Apparatus

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sensors Mode-S transponder

151FEC

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73708 · AIRBUS A-320

Hex
151FEC
Octal
05217754
Decimal
1,384,428
Country
RU
Tail
RA-73708
Type
A320
Broadcasting now · callsign AFL2136 · 1,225 ft
Flights observed
53
Distinct callsigns
20
Country
RU
Last broadcast
11h ago

Current position

151FEC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 151FEC 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
AFL2130 Aeroflot Russian Airlines 9 2026-05-28
AFL2136 Aeroflot Russian Airlines 7 2026-05-09
AFL2137 Aeroflot Russian Airlines 5 2026-05-09
AFL1942 Aeroflot Russian Airlines 4 2026-05-26
AFL1943 Aeroflot Russian Airlines 3 2026-05-28
AFL2134 Aeroflot Russian Airlines 2 2026-05-18
AFL1956 Aeroflot Russian Airlines 2 2026-05-27
AFL1941 Aeroflot Russian Airlines 2 2026-05-14
AFL1940 Aeroflot Russian Airlines 2 2026-05-11
AFL1483 Aeroflot Russian Airlines 2 2026-05-07
AFL1137 Aeroflot Russian Airlines 2 2026-05-12
AFL2135 Aeroflot Russian Airlines 1 2026-05-18
AFL2131 - 1 2026-04-13
AFL1963 Aeroflot Russian Airlines 1 2026-05-29
AFL1962 Aeroflot Russian Airlines 1 2026-05-29
AFL1957 Aeroflot Russian Airlines 1 2026-04-24
AFL1487 Aeroflot Russian Airlines 1 2026-04-24
AFL1486 Aeroflot Russian Airlines 1 2026-04-24
AFL1481 - 1 2026-04-13
AFL1313 Aeroflot Russian Airlines 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL1963 NQZ → SVO May 29, 18:25 UTCMay 29, 18:45 UTC20m
2026-05-29 AFL1962 SVO → NQZ May 29, 11:15 UTCMay 29, 11:45 UTC30m
2026-05-28 AFL1943 ALA → SVO May 28, 14:35 UTCMay 29, 07:25 UTC16h 50m
2026-05-28 AFL2130 SVO → IST May 28, 12:20 UTCMay 28, 12:30 UTC10m
2026-05-28 AFL2130 SVO → IST May 28, 10:50 UTCMay 28, 11:25 UTC35m
2026-05-28 AFL2130 SVO → IST May 28, 08:00 UTCMay 28, 08:30 UTC30m
2026-05-27 AFL1956 SVO → NQZ May 27, 21:20 UTCMay 28, 02:30 UTC5h 10m
2026-05-26 AFL1942 SVO → ALA May 26, 22:35 UTCMay 26, 22:50 UTC15m
2026-05-26 AFL2130 SVO → IST May 26, 12:05 UTCMay 26, 12:14 UTC10m
2026-05-23 AFL1174 SVO → ASF May 23, 13:45 UTCMay 23, 14:10 UTC25m
2026-05-22 AFL1943 ALA → SVO May 22, 22:40 UTCMay 23, 07:20 UTC8h 39m
2026-05-22 AFL2130 SVO → IST May 22, 12:05 UTCMay 22, 12:15 UTC10m
2026-05-20 AFL1942 SVO → ALA May 20, 21:40 UTCMay 20, 22:40 UTC1h 0m
2026-05-19 AFL2130 SVO → IST May 19, 12:10 UTCMay 19, 12:25 UTC15m
2026-05-18 AFL2135 IST → SVO May 18, 21:05 UTCMay 18, 21:15 UTC10m
2026-05-18 AFL2134 SVO → IST May 18, 13:50 UTCMay 18, 14:30 UTC40m
2026-05-14 AFL1941 ALA → SVO May 14, 04:45 UTCMay 14, 05:05 UTC20m
2026-05-12 AFL1137 AER → SVO May 12, 17:25 UTCMay 12, 17:50 UTC25m
2026-05-11 AFL1940 SVO → ALA May 11, 21:05 UTCMay 12, 15:15 UTC18h 10m
2026-05-11 AFL1940 SVO → ALA May 11, 20:55 UTCMay 12, 15:15 UTC18h 20m
2026-05-10 AFL1137 AER → SVO May 10, 15:24 UTCMay 10, 15:45 UTC20m
2026-05-09 AFL2137 IST → SVO May 9, 17:49 UTCMay 10, 15:45 UTC21h 55m
2026-05-09 AFL2137 IST → SVO May 9, 07:45 UTCMay 9, 18:25 UTC10h 40m
2026-05-09 AFL2136 SVO → IST May 9, 06:25 UTCMay 9, 07:05 UTC40m
2026-05-08 AFL2137 IST → SVO May 8, 10:35 UTCMay 8, 19:10 UTC8h 35m
2026-05-07 AFL2137 IST → SVO May 7, 21:25 UTCMay 8, 19:10 UTC21h 45m
2026-05-07 AFL1483 KJA → SVO May 7, 01:20 UTCMay 7, 05:05 UTC3h 45m
2026-05-06 AFL1312 SVO → MRV May 6, 08:01 UTCMay 6, 08:15 UTC15m
2026-05-05 AFL1483 KJA → SVO May 5, 01:45 UTCMay 5, 08:10 UTC6h 25m
2026-05-01 AFL2130 SVO → IST May 1, 11:20 UTCMay 2, 04:20 UTC17h 0m
2026-04-30 AFL1132 SVO → AER Apr 30, 15:00 UTCApr 30, 15:25 UTC25m
2026-04-30 AFL1176 SVO → AER Apr 30, 05:15 UTCApr 30, 05:45 UTC30m
2026-04-27 AFL2134 SVO → IST Apr 27, 16:05 UTCApr 27, 16:40 UTC35m
2026-04-27 AFL1943 ALA → SVO Apr 27, 08:10 UTCApr 27, 08:40 UTC30m
2026-04-26 AFL1942 SVO → ALA Apr 26, 21:55 UTCApr 27, 07:25 UTC9h 30m
2026-04-25 AFL1941 ALA → SVO Apr 25, 06:05 UTCApr 25, 22:50 UTC16h 45m
2026-04-24 AFL1487 KJA → SVO Apr 24, 13:10 UTCApr 25, 06:20 UTC17h 10m
2026-04-24 AFL1486 SVO → KJA Apr 24, 07:00 UTCApr 24, 07:25 UTC25m
2026-04-24 AFL1957 NQZ → SVO Apr 24, 04:25 UTCApr 24, 04:35 UTC10m
2026-04-23 AFL1956 SVO → NQZ Apr 23, 21:00 UTCApr 24, 03:35 UTC6h 35m
2026-04-23 AFL1313 MRV → SVO Apr 23, 12:30 UTCApr 23, 12:45 UTC15m
2026-04-22 AFL2137 NAL → NAL Apr 22, 14:30 UTCApr 22, 14:45 UTC15m
2026-04-22 AFL2136 SVO → IST Apr 22, 06:20 UTCApr 22, 06:45 UTC25m
2026-04-20 AFL1942 SVO → ALA Apr 20, 21:30 UTCApr 21, 06:45 UTC9h 15m
2026-04-17 AFL2136 SVO → IST Apr 17, 06:30 UTCApr 17, 06:50 UTC20m
2026-04-16 AFL2136 SVO → IST Apr 16, 06:29 UTCApr 16, 07:00 UTC30m
2026-04-15 AFL2130 SVO → IST Apr 15, 08:10 UTCApr 15, 08:25 UTC15m
2026-04-14 AFL2136 SVO → IST Apr 14, 09:30 UTCApr 14, 10:10 UTC40m
2026-04-14 AFL2136 SVO → IST Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 AFL2136 SVO → IST Apr 14, 06:45 UTCApr 14, 07:10 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-73708 page for operator, model, and routing details .

Mode-S 151FEC frequently asked

What is Mode-S code 151FEC?
151FEC is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73708.
Where is Mode-S 151FEC registered?
Mode-S code 151FEC is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FEC broadcasting right now?
Yes. Mode-S 151FEC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FEC, octal 05217754, decimal 1,384,428.
What flights does 151FEC operate?
Mode-S 151FEC has broadcast 20 distinct callsigns, including AFL2130, AFL2136, AFL2137, AFL1942, AFL1943.