Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151FE8

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73704 · AIRBUS A-321

Hex
151FE8
Octal
05217750
Decimal
1,384,424
Country
RU
Tail
RA-73704
Type
A321
No current signal · last broadcast 3d ago
Flights observed
113
Distinct callsigns
20
Country
RU
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 151FE8.

Country allocation

The ICAO 24-bit address 151FE8 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
AFL431 Aeroflot Russian Airlines 24 2026-05-24
AFL421 Aeroflot Russian Airlines 10 2026-05-26
AFL433 Aeroflot Russian Airlines 8 2026-05-23
AFL430 Aeroflot Russian Airlines 8 2026-05-24
AFL420 Aeroflot Russian Airlines 8 2026-05-26
AFL660 - 3 2026-04-15
AFL432 Aeroflot Russian Airlines 3 2026-05-09
AFL2148 Aeroflot Russian Airlines 3 2026-04-26
AFL1882 Aeroflot Russian Airlines 3 2026-04-23
AFL1645 - 3 2026-04-15
AFL1018 Aeroflot Russian Airlines 3 2026-05-07
AFL1017 Aeroflot Russian Airlines 3 2026-05-05
AFL1016 Aeroflot Russian Airlines 3 2026-05-05
AFL1011 Aeroflot Russian Airlines 3 2026-05-06
AFL1010 Aeroflot Russian Airlines 3 2026-05-06
AFL853 Aeroflot Russian Airlines 2 2026-04-19
AFL661 - 2 2026-04-15
AFL233 Aeroflot Russian Airlines 2 2026-04-27
AFL2149 Aeroflot Russian Airlines 2 2026-04-26
AFL1644 Aeroflot Russian Airlines 2 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-26 AFL421 HRG → SVO May 26, 22:35 UTCMay 26, 22:44 UTC10m
2026-05-26 AFL420 SVO → HRG May 26, 11:50 UTCMay 26, 18:40 UTC6h 50m
2026-05-26 AFL420 SVO → HRG May 26, 09:35 UTCMay 26, 09:59 UTC25m
2026-05-25 AFL1681 NBC → SVO May 25, 14:45 UTCMay 25, 15:05 UTC20m
2026-05-25 AFL1680 SVO → NBC May 25, 12:00 UTCMay 25, 12:25 UTC25m
2026-05-24 AFL431 SSH → SVO May 24, 17:55 UTCMay 24, 19:15 UTC1h 20m
2026-05-24 AFL430 SVO → SSH May 24, 14:00 UTCMay 24, 15:20 UTC1h 20m
2026-05-24 AFL430 SVO → SSH May 24, 09:55 UTCMay 24, 10:25 UTC30m
2026-05-23 AFL433 HRG → SVO May 23, 12:35 UTCMay 23, 21:50 UTC9h 16m
2026-05-22 AFL433 HRG → SVO May 22, 20:05 UTCMay 23, 19:40 UTC23h 35m
2026-05-22 AFL421 HRG → SVO May 22, 18:05 UTCMay 23, 18:00 UTC23h 55m
2026-05-22 AFL421 HRG → SVO May 22, 14:25 UTCMay 23, 13:55 UTC23h 29m
2026-05-21 AFL421 HRG → SVO May 21, 20:05 UTCMay 22, 20:00 UTC23h 55m
2026-05-21 AFL431 SSH → SVO May 21, 18:05 UTCMay 22, 15:30 UTC21h 24m
2026-05-21 AFL431 SSH → SVO May 21, 12:30 UTCMay 21, 21:15 UTC8h 45m
2026-05-20 AFL430 SVO → SSH May 20, 20:05 UTCMay 21, 19:25 UTC23h 20m
2026-05-20 AFL430 SVO → SSH May 20, 18:40 UTCMay 21, 14:55 UTC20h 15m
2026-05-19 AFL431 SSH → SVO May 19, 18:05 UTCMay 20, 15:15 UTC21h 11m
2026-05-18 AFL431 SSH → SVO May 18, 20:05 UTCMay 19, 15:15 UTC19h 10m
2026-05-18 AFL431 SSH → SVO May 18, 18:05 UTCMay 19, 15:15 UTC21h 9m
2026-05-18 AFL431 SSH → SVO May 18, 17:50 UTCMay 19, 15:15 UTC21h 24m
2026-05-18 AFL431 SSH → SVO May 18, 14:05 UTCMay 19, 14:00 UTC23h 54m
2026-05-18 AFL431 SSH → SVO May 18, 12:45 UTCMay 18, 21:25 UTC8h 39m
2026-05-17 AFL431 SSH → SVO May 17, 20:05 UTCMay 18, 20:00 UTC23h 54m
2026-05-17 AFL431 SSH → SVO May 17, 18:05 UTCMay 18, 18:00 UTC23h 55m
2026-05-17 AFL431 SSH → SVO May 17, 17:55 UTCMay 18, 14:50 UTC20h 55m
2026-05-17 AFL431 SSH → SVO May 17, 14:20 UTCMay 18, 14:00 UTC23h 40m
2026-05-16 AFL431 SSH → SVO May 16, 20:15 UTCMay 17, 20:01 UTC23h 45m
2026-05-16 AFL431 SSH → SVO May 16, 18:05 UTCMay 17, 18:01 UTC23h 55m
2026-05-16 AFL431 SSH → SVO May 16, 14:01 UTCMay 16, 21:45 UTC7h 44m
2026-05-15 AFL431 SSH → SVO May 15, 18:05 UTCMay 16, 15:16 UTC21h 11m
2026-05-15 AFL431 SSH → SVO May 15, 17:50 UTCMay 16, 15:16 UTC21h 26m
2026-05-15 AFL430 SVO → SSH May 15, 03:35 UTCMay 15, 15:10 UTC11h 34m
2026-05-13 AFL431 SSH → SVO May 13, 12:40 UTCMay 13, 21:50 UTC9h 10m
2026-05-12 AFL431 SSH → SVO May 12, 20:05 UTCMay 13, 19:40 UTC23h 35m
2026-05-12 AFL431 SSH → SVO May 12, 18:50 UTCMay 13, 15:15 UTC20h 25m
2026-05-12 AFL430 SVO → SSH May 12, 13:35 UTCMay 12, 16:10 UTC2h 35m
2026-05-11 AFL430 SVO → SSH May 11, 20:10 UTCMay 12, 16:10 UTC20h 0m
2026-05-11 AFL431 SSH → SVO May 11, 18:35 UTCMay 12, 16:10 UTC21h 35m
2026-05-11 AFL431 SSH → SVO May 11, 14:25 UTCMay 12, 14:00 UTC23h 36m
2026-05-11 AFL431 SSH → SVO May 11, 10:55 UTCMay 11, 21:40 UTC10h 45m
2026-05-11 AFL430 SVO → SSH May 11, 10:10 UTCMay 11, 10:20 UTC10m
2026-05-10 AFL421 HRG → SVO May 10, 22:49 UTCMay 10, 23:09 UTC20m
2026-05-10 AFL421 HRG → SVO May 10, 14:09 UTCMay 10, 21:19 UTC7h 10m
2026-05-09 AFL421 HRG → SVO May 9, 22:10 UTCMay 10, 21:19 UTC23h 10m
2026-05-09 AFL433 HRG → SVO May 9, 20:10 UTCMay 10, 20:00 UTC23h 50m
2026-05-09 AFL433 HRG → SVO May 9, 16:05 UTCMay 10, 15:29 UTC23h 25m
2026-05-09 AFL432 SVO → HRG May 9, 11:50 UTCMay 9, 23:44 UTC11h 55m
2026-05-09 AFL432 SVO → HRG May 9, 10:40 UTCMay 9, 11:15 UTC35m
2026-05-09 AFL1895 OSS → SVO May 9, 08:15 UTCMay 9, 08:45 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-73704 page for operator, model, and routing details .

Mode-S 151FE8 frequently asked

What is Mode-S code 151FE8?
151FE8 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73704.
Where is Mode-S 151FE8 registered?
Mode-S code 151FE8 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FE8 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FE8, octal 05217750, decimal 1,384,424.
What flights does 151FE8 operate?
Mode-S 151FE8 has broadcast 20 distinct callsigns, including AFL431, AFL421, AFL433, AFL430, AFL420.