC | May 18, 21:05 UTC | 14h 59m |
| 2026-05-16 | UTA801 | VKO → DYU | May 16, 06:06 UTC | May 16, 14:31 UTC | 8h 25m |
| 2026-05-15 | UTA786B | - | May 15, 02:30 UTC | May 15, 21:50 UTC | 19h 19m |
| 2026-05-15 | UTA785 | VKO → EVN | May 15, 00:15 UTC | May 15, 00:30 UTC | 15m |
| 2026-05-14 | UTA802 | DYU → VKO | May 14, 18:20 UTC | May 14, 18:45 UTC | 25m |
| 2026-05-14 | UTA786B | - | May 14, 04:15 UTC | May 14, 17:50 UTC | 13h 35m |
| 2026-05-13 | UTA802 | DYU → VKO | May 13, 10:35 UTC | May 14, 01:20 UTC | 14h 45m |
| 2026-05-11 | UTA785 | VKO → EVN | May 11, 06:35 UTC | May 11, 21:25 UTC | 14h 51m |
| 2026-05-10 | UTA801 | VKO → DYU | May 10, 05:34 UTC | May 10, 21:14 UTC | 15h 40m |
| 2026-05-07 | UTA786G | - | May 7, 01:50 UTC | May 7, 02:15 UTC | 25m |
| 2026-05-06 | UTA802 | DYU → VKO | May 6, 10:05 UTC | May 6, 23:45 UTC | 13h 39m |
| 2026-05-03 | UTA801 | VKO → DYU | May 3, 20:25 UTC | May 3, 20:35 UTC | 10m |
| 2026-04-30 | UTA802 | DYU → VKO | Apr 30, 05:55 UTC | Apr 30, 18:50 UTC | 12h 55m |
| 2026-04-29 | UTA802 | DYU → VKO | Apr 29, 14:10 UTC | Apr 30, 06:30 UTC | 16h 19m |
| 2026-04-29 | UTA802 | DYU → VKO | Apr 29, 06:19 UTC | Apr 30, 06:05 UTC | 23h 45m |
| 2026-04-28 | UTA802 | DYU → VKO | Apr 28, 20:20 UTC | Apr 29, 14:40 UTC | 18h 21m |
| 2026-04-28 | UTA802 | DYU → VKO | Apr 28, 11:35 UTC | Apr 29, 06:19 UTC | 18h 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-73081 page for operator, model, and routing details .