Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151FF5

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73717 · AIRBUS A-321

Hex
151FF5
Octal
05217765
Decimal
1,384,437
Country
RU
Tail
RA-73717
Type
A321
No current signal · last broadcast 9h ago
Flights observed
104
Distinct callsigns
20
Country
RU
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 151FF5.

Country allocation

The ICAO 24-bit address 151FF5 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
AFL2142 Aeroflot Russian Airlines 9 2026-05-19
AFL2143 Aeroflot Russian Airlines 7 2026-05-19
AFL1860 Aeroflot Russian Airlines 6 2026-05-25
AFL615 Aeroflot Russian Airlines 4 2026-05-25
AFL2145 Aeroflot Russian Airlines 4 2026-05-16
AFL2144 Aeroflot Russian Airlines 3 2026-05-16
AFL2134 Aeroflot Russian Airlines 3 2026-05-28
AFL2124 Aeroflot Russian Airlines 3 2026-04-25
AFL1865 Aeroflot Russian Airlines 3 2026-05-27
AFL1861 Aeroflot Russian Airlines 3 2026-05-25
AFL2170 Aeroflot Russian Airlines 2 2026-05-30
AFL2135 Aeroflot Russian Airlines 2 2026-05-28
AFL1947 Aeroflot Russian Airlines 2 2026-05-08
AFL1887 Aeroflot Russian Airlines 2 2026-05-24
AFL1647 Aeroflot Russian Airlines 2 2026-05-11
AFL1456 Aeroflot Russian Airlines 2 2026-05-23
AFL1450 Aeroflot Russian Airlines 2 2026-04-25
AFL1383 Aeroflot Russian Airlines 2 2026-05-24
AFL1024 Aeroflot Russian Airlines 2 2026-05-20
AFL1016 Aeroflot Russian Airlines 2 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFL2171 IST → SVO May 30, 05:05 UTCMay 30, 05:40 UTC35m
2026-05-30 AFL2170 SVO → IST May 30, 02:45 UTCMay 30, 02:55 UTC10m
2026-05-29 AFL2170 SVO → IST May 29, 22:25 UTCMay 29, 23:00 UTC35m
2026-05-29 AFL1011 KGD → SVO May 29, 06:50 UTCMay 29, 20:40 UTC13h 50m
2026-05-28 AFL2135 IST → SVO May 28, 20:50 UTCMay 28, 21:20 UTC30m
2026-05-28 AFL2134 SVO → IST May 28, 18:20 UTCMay 28, 18:30 UTC10m
2026-05-28 AFL2134 SVO → IST May 28, 14:00 UTCMay 28, 14:30 UTC30m
2026-05-27 AFL1865 EVN → SVO May 27, 18:45 UTCMay 27, 19:10 UTC25m
2026-05-27 AFL1017 KGD → SVO May 27, 10:25 UTCMay 27, 12:05 UTC1h 40m
2026-05-26 AFL1016 SVO → KGD May 26, 20:15 UTCMay 27, 08:10 UTC11h 55m
2026-05-26 AFL1006 SVO → KGD May 26, 17:09 UTCMay 26, 17:55 UTC45m
2026-05-25 AFL1861 EVN → SVO May 25, 17:30 UTCMay 26, 17:15 UTC23h 44m
2026-05-25 AFL615 EVN → KRR May 25, 10:50 UTCMay 25, 11:50 UTC1h 0m
2026-05-25 AFL1860 SVO → EVN May 25, 08:35 UTCMay 25, 08:50 UTC15m
2026-05-25 AFL1860 SVO → EVN May 25, 05:50 UTCMay 25, 06:30 UTC40m
2026-05-24 AFL1887 FRU → SVO May 24, 15:45 UTCMay 24, 16:15 UTC30m
2026-05-24 AFL1383 HMA → SVO May 24, 03:20 UTCMay 24, 15:10 UTC11h 50m
2026-05-23 AFL1247 REN → SVO May 23, 19:40 UTCMay 23, 20:05 UTC25m
2026-05-23 AFL1246 SVO → REN May 23, 15:05 UTCMay 23, 19:05 UTC4h 0m
2026-05-23 AFL1457 KEJ → SVO May 23, 03:15 UTCMay 23, 03:50 UTC35m
2026-05-23 AFL1456 SVO → KEJ May 23, 01:25 UTCMay 23, 01:55 UTC30m
2026-05-22 AFL1456 SVO → KEJ May 22, 22:05 UTCMay 22, 22:20 UTC15m
2026-05-22 AFL1485 KJA → SVO May 22, 01:10 UTCMay 22, 16:25 UTC15h 15m
2026-05-21 AFL1025 KGD → SVO May 21, 15:30 UTCMay 22, 14:20 UTC22h 50m
2026-05-20 AFL1024 SVO → KGD May 20, 19:50 UTCMay 21, 13:40 UTC17h 50m
2026-05-20 AFL1024 SVO → KGD May 20, 19:00 UTCMay 21, 13:40 UTC18h 40m
2026-05-19 AFL2143 AYT → SVO May 19, 11:10 UTCMay 19, 20:00 UTC8h 50m
2026-05-19 AFL2142 SVO → AYT May 19, 07:45 UTCMay 19, 08:15 UTC30m
2026-05-16 AFL2145 AYT → SVO May 16, 17:30 UTCMay 16, 19:50 UTC2h 20m
2026-05-16 AFL2144 SVO → AYT May 16, 15:25 UTCMay 16, 15:40 UTC15m
2026-05-15 AFL1882 SVO → FRU May 15, 20:10 UTCMay 16, 03:35 UTC7h 25m
2026-05-15 AFL1887 FRU → SVO May 15, 16:15 UTCMay 15, 16:30 UTC15m
2026-05-15 AFL1886 SVO → FRU May 15, 06:35 UTCMay 15, 15:25 UTC8h 49m
2026-05-15 AFL1009 KGD → SVO May 15, 01:30 UTCMay 15, 03:20 UTC1h 50m
2026-05-14 AFL1008 SVO → KGD May 14, 11:55 UTCMay 14, 20:00 UTC8h 5m
2026-05-13 AFL1324 SVO → MMK May 13, 13:45 UTCMay 13, 17:05 UTC3h 20m
2026-05-12 AFL1269 KZN → SVO May 12, 12:45 UTCMay 12, 13:10 UTC25m
2026-05-11 AFL2161 AYT → SVO May 11, 16:05 UTCMay 11, 18:30 UTC2h 26m
2026-05-11 AFL1647 NJC → SVO May 11, 06:30 UTCMay 11, 13:05 UTC6h 35m
2026-05-10 AFL1647 NJC → SVO May 10, 13:19 UTCMay 11, 13:05 UTC23h 45m
2026-05-10 AFL2143 AYT → SVO May 10, 11:30 UTCMay 11, 08:00 UTC20h 30m
2026-05-10 AFL2142 SVO → AYT May 10, 09:40 UTCMay 10, 09:55 UTC15m
2026-05-10 AFL2142 SVO → AYT May 10, 07:40 UTCMay 10, 08:40 UTC1h 0m
2026-05-09 AFL1865 EVN → SVO May 9, 21:50 UTCMay 9, 22:05 UTC15m
2026-05-09 AFL1865 EVN → SVO May 9, 18:40 UTCMay 9, 21:14 UTC2h 35m
2026-05-09 AFL1864 SVO → EVN May 9, 16:15 UTCMay 9, 17:10 UTC55m
2026-05-09 AFL1016 SVO → KGD May 9, 06:10 UTCMay 9, 08:25 UTC2h 15m
2026-05-08 AFL1947 ALA → SVO May 8, 08:05 UTCMay 8, 17:00 UTC8h 55m
2026-05-06 AFL2145 AYT → SVO May 6, 21:20 UTCMay 6, 21:35 UTC15m
2026-05-06 AFL2145 AYT → SVO May 6, 17:25 UTCMay 6, 19:15 UTC1h 49m

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-73717 page for operator, model, and routing details .

Mode-S 151FF5 frequently asked

What is Mode-S code 151FF5?
151FF5 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73717.
Where is Mode-S 151FF5 registered?
Mode-S code 151FF5 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FF5 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FF5, octal 05217765, decimal 1,384,437.
What flights does 151FF5 operate?
Mode-S 151FF5 has broadcast 20 distinct callsigns, including AFL2142, AFL2143, AFL1860, AFL615, AFL2145.