Apparatus

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sensors Mode-S transponder

151DB6

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73142 · BOEING 777-300ER

Hex
151DB6
Octal
05216666
Decimal
1,383,862
Country
RU
Tail
RA-73142
Type
B77W
No current signal · last broadcast 19h ago
Flights observed
113
Distinct callsigns
8
Country
RU
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 151DB6.

Country allocation

The ICAO 24-bit address 151DB6 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 8 distinct

Callsign Airline Flights Last seen
AFL285 Aeroflot Russian Airlines 41 2026-05-27
AFL272 Aeroflot Russian Airlines 33 2026-05-29
AFL273 Aeroflot Russian Airlines 19 2026-05-29
AFL284 Aeroflot Russian Airlines 12 2026-05-26
AFL585 Aeroflot Russian Airlines 3 2026-04-15
AFL584 Aeroflot Russian Airlines 3 2026-04-15
AFL1715 Aeroflot Russian Airlines 1 2026-04-20
AFL1714 Aeroflot Russian Airlines 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL273 BKK → SVO May 29, 06:40 UTCMay 29, 10:30 UTC3h 50m
2026-05-29 AFL272 SVO → BKK May 29, 00:20 UTCMay 29, 04:15 UTC3h 55m
2026-05-27 AFL285 SVO → MXP May 27, 13:05 UTCMay 27, 13:25 UTC20m
2026-05-26 AFL285 SVO → MXP May 26, 17:44 UTCMay 27, 12:25 UTC18h 41m
2026-05-26 AFL284 FCO → SVO May 26, 16:30 UTCMay 26, 16:59 UTC30m
2026-05-25 AFL285 SVO → MXP May 25, 21:15 UTCMay 26, 08:59 UTC11h 45m
2026-05-24 AFL273 BKK → SVO May 24, 06:45 UTCMay 24, 10:45 UTC4h 0m
2026-05-24 AFL272 SVO → BKK May 24, 00:30 UTCMay 24, 04:20 UTC3h 50m
2026-05-23 AFL272 SVO → BKK May 23, 19:55 UTCMay 23, 20:25 UTC30m
2026-05-23 AFL273 BKK → SVO May 23, 06:40 UTCMay 23, 10:45 UTC4h 5m
2026-05-22 AFL272 SVO → BKK May 22, 09:35 UTCMay 23, 04:35 UTC18h 59m
2026-05-22 AFL272 SVO → BKK May 22, 07:35 UTCMay 23, 04:35 UTC20h 59m
2026-05-22 AFL272 SVO → BKK May 22, 06:40 UTCMay 23, 04:35 UTC21h 54m
2026-05-21 AFL272 SVO → BKK May 21, 09:35 UTCMay 22, 04:15 UTC18h 40m
2026-05-21 AFL272 SVO → BKK May 21, 07:35 UTCMay 22, 04:15 UTC20h 40m
2026-05-21 AFL273 BKK → SVO May 21, 06:40 UTCMay 22, 04:15 UTC21h 35m
2026-05-20 AFL272 SVO → BKK May 20, 09:45 UTCMay 21, 04:35 UTC18h 50m
2026-05-20 AFL272 SVO → BKK May 20, 07:35 UTCMay 21, 04:35 UTC21h 0m
2026-05-20 AFL273 BKK → SVO May 20, 07:15 UTCMay 21, 04:35 UTC21h 20m
2026-05-20 AFL272 SVO → BKK May 20, 01:15 UTCMay 20, 05:00 UTC3h 46m
2026-05-17 AFL285 SVO → MXP May 17, 21:15 UTCMay 18, 07:55 UTC10h 40m
2026-05-17 AFL285 SVO → MXP May 17, 07:35 UTCMay 18, 07:30 UTC23h 55m
2026-05-17 AFL285 SVO → MXP May 17, 07:05 UTCMay 17, 22:01 UTC14h 55m
2026-05-16 AFL285 SVO → MXP May 16, 11:46 UTCMay 17, 08:00 UTC20h 15m
2026-05-16 AFL285 SVO → MXP May 16, 07:35 UTCMay 17, 07:30 UTC23h 55m
2026-05-15 AFL285 SVO → MXP May 15, 21:10 UTCMay 16, 12:05 UTC14h 56m
2026-05-14 AFL273 BKK → SVO May 14, 06:35 UTCMay 14, 10:40 UTC4h 5m
2026-05-13 AFL272 SVO → BKK May 13, 12:05 UTCMay 14, 04:10 UTC16h 5m
2026-05-13 AFL272 SVO → BKK May 13, 07:35 UTCMay 14, 04:10 UTC20h 35m
2026-05-13 AFL272 SVO → BKK May 13, 05:45 UTCMay 14, 04:10 UTC22h 25m
2026-05-12 AFL285 SVO → MXP May 12, 21:01 UTCMay 13, 12:25 UTC15h 25m
2026-05-12 AFL285 SVO → MXP May 12, 11:50 UTCMay 13, 08:05 UTC20h 15m
2026-05-12 AFL285 SVO → MXP May 12, 07:35 UTCMay 13, 07:30 UTC23h 55m
2026-05-12 AFL285 SVO → MXP May 12, 05:40 UTCMay 12, 23:10 UTC17h 30m
2026-05-11 AFL285 SVO → MXP May 11, 21:35 UTCMay 12, 21:30 UTC23h 55m
2026-05-11 AFL285 SVO → MXP May 11, 17:40 UTCMay 12, 12:10 UTC18h 30m
2026-05-11 AFL285 SVO → MXP May 11, 17:10 UTCMay 12, 12:10 UTC19h 0m
2026-05-11 AFL285 SVO → MXP May 11, 12:00 UTCMay 12, 08:05 UTC20h 5m
2026-05-11 AFL285 SVO → MXP May 11, 07:35 UTCMay 12, 07:30 UTC23h 55m
2026-05-11 AFL285 SVO → MXP May 11, 05:50 UTCMay 11, 22:35 UTC16h 45m
2026-05-10 AFL285 SVO → MXP May 10, 21:35 UTCMay 11, 21:30 UTC23h 56m
2026-05-10 AFL285 SVO → MXP May 10, 21:10 UTCMay 11, 17:40 UTC20h 31m
2026-05-10 AFL285 SVO → MXP May 10, 17:49 UTCMay 11, 17:15 UTC23h 26m
2026-05-10 AFL285 SVO → MXP May 10, 08:05 UTCMay 11, 07:30 UTC23h 25m
2026-05-10 AFL284 FCO → SVO May 10, 06:50 UTCMay 10, 23:19 UTC16h 30m
2026-05-09 AFL284 FCO → SVO May 9, 23:35 UTCMay 10, 23:19 UTC23h 45m
2026-05-09 AFL284 FCO → SVO May 9, 22:55 UTCMay 10, 21:30 UTC22h 35m
2026-05-09 AFL284 FCO → SVO May 9, 18:20 UTCMay 9, 18:50 UTC30m
2026-05-08 AFL285 SVO → MXP May 8, 20:55 UTCMay 9, 14:50 UTC17h 55m
2026-05-08 AFL285 SVO → MXP May 8, 15:35 UTCMay 9, 14:50 UTC23h 15m

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-73142 page for operator, model, and routing details .

Mode-S 151DB6 frequently asked

What is Mode-S code 151DB6?
151DB6 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73142.
Where is Mode-S 151DB6 registered?
Mode-S code 151DB6 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DB6 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DB6, octal 05216666, decimal 1,383,862.
What flights does 151DB6 operate?
Mode-S 151DB6 has broadcast 8 distinct callsigns, including AFL285, AFL272, AFL273, AFL284, AFL585.