Apparatus

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sensors Mode-S transponder

151D86

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73094 · BOEING 737-800

Hex
151D86
Octal
05216606
Decimal
1,383,814
Country
RU
Tail
RA-73094
Type
B738
No current signal · last broadcast 8h ago
Flights observed
171
Distinct callsigns
20
Country
RU
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 151D86.

Country allocation

The ICAO 24-bit address 151D86 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
AFL814 - 33 2026-06-22
AFL644 - 29 2026-07-14
AFL815 - 12 2026-07-14
AFL645 - 12 2026-06-22
AFL851 - 10 2026-07-11
AFL856 - 7 2026-06-24
AFL850 - 6 2026-06-23
AFL853 - 4 2026-06-28
AFL425 Aeroflot Russian Airlines 4 2026-06-16
AFL857 Aeroflot Russian Airlines 3 2026-05-07
AFL853D - 3 2026-07-12
AFL852 - 3 2026-07-05
AFL623 Aeroflot Russian Airlines 3 2026-04-20
AFL622 Aeroflot Russian Airlines 3 2026-04-19
AFL438 - 3 2026-06-27
AFL1454 - 3 2026-07-01
AFL2159 - 2 2026-07-10
AFL2158 - 2 2026-07-10
AFL1481 Aeroflot Russian Airlines 2 2026-05-27
AFL1480 Aeroflot Russian Airlines 2 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFL815 - Jul 14, 11:25 UTCJul 14, 11:40 UTC15m
2026-07-14 AFL815 - Jul 14, 10:15 UTCJul 14, 10:30 UTC15m
2026-07-14 AFL644 - Jul 14, 03:45 UTCJul 14, 08:45 UTC5h 0m
2026-07-12 AFL7772 - Jul 12, 22:10 UTCJul 12, 22:50 UTC40m
2026-07-12 AFL853D - Jul 12, 08:30 UTCJul 12, 20:35 UTC12h 5m
2026-07-11 AFL853D - Jul 11, 23:50 UTCJul 12, 20:35 UTC20h 45m
2026-07-11 AFL853D - Jul 11, 21:35 UTCJul 12, 20:35 UTC23h 0m
2026-07-11 AFL851 - Jul 11, 12:35 UTCJul 12, 11:10 UTC22h 35m
2026-07-10 AFL2159 - Jul 10, 15:35 UTCJul 11, 07:05 UTC15h 30m
2026-07-10 AFL2158 - Jul 10, 12:15 UTCJul 10, 14:00 UTC1h 45m
2026-07-09 AFL1238 SVO → UFA Jul 9, 15:35 UTCJul 9, 15:55 UTC20m
2026-07-05 AFL852 - Jul 5, 12:45 UTCJul 6, 02:45 UTC14h 0m
2026-07-04 AFL852 - Jul 4, 12:35 UTCJul 5, 03:20 UTC14h 45m
2026-07-03 AFL2169 DLM → SVO Jul 3, 17:25 UTCJul 3, 19:20 UTC1h 55m
2026-07-03 AFL2168 SVO → DLM Jul 3, 15:20 UTCJul 3, 15:50 UTC30m
2026-07-02 AFL1136 SVO → SVO Jul 2, 10:20 UTCJul 2, 11:15 UTC55m
2026-07-01 AFL1454 - Jul 1, 19:25 UTCJul 2, 03:40 UTC8h 15m
2026-07-01 AFL1454 - Jul 1, 07:35 UTCJul 2, 03:40 UTC20h 5m
2026-07-01 AFL1454 - Jul 1, 02:25 UTCJul 1, 22:20 UTC19h 55m
2026-06-30 AFL2159 - Jun 30, 14:55 UTCJul 1, 07:45 UTC16h 50m
2026-06-30 AFL2158 - Jun 30, 12:55 UTCJun 30, 13:35 UTC40m
2026-06-29 AFL1869 - Jun 29, 21:05 UTCJun 29, 21:34 UTC30m
2026-06-28 AFL853 - Jun 28, 13:00 UTCJun 29, 03:14 UTC14h 15m
2026-06-27 AFL439 SSH → SVO Jun 27, 12:19 UTCJun 27, 15:05 UTC2h 45m
2026-06-27 AFL438 - Jun 27, 08:10 UTCJun 27, 10:19 UTC2h 10m
2026-06-26 AFL438 - Jun 26, 13:34 UTCJun 27, 10:19 UTC20h 45m
2026-06-26 AFL438 - Jun 26, 13:19 UTCJun 27, 10:19 UTC21h 0m
2026-06-25 AFL1461 - Jun 25, 09:50 UTCJun 25, 10:20 UTC30m
2026-06-24 AFL853 - Jun 24, 13:05 UTCJun 25, 02:14 UTC13h 10m
2026-06-24 AFL856 - Jun 24, 02:54 UTCJun 24, 21:00 UTC18h 5m
2026-06-24 AFL856 - Jun 24, 00:25 UTCJun 24, 21:00 UTC20h 35m
2026-06-23 AFL856 - Jun 23, 20:40 UTCJun 24, 16:05 UTC19h 25m
2026-06-23 AFL850 - Jun 23, 18:10 UTCJun 24, 16:05 UTC21h 55m
2026-06-23 AFL850 - Jun 23, 04:25 UTCJun 24, 03:10 UTC22h 45m
2026-06-23 AFL850 - Jun 23, 02:04 UTCJun 24, 00:40 UTC22h 35m
2026-06-22 AFL851 - Jun 22, 20:55 UTCJun 23, 18:29 UTC21h 35m
2026-06-22 AFL645 - Jun 22, 09:34 UTCJun 23, 04:39 UTC19h 5m
2026-06-22 AFL645 - Jun 22, 08:10 UTCJun 23, 04:39 UTC20h 30m
2026-06-22 AFL814 - Jun 22, 05:54 UTCJun 22, 06:25 UTC30m
2026-06-21 AFL814 - Jun 21, 09:35 UTCJun 22, 06:25 UTC20h 50m
2026-06-21 AFL814 - Jun 21, 09:15 UTCJun 22, 06:25 UTC21h 10m
2026-06-20 AFL644 - Jun 20, 12:24 UTCJun 21, 07:29 UTC19h 5m
2026-06-20 AFL644 - Jun 20, 09:34 UTCJun 21, 07:29 UTC21h 55m
2026-06-20 AFL644 - Jun 20, 09:24 UTCJun 21, 07:29 UTC22h 5m
2026-06-20 AFL645 - Jun 20, 08:14 UTCJun 20, 08:29 UTC15m
2026-06-20 AFL814 - Jun 20, 05:04 UTCJun 20, 05:59 UTC55m
2026-06-19 AFL814 - Jun 19, 09:04 UTCJun 20, 05:59 UTC20h 55m
2026-06-19 AFL814 - Jun 19, 05:45 UTCJun 19, 06:14 UTC30m
2026-06-18 AFL815 - Jun 18, 09:35 UTCJun 19, 06:14 UTC20h 39m
2026-06-18 AFL644 - Jun 18, 05:40 UTCJun 18, 07:30 UTC1h 50m

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-73094 page for operator, model, and routing details .

Mode-S 151D86 frequently asked

What is Mode-S code 151D86?
151D86 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73094.
Where is Mode-S 151D86 registered?
Mode-S code 151D86 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D86 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D86, octal 05216606, decimal 1,383,814.
What flights does 151D86 operate?
Mode-S 151D86 has broadcast 20 distinct callsigns, including AFL814, AFL644, AFL815, AFL645, AFL851.