Apparatus

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sensors Mode-S transponder

151FFA

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73722 · AIRBUS A-321

Hex
151FFA
Octal
05217772
Decimal
1,384,442
Country
RU
Tail
RA-73722
Type
A321
No current signal · last broadcast Jul 26, 13:05 UTC
Flights observed
169
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 13:05 UTC

Last known position

Most recent position reported by Mode-S 151FFA.

Country allocation

The ICAO 24-bit address 151FFA 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
AFL1458 Aeroflot Russian Airlines 7 2026-07-21
AFL1451 Aeroflot Russian Airlines 6 2026-06-14
AFL1016 - 6 2026-07-20
AFL1009 - 6 2026-06-25
AFL1505 Aeroflot Russian Airlines 5 2026-06-03
AFL1459 - 5 2026-07-22
AFL1017 - 5 2026-07-20
AFL1211 - 4 2026-06-13
AFL1008 - 4 2026-06-24
AFL1006 Aeroflot Russian Airlines 4 2026-06-10
AFL1457 - 3 2026-06-29
AFL1450 - 3 2026-06-13
AFL1383 - 3 2026-06-19
AFL1319 Aeroflot Russian Airlines 3 2026-05-10
AFL1307 Aeroflot Russian Airlines 3 2026-05-19
AFL1025 Aeroflot Russian Airlines 3 2026-06-21
AFL1015 Aeroflot Russian Airlines 3 2026-07-26
AFL1014 Aeroflot Russian Airlines 3 2026-07-26
AFL1011 Aeroflot Russian Airlines 3 2026-05-27
AFL1001 Aeroflot Russian Airlines 3 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1768 - Jul 26, 12:55 UTCJul 26, 13:05 UTC10m
2026-07-26 AFL1015 KGD → SVO Jul 26, 09:25 UTCJul 26, 10:20 UTC55m
2026-07-26 AFL1014 SVO → KGD Jul 26, 05:15 UTCJul 26, 07:20 UTC2h 6m
2026-07-24 AFL1015 KGD → SVO Jul 24, 10:20 UTCJul 24, 18:20 UTC8h 0m
2026-07-24 AFL1014 SVO → KGD Jul 24, 07:30 UTCJul 24, 08:20 UTC50m
2026-07-22 AFL1459 - Jul 22, 01:20 UTCJul 22, 01:45 UTC25m
2026-07-21 AFL1458 SVO → NOZ Jul 21, 23:35 UTCJul 21, 23:55 UTC20m
2026-07-21 AFL1003 KGD → SVO Jul 21, 11:35 UTCJul 21, 13:30 UTC1h 55m
2026-07-20 AFL1017 - Jul 20, 10:35 UTCJul 20, 12:30 UTC1h 55m
2026-07-20 AFL1016 - Jul 20, 06:30 UTCJul 20, 08:35 UTC2h 5m
2026-07-18 AFL1017 - Jul 18, 12:25 UTCJul 18, 14:15 UTC1h 50m
2026-07-18 AFL1016 - Jul 18, 03:45 UTCJul 18, 10:30 UTC6h 45m
2026-07-16 AFL1459 - Jul 16, 01:25 UTCJul 16, 02:00 UTC35m
2026-07-15 AFL1458 - Jul 15, 23:50 UTCJul 16, 00:00 UTC10m
2026-07-15 AFL1458 - Jul 15, 21:25 UTCJul 15, 21:40 UTC15m
2026-07-15 AFL1458 - Jul 15, 20:05 UTCJul 15, 20:35 UTC30m
2026-07-15 AFL1152 - Jul 15, 07:30 UTCJul 15, 08:00 UTC30m
2026-07-15 AFL1152 SVO → SVO Jul 15, 04:45 UTCJul 15, 05:20 UTC35m
2026-07-14 AFL1244 - Jul 14, 23:00 UTCJul 14, 23:10 UTC10m
2026-07-14 AFL1244 SVO → SVO Jul 14, 21:55 UTCJul 14, 22:20 UTC25m
2026-07-12 AFL1140 SVO → AER Jul 12, 19:15 UTCJul 12, 19:35 UTC20m
2026-07-12 AFL1032 - Jul 12, 07:01 UTCJul 12, 07:45 UTC45m
2026-07-11 AFL1028 - Jul 11, 09:30 UTCJul 12, 07:45 UTC22h 15m
2026-07-09 AFL1208 - Jul 9, 07:35 UTCJul 9, 08:10 UTC35m
2026-07-09 AFL1459 - Jul 9, 01:40 UTCJul 9, 02:05 UTC25m
2026-07-08 AFL1458 - Jul 8, 20:05 UTCJul 9, 00:05 UTC4h 0m
2026-07-08 AFL025 - Jul 8, 16:45 UTCJul 8, 17:05 UTC20m
2026-07-07 AFL1148 - Jul 7, 08:55 UTCJul 7, 09:15 UTC20m
2026-07-06 AFL1015 - Jul 6, 13:10 UTCJul 7, 09:15 UTC20h 5m
2026-07-05 AFL1014 - Jul 5, 19:35 UTCJul 6, 11:15 UTC15h 40m
2026-07-05 AFL1312 SVO → SVO Jul 5, 08:25 UTCJul 5, 08:55 UTC30m
2026-07-05 AFL1511 - Jul 5, 01:15 UTCJul 5, 01:45 UTC30m
2026-07-02 AFL1112 SVO → SVO Jul 2, 07:30 UTCJul 2, 07:50 UTC20m
2026-07-01 AFL1420 SVO → CEK Jul 1, 19:15 UTCJul 1, 19:35 UTC20m
2026-07-01 AFL1459 - Jul 1, 01:25 UTCJul 1, 01:55 UTC30m
2026-06-30 AFL1458 - Jun 30, 23:30 UTCJul 1, 00:00 UTC30m
2026-06-30 AFL1458 - Jun 30, 02:35 UTCJul 1, 00:00 UTC21h 25m
2026-06-30 AFL1459 - Jun 30, 02:15 UTCJul 1, 00:00 UTC21h 45m
2026-06-29 AFL1457 - Jun 29, 03:14 UTCJun 29, 03:44 UTC30m
2026-06-29 AFL1456 - Jun 29, 01:20 UTCJun 29, 01:55 UTC35m
2026-06-27 AFL1457 - Jun 27, 03:20 UTCJun 27, 03:49 UTC30m
2026-06-27 AFL1456 - Jun 27, 01:35 UTCJun 27, 02:04 UTC30m
2026-06-25 AFL1009 - Jun 25, 01:40 UTCJun 25, 02:30 UTC50m
2026-06-24 AFL1008 - Jun 24, 19:29 UTCJun 24, 19:49 UTC20m
2026-06-22 AFL1457 - Jun 22, 03:19 UTCJun 22, 06:45 UTC3h 25m
2026-06-21 AFL1025 KGD → SVO Jun 21, 15:54 UTCJun 22, 02:00 UTC10h 5m
2026-06-21 AFL1025 KGD → SVO Jun 21, 05:35 UTCJun 22, 02:00 UTC20h 25m
2026-06-20 AFL1019 - Jun 20, 13:14 UTCJun 20, 14:29 UTC1h 15m
2026-06-20 AFL1018 - Jun 20, 10:25 UTCJun 20, 11:09 UTC45m
2026-06-19 AFL1383 - Jun 19, 06:35 UTCJun 19, 06:54 UTC20m

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-73722 page for operator, model, and routing details .

Mode-S 151FFA frequently asked

What is Mode-S code 151FFA?
151FFA is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73722.
Where is Mode-S 151FFA registered?
Mode-S code 151FFA is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FFA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FFA, octal 05217772, decimal 1,384,442.
What flights does 151FFA operate?
Mode-S 151FFA has broadcast 20 distinct callsigns, including AFL1458, AFL1451, AFL1016, AFL1009, AFL1505.