Apparatus

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sensors Mode-S transponder

151FE7

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73703 · AIRBUS A-321

Hex
151FE7
Octal
05217747
Decimal
1,384,423
Country
RU
Tail
RA-73703
Type
A321
Broadcasting now · callsign AFL432 · 950 ft
Flights observed
104
Distinct callsigns
20
Country
RU
Last broadcast
12h ago

Current position

151FE7 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 151FE7 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 20 distinct

Callsign Airline Flights Last seen
AFL421 Aeroflot Russian Airlines 25 2026-05-28
AFL420 Aeroflot Russian Airlines 12 2026-05-27
AFL430 Aeroflot Russian Airlines 9 2026-05-29
AFL431 Aeroflot Russian Airlines 6 2026-05-29
AFL661 Aeroflot Russian Airlines 5 2026-05-06
AFL233 Aeroflot Russian Airlines 5 2026-04-20
AFL232 Aeroflot Russian Airlines 5 2026-04-23
AFL2160 Aeroflot Russian Airlines 4 2026-05-02
AFL1645 Aeroflot Russian Airlines 4 2026-05-06
AFL1644 Aeroflot Russian Airlines 4 2026-05-05
AFL1003 Aeroflot Russian Airlines 3 2026-05-04
AFL1895 Aeroflot Russian Airlines 2 2026-04-27
AFL1882 Aeroflot Russian Airlines 2 2026-05-24
AFL1025 Aeroflot Russian Airlines 2 2026-05-24
AFL1002 Aeroflot Russian Airlines 2 2026-05-03
AFL2161 Aeroflot Russian Airlines 1 2026-05-02
AFL1883 Aeroflot Russian Airlines 1 2026-05-05
AFL1318 Aeroflot Russian Airlines 1 2026-04-25
AFL1307 Aeroflot Russian Airlines 1 2026-05-22
AFL1270 Aeroflot Russian Airlines 1 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL431 SSH → SVO May 29, 17:55 UTCMay 29, 20:50 UTC2h 55m
2026-05-29 AFL430 SVO → SSH May 29, 13:05 UTCMay 29, 15:30 UTC2h 25m
2026-05-29 AFL430 SVO → SSH May 29, 09:40 UTCMay 29, 10:10 UTC30m
2026-05-28 AFL421 HRG → SVO May 28, 13:00 UTCMay 28, 20:45 UTC7h 45m
2026-05-27 AFL420 SVO → HRG May 27, 19:50 UTCMay 28, 19:15 UTC23h 25m
2026-05-27 AFL431 SSH → SVO May 27, 18:00 UTCMay 28, 17:45 UTC23h 45m
2026-05-27 AFL430 SVO → SSH May 27, 12:40 UTCMay 27, 15:20 UTC2h 40m
2026-05-27 AFL430 SVO → SSH May 27, 09:45 UTCMay 27, 10:10 UTC25m
2026-05-26 AFL431 SSH → SVO May 26, 18:05 UTCMay 26, 19:25 UTC1h 20m
2026-05-26 AFL430 SVO → SSH May 26, 11:05 UTCMay 26, 15:49 UTC4h 45m
2026-05-26 AFL430 SVO → SSH May 26, 09:55 UTCMay 26, 10:14 UTC20m
2026-05-25 AFL431 SSH → SVO May 25, 18:40 UTCMay 25, 21:40 UTC2h 59m
2026-05-25 AFL430 SVO → SSH May 25, 09:50 UTCMay 25, 15:15 UTC5h 25m
2026-05-24 AFL1882 SVO → FRU May 24, 19:40 UTCMay 24, 19:55 UTC15m
2026-05-24 AFL1025 KGD → SVO May 24, 15:45 UTCMay 24, 17:20 UTC1h 35m
2026-05-24 AFL1024 SVO → KGD May 24, 11:30 UTCMay 24, 13:30 UTC2h 0m
2026-05-23 AFL430 SVO → SSH May 23, 13:20 UTCMay 23, 19:10 UTC5h 51m
2026-05-22 AFL1307 OVB → SVO May 22, 05:35 UTCMay 22, 06:35 UTC1h 0m
2026-05-17 AFL421 HRG → SVO May 17, 14:05 UTCMay 17, 21:20 UTC7h 15m
2026-05-15 AFL421 HRG → SVO May 15, 14:10 UTCMay 15, 21:45 UTC7h 34m
2026-05-14 AFL431 SSH → SVO May 14, 23:35 UTCMay 14, 23:55 UTC20m
2026-05-14 AFL431 SSH → SVO May 14, 18:15 UTCMay 14, 21:45 UTC3h 30m
2026-05-13 AFL430 SVO → SSH May 13, 19:50 UTCMay 14, 15:30 UTC19h 40m
2026-05-13 AFL421 HRG → SVO May 13, 17:50 UTCMay 14, 15:30 UTC21h 40m
2026-05-13 AFL421 HRG → SVO May 13, 17:20 UTCMay 14, 15:30 UTC22h 10m
2026-05-13 AFL421 HRG → SVO May 13, 13:50 UTCMay 14, 13:20 UTC23h 30m
2026-05-13 AFL421 HRG → SVO May 13, 11:40 UTCMay 13, 20:40 UTC9h 0m
2026-05-10 AFL1235 UFA → SVO May 10, 21:35 UTCMay 11, 12:45 UTC15h 10m
2026-05-07 AFL1025 KGD → SVO May 7, 21:50 UTCMay 8, 17:00 UTC19h 10m
2026-05-07 AFL421 HRG → SVO May 7, 19:50 UTCMay 8, 17:00 UTC21h 10m
2026-05-07 AFL421 HRG → SVO May 7, 18:45 UTCMay 8, 17:00 UTC22h 15m
2026-05-07 AFL421 HRG → SVO May 7, 14:10 UTCMay 8, 08:59 UTC18h 49m
2026-05-07 AFL421 HRG → SVO May 7, 11:25 UTCMay 8, 08:59 UTC21h 34m
2026-05-06 AFL420 SVO → HRG May 6, 15:50 UTCMay 7, 15:45 UTC23h 55m
2026-05-06 AFL1645 IKT → SVO May 6, 15:40 UTCMay 7, 11:30 UTC19h 50m
2026-05-06 AFL661 HKT → IKT May 6, 02:20 UTCMay 6, 11:45 UTC9h 25m
2026-05-05 AFL1644 SVO → IKT May 5, 12:50 UTCMay 5, 13:00 UTC10m
2026-05-05 AFL1883 FRU → SVO May 5, 03:50 UTCMay 5, 04:20 UTC30m
2026-05-04 AFL1882 SVO → FRU May 4, 19:00 UTCMay 4, 19:20 UTC20m
2026-05-04 AFL1003 KGD → SVO May 4, 11:05 UTCMay 4, 12:25 UTC1h 20m
2026-05-03 AFL1002 SVO → KGD May 3, 17:50 UTCMay 4, 09:30 UTC15h 40m
2026-05-02 AFL2161 AYT → SVO May 2, 16:10 UTCMay 2, 18:00 UTC1h 50m
2026-05-02 AFL2160 SVO → AYT May 2, 12:35 UTCMay 2, 13:20 UTC45m
2026-05-02 AFL1270 SVO → KZN May 2, 03:40 UTCMay 2, 04:20 UTC40m
2026-05-01 AFL421 HRG → SVO May 1, 13:20 UTCMay 1, 21:30 UTC8h 10m
2026-04-30 AFL420 SVO → HRG Apr 30, 17:50 UTCMay 1, 15:55 UTC22h 5m
2026-04-30 AFL420 SVO → HRG Apr 30, 16:10 UTCMay 1, 15:45 UTC23h 35m
2026-04-30 AFL2160 SVO → AYT Apr 30, 13:55 UTCApr 30, 14:15 UTC20m
2026-04-30 AFL2160 SVO → AYT Apr 30, 12:35 UTCApr 30, 13:05 UTC30m
2026-04-30 AFL2160 SVO → AYT Apr 30, 09:40 UTCApr 30, 10:10 UTC30m

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-73703 page for operator, model, and routing details .

Mode-S 151FE7 frequently asked

What is Mode-S code 151FE7?
151FE7 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73703.
Where is Mode-S 151FE7 registered?
Mode-S code 151FE7 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FE7 broadcasting right now?
Yes. Mode-S 151FE7 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FE7, octal 05217747, decimal 1,384,423.
What flights does 151FE7 operate?
Mode-S 151FE7 has broadcast 20 distinct callsigns, including AFL421, AFL420, AFL430, AFL431, AFL661.