Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151DA9

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73129 · BOEING 737-800

Hex
151DA9
Octal
05216651
Decimal
1,383,849
Country
RU
Tail
RA-73129
Type
B738
No current signal · last broadcast 1h ago
Flights observed
102
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 151DA9.

Country allocation

The ICAO 24-bit address 151DA9 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
AFL427 Aeroflot Russian Airlines 9 2026-05-16
AFL904 Aeroflot Russian Airlines 6 2026-04-18
AFL905 Aeroflot Russian Airlines 5 2026-04-19
AFL901 Aeroflot Russian Airlines 5 2026-04-18
AFL900 Aeroflot Russian Airlines 5 2026-04-18
AFL2122 Aeroflot Russian Airlines 5 2026-05-11
AFL2124 Aeroflot Russian Airlines 4 2026-05-25
AFL425 Aeroflot Russian Airlines 3 2026-05-04
AFL423 Aeroflot Russian Airlines 3 2026-04-22
AFL2149 Aeroflot Russian Airlines 3 2026-05-27
AFL2148 Aeroflot Russian Airlines 3 2026-05-27
AFL2126 Aeroflot Russian Airlines 3 2026-05-14
AFL2125 Aeroflot Russian Airlines 3 2026-05-25
AFL2123 Aeroflot Russian Airlines 3 2026-05-11
AFL803 Aeroflot Russian Airlines 2 2026-05-28
AFL802 Aeroflot Russian Airlines 2 2026-05-27
AFL676 Aeroflot Russian Airlines 2 2026-05-29
AFL426 Aeroflot Russian Airlines 2 2026-05-03
AFL2127 Aeroflot Russian Airlines 2 2026-05-14
AFL2121 Aeroflot Russian Airlines 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL807 AYT → OVB May 29, 14:00 UTCMay 30, 00:15 UTC10h 15m
2026-05-29 AFL676 KRR → AYT May 29, 06:45 UTCMay 29, 12:45 UTC6h 0m
2026-05-29 AFL806 OVB → AYT May 29, 04:30 UTCMay 29, 04:55 UTC25m
2026-05-28 AFL803 SVO → KZN May 28, 14:30 UTCMay 29, 00:10 UTC9h 40m
2026-05-28 AFL676 KRR → AYT May 28, 12:50 UTCMay 28, 13:05 UTC15m
2026-05-27 AFL802 KZN → SVO May 27, 21:00 UTCMay 28, 05:40 UTC8h 40m
2026-05-27 AFL2149 AYT → SVO May 27, 05:49 UTCMay 27, 07:45 UTC1h 55m
2026-05-27 AFL2148 SVO → AYT May 27, 03:45 UTCMay 27, 04:04 UTC20m
2026-05-26 AFL2161 AYT → SVO May 26, 16:15 UTCMay 26, 18:19 UTC2h 5m
2026-05-26 AFL2160 SVO → AYT May 26, 09:49 UTCMay 26, 10:10 UTC20m
2026-05-25 AFL1054 SVO → MCX May 25, 23:24 UTCMay 26, 00:19 UTC55m
2026-05-25 AFL2125 AYT → SVO May 25, 13:15 UTCMay 25, 15:15 UTC2h 0m
2026-05-25 AFL2124 SVO → AYT May 25, 10:50 UTCMay 25, 11:05 UTC15m
2026-05-24 AFL435 HRG → SVO May 24, 07:05 UTCMay 24, 10:55 UTC3h 50m
2026-05-22 AFL2147 AYT → SVO May 22, 15:15 UTCMay 22, 17:10 UTC1h 55m
2026-05-22 AFL2146 SVO → AYT May 22, 13:30 UTCMay 22, 13:45 UTC15m
2026-05-21 AFL803 SVO → KZN May 21, 13:20 UTCMay 21, 15:25 UTC2h 5m
2026-05-21 AFL677 AYT → KRR May 21, 06:05 UTCMay 21, 06:30 UTC25m
2026-05-21 AFL802 KZN → SVO May 21, 04:30 UTCMay 21, 04:40 UTC10m
2026-05-20 AFL1548 SVO → OVB May 20, 18:30 UTCMay 20, 18:50 UTC20m
2026-05-20 AFL1548 SVO → OVB May 20, 17:25 UTCMay 20, 17:50 UTC25m
2026-05-19 AFL2121 BJV → SVO May 19, 11:15 UTCMay 19, 13:50 UTC2h 35m
2026-05-18 AFL1869 EVN → SVO May 18, 20:35 UTCMay 19, 09:50 UTC13h 15m
2026-05-18 AFL429 SSH → SVO May 18, 07:40 UTCMay 18, 11:10 UTC3h 30m
2026-05-18 AFL428 SVO → SSH May 18, 03:45 UTCMay 18, 04:45 UTC1h 0m
2026-05-17 AFL1969 EVN → SVO May 17, 15:55 UTCMay 17, 16:50 UTC55m
2026-05-16 AFL427 SSH → SVO May 16, 08:51 UTCMay 16, 23:45 UTC14h 55m
2026-05-15 AFL427 SSH → SVO May 15, 18:40 UTCMay 16, 16:20 UTC21h 41m
2026-05-15 AFL2149 AYT → SVO May 15, 05:45 UTCMay 15, 08:25 UTC2h 40m
2026-05-15 AFL2148 SVO → AYT May 15, 03:55 UTCMay 15, 04:15 UTC20m
2026-05-14 AFL2127 AYT → SVO May 14, 14:20 UTCMay 15, 03:10 UTC12h 50m
2026-05-14 AFL2126 SVO → AYT May 14, 12:15 UTCMay 14, 12:50 UTC35m
2026-05-14 AFL2126 SVO → AYT May 14, 07:50 UTCMay 14, 08:20 UTC30m
2026-05-13 AFL2127 AYT → SVO May 13, 14:30 UTCMay 13, 16:55 UTC2h 25m
2026-05-13 AFL2126 SVO → AYT May 13, 11:40 UTCMay 13, 12:05 UTC25m
2026-05-11 AFL2123 DLM → SVO May 11, 14:40 UTCMay 12, 08:20 UTC17h 41m
2026-05-11 AFL2122 SVO → DLM May 11, 12:35 UTCMay 11, 12:55 UTC20m
2026-05-09 AFL2125 AYT → SVO May 9, 13:35 UTCMay 9, 13:55 UTC20m
2026-05-09 AFL2124 SVO → AYT May 9, 11:20 UTCMay 9, 11:35 UTC15m
2026-05-08 AFL2124 SVO → AYT May 8, 21:30 UTCMay 9, 10:35 UTC13h 5m
2026-05-08 AFL2698 - May 8, 19:35 UTCMay 8, 19:50 UTC15m
2026-05-07 AFL2125 AYT → SVO May 7, 13:10 UTCMay 7, 17:45 UTC4h 35m
2026-05-07 AFL2124 SVO → AYT May 7, 11:00 UTCMay 7, 11:15 UTC15m
2026-05-06 AFL1213 KUF → SVO May 6, 18:10 UTCMay 6, 18:20 UTC10m
2026-05-06 AFL1212 SVO → KUF May 6, 11:05 UTCMay 6, 11:40 UTC35m
2026-05-05 AFL1865 EVN → SVO May 5, 21:01 UTCMay 5, 21:30 UTC30m
2026-05-04 AFL425 HRG → SVO May 4, 14:25 UTCMay 5, 09:35 UTC19h 11m
2026-05-04 AFL425 HRG → SVO May 4, 12:20 UTCMay 5, 09:35 UTC21h 16m
2026-05-03 AFL426 SVO → SSH May 3, 14:20 UTCMay 4, 10:00 UTC19h 40m
2026-05-02 AFL427 SSH → SVO May 2, 12:45 UTCMay 2, 15:30 UTC2h 45m

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-73129 page for operator, model, and routing details .

Mode-S 151DA9 frequently asked

What is Mode-S code 151DA9?
151DA9 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73129.
Where is Mode-S 151DA9 registered?
Mode-S code 151DA9 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DA9 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DA9, octal 05216651, decimal 1,383,849.
What flights does 151DA9 operate?
Mode-S 151DA9 has broadcast 20 distinct callsigns, including AFL427, AFL904, AFL905, AFL901, AFL900.