Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151FF3

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73715 · AIRBUS A-321

Hex
151FF3
Octal
05217763
Decimal
1,384,435
Country
RU
Tail
RA-73715
Type
A321
No current signal · last broadcast 8h ago
Flights observed
176
Distinct callsigns
20
Country
RU
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 151FF3.

Country allocation

The ICAO 24-bit address 151FF3 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
AFL2145 Aeroflot Russian Airlines 10 2026-07-04
AFL615 Aeroflot Russian Airlines 9 2026-06-07
AFL2142 - 9 2026-07-14
AFL1861 Aeroflot Russian Airlines 8 2026-06-07
AFL2144 Aeroflot Russian Airlines 7 2026-07-04
AFL2143 - 7 2026-07-14
AFL1860 Aeroflot Russian Airlines 7 2026-06-07
AFL1003 Aeroflot Russian Airlines 5 2026-06-05
AFL614 Aeroflot Russian Airlines 4 2026-05-14
AFL2147 Aeroflot Russian Airlines 3 2026-06-06
AFL2146 Aeroflot Russian Airlines 3 2026-06-03
AFL1963 Aeroflot Russian Airlines 3 2026-05-17
AFL1420 Aeroflot Russian Airlines 3 2026-05-23
AFL1028 Aeroflot Russian Airlines 3 2026-06-11
AFL1002 Aeroflot Russian Airlines 3 2026-05-05
AFL2161 Aeroflot Russian Airlines 2 2026-05-10
AFL2134 Aeroflot Russian Airlines 2 2026-05-25
AFL1962 Aeroflot Russian Airlines 2 2026-05-17
AFL1942 Aeroflot Russian Airlines 2 2026-05-30
AFL1915 Aeroflot Russian Airlines 2 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFL1236 - Jul 14, 19:05 UTCJul 14, 19:30 UTC25m
2026-07-14 AFL2143 - Jul 14, 11:25 UTCJul 14, 13:05 UTC1h 40m
2026-07-14 AFL2142 - Jul 14, 08:45 UTCJul 14, 10:05 UTC1h 20m
2026-07-11 AFL1422 - Jul 11, 13:40 UTCJul 11, 14:10 UTC30m
2026-07-09 AFL1485 - Jul 9, 00:55 UTCJul 9, 06:40 UTC5h 45m
2026-07-07 AFL1025 - Jul 7, 15:55 UTCJul 8, 01:55 UTC10h 0m
2026-07-07 AFL1024 - Jul 7, 13:05 UTCJul 7, 13:50 UTC45m
2026-07-06 AFL1394 SVO → SVO Jul 6, 18:00 UTCJul 6, 18:20 UTC20m
2026-07-05 AFL2143 - Jul 5, 11:20 UTCJul 5, 13:10 UTC1h 50m
2026-07-05 AFL2142 - Jul 5, 07:55 UTCJul 5, 09:35 UTC1h 40m
2026-07-05 AFL2142 SVO → SVO Jul 5, 04:55 UTCJul 5, 05:30 UTC35m
2026-07-04 AFL2145 AYT → SVO Jul 4, 17:35 UTCJul 4, 19:25 UTC1h 50m
2026-07-04 AFL2144 SVO → AYT Jul 4, 15:05 UTCJul 4, 16:00 UTC55m
2026-07-02 AFL1208 SVO → SVO Jul 2, 07:55 UTCJul 2, 08:20 UTC25m
2026-07-01 AFL1124 SVO → AER Jul 1, 13:05 UTCJul 1, 13:30 UTC25m
2026-06-30 AFL2145 AYT → SVO Jun 30, 17:30 UTCJun 30, 19:20 UTC1h 50m
2026-06-30 AFL2144 SVO → AYT Jun 30, 15:05 UTCJun 30, 15:40 UTC35m
2026-06-28 AFL1008 - Jun 28, 19:25 UTCJun 28, 20:04 UTC40m
2026-06-27 AFL1688 - Jun 27, 07:10 UTCJun 27, 07:24 UTC15m
2026-06-24 AFL2143 - Jun 24, 11:29 UTCJun 25, 03:34 UTC16h 5m
2026-06-24 AFL2142 - Jun 24, 06:35 UTCJun 24, 09:29 UTC2h 55m
2026-06-24 AFL2142 SVO → SVO Jun 24, 04:55 UTCJun 24, 05:20 UTC25m
2026-06-23 AFL2145 AYT → SVO Jun 23, 17:50 UTCJun 23, 19:29 UTC1h 40m
2026-06-23 AFL2171 - Jun 23, 05:00 UTCJun 23, 15:34 UTC10h 35m
2026-06-22 AFL2170 SVO → IST Jun 22, 22:19 UTCJun 22, 23:10 UTC50m
2026-06-19 AFL1432 SVO → BAX Jun 19, 19:34 UTCJun 19, 20:04 UTC30m
2026-06-18 AFL2143 - Jun 18, 18:05 UTCJun 18, 19:55 UTC1h 50m
2026-06-18 AFL2142 - Jun 18, 11:30 UTCJun 18, 16:40 UTC5h 10m
2026-06-17 AFL1019 KGD → SVO Jun 17, 14:10 UTCJun 17, 15:20 UTC1h 10m
2026-06-17 AFL1018 - Jun 17, 11:40 UTCJun 17, 12:35 UTC55m
2026-06-17 AFL1513 - Jun 17, 07:30 UTCJun 17, 07:45 UTC15m
2026-06-15 AFL2143 - Jun 15, 11:34 UTCJun 15, 19:35 UTC8h 0m
2026-06-15 AFL2142 - Jun 15, 09:35 UTCJun 15, 10:09 UTC35m
2026-06-15 AFL2142 SVO → SVO Jun 15, 04:55 UTCJun 15, 05:25 UTC30m
2026-06-14 AFL1865 EVN → SVO Jun 14, 22:50 UTCJun 14, 23:05 UTC15m
2026-06-14 AFL1865 EVN → SVO Jun 14, 20:05 UTCJun 14, 20:35 UTC30m
2026-06-14 AFL1864 SVO → EVN Jun 14, 14:30 UTCJun 14, 15:50 UTC1h 20m
2026-06-13 AFL1015 KGD → SVO Jun 13, 09:05 UTCJun 13, 10:20 UTC1h 15m
2026-06-13 AFL1014 SVO → KGD Jun 13, 05:20 UTCJun 13, 05:45 UTC25m
2026-06-12 AFL1511 SGC → SVO Jun 12, 16:25 UTCJun 13, 02:20 UTC9h 55m
2026-06-12 AFL1946 SVO → ALA Jun 12, 07:45 UTCJun 12, 08:05 UTC20m
2026-06-11 AFL1029 MRV → SVO Jun 11, 17:30 UTCJun 11, 17:45 UTC15m
2026-06-11 AFL1028 SVO → MRV Jun 11, 09:30 UTCJun 11, 09:40 UTC10m
2026-06-10 AFL1025 KGD → SVO Jun 10, 16:00 UTCJun 10, 17:10 UTC1h 10m
2026-06-10 AFL1024 SVO → KGD Jun 10, 11:30 UTCJun 10, 13:50 UTC2h 20m
2026-06-10 AFL1269 KZN → SVO Jun 10, 09:05 UTCJun 10, 09:15 UTC10m
2026-06-09 AFL2145 AYT → SVO Jun 9, 21:55 UTCJun 9, 22:20 UTC25m
2026-06-09 AFL2145 AYT → SVO Jun 9, 17:45 UTCJun 9, 19:55 UTC2h 10m
2026-06-09 AFL2144 SVO → AYT Jun 9, 14:05 UTCJun 9, 15:05 UTC1h 0m
2026-06-09 AFL2144 SVO → AYT Jun 9, 11:35 UTCJun 9, 12:30 UTC55m

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-73715 page for operator, model, and routing details .

Mode-S 151FF3 frequently asked

What is Mode-S code 151FF3?
151FF3 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73715.
Where is Mode-S 151FF3 registered?
Mode-S code 151FF3 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FF3 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FF3, octal 05217763, decimal 1,384,435.
What flights does 151FF3 operate?
Mode-S 151FF3 has broadcast 20 distinct callsigns, including AFL2145, AFL615, AFL2142, AFL1861, AFL2144.