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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
No current signal · last broadcast Jul 26, 15:40 UTC
Flights observed
159
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 15:40 UTC

Last known position

Most recent position reported by Mode-S 151FEC.

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
AFL2136 Aeroflot Russian Airlines 24 2026-07-24
AFL2130 Aeroflot Russian Airlines 19 2026-07-25
AFL2137 - 18 2026-07-24
AFL2154 Aeroflot Russian Airlines 12 2026-07-23
AFL2155 Aeroflot Russian Airlines 11 2026-07-23
AFL2131 - 10 2026-07-25
AFL1940 Aeroflot Russian Airlines 6 2026-07-22
AFL2135 - 5 2026-07-19
AFL2134 - 5 2026-07-11
AFL1942 Aeroflot Russian Airlines 4 2026-05-26
AFL1941 Aeroflot Russian Airlines 4 2026-06-05
AFL1312 Aeroflot Russian Airlines 4 2026-07-26
AFL2120 - 3 2026-07-01
AFL1943 Aeroflot Russian Airlines 3 2026-05-28
AFL2119 - 2 2026-07-11
AFL1956 Aeroflot Russian Airlines 2 2026-05-27
AFL1483 Aeroflot Russian Airlines 2 2026-05-07
AFL1481 Aeroflot Russian Airlines 2 2026-06-12
AFL1313 Aeroflot Russian Airlines 2 2026-07-26
AFL1137 Aeroflot Russian Airlines 2 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1313 MRV → SVO Jul 26, 15:30 UTCJul 26, 15:35 UTC5m
2026-07-26 AFL1312 SVO → MRV Jul 26, 08:00 UTCJul 26, 08:25 UTC25m
2026-07-25 AFL1512 SVO → SGC Jul 25, 23:00 UTCJul 25, 23:20 UTC20m
2026-07-25 AFL2131 - Jul 25, 16:55 UTCJul 25, 17:25 UTC30m
2026-07-25 AFL2130 SVO → IST Jul 25, 13:30 UTCJul 25, 13:55 UTC25m
2026-07-24 AFL2137 - Jul 24, 14:05 UTCJul 25, 05:45 UTC15h 40m
2026-07-24 AFL2136 SVO → IST Jul 24, 11:35 UTCJul 24, 11:50 UTC15m
2026-07-24 AFL2136 SVO → IST Jul 24, 06:50 UTCJul 24, 07:05 UTC15m
2026-07-23 AFL2155 IST → SVO Jul 23, 19:05 UTCJul 23, 19:45 UTC40m
2026-07-23 AFL2154 SVO → IST Jul 23, 15:20 UTCJul 23, 17:25 UTC2h 5m
2026-07-22 AFL1940 SVO → ALA Jul 22, 20:20 UTCJul 22, 20:35 UTC15m
2026-07-22 AFL2137 - Jul 22, 13:10 UTCJul 22, 13:35 UTC25m
2026-07-21 AFL2155 IST → SVO Jul 21, 21:00 UTCJul 21, 21:15 UTC15m
2026-07-21 AFL2155 IST → SVO Jul 21, 16:50 UTCJul 21, 18:55 UTC2h 5m
2026-07-21 AFL2154 SVO → IST Jul 21, 14:30 UTCJul 21, 15:15 UTC45m
2026-07-20 AFL1138 SVO → SVO Jul 20, 07:35 UTCJul 20, 08:10 UTC35m
2026-07-19 AFL2135 - Jul 19, 20:55 UTCJul 19, 21:25 UTC30m
2026-07-17 AFL2137 - Jul 17, 13:15 UTCJul 17, 13:45 UTC30m
2026-07-17 AFL2136 - Jul 17, 10:20 UTCJul 17, 10:40 UTC20m
2026-07-16 AFL2130 - Jul 16, 12:25 UTCJul 16, 12:44 UTC20m
2026-07-16 AFL2130 SVO → SVO Jul 16, 08:15 UTCJul 16, 08:35 UTC20m
2026-07-15 AFL2155 - Jul 15, 16:40 UTCJul 15, 17:20 UTC40m
2026-07-15 AFL2154 - Jul 15, 14:40 UTCJul 15, 15:15 UTC35m
2026-07-15 AFL2154 SVO → SVO Jul 15, 10:20 UTCJul 15, 10:40 UTC20m
2026-07-15 AFL1431 - Jul 15, 06:00 UTCJul 15, 06:35 UTC35m
2026-07-14 AFL2137 - Jul 14, 13:05 UTCJul 14, 13:25 UTC20m
2026-07-14 AFL2136 - Jul 14, 10:20 UTCJul 14, 10:40 UTC20m
2026-07-14 AFL2136 SVO → SVO Jul 14, 06:10 UTCJul 14, 06:35 UTC25m
2026-07-13 AFL2131 - Jul 13, 16:25 UTCJul 13, 16:55 UTC30m
2026-07-13 AFL2130 - Jul 13, 14:00 UTCJul 13, 14:35 UTC35m
2026-07-11 AFL2135 - Jul 11, 20:55 UTCJul 11, 21:25 UTC30m
2026-07-11 AFL2134 - Jul 11, 14:00 UTCJul 11, 15:10 UTC1h 10m
2026-07-11 AFL2119 - Jul 11, 05:10 UTCJul 11, 07:05 UTC1h 55m
2026-07-10 AFL2155 - Jul 10, 16:15 UTCJul 10, 16:50 UTC35m
2026-07-09 AFL2137 - Jul 9, 13:10 UTCJul 9, 13:40 UTC30m
2026-07-09 AFL2136 - Jul 9, 10:25 UTCJul 9, 10:45 UTC20m
2026-07-04 AFL2155 IST → SVO Jul 4, 16:30 UTCJul 4, 18:35 UTC2h 5m
2026-07-04 AFL2154 SVO → IST Jul 4, 13:00 UTCJul 4, 15:00 UTC2h 0m
2026-07-03 AFL2135 - Jul 3, 21:00 UTCJul 3, 21:30 UTC30m
2026-07-03 AFL2134 - Jul 3, 18:45 UTCJul 3, 18:55 UTC10m
2026-07-03 AFL2119 - Jul 3, 04:50 UTCJul 3, 06:45 UTC1h 55m
2026-07-03 AFL2118 - Jul 3, 02:30 UTCJul 3, 03:15 UTC45m
2026-07-02 AFL1491 KJA → SVO Jul 2, 15:30 UTCJul 2, 18:40 UTC3h 10m
2026-07-01 AFL1940 SVO → ALA Jul 1, 20:10 UTCJul 1, 20:25 UTC15m
2026-07-01 AFL2121 - Jul 1, 11:25 UTCJul 1, 13:35 UTC2h 10m
2026-07-01 AFL2120 - Jul 1, 08:55 UTCJul 1, 09:40 UTC45m
2026-06-30 AFL2120 - Jun 30, 13:05 UTCJul 1, 09:40 UTC20h 35m
2026-06-30 AFL2120 - Jun 30, 12:55 UTCJul 1, 09:40 UTC20h 45m
2026-06-29 AFL2131 - Jun 29, 14:44 UTCJun 29, 15:14 UTC30m
2026-06-27 AFL2131 IST → SVO Jun 27, 14:54 UTCJun 27, 15:24 UTC30m

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?
No active broadcast right now. Last signal was Jul 26, 15:40 UTC.
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 AFL2136, AFL2130, AFL2137, AFL2154, AFL2155.