Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151FF1

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73713 · AIRBUS A-321

Hex
151FF1
Octal
05217761
Decimal
1,384,433
Country
RU
Tail
RA-73713
Type
A321
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
210
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S 151FF1.

Country allocation

The ICAO 24-bit address 151FF1 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
AFL1947 Aeroflot Russian Airlines 12 2026-06-11
AFL1887 Aeroflot Russian Airlines 9 2026-06-05
AFL1861 - 9 2026-07-11
AFL2144 - 8 2026-07-15
AFL615 - 7 2026-07-11
AFL1957 Aeroflot Russian Airlines 7 2026-05-18
AFL2145 - 6 2026-07-15
AFL1946 - 6 2026-07-16
AFL1886 Aeroflot Russian Airlines 6 2026-06-05
AFL1883 Aeroflot Russian Airlines 6 2026-06-05
AFL1882 - 6 2026-07-19
AFL614 Aeroflot Russian Airlines 5 2026-07-02
AFL1860 - 5 2026-06-30
AFL2142 Aeroflot Russian Airlines 4 2026-07-23
AFL1420 Aeroflot Russian Airlines 4 2026-06-08
AFL1010 Aeroflot Russian Airlines 4 2026-06-09
AFL1003 - 4 2026-07-09
AFL1002 - 4 2026-07-09
AFL2147 Aeroflot Russian Airlines 3 2026-06-25
AFL2146 - 3 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1942 SVO → ALA Jul 26, 21:20 UTCJul 26, 21:55 UTC35m
2026-07-26 AFL1423 CEK → SVO Jul 26, 18:05 UTCJul 26, 18:35 UTC30m
2026-07-25 AFL1140 SVO → AER Jul 25, 15:35 UTCJul 25, 16:05 UTC30m
2026-07-23 AFL2143 - Jul 23, 11:30 UTCJul 23, 13:15 UTC1h 45m
2026-07-23 AFL2142 SVO → AYT Jul 23, 07:50 UTCJul 23, 09:35 UTC1h 45m
2026-07-22 AFL1073 KGD → SVO Jul 22, 00:45 UTCJul 22, 02:00 UTC1h 15m
2026-07-21 AFL1072 - Jul 21, 20:35 UTCJul 21, 22:30 UTC1h 55m
2026-07-21 AFL1025 - Jul 21, 16:35 UTCJul 21, 18:25 UTC1h 50m
2026-07-21 AFL1024 - Jul 21, 13:05 UTCJul 21, 14:50 UTC1h 45m
2026-07-20 AFL1208 - Jul 20, 07:45 UTCJul 20, 08:40 UTC55m
2026-07-19 AFL1882 SVO → SVO Jul 19, 19:15 UTCJul 19, 19:30 UTC15m
2026-07-19 AFL2143 - Jul 19, 11:30 UTCJul 19, 13:20 UTC1h 50m
2026-07-19 AFL2142 - Jul 19, 02:00 UTCJul 19, 09:50 UTC7h 50m
2026-07-18 AFL1208 - Jul 18, 07:40 UTCJul 18, 08:10 UTC30m
2026-07-18 AFL1647 - Jul 18, 02:40 UTCJul 18, 03:00 UTC21m
2026-07-16 AFL1882 - Jul 16, 20:15 UTCJul 16, 20:29 UTC15m
2026-07-16 AFL1882 - Jul 16, 19:25 UTCJul 16, 19:40 UTC15m
2026-07-16 AFL1946 - Jul 16, 08:10 UTCJul 16, 08:25 UTC15m
2026-07-16 AFL1946 SVO → SVO Jul 16, 07:15 UTCJul 16, 07:30 UTC15m
2026-07-15 AFL2145 - Jul 15, 17:30 UTCJul 15, 19:15 UTC1h 45m
2026-07-15 AFL2144 - Jul 15, 15:15 UTCJul 15, 16:00 UTC45m
2026-07-15 AFL1895 SVO → SVO Jul 15, 08:20 UTCJul 15, 08:30 UTC10m
2026-07-14 AFL1869 - Jul 14, 11:05 UTCJul 14, 11:30 UTC25m
2026-07-13 AFL1868 - Jul 13, 11:30 UTCJul 13, 20:40 UTC9h 10m
2026-07-12 AFL2145 - Jul 12, 21:20 UTCJul 12, 23:10 UTC1h 50m
2026-07-12 AFL2144 - Jul 12, 18:10 UTCJul 12, 18:45 UTC35m
2026-07-11 AFL1861 - Jul 11, 18:50 UTCJul 11, 19:20 UTC30m
2026-07-11 AFL1861 - Jul 11, 16:25 UTCJul 11, 16:55 UTC30m
2026-07-11 AFL615 - Jul 11, 10:20 UTCJul 11, 11:10 UTC50m
2026-07-10 AFL1510 - Jul 10, 14:20 UTCJul 11, 08:20 UTC18h 1m
2026-07-10 AFL1019 - Jul 10, 13:00 UTCJul 11, 08:20 UTC19h 20m
2026-07-10 AFL1019 - Jul 10, 01:25 UTCJul 10, 20:15 UTC18h 50m
2026-07-09 AFL1458 - Jul 9, 23:20 UTCJul 9, 23:50 UTC30m
2026-07-09 AFL025 - Jul 9, 16:45 UTCJul 9, 17:05 UTC20m
2026-07-09 AFL024 SVO → LED Jul 9, 15:00 UTCJul 9, 15:15 UTC15m
2026-07-09 AFL1003 - Jul 9, 11:20 UTCJul 9, 12:25 UTC1h 5m
2026-07-09 AFL1002 - Jul 9, 08:20 UTCJul 9, 09:05 UTC45m
2026-07-08 AFL1198 SVO → SVO Jul 8, 19:30 UTCJul 8, 19:55 UTC25m
2026-07-04 AFL1110 - Jul 4, 02:10 UTCJul 4, 02:50 UTC40m
2026-07-03 AFL2145 AYT → SVO Jul 3, 17:25 UTCJul 3, 19:10 UTC1h 45m
2026-07-03 AFL2144 SVO → AYT Jul 3, 14:10 UTCJul 3, 15:35 UTC1h 25m
2026-07-03 AFL2144 SVO → AYT Jul 3, 10:55 UTCJul 3, 11:15 UTC20m
2026-07-02 AFL1582 SVO → RGK Jul 2, 23:15 UTCJul 2, 23:30 UTC15m
2026-07-02 AFL1861 - Jul 2, 18:10 UTCJul 2, 18:40 UTC30m
2026-07-02 AFL614 KRR → EVN Jul 2, 16:00 UTCJul 2, 16:10 UTC10m
2026-07-02 AFL615 - Jul 2, 11:15 UTCJul 2, 12:05 UTC50m
2026-07-01 AFL2145 AYT → SVO Jul 1, 17:15 UTCJul 1, 19:10 UTC1h 55m
2026-07-01 AFL2144 SVO → AYT Jul 1, 14:45 UTCJul 1, 15:25 UTC40m
2026-06-30 AFL1942 SVO → ALA Jun 30, 23:55 UTCJul 1, 00:25 UTC30m
2026-06-30 AFL1861 - Jun 30, 19:00 UTCJun 30, 19:25 UTC25m

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-73713 page for operator, model, and routing details .

Mode-S 151FF1 frequently asked

What is Mode-S code 151FF1?
151FF1 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73713.
Where is Mode-S 151FF1 registered?
Mode-S code 151FF1 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FF1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FF1, octal 05217761, decimal 1,384,433.
What flights does 151FF1 operate?
Mode-S 151FF1 has broadcast 20 distinct callsigns, including AFL1947, AFL1887, AFL1861, AFL2144, AFL615.