Apparatus

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sensors Mode-S transponder

151FEB

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73707 · AIRBUS A-321

Hex
151FEB
Octal
05217753
Decimal
1,384,427
Country
RU
Tail
RA-73707
Type
A321
No current signal · last broadcast Jul 26, 17:25 UTC
Flights observed
184
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 17:25 UTC

Last known position

Most recent position reported by Mode-S 151FEB.

Country allocation

The ICAO 24-bit address 151FEB 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 19 2026-07-21
AFL2130 - 17 2026-07-09
AFL2137 - 13 2026-07-21
AFL2131 Aeroflot Russian Airlines 12 2026-06-21
AFL2155 Aeroflot Russian Airlines 11 2026-07-26
AFL2154 Aeroflot Russian Airlines 11 2026-07-26
AFL1943 Aeroflot Russian Airlines 9 2026-05-29
AFL1942 Aeroflot Russian Airlines 7 2026-05-30
AFL1941 Aeroflot Russian Airlines 7 2026-06-14
AFL2119 Aeroflot Russian Airlines 6 2026-07-25
AFL1524 Aeroflot Russian Airlines 6 2026-07-22
AFL1940 Aeroflot Russian Airlines 5 2026-07-15
AFL2135 Aeroflot Russian Airlines 4 2026-06-08
AFL2134 - 4 2026-07-09
AFL1491 Aeroflot Russian Airlines 4 2026-07-06
AFL1490 Aeroflot Russian Airlines 4 2026-07-06
AFL2118 Aeroflot Russian Airlines 3 2026-07-17
AFL1967 - 3 2026-06-20
AFL1962 Aeroflot Russian Airlines 3 2026-05-28
AFL1480 - 3 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL2155 IST → SVO Jul 26, 16:50 UTCJul 26, 17:25 UTC35m
2026-07-26 AFL2154 SVO → IST Jul 26, 14:35 UTCJul 26, 15:05 UTC30m
2026-07-25 AFL1214 SVO → SVO Jul 25, 14:15 UTCJul 25, 14:35 UTC20m
2026-07-25 AFL2119 BJV → SVO Jul 25, 06:05 UTCJul 25, 08:00 UTC1h 55m
2026-07-24 AFL2155 IST → SVO Jul 24, 17:10 UTCJul 25, 04:40 UTC11h 30m
2026-07-24 AFL1431 BAX → SVO Jul 24, 06:25 UTCJul 24, 15:45 UTC9h 20m
2026-07-22 AFL2155 IST → SVO Jul 22, 16:45 UTCJul 22, 18:50 UTC2h 5m
2026-07-22 AFL2154 SVO → IST Jul 22, 13:20 UTCJul 22, 15:20 UTC2h 0m
2026-07-22 AFL1524 SVO → RGK Jul 22, 01:15 UTCJul 22, 01:25 UTC10m
2026-07-21 AFL1524 SVO → RGK Jul 21, 21:35 UTCJul 21, 21:50 UTC15m
2026-07-21 AFL2137 - Jul 21, 13:20 UTCJul 21, 13:50 UTC30m
2026-07-21 AFL2136 SVO → IST Jul 21, 10:20 UTCJul 21, 10:50 UTC30m
2026-07-20 AFL2155 IST → SVO Jul 20, 16:40 UTCJul 20, 18:45 UTC2h 5m
2026-07-20 AFL2154 SVO → IST Jul 20, 13:10 UTCJul 20, 15:10 UTC2h 0m
2026-07-20 AFL007 - Jul 20, 07:05 UTCJul 20, 08:10 UTC1h 5m
2026-07-19 AFL1195 - Jul 19, 20:35 UTCJul 19, 21:00 UTC25m
2026-07-18 AFL2155 IST → SVO Jul 18, 16:40 UTCJul 18, 18:35 UTC1h 55m
2026-07-18 AFL2154 SVO → IST Jul 18, 00:39 UTCJul 18, 15:00 UTC14h 21m
2026-07-17 AFL2119 BJV → SVO Jul 17, 06:50 UTCJul 18, 06:45 UTC23h 56m
2026-07-17 AFL2119 BJV → SVO Jul 17, 04:59 UTCJul 18, 00:45 UTC19h 45m
2026-07-17 AFL2118 SVO → BJV Jul 17, 02:45 UTCJul 17, 03:34 UTC50m
2026-07-16 AFL2118 SVO → BJV Jul 16, 22:59 UTCJul 16, 23:20 UTC20m
2026-07-16 AFL2155 - Jul 16, 16:25 UTCJul 16, 18:19 UTC1h 55m
2026-07-16 AFL2154 - Jul 16, 14:25 UTCJul 16, 15:05 UTC40m
2026-07-15 AFL1940 SVO → ALA Jul 15, 20:25 UTCJul 15, 20:40 UTC15m
2026-07-15 AFL2137 - Jul 15, 13:15 UTCJul 15, 13:45 UTC30m
2026-07-15 AFL2136 - Jul 15, 10:25 UTCJul 15, 10:55 UTC30m
2026-07-15 AFL2136 SVO → SVO Jul 15, 06:00 UTCJul 15, 06:30 UTC30m
2026-07-14 AFL2155 - Jul 14, 17:40 UTCJul 14, 19:35 UTC1h 55m
2026-07-13 AFL2154 - Jul 13, 21:15 UTCJul 14, 15:15 UTC18h 0m
2026-07-13 AFL2121 - Jul 13, 11:15 UTCJul 14, 00:25 UTC13h 10m
2026-07-13 AFL2120 - Jul 13, 08:50 UTCJul 13, 09:40 UTC50m
2026-07-12 AFL2119 - Jul 12, 05:05 UTCJul 12, 05:45 UTC40m
2026-07-11 AFL2155 - Jul 11, 16:05 UTCJul 12, 03:40 UTC11h 35m
2026-07-11 AFL2154 - Jul 11, 12:35 UTCJul 11, 14:40 UTC2h 5m
2026-07-11 AFL2154 SVO → SVO Jul 11, 09:35 UTCJul 11, 10:15 UTC40m
2026-07-10 AFL1525 - Jul 10, 14:55 UTCJul 11, 08:05 UTC17h 10m
2026-07-09 AFL2130 - Jul 9, 21:05 UTCJul 10, 13:15 UTC16h 10m
2026-07-09 AFL2134 - Jul 9, 18:55 UTCJul 9, 19:10 UTC15m
2026-07-09 AFL1152 SVO → SVO Jul 9, 04:25 UTCJul 9, 04:50 UTC25m
2026-07-08 AFL2155 - Jul 8, 16:35 UTCJul 8, 18:40 UTC2h 5m
2026-07-08 AFL2154 - Jul 8, 14:20 UTCJul 8, 15:05 UTC45m
2026-07-07 AFL2137 - Jul 7, 13:05 UTCJul 7, 13:35 UTC30m
2026-07-07 AFL2136 - Jul 7, 10:30 UTCJul 7, 10:55 UTC25m
2026-07-06 AFL1491 KJA → SVO Jul 6, 15:10 UTCJul 6, 15:45 UTC35m
2026-07-06 AFL1490 SVO → KJA Jul 6, 01:15 UTCJul 6, 13:05 UTC11h 50m
2026-07-05 AFL2119 - Jul 5, 06:50 UTCJul 6, 03:25 UTC20h 35m
2026-07-05 AFL2119 - Jul 5, 04:55 UTCJul 6, 03:25 UTC22h 30m
2026-07-05 AFL2118 - Jul 5, 01:25 UTCJul 5, 03:30 UTC2h 5m
2026-07-03 AFL2137 IST → SVO Jul 3, 13:20 UTCJul 3, 13:50 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-73707 page for operator, model, and routing details .

Mode-S 151FEB frequently asked

What is Mode-S code 151FEB?
151FEB is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73707.
Where is Mode-S 151FEB registered?
Mode-S code 151FEB is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FEB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FEB, octal 05217753, decimal 1,384,427.
What flights does 151FEB operate?
Mode-S 151FEB has broadcast 20 distinct callsigns, including AFL2136, AFL2130, AFL2137, AFL2131, AFL2155.