Apparatus

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sensors Mode-S transponder

151FFE

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73726 · AIRBUS A-321

Hex
151FFE
Octal
05217776
Decimal
1,384,446
Country
RU
Tail
RA-73726
Type
A321
No current signal · last broadcast 10h ago
Flights observed
46
Distinct callsigns
20
Country
RU
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 151FFE.

Country allocation

The ICAO 24-bit address 151FFE 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
AFL615 Aeroflot Russian Airlines 3 2026-05-26
AFL1860 Aeroflot Russian Airlines 3 2026-05-26
AFL1975 Aeroflot Russian Airlines 2 2026-04-19
AFL1861 Aeroflot Russian Airlines 2 2026-05-12
AFL1486 Aeroflot Russian Airlines 2 2026-04-15
AFL1457 Aeroflot Russian Airlines 2 2026-04-19
AFL1456 Aeroflot Russian Airlines 2 2026-04-19
AFL1417 Aeroflot Russian Airlines 2 2026-05-01
AFL1219 Aeroflot Russian Airlines 2 2026-04-25
AFL1011 Aeroflot Russian Airlines 2 2026-04-17
AFL1009 Aeroflot Russian Airlines 2 2026-05-28
AFL1008 Aeroflot Russian Airlines 2 2026-05-27
ALL1860 - 1 2026-04-30
AFL614 - 1 2026-04-18
AFL1882 Aeroflot Russian Airlines 1 2026-05-29
AFL1865 Aeroflot Russian Airlines 1 2026-05-10
AFL1831 Aeroflot Russian Airlines 1 2026-05-14
AFL1534 Aeroflot Russian Airlines 1 2026-04-16
AFL1485 Aeroflot Russian Airlines 1 2026-05-06
AFL1416 Aeroflot Russian Airlines 1 2026-05-01

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL1882 SVO → FRU May 29, 18:55 UTCMay 29, 19:25 UTC30m
2026-05-29 AFL1412 SVO → SVX May 29, 10:15 UTCMay 29, 10:50 UTC35m
2026-05-28 AFL1009 KGD → SVO May 28, 01:45 UTCMay 28, 03:05 UTC1h 20m
2026-05-27 AFL1008 SVO → KGD May 27, 08:25 UTCMay 27, 19:40 UTC11h 15m
2026-05-27 AFL1383 HMA → SVO May 27, 03:20 UTCMay 27, 03:39 UTC20m
2026-05-26 AFL615 EVN → KRR May 26, 11:05 UTCMay 26, 11:44 UTC40m
2026-05-26 AFL1860 SVO → EVN May 26, 08:34 UTCMay 26, 08:54 UTC20m
2026-05-25 AFL1125 AER → SVO May 25, 20:34 UTCMay 25, 21:04 UTC30m
2026-05-24 AFL1128 SVO → AER May 24, 16:00 UTCMay 24, 16:25 UTC25m
2026-05-21 AFL1008 SVO → KGD May 21, 19:50 UTCMay 21, 20:25 UTC35m
2026-05-18 AFL1001 KGD → SVO May 18, 07:30 UTCMay 18, 13:25 UTC5h 55m
2026-05-18 AFL1000 SVO → KGD May 18, 03:40 UTCMay 18, 05:50 UTC2h 10m
2026-05-14 AFL1831 MSQ → SVO May 14, 08:50 UTCMay 14, 09:50 UTC1h 0m
2026-05-12 AFL1861 EVN → SVO May 12, 16:05 UTCMay 12, 17:00 UTC55m
2026-05-12 AFL1860 SVO → EVN May 12, 08:20 UTCMay 12, 08:30 UTC10m
2026-05-10 AFL1865 EVN → SVO May 10, 18:39 UTCMay 11, 08:30 UTC13h 50m
2026-05-09 AFL1176 SVO → AER May 9, 05:15 UTCMay 9, 05:45 UTC30m
2026-05-08 AFL1003 KGD → SVO May 8, 11:34 UTCMay 8, 12:30 UTC55m
2026-05-06 AFL1485 KJA → SVO May 6, 00:40 UTCMay 6, 06:40 UTC6h 0m
2026-05-01 AFL1417 SVX → SVO May 1, 10:10 UTCMay 1, 11:10 UTC1h 0m
2026-05-01 AFL1416 SVO → SVX May 1, 07:45 UTCMay 1, 08:15 UTC30m
2026-04-30 AFL615 EVN → KRR Apr 30, 10:10 UTCApr 30, 11:05 UTC55m
2026-04-30 AFL1860 SVO → EVN Apr 30, 08:00 UTCApr 30, 08:10 UTC10m
2026-04-30 ALL1860 SVO → SVO Apr 30, 05:25 UTCApr 30, 05:55 UTC30m
2026-04-28 AFL1417 SVX → SVO Apr 28, 11:35 UTCApr 28, 13:20 UTC1h 45m
2026-04-25 AFL1219 KUF → SVO Apr 25, 11:10 UTCApr 25, 11:30 UTC20m
2026-04-25 AFL1219 KUF → SVO Apr 25, 10:10 UTCApr 25, 10:20 UTC10m
2026-04-24 AFL1108 SVO → KRR Apr 24, 05:50 UTCApr 24, 06:20 UTC30m
2026-04-19 AFL1975 TAS → SVO Apr 19, 20:25 UTCApr 19, 20:50 UTC25m
2026-04-19 AFL1975 TAS → SVO Apr 19, 19:20 UTCApr 19, 19:40 UTC20m
2026-04-19 AFL1457 KEJ → SVO Apr 19, 07:25 UTCApr 19, 07:35 UTC10m
2026-04-19 AFL1457 KEJ → SVO Apr 19, 03:00 UTCApr 19, 05:25 UTC2h 25m
2026-04-19 AFL1456 SVO → KEJ Apr 19, 00:50 UTCApr 19, 01:20 UTC30m
2026-04-18 AFL1456 SVO → KEJ Apr 18, 21:55 UTCApr 18, 22:15 UTC20m
2026-04-18 AFL1861 - Apr 18, 16:15 UTCApr 18, 16:40 UTC25m
2026-04-18 AFL614 - Apr 18, 14:15 UTCApr 18, 14:35 UTC20m
2026-04-18 AFL615 EVN → KRR Apr 18, 10:05 UTCApr 18, 10:55 UTC50m
2026-04-17 AFL1011 KGD → SVO Apr 17, 19:25 UTCApr 17, 20:10 UTC45m
2026-04-17 AFL1011 KGD → SVO Apr 17, 18:15 UTCApr 17, 19:20 UTC1h 5m
2026-04-17 AFL1010 - Apr 17, 15:35 UTCApr 17, 16:50 UTC1h 15m
2026-04-16 AFL1534 SVO → CEK Apr 16, 04:10 UTCApr 16, 04:40 UTC30m
2026-04-15 AFL1486 SVO → KJA Apr 15, 10:30 UTCApr 15, 10:50 UTC20m
2026-04-15 AFL1486 SVO → KJA Apr 15, 07:01 UTCApr 15, 07:25 UTC25m
2026-04-13 AFL1017 - Apr 13, 13:55 UTCApr 13, 15:30 UTC1h 35m
2026-04-13 AFL1016 - Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-13 AFL1009 - Apr 13, 01:35 UTCApr 13, 02:55 UTC1h 20m

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-73726 page for operator, model, and routing details .

Mode-S 151FFE frequently asked

What is Mode-S code 151FFE?
151FFE is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73726.
Where is Mode-S 151FFE registered?
Mode-S code 151FFE is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FFE broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FFE, octal 05217776, decimal 1,384,446.
What flights does 151FFE operate?
Mode-S 151FFE has broadcast 20 distinct callsigns, including AFL615, AFL1860, AFL1975, AFL1861, AFL1486.