Apparatus

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sensors Mode-S transponder

151FD4

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73684 · AIRBUS A-330-300

Hex
151FD4
Octal
05217724
Decimal
1,384,404
Country
RU
Tail
RA-73684
Type
A333
No current signal · last broadcast 12h ago
Flights observed
64
Distinct callsigns
6
Country
RU
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 151FD4.

Country allocation

The ICAO 24-bit address 151FD4 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 6 distinct

Callsign Airline Flights Last seen
AFL5803 Aeroflot Russian Airlines 21 2026-05-28
AFL5823 Aeroflot Russian Airlines 19 2026-06-02
AFL5805 Aeroflot Russian Airlines 13 2026-05-30
AFL5802 Aeroflot Russian Airlines 5 2026-05-27
AFL5822 Aeroflot Russian Airlines 3 2026-05-15
AFL5804 Aeroflot Russian Airlines 3 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 AFL5823 UUS → SVO Jun 2, 15:10 UTCJun 2, 16:25 UTC1h 15m
2026-06-01 AFL5823 UUS → SVO Jun 1, 10:00 UTCJun 1, 11:20 UTC1h 20m
2026-05-30 AFL5805 VVO → SVO May 30, 13:15 UTCMay 30, 13:30 UTC15m
2026-05-29 AFL5805 VVO → SVO May 29, 17:05 UTCMay 30, 12:35 UTC19h 30m
2026-05-29 AFL5805 VVO → SVO May 29, 16:45 UTCMay 30, 12:35 UTC19h 50m
2026-05-29 AFL5804 SVO → VVO May 29, 15:45 UTCMay 29, 16:15 UTC30m
2026-05-28 AFL5823 UUS → SVO May 28, 18:30 UTCMay 29, 11:10 UTC16h 40m
2026-05-28 AFL5823 UUS → SVO May 28, 11:05 UTCMay 29, 11:00 UTC23h 55m
2026-05-28 AFL5803 VVO → SVO May 28, 10:20 UTCMay 28, 19:00 UTC8h 40m
2026-05-27 AFL5803 VVO → SVO May 27, 18:30 UTCMay 28, 11:40 UTC17h 10m
2026-05-27 AFL5802 SVO → VVO May 27, 17:20 UTCMay 27, 17:40 UTC20m
2026-05-26 AFL5803 VVO → SVO May 26, 17:09 UTCMay 27, 12:00 UTC18h 50m
2026-05-26 AFL5803 VVO → SVO May 26, 10:25 UTCMay 26, 11:44 UTC1h 20m
2026-05-25 AFL5802 SVO → VVO May 25, 16:55 UTCMay 25, 17:15 UTC20m
2026-05-25 AFL5805 VVO → SVO May 25, 11:30 UTCMay 25, 13:00 UTC1h 30m
2026-05-24 AFL5805 VVO → SVO May 24, 15:55 UTCMay 25, 13:00 UTC21h 5m
2026-05-23 AFL5805 VVO → SVO May 23, 11:00 UTCMay 23, 12:30 UTC1h 30m
2026-05-21 AFL5803 VVO → SVO May 21, 10:55 UTCMay 21, 12:10 UTC1h 15m
2026-05-20 AFL5802 SVO → VVO May 20, 17:20 UTCMay 20, 17:30 UTC10m
2026-05-20 AFL5823 UUS → SVO May 20, 10:40 UTCMay 20, 12:00 UTC1h 20m
2026-05-18 AFL5802 SVO → VVO May 18, 17:05 UTCMay 18, 17:30 UTC25m
2026-05-18 AFL5823 UUS → SVO May 18, 10:50 UTCMay 18, 12:20 UTC1h 30m
2026-05-15 AFL5822 SVO → UUS May 15, 17:50 UTCMay 15, 18:10 UTC20m
2026-05-14 AFL5803 VVO → SVO May 14, 10:40 UTCMay 14, 11:10 UTC30m
2026-05-13 AFL5803 VVO → SVO May 13, 11:05 UTCMay 14, 11:01 UTC23h 55m
2026-05-13 AFL5803 VVO → SVO May 13, 10:35 UTCMay 13, 12:00 UTC1h 25m
2026-05-11 AFL5805 VVO → SVO May 11, 16:35 UTCMay 12, 09:30 UTC16h 56m
2026-05-11 AFL5805 VVO → SVO May 11, 09:05 UTCMay 12, 09:00 UTC23h 56m
2026-05-11 AFL5805 VVO → SVO May 11, 08:50 UTCMay 11, 16:45 UTC7h 55m
2026-05-09 AFL5805 VVO → SVO May 9, 09:10 UTCMay 9, 10:25 UTC1h 15m
2026-05-08 AFL5805 VVO → SVO May 8, 08:59 UTCMay 8, 10:29 UTC1h 30m
2026-05-07 AFL5803 VVO → SVO May 7, 10:25 UTCMay 7, 11:55 UTC1h 30m
2026-05-06 AFL5802 SVO → VVO May 6, 17:20 UTCMay 6, 17:30 UTC10m
2026-05-02 AFL5823 UUS → SVO May 2, 10:05 UTCMay 2, 11:20 UTC1h 15m
2026-05-01 AFL5823 UUS → SVO May 1, 11:05 UTCMay 2, 11:00 UTC23h 55m
2026-04-30 AFL5823 UUS → SVO Apr 30, 18:30 UTCMay 1, 12:10 UTC17h 40m
2026-04-30 AFL5803 VVO → SVO Apr 30, 10:35 UTCApr 30, 11:55 UTC1h 20m
2026-04-29 AFL5803 VVO → SVO Apr 29, 11:05 UTCApr 30, 11:00 UTC23h 54m
2026-04-28 AFL5803 VVO → SVO Apr 28, 17:45 UTCApr 29, 11:10 UTC17h 25m
2026-04-28 AFL5803 VVO → SVO Apr 28, 11:20 UTCApr 29, 11:00 UTC23h 41m
2026-04-27 AFL5803 VVO → SVO Apr 27, 19:05 UTCApr 28, 17:55 UTC22h 50m
2026-04-27 AFL5803 VVO → SVO Apr 27, 18:25 UTCApr 28, 12:40 UTC18h 15m
2026-04-27 AFL5823 UUS → SVO Apr 27, 10:50 UTCApr 27, 19:30 UTC8h 40m
2026-04-26 AFL5823 UUS → SVO Apr 26, 18:15 UTCApr 27, 12:15 UTC18h 0m
2026-04-24 AFL5805 VVO → SVO Apr 24, 17:00 UTCApr 25, 10:10 UTC17h 10m
2026-04-24 AFL5804 SVO → SVO Apr 24, 15:55 UTCApr 24, 16:20 UTC25m
2026-04-23 AFL5823 UUS → SVO Apr 23, 18:50 UTCApr 24, 12:15 UTC17h 25m
2026-04-23 AFL5823 UUS → SVO Apr 23, 11:05 UTCApr 24, 11:00 UTC23h 55m
2026-04-23 AFL5803 VVO → SVO Apr 23, 10:10 UTCApr 23, 19:00 UTC8h 49m
2026-04-22 AFL5803 VVO → SVO Apr 22, 11:25 UTCApr 23, 11:01 UTC23h 35m

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-73684 page for operator, model, and routing details .

Mode-S 151FD4 frequently asked

What is Mode-S code 151FD4?
151FD4 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73684.
Where is Mode-S 151FD4 registered?
Mode-S code 151FD4 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FD4 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FD4, octal 05217724, decimal 1,384,404.
What flights does 151FD4 operate?
Mode-S 151FD4 has broadcast 6 distinct callsigns, including AFL5803, AFL5823, AFL5805, AFL5802, AFL5822.