Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151D7D

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73085 · BOEING 737-800

Hex
151D7D
Octal
05216575
Decimal
1,383,805
Country
RU
Tail
RA-73085
Type
B738
No current signal · last broadcast 3h ago
Flights observed
61
Distinct callsigns
17
Country
RU
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 151D7D.

Country allocation

The ICAO 24-bit address 151D7D 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
UTA469 UTair Aviation 16 2026-05-29
UTA746 UTair Aviation 7 2026-05-17
UTA805 UTair Aviation 5 2026-05-14
UTA745 UTair Aviation 5 2026-05-12
UTA731 UTair Aviation 5 2026-05-22
UTA470 UTair Aviation 4 2026-05-06
UTA806 UTair Aviation 3 2026-05-14
UTA785 UTair Aviation 3 2026-05-09
UTA881 UTair Aviation 2 2026-05-25
UTA786 UTair Aviation 2 2026-05-09
UTA364 UTair Aviation 2 2026-04-13
UTA248 UTair Aviation 2 2026-05-28
UTA807 - 1 2026-04-13
UTA732 UTair Aviation 1 2026-05-23
UTA296 - 1 2026-04-13
UTA247 - 1 2026-04-14
464 - 1 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 UTA469 SGC → LED May 29, 03:40 UTCMay 29, 22:10 UTC18h 30m
2026-05-28 UTA248 SGC → VKO May 28, 03:40 UTCMay 28, 04:00 UTC20m
2026-05-26 UTA469 SGC → LED May 26, 20:40 UTCMay 27, 04:59 UTC8h 20m
2026-05-25 UTA469 SGC → LED May 25, 16:55 UTCMay 26, 05:05 UTC12h 10m
2026-05-25 UTA881 LED → SKD May 25, 08:35 UTCMay 25, 09:35 UTC1h 0m
2026-05-25 UTA469 SGC → LED May 25, 03:45 UTCMay 25, 05:10 UTC1h 25m
2026-05-24 UTA248 SGC → VKO May 24, 03:55 UTCMay 24, 04:20 UTC25m
2026-05-23 UTA732 GYD → LED May 23, 08:10 UTCMay 23, 16:50 UTC8h 40m
2026-05-22 UTA469 SGC → LED May 22, 20:40 UTCMay 23, 05:15 UTC8h 34m
2026-05-22 UTA731 LED → GYD May 22, 08:20 UTCMay 22, 08:55 UTC35m
2026-05-22 UTA469 SGC → LED May 22, 06:00 UTCMay 22, 06:10 UTC10m
2026-05-22 UTA469 SGC → LED May 22, 03:50 UTCMay 22, 05:20 UTC1h 30m
2026-05-21 UTA469 SGC → LED May 21, 03:35 UTCMay 21, 05:05 UTC1h 30m
2026-05-18 UTA469 SGC → LED May 18, 11:45 UTCMay 19, 05:20 UTC17h 34m
2026-05-17 UTA746 GYD → VKO May 17, 14:40 UTCMay 18, 12:20 UTC21h 40m
2026-05-17 UTA746 GYD → VKO May 17, 01:30 UTCMay 17, 15:15 UTC13h 45m
2026-05-16 UTA746 GYD → VKO May 16, 09:56 UTCMay 17, 02:00 UTC16h 5m
2026-05-15 UTA746 GYD → VKO May 15, 19:35 UTCMay 16, 13:01 UTC17h 26m
2026-05-14 UTA805 VKO → TAS May 14, 17:55 UTCMay 15, 09:35 UTC15h 40m
2026-05-14 UTA806 TAS → VKO May 14, 02:05 UTCMay 15, 01:05 UTC23h 0m
2026-05-13 UTA806 TAS → VKO May 13, 11:00 UTCMay 14, 02:45 UTC15h 45m
2026-05-12 UTA745 VKO → GYD May 12, 17:20 UTCMay 13, 16:15 UTC22h 55m
2026-05-12 UTA805 VKO → TAS May 12, 16:55 UTCMay 13, 11:30 UTC18h 35m
2026-05-11 UTA805 VKO → TAS May 11, 17:00 UTCMay 12, 09:40 UTC16h 40m
2026-05-11 UTA746 GYD → VKO May 11, 11:45 UTCMay 11, 12:25 UTC40m
2026-05-09 UTA786 EVN → VKO May 9, 23:20 UTCMay 10, 12:34 UTC13h 15m
2026-05-09 UTA785 VKO → EVN May 9, 08:10 UTCMay 9, 21:25 UTC13h 15m
2026-05-08 UTA805 VKO → TAS May 8, 17:45 UTCMay 9, 08:20 UTC14h 35m
2026-05-08 UTA745 VKO → GYD May 8, 08:09 UTCMay 8, 18:20 UTC10h 10m
2026-05-06 UTA470 LED → SGC May 6, 21:45 UTCMay 6, 21:55 UTC10m
2026-05-05 UTA470 LED → SGC May 5, 22:15 UTCMay 5, 22:30 UTC15m
2026-05-04 UTA470 LED → SGC May 4, 23:30 UTCMay 5, 22:30 UTC23h 0m
2026-05-04 UTA470 LED → SGC May 4, 22:15 UTCMay 5, 00:10 UTC1h 55m
2026-05-04 UTA881 LED → SKD May 4, 09:55 UTCMay 4, 10:10 UTC15m
2026-05-04 UTA469 SGC → LED May 4, 03:40 UTCMay 4, 05:20 UTC1h 40m
2026-05-02 UTA469 SGC → LED May 2, 03:40 UTCMay 2, 09:00 UTC5h 20m
2026-05-01 UTA731 LED → GYD May 1, 08:05 UTCMay 1, 08:30 UTC25m
2026-05-01 UTA469 SGC → LED May 1, 04:25 UTCMay 1, 05:00 UTC35m
2026-04-29 UTA469 SGC → LED Apr 29, 03:45 UTCApr 29, 16:50 UTC13h 6m
2026-04-27 UTA746 GYD → VKO Apr 27, 16:25 UTCApr 27, 16:35 UTC10m
2026-04-27 UTA786 EVN → VKO Apr 27, 00:50 UTCApr 27, 14:40 UTC13h 50m
2026-04-26 UTA785 VKO → EVN Apr 26, 22:10 UTCApr 26, 23:05 UTC55m
2026-04-26 UTA785 VKO → EVN Apr 26, 00:35 UTCApr 26, 23:05 UTC22h 30m
2026-04-25 UTA806 TAS → VKO Apr 25, 17:45 UTCApr 26, 01:15 UTC7h 30m
2026-04-23 UTA805 VKO → TAS Apr 23, 17:10 UTCApr 24, 00:45 UTC7h 34m
2026-04-21 UTA746 GYD → VKO Apr 21, 17:35 UTCApr 22, 12:25 UTC18h 50m
2026-04-21 UTA745 VKO → GYD Apr 21, 09:20 UTCApr 22, 09:15 UTC23h 55m
2026-04-21 UTA745 VKO → GYD Apr 21, 09:00 UTCApr 21, 17:50 UTC8h 50m
2026-04-20 UTA745 VKO → GYD Apr 20, 17:00 UTCApr 21, 09:35 UTC16h 35m
2026-04-18 UTA731 LED → GYD Apr 18, 10:00 UTCApr 18, 11:10 UTC1h 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-73085 page for operator, model, and routing details .

Mode-S 151D7D frequently asked

What is Mode-S code 151D7D?
151D7D is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73085.
Where is Mode-S 151D7D registered?
Mode-S code 151D7D is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D7D broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D7D, octal 05216575, decimal 1,383,805.
What flights does 151D7D operate?
Mode-S 151D7D has broadcast 17 distinct callsigns, including UTA469, UTA746, UTA805, UTA745, UTA731.