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 1h ago
Flights observed
85
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

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
AFL1009 Aeroflot Russian Airlines 5 2026-05-06
AFL1016 Aeroflot Russian Airlines 4 2026-05-26
AFL1319 Aeroflot Russian Airlines 3 2026-05-10
AFL1307 Aeroflot Russian Airlines 3 2026-05-19
AFL1017 Aeroflot Russian Airlines 3 2026-05-26
AFL1011 Aeroflot Russian Airlines 3 2026-05-27
AFL1008 Aeroflot Russian Airlines 3 2026-05-08
AFL1006 Aeroflot Russian Airlines 3 2026-05-23
AFL1001 Aeroflot Russian Airlines 3 2026-05-28
AFL1833 Aeroflot Russian Airlines 2 2026-04-26
AFL1569 Aeroflot Russian Airlines 2 2026-04-26
AFL1530 Aeroflot Russian Airlines 2 2026-04-29
AFL1505 Aeroflot Russian Airlines 2 2026-04-21
AFL1451 Aeroflot Russian Airlines 2 2026-05-22
AFL1405 Aeroflot Russian Airlines 2 2026-04-24
AFL1306 Aeroflot Russian Airlines 2 2026-05-18
AFL1211 Aeroflot Russian Airlines 2 2026-05-24
AFL1072 Aeroflot Russian Airlines 2 2026-05-14
AFL1010 Aeroflot Russian Airlines 2 2026-05-27
AFL1007 Aeroflot Russian Airlines 2 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFL1555 OVB → SVO May 30, 01:00 UTCMay 30, 01:10 UTC10m
2026-05-29 AFL1025 KGD → SVO May 29, 15:40 UTCMay 29, 16:45 UTC1h 5m
2026-05-29 AFL1485 KJA → SVO May 29, 03:15 UTCMay 29, 13:25 UTC10h 10m
2026-05-28 AFL1001 KGD → SVO May 28, 08:35 UTCMay 29, 06:00 UTC21h 25m
2026-05-28 AFL1001 KGD → SVO May 28, 07:45 UTCMay 29, 06:00 UTC22h 15m
2026-05-27 AFL1011 KGD → SVO May 27, 18:15 UTCMay 28, 09:30 UTC15h 15m
2026-05-27 AFL1010 SVO → KGD May 27, 08:05 UTCMay 27, 16:35 UTC8h 30m
2026-05-26 AFL1017 KGD → SVO May 26, 10:34 UTCMay 27, 08:15 UTC21h 40m
2026-05-26 AFL1017 KGD → SVO May 26, 10:10 UTCMay 26, 11:50 UTC1h 40m
2026-05-26 AFL1016 SVO → KGD May 26, 07:40 UTCMay 26, 08:24 UTC45m
2026-05-25 AFL1016 SVO → KGD May 25, 09:25 UTCMay 26, 08:24 UTC23h 0m
2026-05-24 AFL1192 SVO → KZN May 24, 11:20 UTCMay 24, 11:50 UTC30m
2026-05-24 AFL1211 KUF → SVO May 24, 09:25 UTCMay 24, 09:45 UTC20m
2026-05-24 AFL1211 KUF → SVO May 24, 08:40 UTCMay 24, 08:50 UTC10m
2026-05-23 AFL1007 KGD → SVO May 23, 20:45 UTCMay 23, 22:15 UTC1h 30m
2026-05-23 AFL1006 SVO → KGD May 23, 16:45 UTCMay 23, 18:50 UTC2h 5m
2026-05-22 AFL1451 KEJ → SVO May 22, 01:35 UTCMay 22, 04:35 UTC3h 0m
2026-05-21 AFL1001 KGD → SVO May 21, 07:40 UTCMay 21, 23:50 UTC16h 10m
2026-05-21 AFL1000 SVO → KGD May 21, 03:45 UTCMay 21, 05:45 UTC2h 0m
2026-05-19 AFL1307 OVB → SVO May 19, 05:35 UTCMay 19, 12:05 UTC6h 30m
2026-05-18 AFL1306 SVO → OVB May 18, 23:40 UTCMay 19, 01:35 UTC1h 55m
2026-05-17 AFL1006 SVO → KGD May 17, 16:30 UTCMay 17, 17:55 UTC1h 25m
2026-05-16 AFL1007 KGD → SVO May 16, 19:35 UTCMay 16, 21:35 UTC2h 0m
2026-05-16 AFL1006 SVO → KGD May 16, 17:25 UTCMay 16, 18:05 UTC40m
2026-05-15 AFL1011 KGD → SVO May 15, 15:00 UTCMay 15, 20:00 UTC5h 0m
2026-05-15 AFL1002 SVO → KGD May 15, 07:10 UTCMay 15, 09:20 UTC2h 10m
2026-05-14 AFL1072 SVO → KGD May 14, 14:15 UTCMay 14, 23:10 UTC8h 55m
2026-05-13 AFL1451 KEJ → SVO May 13, 01:25 UTCMay 13, 02:05 UTC40m
2026-05-12 AFL1450 SVO → KEJ May 12, 23:50 UTCMay 12, 23:55 UTC5m
2026-05-11 AFL1072 SVO → KGD May 11, 22:05 UTCMay 11, 22:15 UTC10m
2026-05-11 AFL1325 MMK → SVO May 11, 17:30 UTCMay 11, 18:05 UTC35m
2026-05-11 AFL1517 SGC → SVO May 11, 09:45 UTCMay 11, 10:10 UTC25m
2026-05-10 AFL1004 SVO → KGD May 10, 11:45 UTCMay 10, 13:10 UTC1h 25m
2026-05-10 AFL1319 MMK → SVO May 10, 07:15 UTCMay 10, 08:54 UTC1h 40m
2026-05-10 AFL1318 SVO → MMK May 10, 03:25 UTCMay 10, 03:45 UTC20m
2026-05-09 AFL1011 KGD → SVO May 9, 18:10 UTCMay 9, 20:15 UTC2h 5m
2026-05-09 AFL1010 SVO → KGD May 9, 15:40 UTCMay 9, 16:45 UTC1h 5m
2026-05-09 AFL1002 SVO → KGD May 9, 07:15 UTCMay 9, 09:20 UTC2h 5m
2026-05-08 AFL1008 SVO → KGD May 8, 19:05 UTCMay 8, 19:45 UTC40m
2026-05-07 AFL1008 SVO → KGD May 7, 21:10 UTCMay 8, 19:45 UTC22h 35m
2026-05-06 AFL1009 KGD → SVO May 6, 01:15 UTCMay 6, 03:05 UTC1h 50m
2026-05-05 AFL1780 SVO → STW May 5, 11:40 UTCMay 5, 12:20 UTC40m
2026-05-03 AFL1009 KGD → SVO May 3, 07:50 UTCMay 3, 09:00 UTC1h 10m
2026-05-01 AFL1232 SVO → UFA May 1, 12:00 UTCMay 1, 15:20 UTC3h 20m
2026-04-30 AFL1304 SVO → MRV Apr 30, 06:00 UTCApr 30, 06:25 UTC25m
2026-04-29 AFL1531 TOF → SVO Apr 29, 01:59 UTCApr 29, 02:24 UTC25m
2026-04-29 AFL1530 SVO → TOF Apr 29, 00:00 UTCApr 29, 00:20 UTC20m
2026-04-28 AFL1530 SVO → TOF Apr 28, 20:55 UTCApr 28, 21:15 UTC20m
2026-04-28 AFL1887 FRU → SVO Apr 28, 07:50 UTCApr 28, 17:30 UTC9h 40m
2026-04-27 AFL1056 SVO → MCX Apr 27, 14:35 UTCApr 28, 08:50 UTC18h 15m

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 1h ago.
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 AFL1009, AFL1016, AFL1319, AFL1307, AFL1017.