Apparatus

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sensors Mode-S transponder

151DF1

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73201 · AIRBUS A-319

Hex
151DF1
Octal
05216761
Decimal
1,383,921
Country
RU
Tail
RA-73201
Type
A319
No current signal · last broadcast 2d ago
Flights observed
80
Distinct callsigns
20
Country
RU
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 151DF1.

Country allocation

The ICAO 24-bit address 151DF1 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
SDM6924 Rossiya - Russian Airlines 6 2026-05-06
SDM6923 Rossiya - Russian Airlines 6 2026-05-08
SDM6112 Rossiya - Russian Airlines 6 2026-04-27
SDM6532 Rossiya - Russian Airlines 5 2026-05-20
SDM6926 Rossiya - Russian Airlines 4 2026-05-13
SDM6570 Rossiya - Russian Airlines 4 2026-05-22
SDM6571 Rossiya - Russian Airlines 3 2026-05-24
SDM6476 Rossiya - Russian Airlines 3 2026-05-09
SDM6472 Rossiya - Russian Airlines 3 2026-05-22
SDM6442 Rossiya - Russian Airlines 3 2026-05-13
SDM6403 Rossiya - Russian Airlines 3 2026-05-21
SDM6331 Rossiya - Russian Airlines 3 2026-05-05
SDM6572 - 2 2026-04-17
SDM6565 - 2 2026-04-15
SDM6534 Rossiya - Russian Airlines 2 2026-05-23
SDM6357 Rossiya - Russian Airlines 2 2026-04-30
SDM6332 Rossiya - Russian Airlines 2 2026-05-02
SDM6324 - 2 2026-04-14
SDM6116 Rossiya - Russian Airlines 2 2026-04-24
SDM6973 Rossiya - Russian Airlines 1 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 SDM6622 PKX → KJA May 27, 19:45 UTCMay 27, 20:10 UTC25m
2026-05-27 SDM6621 KJA → PKX May 27, 17:40 UTCMay 27, 17:50 UTC10m
2026-05-24 SDM6571 LED → KJA May 24, 09:15 UTCMay 24, 12:00 UTC2h 45m
2026-05-23 SDM6534 ALA → LED May 23, 14:35 UTCMay 24, 12:00 UTC21h 25m
2026-05-23 SDM6534 ALA → LED May 23, 13:45 UTCMay 24, 12:00 UTC22h 15m
2026-05-22 SDM6472 OMS → LED May 22, 21:20 UTCMay 23, 02:05 UTC4h 45m
2026-05-22 SDM6570 AER → LED May 22, 13:40 UTCMay 22, 17:10 UTC3h 30m
2026-05-21 SDM6570 AER → LED May 21, 20:20 UTCMay 22, 17:10 UTC20h 50m
2026-05-21 SDM6570 AER → LED May 21, 19:15 UTCMay 22, 17:10 UTC21h 55m
2026-05-21 SDM6403 LED → SVX May 21, 17:35 UTCMay 21, 17:55 UTC20m
2026-05-20 SDM6450 TJM → LED May 20, 18:05 UTCMay 21, 10:20 UTC16h 15m
2026-05-20 SDM6532 ALA → LED May 20, 07:50 UTCMay 20, 16:45 UTC8h 55m
2026-05-18 SDM6472 OMS → LED May 18, 21:50 UTCMay 19, 03:30 UTC5h 40m
2026-05-17 SDM6418 SVX → LED May 17, 14:10 UTCMay 17, 15:25 UTC1h 15m
2026-05-16 SDM6570 AER → LED May 16, 16:40 UTCMay 17, 12:05 UTC19h 25m
2026-05-16 SDM6569 LED → AER May 16, 10:46 UTCMay 16, 11:16 UTC30m
2026-05-16 SDM6402 SVX → LED May 16, 01:50 UTCMay 16, 02:35 UTC45m
2026-05-14 SDM6403 LED → SVX May 14, 10:05 UTCMay 14, 17:00 UTC6h 55m
2026-05-13 SDM6926 EVN → LED May 13, 18:30 UTCMay 13, 19:40 UTC1h 10m
2026-05-13 SDM6442 SGC → LED May 13, 01:05 UTCMay 13, 10:10 UTC9h 5m
2026-05-11 SDM6562 AER → LED May 11, 16:20 UTCMay 11, 17:00 UTC41m
2026-05-10 SDM6926 EVN → LED May 10, 18:05 UTCMay 11, 11:50 UTC17h 45m
2026-05-10 SDM6532 ALA → LED May 10, 06:10 UTCMay 10, 14:14 UTC8h 5m
2026-05-09 SDM6532 ALA → LED May 9, 17:30 UTCMay 10, 14:14 UTC20h 45m
2026-05-09 SDM6532 ALA → LED May 9, 12:55 UTCMay 10, 08:15 UTC19h 20m
2026-05-09 SDM6973 LED → GYD May 9, 06:20 UTCMay 10, 06:15 UTC23h 55m
2026-05-09 SDM6476 KJA → LED May 9, 02:50 UTCMay 9, 18:05 UTC15h 15m
2026-05-08 SDM6476 KJA → LED May 8, 16:55 UTCMay 9, 13:30 UTC20h 35m
2026-05-08 SDM6476 KJA → LED May 8, 14:55 UTCMay 9, 13:30 UTC22h 35m
2026-05-08 SDM6923 LED → EVN May 8, 12:44 UTCMay 8, 12:55 UTC10m
2026-05-07 SDM6442 SGC → LED May 7, 20:55 UTCMay 8, 10:44 UTC13h 50m
2026-05-06 SDM6924 EVN → EVN May 6, 12:01 UTCMay 6, 12:25 UTC25m
2026-05-06 SDM6923 LED → EVN May 6, 07:35 UTCMay 6, 08:05 UTC30m
2026-05-05 SDM6331 LED → KGD May 5, 17:50 UTCMay 5, 18:45 UTC55m
2026-05-04 SDM6331 LED → KGD May 4, 23:30 UTCMay 5, 18:45 UTC19h 15m
2026-05-04 SDM6924 EVN → EVN May 4, 12:15 UTCMay 4, 12:45 UTC30m
2026-05-03 SDM6926 EVN → LED May 3, 19:40 UTCMay 4, 10:30 UTC14h 50m
2026-05-03 SDM6925 LED → EVN May 3, 17:45 UTCMay 3, 18:05 UTC20m
2026-05-03 SDM6595 LED → KZN May 3, 07:50 UTCMay 3, 08:25 UTC35m
2026-05-02 SDM6332 KGD → LED May 2, 21:20 UTCMay 2, 22:20 UTC1h 0m
2026-05-02 SDM6331 LED → KGD May 2, 18:30 UTCMay 2, 19:20 UTC50m
2026-05-01 SDM6599 LED → LED May 1, 16:20 UTCMay 1, 16:45 UTC25m
2026-04-30 SDM6357 LED → MRV Apr 30, 11:40 UTCApr 30, 12:50 UTC1h 10m
2026-04-30 SDM6532 ALA → LED Apr 30, 00:45 UTCApr 30, 07:55 UTC7h 10m
2026-04-28 SDM6924 EVN → EVN Apr 28, 12:15 UTCApr 28, 15:40 UTC3h 25m
2026-04-27 SDM6461 LED → CEK Apr 27, 23:20 UTCApr 28, 08:20 UTC9h 0m
2026-04-27 SDM6357 LED → MRV Apr 27, 12:30 UTCApr 28, 08:20 UTC19h 50m
2026-04-27 SDM6112 NJC → LED Apr 27, 04:20 UTCApr 27, 23:45 UTC19h 25m
2026-04-27 SDM6112 NJC → LED Apr 27, 04:10 UTCApr 27, 23:45 UTC19h 35m
2026-04-27 SDM6112 NJC → LED Apr 27, 00:35 UTCApr 27, 23:45 UTC23h 10m

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-73201 page for operator, model, and routing details .

Mode-S 151DF1 frequently asked

What is Mode-S code 151DF1?
151DF1 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73201.
Where is Mode-S 151DF1 registered?
Mode-S code 151DF1 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DF1 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DF1, octal 05216761, decimal 1,383,921.
What flights does 151DF1 operate?
Mode-S 151DF1 has broadcast 20 distinct callsigns, including SDM6924, SDM6923, SDM6112, SDM6532, SDM6926.