Apparatus

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sensors Mode-S transponder

151FF6

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73718 · AIRBUS A-321

Hex
151FF6
Octal
05217766
Decimal
1,384,438
Country
RU
Tail
RA-73718
Type
A321
No current signal · last broadcast 1h ago
Flights observed
102
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 151FF6.

Country allocation

The ICAO 24-bit address 151FF6 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
AFL2143 Aeroflot Russian Airlines 7 2026-05-29
AFL2142 Aeroflot Russian Airlines 7 2026-05-17
AFL1861 Aeroflot Russian Airlines 7 2026-05-21
AFL615 Aeroflot Russian Airlines 6 2026-05-21
AFL2144 Aeroflot Russian Airlines 6 2026-05-28
AFL614 Aeroflot Russian Airlines 4 2026-05-16
AFL2145 Aeroflot Russian Airlines 3 2026-05-28
AFL1882 Aeroflot Russian Airlines 3 2026-05-25
AFL1513 Aeroflot Russian Airlines 3 2026-04-27
AFL1975 Aeroflot Russian Airlines 2 2026-04-28
AFL1860 Aeroflot Russian Airlines 2 2026-05-13
AFL1482 Aeroflot Russian Airlines 2 2026-05-29
AFL1416 Aeroflot Russian Airlines 2 2026-05-15
AFL1326 - 2 2026-04-16
AFL1208 Aeroflot Russian Airlines 2 2026-05-09
AFL1148 Aeroflot Russian Airlines 2 2026-04-29
AFL1019 Aeroflot Russian Airlines 2 2026-05-24
AFL1018 Aeroflot Russian Airlines 2 2026-05-24
AFL1017 - 2 2026-04-15
AFL1016 Aeroflot Russian Airlines 2 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL1482 SVO → KJA May 29, 22:10 UTCMay 30, 05:05 UTC6h 55m
2026-05-29 AFL2143 AYT → SVO May 29, 11:35 UTCMay 29, 13:25 UTC1h 50m
2026-05-28 AFL2145 AYT → SVO May 28, 17:25 UTCMay 29, 09:45 UTC16h 20m
2026-05-28 AFL2144 SVO → AYT May 28, 11:05 UTCMay 28, 15:55 UTC4h 50m
2026-05-28 AFL2171 IST → SVO May 28, 04:50 UTCMay 28, 05:25 UTC35m
2026-05-28 AFL2170 SVO → IST May 28, 02:30 UTCMay 28, 02:45 UTC15m
2026-05-27 AFL2130 SVO → IST May 27, 12:10 UTCMay 27, 12:25 UTC15m
2026-05-26 AFL1946 SVO → ALA May 26, 07:15 UTCMay 26, 15:49 UTC8h 35m
2026-05-25 AFL1882 SVO → FRU May 25, 19:00 UTCMay 25, 19:35 UTC34m
2026-05-25 AFL1887 FRU → SVO May 25, 15:50 UTCMay 25, 16:15 UTC25m
2026-05-25 AFL1886 SVO → FRU May 25, 06:40 UTCMay 25, 07:05 UTC25m
2026-05-25 AFL1647 NJC → SVO May 25, 02:25 UTCMay 25, 02:55 UTC30m
2026-05-24 AFL1646 SVO → NJC May 24, 20:15 UTCMay 24, 20:35 UTC20m
2026-05-24 AFL1019 KGD → SVO May 24, 13:05 UTCMay 24, 15:00 UTC1h 55m
2026-05-24 AFL1018 SVO → KGD May 24, 09:55 UTCMay 24, 11:10 UTC1h 15m
2026-05-23 AFL1122 SVO → AER May 23, 11:40 UTCMay 23, 12:10 UTC30m
2026-05-21 AFL1861 EVN → SVO May 21, 16:55 UTCMay 21, 17:25 UTC30m
2026-05-21 AFL615 EVN → KRR May 21, 10:10 UTCMay 21, 11:00 UTC50m
2026-05-20 AFL1005 KGD → SVO May 20, 17:05 UTCMay 20, 19:10 UTC2h 5m
2026-05-20 AFL1004 SVO → KGD May 20, 14:50 UTCMay 20, 15:45 UTC55m
2026-05-18 AFL1130 SVO → AER May 18, 16:30 UTCMay 18, 17:00 UTC30m
2026-05-17 AFL2143 AYT → SVO May 17, 16:45 UTCMay 18, 10:30 UTC17h 45m
2026-05-17 AFL2143 AYT → SVO May 17, 15:55 UTCMay 17, 16:10 UTC15m
2026-05-17 AFL2142 SVO → AYT May 17, 13:40 UTCMay 17, 14:10 UTC30m
2026-05-16 AFL1861 EVN → SVO May 16, 17:01 UTCMay 16, 18:00 UTC1h 0m
2026-05-16 AFL614 KRR → EVN May 16, 15:10 UTCMay 16, 15:20 UTC10m
2026-05-16 AFL615 EVN → KRR May 16, 10:46 UTCMay 16, 11:35 UTC50m
2026-05-15 AFL1414 SVO → SVX May 15, 16:40 UTCMay 16, 09:06 UTC16h 26m
2026-05-15 AFL1416 SVO → SVX May 15, 08:00 UTCMay 15, 16:50 UTC8h 49m
2026-05-15 AFL1416 SVO → SVX May 15, 06:45 UTCMay 15, 07:10 UTC25m
2026-05-14 AFL2143 AYT → SVO May 14, 11:35 UTCMay 14, 13:50 UTC2h 15m
2026-05-14 AFL2142 SVO → AYT May 14, 09:40 UTCMay 14, 09:55 UTC15m
2026-05-14 AFL2142 SVO → AYT May 14, 05:00 UTCMay 14, 05:40 UTC40m
2026-05-13 AFL1861 EVN → SVO May 13, 16:15 UTCMay 13, 17:10 UTC55m
2026-05-13 AFL615 EVN → KRR May 13, 10:10 UTCMay 13, 11:00 UTC50m
2026-05-13 AFL1860 SVO → EVN May 13, 08:10 UTCMay 13, 08:20 UTC10m
2026-05-12 AFL2145 AYT → SVO May 12, 17:35 UTCMay 12, 20:01 UTC2h 25m
2026-05-12 AFL2144 SVO → AYT May 12, 15:45 UTCMay 12, 16:05 UTC20m
2026-05-12 AFL2144 SVO → AYT May 12, 13:51 UTCMay 12, 15:01 UTC1h 10m
2026-05-12 AFL2144 SVO → AYT May 12, 11:30 UTCMay 12, 11:55 UTC25m
2026-05-11 AFL1869 EVN → SVO May 11, 21:30 UTCMay 11, 22:15 UTC45m
2026-05-10 AFL1457 KEJ → SVO May 10, 03:10 UTCMay 10, 06:20 UTC3h 10m
2026-05-09 AFL1456 SVO → KEJ May 9, 11:50 UTCMay 10, 01:30 UTC13h 40m
2026-05-09 AFL1208 SVO → KRR May 9, 10:40 UTCMay 9, 11:10 UTC30m
2026-05-08 AFL1005 KGD → SVO May 8, 15:00 UTCMay 8, 16:00 UTC1h 0m
2026-05-07 AFL1004 SVO → KGD May 7, 18:40 UTCMay 8, 13:05 UTC18h 25m
2026-05-06 AFL1861 EVN → SVO May 6, 16:15 UTCMay 6, 16:40 UTC25m
2026-05-06 AFL614 KRR → EVN May 6, 14:20 UTCMay 6, 14:35 UTC15m
2026-05-06 AFL615 EVN → KRR May 6, 10:15 UTCMay 6, 11:00 UTC45m
2026-05-06 AFL1073 KGD → SVO May 6, 00:35 UTCMay 6, 02:01 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-73718 page for operator, model, and routing details .

Mode-S 151FF6 frequently asked

What is Mode-S code 151FF6?
151FF6 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73718.
Where is Mode-S 151FF6 registered?
Mode-S code 151FF6 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FF6 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 151FF6, octal 05217766, decimal 1,384,438.
What flights does 151FF6 operate?
Mode-S 151FF6 has broadcast 20 distinct callsigns, including AFL2143, AFL2142, AFL1861, AFL615, AFL2144.