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
115
Distinct callsigns
7
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 7 distinct

Callsign Airline Flights Last seen
AFL5823 - 49 2026-07-17
AFL5803 - 23 2026-07-05
AFL5805 - 20 2026-07-07
AFL5822 - 10 2026-07-14
AFL5802 Aeroflot Russian Airlines 7 2026-06-23
AFL5804 Aeroflot Russian Airlines 5 2026-06-22
AFL5807 - 1 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 AFL5823 - Jul 17, 13:10 UTCJul 17, 21:50 UTC8h 40m
2026-07-16 AFL5823 - Jul 16, 13:20 UTCJul 16, 14:45 UTC1h 25m
2026-07-15 AFL5823 - Jul 15, 13:05 UTCJul 15, 14:25 UTC1h 20m
2026-07-14 AFL5822 SVO → SVO Jul 14, 20:50 UTCJul 14, 21:15 UTC25m
2026-07-13 AFL5823 - Jul 13, 21:40 UTCJul 14, 14:30 UTC16h 50m
2026-07-13 AFL5823 - Jul 13, 15:05 UTCJul 14, 14:30 UTC23h 25m
2026-07-13 AFL5823 - Jul 13, 14:15 UTCJul 13, 22:00 UTC7h 45m
2026-07-12 AFL5823 - Jul 12, 23:25 UTCJul 13, 22:00 UTC22h 35m
2026-07-11 AFL5823 SVO → SVO Jul 11, 15:35 UTCJul 11, 16:00 UTC25m
2026-07-11 AFL5823 - Jul 11, 13:10 UTCJul 11, 14:40 UTC1h 30m
2026-07-10 AFL5823 - Jul 10, 13:15 UTCJul 10, 14:45 UTC1h 30m
2026-07-08 AFL5807 - Jul 8, 16:05 UTCJul 9, 07:20 UTC15h 15m
2026-07-07 AFL5805 - Jul 7, 08:40 UTCJul 7, 10:00 UTC1h 20m
2026-07-06 AFL5805 - Jul 6, 10:05 UTCJul 7, 09:00 UTC22h 55m
2026-07-05 AFL5803 - Jul 5, 11:05 UTCJul 6, 10:30 UTC23h 25m
2026-07-05 AFL5803 - Jul 5, 10:15 UTCJul 5, 11:50 UTC1h 35m
2026-07-04 AFL5805 - Jul 4, 09:25 UTCJul 4, 09:50 UTC25m
2026-07-03 AFL5805 - Jul 3, 08:35 UTCJul 3, 10:00 UTC1h 25m
2026-06-30 AFL5823 - Jun 30, 22:50 UTCJul 1, 14:20 UTC15h 30m
2026-06-30 AFL5823 - Jun 30, 13:35 UTCJun 30, 22:55 UTC9h 20m
2026-06-29 AFL5823 - Jun 29, 21:39 UTCJun 30, 14:55 UTC17h 16m
2026-06-29 AFL5823 - Jun 29, 14:25 UTCJun 29, 22:49 UTC8h 25m
2026-06-27 AFL5823 - Jun 27, 14:00 UTCJun 27, 14:35 UTC35m
2026-06-24 AFL5823 - Jun 24, 22:55 UTCJun 25, 15:15 UTC16h 20m
2026-06-23 AFL5802 SVO → VVO Jun 23, 17:59 UTCJun 24, 11:24 UTC17h 25m
2026-06-23 AFL5802 SVO → VVO Jun 23, 09:24 UTCJun 23, 18:29 UTC9h 5m
2026-06-22 AFL5804 SVO → VVO Jun 22, 17:20 UTCJun 23, 09:40 UTC16h 20m
2026-06-21 AFL5823 - Jun 21, 19:00 UTCJun 22, 11:30 UTC16h 30m
2026-06-19 AFL5805 VVO → SVO Jun 19, 17:14 UTCJun 20, 10:34 UTC17h 20m
2026-06-18 AFL5805 VVO → SVO Jun 18, 17:21 UTCJun 19, 12:39 UTC19h 18m
2026-06-18 AFL5804 SVO → VVO Jun 18, 16:00 UTCJun 18, 16:25 UTC25m
2026-06-17 AFL5823 - Jun 17, 18:50 UTCJun 18, 11:15 UTC16h 25m
2026-06-17 AFL5823 - Jun 17, 11:05 UTCJun 18, 11:00 UTC23h 55m
2026-06-17 AFL5823 - Jun 17, 10:40 UTCJun 17, 19:45 UTC9h 5m
2026-06-16 AFL5823 - Jun 16, 19:25 UTCJun 17, 19:00 UTC23h 36m
2026-06-16 AFL5823 UUS → SVO Jun 16, 11:45 UTCJun 17, 11:00 UTC23h 16m
2026-06-15 AFL5822 SVO → UUS Jun 15, 17:59 UTCJun 15, 18:15 UTC15m
2026-06-15 AFL5805 VVO → SVO Jun 15, 09:45 UTCJun 15, 11:00 UTC1h 15m
2026-06-11 AFL5823 UUS → SVO Jun 11, 18:10 UTCJun 12, 11:45 UTC17h 35m
2026-06-10 AFL5822 SVO → UUS Jun 10, 19:25 UTCJun 11, 12:10 UTC16h 45m
2026-06-10 AFL5822 SVO → UUS Jun 10, 18:25 UTCJun 10, 18:50 UTC25m
2026-06-09 AFL5823 UUS → SVO Jun 9, 18:50 UTCJun 10, 11:20 UTC16h 30m
2026-06-09 AFL5822 SVO → UUS Jun 9, 17:45 UTCJun 9, 18:00 UTC15m
2026-06-09 AFL5823 UUS → SVO Jun 9, 10:00 UTCJun 9, 11:25 UTC1h 25m
2026-06-08 AFL5823 UUS → SVO Jun 8, 11:05 UTCJun 9, 11:00 UTC23h 55m
2026-06-07 AFL5823 UUS → SVO Jun 7, 19:05 UTCJun 8, 11:55 UTC16h 50m
2026-06-07 AFL5822 SVO → UUS Jun 7, 18:15 UTCJun 7, 18:25 UTC10m
2026-06-06 AFL5823 UUS → SVO Jun 6, 10:34 UTCJun 6, 12:24 UTC1h 50m
2026-06-05 AFL5823 UUS → SVO Jun 5, 11:05 UTCJun 6, 10:55 UTC23h 50m
2026-06-05 AFL5823 UUS → SVO Jun 5, 10:10 UTCJun 5, 11:40 UTC1h 30m

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 7 distinct callsigns, including AFL5823, AFL5803, AFL5805, AFL5822, AFL5802.