Apparatus

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sensors Mode-S transponder

151D9B

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73115 · BOEING 737-800

Hex
151D9B
Octal
05216633
Decimal
1,383,835
Country
RU
Tail
RA-73115
Type
B738
No current signal · last broadcast 12h ago
Flights observed
114
Distinct callsigns
20
Country
RU
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 151D9B.

Country allocation

The ICAO 24-bit address 151D9B 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
AFL905 Aeroflot Russian Airlines 11 2026-05-29
AFL425 Aeroflot Russian Airlines 8 2026-05-13
AFL423 Aeroflot Russian Airlines 8 2026-05-02
AFL901 Aeroflot Russian Airlines 6 2026-05-28
AFL900 Aeroflot Russian Airlines 5 2026-05-28
AFL802 Aeroflot Russian Airlines 5 2026-05-14
AFL2146 Aeroflot Russian Airlines 5 2026-05-09
AFL904 Aeroflot Russian Airlines 4 2026-05-28
AFL426 Aeroflot Russian Airlines 4 2026-05-11
AFL2149 Aeroflot Russian Airlines 4 2026-05-25
AFL676 Aeroflot Russian Airlines 3 2026-05-14
AFL430 Aeroflot Russian Airlines 3 2026-04-15
AFL427 - 3 2026-04-16
AFL1487 Aeroflot Russian Airlines 3 2026-05-21
AFL677 Aeroflot Russian Airlines 2 2026-05-14
AFL434 Aeroflot Russian Airlines 2 2026-05-03
AFL431 - 2 2026-04-15
AFL428 Aeroflot Russian Airlines 2 2026-04-13
AFL422 Aeroflot Russian Airlines 2 2026-04-30
AFL2148 Aeroflot Russian Airlines 2 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL905 HRG → SVX May 29, 06:00 UTCMay 29, 13:45 UTC7h 45m
2026-05-28 AFL904 SVX → HRG May 28, 10:50 UTCMay 29, 08:30 UTC21h 40m
2026-05-28 AFL901 SSH → SVX May 28, 09:50 UTCMay 29, 08:30 UTC22h 40m
2026-05-28 AFL900 SVX → SSH May 28, 05:20 UTCMay 28, 07:30 UTC2h 10m
2026-05-27 AFL900 SVX → SSH May 27, 10:50 UTCMay 28, 07:30 UTC20h 40m
2026-05-27 AFL905 HRG → SVX May 27, 09:55 UTCMay 28, 07:30 UTC21h 35m
2026-05-27 AFL905 HRG → SVX May 27, 06:49 UTCMay 28, 06:45 UTC23h 55m
2026-05-27 AFL905 HRG → SVX May 27, 06:29 UTCMay 27, 12:25 UTC5h 56m
2026-05-26 AFL901 SSH → SVX May 26, 09:19 UTCMay 27, 07:10 UTC21h 50m
2026-05-26 AFL900 SVX → SSH May 26, 04:50 UTCMay 26, 10:34 UTC5h 45m
2026-05-25 AFL1418 SVO → SVX May 25, 16:30 UTCMay 25, 16:50 UTC20m
2026-05-25 AFL2149 AYT → SVO May 25, 06:50 UTCMay 25, 07:30 UTC40m
2026-05-25 AFL2149 AYT → SVO May 25, 05:50 UTCMay 25, 06:10 UTC20m
2026-05-25 AFL2148 SVO → AYT May 25, 03:40 UTCMay 25, 04:00 UTC20m
2026-05-24 AFL1863 EVN → SVO May 24, 17:20 UTCMay 24, 17:45 UTC25m
2026-05-24 AFL1862 SVO → EVN May 24, 15:15 UTCMay 24, 15:25 UTC10m
2026-05-24 AFL2149 AYT → SVO May 24, 06:40 UTCMay 24, 08:30 UTC1h 50m
2026-05-23 AFL2161 AYT → SVO May 23, 16:00 UTCMay 24, 04:20 UTC12h 21m
2026-05-23 AFL2160 SVO → AYT May 23, 13:50 UTCMay 23, 14:00 UTC10m
2026-05-22 AFL1490 SVO → KJA May 22, 12:30 UTCMay 23, 03:40 UTC15h 10m
2026-05-21 AFL1490 SVO → KJA May 21, 15:45 UTCMay 22, 13:00 UTC21h 15m
2026-05-21 AFL1487 KJA → SVO May 21, 13:05 UTCMay 22, 12:45 UTC23h 40m
2026-05-21 AFL1486 SVO → KJA May 21, 10:25 UTCMay 21, 16:10 UTC5h 45m
2026-05-19 AFL1487 KJA → SVO May 19, 22:55 UTCMay 20, 16:20 UTC17h 26m
2026-05-19 AFL1487 KJA → SVO May 19, 17:40 UTCMay 20, 16:20 UTC22h 41m
2026-05-14 AFL803 SVO → KZN May 14, 13:35 UTCMay 14, 16:00 UTC2h 25m
2026-05-14 AFL676 KRR → AYT May 14, 11:45 UTCMay 14, 12:05 UTC20m
2026-05-14 AFL677 AYT → KRR May 14, 06:15 UTCMay 14, 07:20 UTC1h 5m
2026-05-14 AFL802 KZN → SVO May 14, 04:25 UTCMay 14, 04:51 UTC25m
2026-05-13 AFL802 KZN → SVO May 13, 09:25 UTCMay 14, 03:35 UTC18h 10m
2026-05-13 AFL802 KZN → SVO May 13, 06:50 UTCMay 14, 03:35 UTC20h 45m
2026-05-13 AFL802 KZN → SVO May 13, 06:35 UTCMay 14, 03:35 UTC21h 0m
2026-05-13 AFL425 HRG → SVO May 13, 03:05 UTCMay 14, 02:45 UTC23h 40m
2026-05-12 AFL2149 AYT → SVO May 12, 05:45 UTCMay 12, 08:05 UTC2h 20m
2026-05-12 AFL2148 SVO → AYT May 12, 03:35 UTCMay 12, 04:10 UTC35m
2026-05-11 AFL426 SVO → SSH May 11, 07:45 UTCMay 11, 14:00 UTC6h 15m
2026-05-10 AFL425 HRG → SVO May 10, 14:25 UTCMay 10, 21:44 UTC7h 20m
2026-05-09 AFL424 SVO → HRG May 9, 15:25 UTCMay 10, 09:35 UTC18h 10m
2026-05-09 AFL2146 SVO → AYT May 9, 13:40 UTCMay 9, 14:00 UTC20m
2026-05-08 AFL2146 SVO → AYT May 8, 18:50 UTCMay 9, 12:55 UTC18h 5m
2026-05-08 AFL2146 SVO → AYT May 8, 17:05 UTCMay 9, 12:55 UTC19h 50m
2026-05-07 AFL425 HRG → SVO May 7, 18:50 UTCMay 8, 14:25 UTC19h 35m
2026-05-07 AFL425 HRG → SVO May 7, 18:05 UTCMay 8, 14:25 UTC20h 20m
2026-05-07 AFL425 HRG → SVO May 7, 14:50 UTCMay 8, 14:25 UTC23h 35m
2026-05-07 AFL425 HRG → SVO May 7, 14:00 UTCMay 8, 11:30 UTC21h 29m
2026-05-07 AFL425 HRG → SVO May 7, 02:50 UTCMay 7, 21:15 UTC18h 25m
2026-05-07 AFL425 HRG → SVO May 7, 01:55 UTCMay 7, 21:15 UTC19h 20m
2026-05-06 AFL2147 AYT → SVO May 6, 15:05 UTCMay 6, 17:00 UTC1h 55m
2026-05-06 AFL2146 SVO → AYT May 6, 12:15 UTCMay 6, 12:25 UTC10m
2026-05-06 AFL2146 SVO → AYT May 6, 08:50 UTCMay 6, 09:25 UTC35m

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-73115 page for operator, model, and routing details .

Mode-S 151D9B frequently asked

What is Mode-S code 151D9B?
151D9B is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73115.
Where is Mode-S 151D9B registered?
Mode-S code 151D9B is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D9B broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D9B, octal 05216633, decimal 1,383,835.
What flights does 151D9B operate?
Mode-S 151D9B has broadcast 20 distinct callsigns, including AFL905, AFL425, AFL423, AFL901, AFL900.