Apparatus

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sensors Mode-S transponder

151D7F

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73087 · BOEING 737-800

Hex
151D7F
Octal
05216577
Decimal
1,383,807
Country
RU
Tail
RA-73087
Type
B738
No current signal · last broadcast 1d ago
Flights observed
57
Distinct callsigns
19
Country
RU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 151D7F.

Country allocation

The ICAO 24-bit address 151D7F 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 19 distinct

Callsign Airline Flights Last seen
UTA469 UTair Aviation 12 2026-05-16
UTA806 UTair Aviation 11 2026-05-31
UTA248 UTair Aviation 6 2026-05-17
UTA728 UTair Aviation 4 2026-05-28
UTA470 UTair Aviation 4 2026-05-13
UTA746 UTair Aviation 3 2026-05-19
UTA731 UTair Aviation 3 2026-05-16
UTA786 UTair Aviation 2 2026-05-24
UTA291 UTair Aviation 2 2026-05-10
UTA882 UTair Aviation 1 2026-05-11
UTA881 UTair Aviation 1 2026-04-20
UTA805 UTair Aviation 1 2026-05-02
UTA786B - 1 2026-05-04
UTA785B - 1 2026-05-04
UTA785 UTair Aviation 1 2026-04-14
UTA784 UTair Aviation 1 2026-04-27
UTA745 UTair Aviation 1 2026-04-16
UTA727 UTair Aviation 1 2026-05-28
UTA572 UTair Aviation 1 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-31 UTA806 TAS → VKO May 31, 23:45 UTCJun 1, 17:45 UTC18h 0m
2026-05-31 UTA806 TAS → VKO May 31, 17:05 UTCJun 1, 00:20 UTC7h 15m
2026-05-28 UTA728 TLV → KUF May 28, 07:20 UTCMay 28, 07:50 UTC30m
2026-05-28 UTA727 KUF → TLV May 28, 05:25 UTCMay 28, 05:45 UTC20m
2026-05-24 UTA786 EVN → VKO May 24, 23:15 UTCMay 24, 23:46 UTC31m
2026-05-24 UTA728 TLV → KUF May 24, 01:35 UTCMay 24, 01:45 UTC10m
2026-05-23 UTA806 TAS → VKO May 23, 00:15 UTCMay 23, 00:50 UTC35m
2026-05-22 UTA806 TAS → VKO May 22, 04:25 UTCMay 23, 00:50 UTC20h 25m
2026-05-21 UTA806 TAS → VKO May 21, 01:20 UTCMay 21, 01:50 UTC30m
2026-05-19 UTA746 GYD → VKO May 19, 09:40 UTCMay 19, 18:05 UTC8h 25m
2026-05-17 UTA248 SGC → VKO May 17, 07:25 UTCMay 18, 00:40 UTC17h 15m
2026-05-16 UTA248 SGC → VKO May 16, 21:50 UTCMay 17, 17:05 UTC19h 15m
2026-05-16 UTA248 SGC → VKO May 16, 13:51 UTCMay 17, 08:05 UTC18h 15m
2026-05-16 UTA731 LED → GYD May 16, 08:26 UTCMay 16, 08:41 UTC15m
2026-05-16 UTA469 SGC → LED May 16, 03:35 UTCMay 16, 05:05 UTC1h 30m
2026-05-15 UTA469 SGC → LED May 15, 03:55 UTCMay 16, 03:45 UTC23h 49m
2026-05-14 UTA469 SGC → LED May 14, 14:55 UTCMay 15, 05:20 UTC14h 25m
2026-05-13 UTA470 LED → SGC May 13, 21:30 UTCMay 14, 15:20 UTC17h 50m
2026-05-13 UTA470 LED → SGC May 13, 16:00 UTCMay 14, 15:20 UTC23h 20m
2026-05-13 UTA470 LED → SGC May 13, 14:30 UTCMay 14, 04:10 UTC13h 40m
2026-05-12 UTA470 LED → SGC May 12, 21:55 UTCMay 13, 21:45 UTC23h 50m
2026-05-12 UTA469 SGC → LED May 12, 04:00 UTCMay 12, 22:01 UTC18h 0m
2026-05-11 UTA882 SKD → LED May 11, 19:30 UTCMay 11, 19:40 UTC10m
2026-05-11 UTA469 SGC → LED May 11, 06:15 UTCMay 11, 10:40 UTC4h 25m
2026-05-10 UTA291 LED → GDZ May 10, 11:05 UTCMay 10, 12:05 UTC1h 0m
2026-05-10 UTA291 LED → GDZ May 10, 08:25 UTCMay 10, 09:30 UTC1h 5m
2026-05-09 UTA469 SGC → LED May 9, 13:40 UTCMay 10, 05:20 UTC15h 40m
2026-05-09 UTA469 SGC → LED May 9, 04:30 UTCMay 9, 14:15 UTC9h 45m
2026-05-08 UTA469 SGC → LED May 8, 05:54 UTCMay 9, 05:20 UTC23h 25m
2026-05-08 UTA469 SGC → LED May 8, 01:29 UTCMay 8, 07:14 UTC5h 45m
2026-05-06 UTA572 KJA → VKO May 6, 00:40 UTCMay 6, 01:25 UTC45m
2026-05-04 UTA786B - May 4, 05:50 UTCMay 4, 06:10 UTC20m
2026-05-04 UTA785B - May 4, 03:24 UTCMay 4, 03:54 UTC30m
2026-05-02 UTA805 VKO → TAS May 2, 17:30 UTCMay 3, 00:45 UTC7h 15m
2026-05-02 UTA806 TAS → VKO May 2, 00:25 UTCMay 2, 18:10 UTC17h 45m
2026-04-29 UTA746 GYD → VKO Apr 29, 14:10 UTCApr 29, 20:45 UTC6h 35m
2026-04-28 UTA746 GYD → VKO Apr 28, 18:00 UTCApr 29, 14:35 UTC20h 36m
2026-04-28 UTA728 TLV → KUF Apr 28, 08:05 UTCApr 28, 18:05 UTC10h 0m
2026-04-27 UTA784 AYT → VKO Apr 27, 16:40 UTCApr 28, 08:10 UTC15h 30m
2026-04-26 UTA806 TAS → VKO Apr 26, 16:20 UTCApr 27, 00:35 UTC8h 15m
2026-04-26 UTA806 TAS → VKO Apr 26, 03:50 UTCApr 27, 00:35 UTC20h 45m
2026-04-26 UTA248 SGC → VKO Apr 26, 03:30 UTCApr 27, 00:35 UTC21h 5m
2026-04-25 UTA248 SGC → VKO Apr 25, 13:40 UTCApr 26, 04:10 UTC14h 30m
2026-04-25 UTA731 LED → GYD Apr 25, 08:25 UTCApr 26, 04:10 UTC19h 45m
2026-04-25 UTA731 LED → GYD Apr 25, 04:20 UTCApr 26, 03:45 UTC23h 25m
2026-04-22 UTA469 SGC → LED Apr 22, 04:00 UTCApr 22, 21:55 UTC17h 55m
2026-04-21 UTA469 SGC → LED Apr 21, 07:40 UTCApr 22, 04:55 UTC21h 15m
2026-04-20 UTA248 SGC → VKO Apr 20, 21:50 UTCApr 21, 07:45 UTC9h 55m
2026-04-20 UTA881 LED → SKD Apr 20, 08:15 UTCApr 21, 07:45 UTC23h 31m
2026-04-19 UTA469 SGC → LED Apr 19, 18:15 UTCApr 20, 05:10 UTC10h 55m

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-73087 page for operator, model, and routing details .

Mode-S 151D7F frequently asked

What is Mode-S code 151D7F?
151D7F is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73087.
Where is Mode-S 151D7F registered?
Mode-S code 151D7F is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D7F broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D7F, octal 05216577, decimal 1,383,807.
What flights does 151D7F operate?
Mode-S 151D7F has broadcast 19 distinct callsigns, including UTA469, UTA806, UTA248, UTA728, UTA470.