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 2h ago
Flights observed
207
Distinct callsigns
20
Country
RU
Last broadcast
2h 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 - 40 2026-06-30
AFL430 - 25 2026-06-28
AFL421 - 17 2026-06-24
AFL420 - 15 2026-06-24
AFL433 Aeroflot Russian Airlines 9 2026-06-27
AFL1751 - 9 2026-07-11
AFL423 - 8 2026-07-13
AFL432 Aeroflot Russian Airlines 5 2026-06-27
AFL1300 Aeroflot Russian Airlines 4 2026-06-17
AFL660 - 3 2026-04-15
AFL422 - 3 2026-07-12
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AFL423 - Jul 13, 13:35 UTCJul 14, 04:10 UTC14h 35m
2026-07-12 AFL422 - Jul 12, 18:30 UTCJul 13, 11:00 UTC16h 30m
2026-07-11 AFL1751 - Jul 11, 08:40 UTCJul 11, 18:40 UTC10h 0m
2026-07-10 AFL1751 - Jul 10, 10:05 UTCJul 11, 10:00 UTC23h 56m
2026-07-09 AFL1751 - Jul 9, 16:05 UTCJul 10, 10:30 UTC18h 25m
2026-07-09 AFL423 - Jul 9, 14:05 UTCJul 10, 10:30 UTC20h 25m
2026-07-09 AFL423 - Jul 9, 13:45 UTCJul 10, 10:30 UTC20h 45m
2026-07-09 AFL423 - Jul 9, 10:05 UTCJul 10, 10:00 UTC23h 55m
2026-07-09 AFL423 - Jul 9, 08:45 UTCJul 9, 23:10 UTC14h 25m
2026-07-09 AFL422 SVO → SVO Jul 9, 05:40 UTCJul 9, 06:35 UTC55m
2026-07-07 AFL423 - Jul 7, 22:05 UTCJul 8, 16:50 UTC18h 45m
2026-07-07 AFL423 - Jul 7, 21:25 UTCJul 8, 16:50 UTC19h 25m
2026-07-07 AFL480 - Jul 7, 01:40 UTCJul 7, 19:10 UTC17h 30m
2026-07-06 AFL484 SVO → SVO Jul 6, 21:35 UTCJul 6, 22:25 UTC50m
2026-07-06 AFL423 - Jul 6, 08:40 UTCJul 6, 15:10 UTC6h 30m
2026-07-06 AFL422 SVO → SVO Jul 6, 04:40 UTCJul 6, 05:30 UTC50m
2026-07-05 AFL427 - Jul 5, 12:40 UTCJul 5, 15:25 UTC2h 45m
2026-07-05 AFL426 - Jul 5, 04:40 UTCJul 5, 10:15 UTC5h 35m
2026-07-04 AFL481 - Jul 4, 21:10 UTCJul 5, 00:05 UTC2h 55m
2026-07-04 AFL1751 - Jul 4, 08:35 UTCJul 4, 18:40 UTC10h 5m
2026-07-03 AFL1751 - Jul 3, 10:05 UTCJul 4, 10:00 UTC23h 55m
2026-07-03 AFL1751 - Jul 3, 09:15 UTCJul 3, 10:45 UTC1h 30m
2026-07-02 AFL1751 - Jul 2, 10:10 UTCJul 3, 09:55 UTC23h 45m
2026-07-01 AFL1751 - Jul 1, 22:35 UTCJul 2, 10:50 UTC12h 15m
2026-07-01 AFL427 - Jul 1, 12:40 UTCJul 1, 15:30 UTC2h 50m
2026-06-30 AFL431 - Jun 30, 14:05 UTCJul 1, 10:00 UTC19h 55m
2026-06-30 AFL431 - Jun 30, 13:50 UTCJul 1, 10:00 UTC20h 10m
2026-06-29 AFL431 - Jun 29, 20:04 UTCJun 30, 20:00 UTC23h 56m
2026-06-29 AFL431 - Jun 29, 18:05 UTCJun 30, 18:00 UTC23h 56m
2026-06-29 AFL431 - Jun 29, 17:45 UTCJun 30, 15:20 UTC21h 36m
2026-06-28 AFL430 - Jun 28, 20:04 UTCJun 29, 15:09 UTC19h 5m
2026-06-28 AFL431 - Jun 28, 18:05 UTCJun 29, 15:09 UTC21h 5m
2026-06-28 AFL431 - Jun 28, 17:50 UTCJun 29, 15:09 UTC21h 20m
2026-06-28 AFL430 - Jun 28, 12:55 UTCJun 28, 15:14 UTC2h 20m
2026-06-27 AFL430 - Jun 27, 18:09 UTCJun 28, 15:14 UTC21h 5m
2026-06-27 AFL433 HRG → SVO Jun 27, 16:14 UTCJun 28, 15:14 UTC23h 0m
2026-06-27 AFL432 SVO → HRG Jun 27, 12:34 UTCJun 27, 13:55 UTC1h 20m
2026-06-27 AFL432 SVO → HRG Jun 27, 08:29 UTCJun 27, 09:15 UTC45m
2026-06-26 AFL431 SSH → SVO Jun 26, 17:59 UTCJun 26, 20:55 UTC2h 55m
2026-06-26 AFL430 - Jun 26, 12:39 UTCJun 26, 15:20 UTC2h 40m
2026-06-25 AFL430 - Jun 25, 18:04 UTCJun 26, 15:20 UTC21h 15m
2026-06-25 AFL430 - Jun 25, 17:49 UTCJun 26, 15:20 UTC21h 30m
2026-06-24 AFL430 - Jun 24, 20:44 UTCJun 25, 15:24 UTC18h 40m
2026-06-24 AFL421 - Jun 24, 18:05 UTCJun 25, 15:24 UTC21h 20m
2026-06-24 AFL421 - Jun 24, 14:09 UTCJun 25, 13:59 UTC23h 50m
2026-06-24 AFL420 - Jun 24, 10:10 UTCJun 24, 20:54 UTC10h 45m
2026-06-23 AFL431 SSH → SVO Jun 23, 17:59 UTCJun 23, 19:29 UTC1h 30m
2026-06-23 AFL430 - Jun 23, 13:29 UTCJun 23, 14:55 UTC1h 25m
2026-06-22 AFL431 SSH → SVO Jun 22, 18:04 UTCJun 23, 14:55 UTC20h 50m
2026-06-22 AFL430 - Jun 22, 14:40 UTCJun 22, 16:05 UTC1h 25m

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 2h 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, AFL430, AFL421, AFL420, AFL433.