Apparatus

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sensors Mode-S transponder

151DB5

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73141 · BOEING 777-300ER

Hex
151DB5
Octal
05216665
Decimal
1,383,861
Country
RU
Tail
RA-73141
Type
B77W
No current signal · last broadcast 4h ago
Flights observed
113
Distinct callsigns
5
Country
RU
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 151DB5.

Country allocation

The ICAO 24-bit address 151DB5 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 5 distinct

Callsign Airline Flights Last seen
AFL285 Aeroflot Russian Airlines 49 2026-05-29
AFL284 Aeroflot Russian Airlines 33 2026-05-29
AFL272 Aeroflot Russian Airlines 19 2026-05-26
AFL273 Aeroflot Russian Airlines 11 2026-05-27
AFL1731 Aeroflot Russian Airlines 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL284 FCO → SVO May 29, 21:05 UTCMay 29, 22:05 UTC1h 0m
2026-05-29 AFL284 FCO → SVO May 29, 16:35 UTCMay 29, 17:05 UTC30m
2026-05-29 AFL285 SVO → MXP May 29, 13:30 UTCMay 29, 13:55 UTC25m
2026-05-28 AFL285 SVO → MXP May 28, 17:45 UTCMay 29, 08:25 UTC14h 40m
2026-05-27 AFL273 BKK → SVO May 27, 06:44 UTCMay 27, 15:10 UTC8h 25m
2026-05-26 AFL272 SVO → BKK May 26, 09:19 UTCMay 27, 04:14 UTC18h 55m
2026-05-26 AFL272 SVO → BKK May 26, 07:19 UTCMay 27, 04:14 UTC20h 55m
2026-05-26 AFL273 BKK → SVO May 26, 06:34 UTCMay 27, 04:14 UTC21h 40m
2026-05-26 AFL272 SVO → BKK May 26, 00:14 UTCMay 26, 04:04 UTC3h 50m
2026-05-25 AFL272 SVO → BKK May 25, 07:20 UTCMay 26, 04:04 UTC20h 44m
2026-05-24 AFL285 SVO → MXP May 24, 20:45 UTCMay 25, 08:20 UTC11h 35m
2026-05-24 AFL284 FCO → SVO May 24, 16:25 UTCMay 24, 16:50 UTC25m
2026-05-23 AFL285 SVO → MXP May 23, 21:00 UTCMay 24, 12:05 UTC15h 5m
2026-05-23 AFL284 FCO → SVO May 23, 16:30 UTCMay 23, 16:55 UTC25m
2026-05-22 AFL284 FCO → SVO May 22, 21:55 UTCMay 23, 08:25 UTC10h 30m
2026-05-22 AFL285 SVO → MXP May 22, 07:05 UTCMay 22, 22:50 UTC15h 45m
2026-05-21 AFL285 SVO → MXP May 21, 21:25 UTCMay 22, 08:00 UTC10h 35m
2026-05-21 AFL285 SVO → MXP May 21, 07:20 UTCMay 22, 07:15 UTC23h 55m
2026-05-21 AFL285 SVO → MXP May 21, 07:10 UTCMay 21, 22:10 UTC15h 0m
2026-05-20 AFL285 SVO → MXP May 20, 21:25 UTCMay 21, 08:05 UTC10h 40m
2026-05-20 AFL285 SVO → MXP May 20, 11:45 UTCMay 21, 08:05 UTC20h 20m
2026-05-20 AFL285 SVO → MXP May 20, 07:20 UTCMay 21, 07:15 UTC23h 55m
2026-05-20 AFL285 SVO → MXP May 20, 07:10 UTCMay 20, 22:10 UTC15h 0m
2026-05-19 AFL285 SVO → MXP May 19, 21:15 UTCMay 20, 11:55 UTC14h 41m
2026-05-19 AFL285 SVO → MXP May 19, 11:50 UTCMay 20, 08:05 UTC20h 16m
2026-05-19 AFL285 SVO → MXP May 19, 07:20 UTCMay 20, 07:15 UTC23h 56m
2026-05-18 AFL285 SVO → MXP May 18, 21:30 UTCMay 19, 21:15 UTC23h 45m
2026-05-17 AFL273 BKK → SVO May 17, 06:40 UTCMay 17, 10:35 UTC3h 55m
2026-05-16 AFL272 SVO → BKK May 16, 09:21 UTCMay 17, 04:15 UTC18h 55m
2026-05-16 AFL273 BKK → SVO May 16, 07:20 UTCMay 17, 04:15 UTC20h 55m
2026-05-16 AFL273 BKK → SVO May 16, 06:35 UTCMay 17, 04:15 UTC21h 40m
2026-05-15 AFL272 SVO → BKK May 15, 09:20 UTCMay 16, 04:10 UTC18h 49m
2026-05-15 AFL272 SVO → BKK May 15, 07:20 UTCMay 16, 04:10 UTC20h 49m
2026-05-15 AFL273 BKK → SVO May 15, 06:30 UTCMay 16, 04:10 UTC21h 39m
2026-05-14 AFL272 SVO → BKK May 14, 11:45 UTCMay 15, 04:15 UTC16h 30m
2026-05-14 AFL272 SVO → BKK May 14, 07:25 UTCMay 15, 04:15 UTC20h 50m
2026-05-14 AFL272 SVO → BKK May 14, 05:50 UTCMay 15, 04:15 UTC22h 25m
2026-05-13 AFL284 FCO → SVO May 13, 21:00 UTCMay 14, 12:05 UTC15h 5m
2026-05-10 AFL273 BKK → SVO May 10, 06:35 UTCMay 10, 15:05 UTC8h 30m
2026-05-09 AFL272 SVO → BKK May 9, 09:20 UTCMay 10, 04:09 UTC18h 50m
2026-05-09 AFL272 SVO → BKK May 9, 07:20 UTCMay 10, 04:09 UTC20h 50m
2026-05-09 AFL272 SVO → BKK May 9, 06:30 UTCMay 10, 04:09 UTC21h 40m
2026-05-08 AFL272 SVO → BKK May 8, 09:19 UTCMay 9, 04:10 UTC18h 50m
2026-05-08 AFL272 SVO → BKK May 8, 07:20 UTCMay 9, 04:10 UTC20h 50m
2026-05-08 AFL273 BKK → SVO May 8, 06:35 UTCMay 9, 04:10 UTC21h 35m
2026-05-07 AFL272 SVO → BKK May 7, 09:25 UTCMay 8, 04:39 UTC19h 15m
2026-05-07 AFL273 BKK → SVO May 7, 07:25 UTCMay 8, 04:39 UTC21h 15m
2026-05-07 AFL273 BKK → SVO May 7, 06:45 UTCMay 8, 04:39 UTC21h 55m
2026-05-07 AFL272 SVO → BKK May 7, 00:40 UTCMay 7, 04:20 UTC3h 40m
2026-05-06 AFL272 SVO → BKK May 6, 20:05 UTCMay 6, 20:30 UTC25m

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-73141 page for operator, model, and routing details .

Mode-S 151DB5 frequently asked

What is Mode-S code 151DB5?
151DB5 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73141.
Where is Mode-S 151DB5 registered?
Mode-S code 151DB5 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DB5 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DB5, octal 05216665, decimal 1,383,861.
What flights does 151DB5 operate?
Mode-S 151DB5 has broadcast 5 distinct callsigns, including AFL285, AFL284, AFL272, AFL273, AFL1731.