Apparatus

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sensors Mode-S transponder

151DA7

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73127 · BOEING 737-800

Hex
151DA7
Octal
05216647
Decimal
1,383,847
Country
RU
Tail
RA-73127
Type
B738
No current signal · last broadcast 8h ago
Flights observed
61
Distinct callsigns
20
Country
RU
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 151DA7.

Country allocation

The ICAO 24-bit address 151DA7 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
AFL1994 Aeroflot Russian Airlines 5 2026-05-13
AFL1995 Aeroflot Russian Airlines 4 2026-05-14
AFL426 Aeroflot Russian Airlines 3 2026-04-17
AFL2124 Aeroflot Russian Airlines 3 2026-04-24
AFL2123 Aeroflot Russian Airlines 3 2026-05-28
AFL435 Aeroflot Russian Airlines 2 2026-05-17
AFL427 - 2 2026-04-17
AFL2139 Aeroflot Russian Airlines 2 2026-05-26
AFL2125 Aeroflot Russian Airlines 2 2026-04-24
AFL2122 Aeroflot Russian Airlines 2 2026-05-28
AFL1967 Aeroflot Russian Airlines 2 2026-04-20
AFL1947 Aeroflot Russian Airlines 2 2026-05-15
AFL1946 Aeroflot Russian Airlines 2 2026-05-15
AFL1562 Aeroflot Russian Airlines 2 2026-05-18
AFL1538 Aeroflot Russian Airlines 2 2026-04-23
AFL1491 Aeroflot Russian Airlines 2 2026-05-29
AFL1423 - 2 2026-04-16
AFL7673 - 1 2026-05-08
AFL7602 - 1 2026-05-20
AFL439 Aeroflot Russian Airlines 1 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL1491 KJA → SVO May 29, 10:20 UTCMay 29, 18:05 UTC7h 46m
2026-05-29 AFL1490 SVO → KJA May 29, 09:15 UTCMay 29, 09:40 UTC25m
2026-05-28 AFL2123 DLM → SVO May 28, 14:30 UTCMay 28, 16:30 UTC2h 0m
2026-05-28 AFL2122 SVO → DLM May 28, 12:35 UTCMay 28, 13:00 UTC25m
2026-05-27 AFL2161 AYT → SVO May 27, 15:50 UTCMay 28, 13:00 UTC21h 10m
2026-05-27 AFL2160 SVO → AYT May 27, 13:35 UTCMay 27, 14:10 UTC35m
2026-05-26 AFL2139 IST → SVO May 26, 06:39 UTCMay 26, 06:49 UTC10m
2026-05-24 AFL1231 UFA → SVO May 24, 11:25 UTCMay 24, 12:00 UTC35m
2026-05-22 AFL439 SSH → SVO May 22, 20:25 UTCMay 23, 15:15 UTC18h 50m
2026-05-22 AFL1868 SVO → EVN May 22, 18:45 UTCMay 22, 18:55 UTC10m
2026-05-20 AFL1769 PEE → SVO May 20, 18:45 UTCMay 21, 13:10 UTC18h 25m
2026-05-20 AFL7602 - May 20, 10:50 UTCMay 20, 17:05 UTC6h 15m
2026-05-19 AFL2123 DLM → SVO May 19, 15:50 UTCMay 20, 11:05 UTC19h 16m
2026-05-19 AFL2123 DLM → SVO May 19, 14:35 UTCMay 20, 11:05 UTC20h 31m
2026-05-19 AFL2122 SVO → DLM May 19, 12:35 UTCMay 19, 12:55 UTC20m
2026-05-18 AFL1562 SVO → IKT May 18, 02:35 UTCMay 18, 08:25 UTC5h 50m
2026-05-17 AFL1562 SVO → IKT May 17, 23:20 UTCMay 17, 23:40 UTC20m
2026-05-17 AFL435 HRG → SVO May 17, 11:40 UTCMay 17, 18:35 UTC6h 55m
2026-05-16 AFL435 HRG → SVO May 16, 17:50 UTCMay 17, 17:45 UTC23h 55m
2026-05-16 AFL434 SVO → HRG May 16, 17:15 UTCMay 17, 15:45 UTC22h 30m
2026-05-16 AFL2139 IST → SVO May 16, 06:25 UTCMay 16, 06:35 UTC10m
2026-05-15 AFL1947 ALA → SVO May 15, 15:35 UTCMay 15, 16:00 UTC25m
2026-05-15 AFL1946 SVO → ALA May 15, 06:55 UTCMay 15, 07:30 UTC35m
2026-05-14 AFL1947 ALA → SVO May 14, 08:05 UTCMay 14, 17:35 UTC9h 30m
2026-05-14 AFL1946 SVO → ALA May 14, 06:55 UTCMay 14, 07:10 UTC15m
2026-05-14 AFL1995 EVN → SVO May 14, 02:10 UTCMay 14, 03:05 UTC55m
2026-05-13 AFL1994 SVO → EVN May 13, 20:55 UTCMay 13, 21:20 UTC25m
2026-05-11 AFL1491 KJA → SVO May 11, 17:50 UTCMay 11, 18:20 UTC30m
2026-05-10 AFL1605 KUF → SVO May 10, 21:10 UTCMay 10, 21:40 UTC30m
2026-05-10 AFL1563 IKT → SVO May 10, 09:55 UTCMay 10, 20:30 UTC10h 35m
2026-05-09 AFL401 CAI → SVO May 9, 15:00 UTCMay 9, 16:05 UTC1h 5m
2026-05-09 AFL1995 EVN → SVO May 9, 01:40 UTCMay 9, 02:05 UTC25m
2026-05-08 AFL7673 - May 8, 14:50 UTCMay 9, 00:10 UTC9h 20m
2026-04-24 AFL2125 AYT → SVO Apr 24, 13:05 UTCApr 24, 15:15 UTC2h 10m
2026-04-24 AFL2124 SVO → AYT Apr 24, 11:10 UTCApr 24, 11:25 UTC15m
2026-04-24 AFL1995 EVN → SVO Apr 24, 01:45 UTCApr 24, 10:20 UTC8h 35m
2026-04-23 AFL1994 SVO → EVN Apr 23, 23:50 UTCApr 24, 00:00 UTC10m
2026-04-23 AFL1994 SVO → EVN Apr 23, 21:00 UTCApr 23, 21:30 UTC30m
2026-04-23 AFL1539 TOF → SVO Apr 23, 11:35 UTCApr 23, 14:40 UTC3h 5m
2026-04-23 AFL1538 SVO → TOF Apr 23, 09:30 UTCApr 23, 09:55 UTC25m
2026-04-23 AFL1538 SVO → TOF Apr 23, 06:25 UTCApr 23, 06:35 UTC10m
2026-04-22 AFL424 SVO → HRG Apr 22, 02:15 UTCApr 22, 07:55 UTC5h 40m
2026-04-20 AFL1124 SVO → SVO Apr 20, 13:05 UTCApr 20, 13:35 UTC30m
2026-04-20 AFL1967 EVN → SVO Apr 20, 03:05 UTCApr 20, 03:30 UTC25m
2026-04-18 AFL1975 TAS → SVO Apr 18, 19:20 UTCApr 18, 19:50 UTC30m
2026-04-18 AFL1967 EVN → SVO Apr 18, 03:00 UTCApr 18, 18:30 UTC15h 30m
2026-04-17 AFL427 - Apr 17, 13:20 UTCApr 17, 15:15 UTC1h 54m
2026-04-17 AFL427 - Apr 17, 12:45 UTCApr 17, 13:15 UTC30m
2026-04-17 AFL426 SVO → SSH Apr 17, 09:20 UTCApr 17, 10:00 UTC40m
2026-04-17 AFL426 SVO → SSH Apr 17, 07:35 UTCApr 17, 09:15 UTC1h 40m

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-73127 page for operator, model, and routing details .

Mode-S 151DA7 frequently asked

What is Mode-S code 151DA7?
151DA7 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73127.
Where is Mode-S 151DA7 registered?
Mode-S code 151DA7 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DA7 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 151DA7, octal 05216647, decimal 1,383,847.
What flights does 151DA7 operate?
Mode-S 151DA7 has broadcast 20 distinct callsigns, including AFL1994, AFL1995, AFL426, AFL2124, AFL2123.