Apparatus

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sensors Mode-S transponder

151FEE

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73710 · AIRBUS A-321

Hex
151FEE
Octal
05217756
Decimal
1,384,430
Country
RU
Tail
RA-73710
Type
A321
No current signal · last broadcast 1d ago
Flights observed
180
Distinct callsigns
20
Country
RU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 151FEE.

Country allocation

The ICAO 24-bit address 151FEE 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
AFL2143 - 12 2026-07-15
AFL2142 - 11 2026-07-17
AFL2144 Aeroflot Russian Airlines 5 2026-06-25
AFL1072 Aeroflot Russian Airlines 5 2026-05-08
AFL2147 Aeroflot Russian Airlines 4 2026-07-24
AFL2146 Aeroflot Russian Airlines 4 2026-07-24
AFL2145 Aeroflot Russian Airlines 4 2026-06-25
AFL1482 Aeroflot Russian Airlines 4 2026-04-30
AFL1073 - 4 2026-07-13
AFL1025 - 4 2026-07-11
AFL011 Aeroflot Russian Airlines 3 2026-06-13
AFL010 Aeroflot Russian Airlines 3 2026-06-13
AFL433 Aeroflot Russian Airlines 2 2026-06-14
AFL2136 - 2 2026-06-22
AFL2130 Aeroflot Russian Airlines 2 2026-06-18
AFL1947 Aeroflot Russian Airlines 2 2026-05-27
AFL1943 Aeroflot Russian Airlines 2 2026-06-08
AFL1870 Aeroflot Russian Airlines 2 2026-06-16
AFL1863 Aeroflot Russian Airlines 2 2026-06-03
AFL1862 Aeroflot Russian Airlines 2 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1195 KZN → SVO Jul 26, 19:35 UTCJul 26, 20:50 UTC1h 15m
2026-07-26 AFL1402 SVO → SVX Jul 26, 08:25 UTCJul 26, 08:45 UTC20m
2026-07-25 AFL1092 SVO → CEK Jul 25, 23:20 UTCJul 25, 23:40 UTC20m
2026-07-25 AFL1092 SVO → CEK Jul 25, 22:15 UTCJul 25, 22:30 UTC15m
2026-07-24 AFL2147 AYT → SVO Jul 24, 17:35 UTCJul 25, 17:25 UTC23h 50m
2026-07-24 AFL2147 AYT → SVO Jul 24, 16:05 UTCJul 24, 17:45 UTC1h 40m
2026-07-24 AFL2146 SVO → AYT Jul 24, 12:45 UTCJul 24, 14:35 UTC1h 50m
2026-07-23 AFL2146 SVO → AYT Jul 23, 17:35 UTCJul 24, 14:35 UTC21h 0m
2026-07-23 AFL1490 SVO → KJA Jul 23, 14:55 UTCJul 24, 13:10 UTC22h 15m
2026-07-22 AFL1122 SVO → SVO Jul 22, 11:40 UTCJul 22, 12:35 UTC55m
2026-07-21 AFL1140 SVO → AER Jul 21, 15:50 UTCJul 21, 16:20 UTC30m
2026-07-20 AFL2135 - Jul 20, 21:10 UTCJul 20, 21:40 UTC30m
2026-07-19 AFL1000 - Jul 19, 05:10 UTCJul 19, 05:55 UTC45m
2026-07-17 AFL2132 - Jul 17, 22:55 UTCJul 17, 23:10 UTC15m
2026-07-17 AFL2142 - Jul 17, 08:54 UTCJul 17, 09:30 UTC35m
2026-07-15 AFL2143 - Jul 15, 12:35 UTCJul 15, 14:15 UTC1h 40m
2026-07-15 AFL2142 - Jul 15, 09:25 UTCJul 15, 10:20 UTC55m
2026-07-15 AFL2142 SVO → SVO Jul 15, 05:05 UTCJul 15, 05:35 UTC30m
2026-07-14 AFL1083 GDZ → SVO Jul 14, 19:10 UTCJul 14, 19:20 UTC10m
2026-07-14 AFL1431 - Jul 14, 07:30 UTCJul 14, 07:50 UTC20m
2026-07-13 AFL1015 - Jul 13, 11:15 UTCJul 13, 11:25 UTC10m
2026-07-13 AFL1015 - Jul 13, 09:05 UTCJul 13, 10:30 UTC1h 25m
2026-07-13 AFL1014 - Jul 13, 06:35 UTCJul 13, 07:25 UTC50m
2026-07-13 AFL1073 - Jul 13, 01:55 UTCJul 13, 02:50 UTC55m
2026-07-12 AFL1485 - Jul 12, 01:10 UTCJul 12, 07:55 UTC6h 45m
2026-07-11 AFL1484 SVO → SVO Jul 11, 21:35 UTCJul 11, 22:10 UTC35m
2026-07-11 AFL1025 - Jul 11, 16:45 UTCJul 11, 18:45 UTC2h 0m
2026-07-09 AFL1211 - Jul 9, 09:30 UTCJul 9, 09:45 UTC15m
2026-07-09 AFL1210 - Jul 9, 06:00 UTCJul 9, 06:15 UTC15m
2026-07-05 AFL1416 - Jul 5, 06:55 UTCJul 5, 07:35 UTC40m
2026-07-04 AFL2143 - Jul 4, 11:25 UTCJul 4, 13:20 UTC1h 55m
2026-07-02 AFL1415 - Jul 2, 20:25 UTCJul 2, 20:55 UTC30m
2026-07-02 AFL1414 SVO → SVX Jul 2, 15:05 UTCJul 2, 15:25 UTC20m
2026-07-01 AFL1071 AER → SVO Jul 1, 22:00 UTCJul 1, 22:25 UTC25m
2026-07-01 AFL1070 SVO → AER Jul 1, 13:40 UTCJul 1, 14:10 UTC30m
2026-06-30 AFL2147 AYT → SVO Jun 30, 15:15 UTCJul 1, 06:55 UTC15h 40m
2026-06-30 AFL2146 - Jun 30, 02:45 UTCJun 30, 13:40 UTC10h 55m
2026-06-28 AFL1513 - Jun 28, 00:09 UTCJun 28, 04:59 UTC4h 50m
2026-06-27 AFL1512 SVO → SVO Jun 27, 22:55 UTCJun 27, 23:25 UTC30m
2026-06-27 AFL1033 KGD → SVO Jun 27, 08:20 UTCJun 27, 10:05 UTC1h 45m
2026-06-26 AFL1025 KGD → SVO Jun 26, 15:39 UTCJun 27, 06:44 UTC15h 5m
2026-06-25 AFL1025 KGD → SVO Jun 25, 19:34 UTCJun 26, 17:09 UTC21h 35m
2026-06-25 AFL2145 AYT → SVO Jun 25, 17:54 UTCJun 26, 17:09 UTC23h 15m
2026-06-25 AFL2144 SVO → AYT Jun 25, 15:10 UTCJun 25, 15:50 UTC40m
2026-06-25 AFL2144 SVO → AYT Jun 25, 11:10 UTCJun 25, 11:35 UTC25m
2026-06-25 AFL2171 - Jun 25, 05:25 UTCJun 25, 05:55 UTC30m
2026-06-25 AFL2170 - Jun 25, 02:54 UTCJun 25, 03:15 UTC20m
2026-06-24 AFL1181 - Jun 24, 09:19 UTCJun 24, 09:39 UTC20m
2026-06-22 AFL2137 IST → SVO Jun 22, 17:00 UTCJun 22, 17:29 UTC30m
2026-06-22 AFL2136 - Jun 22, 14:45 UTCJun 22, 14:59 UTC15m

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-73710 page for operator, model, and routing details .

Mode-S 151FEE frequently asked

What is Mode-S code 151FEE?
151FEE is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73710.
Where is Mode-S 151FEE registered?
Mode-S code 151FEE is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FEE broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FEE, octal 05217756, decimal 1,384,430.
What flights does 151FEE operate?
Mode-S 151FEE has broadcast 20 distinct callsigns, including AFL2143, AFL2142, AFL2144, AFL1072, AFL2147.