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 Jul 26, 19:00 UTC
Flights observed
208
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 19:00 UTC

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
AFL2142 Aeroflot Russian Airlines 12 2026-07-26
AFL2145 - 11 2026-07-23
AFL2143 Aeroflot Russian Airlines 10 2026-07-26
AFL615 Aeroflot Russian Airlines 9 2026-06-07
AFL2144 - 8 2026-07-23
AFL1861 Aeroflot Russian Airlines 8 2026-06-07
AFL1860 Aeroflot Russian Airlines 7 2026-06-07
AFL2146 Aeroflot Russian Airlines 5 2026-07-21
AFL1003 Aeroflot Russian Airlines 5 2026-06-05
AFL614 Aeroflot Russian Airlines 4 2026-05-14
AFL2170 Aeroflot Russian Airlines 4 2026-07-23
AFL2147 Aeroflot Russian Airlines 4 2026-07-21
AFL2134 Aeroflot Russian Airlines 4 2026-07-25
AFL2171 Aeroflot Russian Airlines 3 2026-07-23
AFL1963 Aeroflot Russian Airlines 3 2026-05-17
AFL1962 Aeroflot Russian Airlines 3 2026-07-19
AFL1420 Aeroflot Russian Airlines 3 2026-05-23
AFL1028 Aeroflot Russian Airlines 3 2026-06-11
AFL1010 - 3 2026-07-17
AFL1002 Aeroflot Russian Airlines 3 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL2132 SVO → IST Jul 26, 18:45 UTCJul 26, 19:00 UTC15m
2026-07-26 AFL2143 AYT → SVO Jul 26, 14:50 UTCJul 26, 15:35 UTC45m
2026-07-26 AFL2143 AYT → SVO Jul 26, 11:25 UTCJul 26, 13:10 UTC1h 45m
2026-07-26 AFL2142 SVO → AYT Jul 26, 07:45 UTCJul 26, 09:25 UTC1h 40m
2026-07-26 AFL2142 SVO → AYT Jul 26, 04:50 UTCJul 26, 05:10 UTC20m
2026-07-25 AFL2135 IST → SVO Jul 25, 21:00 UTCJul 25, 21:35 UTC35m
2026-07-25 AFL2134 SVO → IST Jul 25, 18:40 UTCJul 25, 19:05 UTC25m
2026-07-25 AFL2134 SVO → IST Jul 25, 14:25 UTCJul 25, 14:50 UTC25m
2026-07-25 AFL1033 KGD → SVO Jul 25, 08:25 UTCJul 25, 09:45 UTC1h 20m
2026-07-25 AFL1032 SVO → KGD Jul 25, 06:00 UTCJul 25, 06:50 UTC50m
2026-07-23 AFL2145 - Jul 23, 20:00 UTCJul 23, 21:40 UTC1h 40m
2026-07-23 AFL2144 - Jul 23, 16:50 UTCJul 23, 18:35 UTC1h 45m
2026-07-23 AFL2171 IST → SVO Jul 23, 04:40 UTCJul 23, 05:10 UTC30m
2026-07-23 AFL2170 SVO → IST Jul 23, 02:30 UTCJul 23, 03:00 UTC30m
2026-07-22 AFL2171 - Jul 22, 04:55 UTCJul 22, 05:25 UTC30m
2026-07-22 AFL2170 - Jul 22, 02:50 UTCJul 22, 03:05 UTC15m
2026-07-21 AFL2170 SVO → SVO Jul 21, 22:25 UTCJul 21, 22:35 UTC10m
2026-07-21 AFL2147 AYT → SVO Jul 21, 15:20 UTCJul 21, 17:05 UTC1h 45m
2026-07-21 AFL2146 SVO → AYT Jul 21, 12:55 UTCJul 21, 13:35 UTC40m
2026-07-21 AFL2146 SVO → AYT Jul 21, 08:45 UTCJul 21, 09:20 UTC35m
2026-07-20 AFL2143 - Jul 20, 11:15 UTCJul 20, 13:05 UTC1h 50m
2026-07-20 AFL2142 - Jul 20, 01:20 UTCJul 20, 09:20 UTC8h 0m
2026-07-19 AFL1962 SVO → NQZ Jul 19, 09:25 UTCJul 19, 09:40 UTC15m
2026-07-18 AFL1430 SVO → SVO Jul 18, 22:10 UTCJul 18, 22:30 UTC20m
2026-07-18 AFL1013 KGD → SVO Jul 18, 17:00 UTCJul 18, 17:50 UTC50m
2026-07-18 AFL1012 - Jul 18, 12:45 UTCJul 18, 14:45 UTC2h 0m
2026-07-18 AFL1583 - Jul 18, 02:50 UTCJul 18, 08:20 UTC5h 30m
2026-07-17 AFL1010 - Jul 17, 16:24 UTCJul 17, 17:15 UTC50m
2026-07-16 AFL1140 SVO → AER Jul 16, 15:45 UTCJul 16, 16:05 UTC20m
2026-07-16 AFL1052 - Jul 16, 05:25 UTCJul 16, 05:40 UTC15m
2026-07-16 AFL1009 - Jul 16, 01:35 UTCJul 16, 02:30 UTC55m
2026-07-15 AFL1433 - Jul 15, 13:45 UTCJul 15, 20:00 UTC6h 15m
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

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 Jul 26, 19:00 UTC.
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 AFL2142, AFL2145, AFL2143, AFL615, AFL2144.