Apparatus

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sensors Mode-S transponder

151DFD

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73213 · AIRBUS A-320

Hex
151DFD
Octal
05216775
Decimal
1,383,933
Country
RU
Tail
RA-73213
Type
A320
No current signal · last broadcast 1d ago
Flights observed
181
Distinct callsigns
20
Country
RU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 151DFD.

Country allocation

The ICAO 24-bit address 151DFD 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
SDM6574 - 23 2026-07-06
SDM6963 - 17 2026-06-27
SDM6964 Rossiya - Russian Airlines 12 2026-06-27
SDM6542 Rossiya - Russian Airlines 11 2026-06-07
SDM6353 Rossiya - Russian Airlines 11 2026-06-17
SDM6438 - 10 2026-07-11
SDM6437 - 9 2026-07-11
SDM6573 - 7 2026-07-05
SDM6541 Rossiya - Russian Airlines 7 2026-05-29
SDM6559 - 6 2026-07-09
SDM6473 - 5 2026-07-13
SDM6931 Rossiya - Russian Airlines 4 2026-06-23
SDM6923 Rossiya - Russian Airlines 4 2026-05-26
SDM6564 - 4 2026-07-05
SDM6454 Rossiya - Russian Airlines 4 2026-06-10
SDM6354 - 4 2026-06-17
SDM6924 Rossiya - Russian Airlines 3 2026-05-26
SDM6859 - 3 2026-07-13
SDM6453 - 3 2026-07-10
SDM6401 - 3 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SDM6859 - Jul 13, 16:40 UTCJul 13, 17:00 UTC20m
2026-07-13 SDM6473 - Jul 13, 08:15 UTCJul 13, 08:25 UTC10m
2026-07-13 SDM6473 LED → LED Jul 13, 06:50 UTCJul 13, 07:15 UTC25m
2026-07-11 SDM6561 - Jul 11, 10:35 UTCJul 11, 11:30 UTC55m
2026-07-11 SDM6438 - Jul 11, 08:25 UTCJul 11, 08:40 UTC15m
2026-07-11 SDM6438 - Jul 11, 07:15 UTCJul 11, 07:25 UTC10m
2026-07-11 SDM6437 - Jul 11, 02:20 UTCJul 11, 02:45 UTC25m
2026-07-10 SDM6437 - Jul 10, 22:50 UTCJul 10, 23:00 UTC10m
2026-07-10 SDM6453 - Jul 10, 04:00 UTCJul 10, 04:10 UTC10m
2026-07-09 SDM6559 - Jul 9, 17:10 UTCJul 9, 17:30 UTC20m
2026-07-09 SDM6543 - Jul 9, 06:10 UTCJul 9, 06:20 UTC10m
2026-07-08 SDM6473 - Jul 8, 18:05 UTCJul 8, 18:15 UTC10m
2026-07-07 SDM6578 - Jul 7, 02:00 UTCJul 7, 08:00 UTC6h 0m
2026-07-06 SDM6577 - Jul 6, 22:25 UTCJul 6, 22:35 UTC10m
2026-07-06 SDM6574 - Jul 6, 05:20 UTCJul 6, 05:30 UTC10m
2026-07-05 SDM6574 - Jul 5, 19:25 UTCJul 6, 03:10 UTC7h 45m
2026-07-05 SDM6573 - Jul 5, 17:45 UTCJul 5, 18:00 UTC15m
2026-07-05 SDM6564 - Jul 5, 14:20 UTCJul 5, 14:30 UTC10m
2026-07-05 SDM6564 - Jul 5, 11:20 UTCJul 5, 11:35 UTC15m
2026-07-05 SDM6563 - Jul 5, 05:35 UTCJul 5, 07:10 UTC1h 35m
2026-07-04 SDM6893 - Jul 4, 14:50 UTCJul 4, 15:15 UTC25m
2026-07-03 SDM6474 OMS → LED Jul 3, 14:40 UTCJul 3, 15:00 UTC20m
2026-07-03 SDM6473 - Jul 3, 07:45 UTCJul 3, 08:15 UTC30m
2026-07-03 SDM6473 - Jul 3, 07:00 UTCJul 3, 07:10 UTC10m
2026-07-03 SDM6402 - Jul 3, 03:55 UTCJul 3, 04:05 UTC10m
2026-07-02 SDM6401 - Jul 2, 21:40 UTCJul 2, 21:55 UTC15m
2026-07-01 SDM6471 - Jul 1, 20:25 UTCJul 1, 20:40 UTC15m
2026-07-01 SDM6559 LED → LED Jul 1, 09:20 UTCJul 1, 10:30 UTC1h 10m
2026-06-30 SDM6474 OMS → LED Jun 30, 14:50 UTCJun 30, 15:00 UTC10m
2026-06-30 SDM6442 - Jun 30, 00:49 UTCJun 30, 13:55 UTC13h 6m
2026-06-29 SDM6441 - Jun 29, 19:49 UTCJun 29, 20:04 UTC15m
2026-06-28 SDM6569 LED → LED Jun 28, 08:59 UTCJun 28, 09:25 UTC25m
2026-06-27 SDM6964 IST → LED Jun 27, 14:09 UTCJun 28, 06:20 UTC16h 10m
2026-06-27 SDM6963 - Jun 27, 11:55 UTCJun 27, 12:09 UTC15m
2026-06-26 SDM6574 - Jun 26, 18:44 UTCJun 27, 03:04 UTC8h 20m
2026-06-26 SDM6574 - Jun 26, 01:29 UTCJun 26, 21:39 UTC20h 10m
2026-06-25 SDM6574 - Jun 25, 21:20 UTCJun 26, 21:15 UTC23h 55m
2026-06-25 SDM6574 - Jun 25, 20:59 UTCJun 26, 18:54 UTC21h 55m
2026-06-25 SDM6574 - Jun 25, 18:15 UTCJun 26, 02:50 UTC8h 35m
2026-06-25 SDM6574 - Jun 25, 03:20 UTCJun 26, 02:50 UTC23h 30m
2026-06-25 SDM6573 - Jun 25, 02:54 UTCJun 25, 21:15 UTC18h 20m
2026-06-23 SDM6931 LED → GDZ Jun 23, 09:40 UTCJun 23, 10:44 UTC1h 5m
2026-06-23 SDM6438 RGK → LED Jun 23, 01:25 UTCJun 23, 06:55 UTC5h 30m
2026-06-22 SDM6563 - Jun 22, 05:29 UTCJun 22, 05:49 UTC20m
2026-06-21 SDM6559 - Jun 21, 09:15 UTCJun 21, 09:35 UTC20m
2026-06-20 SDM6437 LED → RGK Jun 20, 21:19 UTCJun 20, 21:40 UTC20m
2026-06-20 SDM6964 IST → LED Jun 20, 14:24 UTCJun 20, 14:54 UTC30m
2026-06-20 SDM6963 - Jun 20, 12:04 UTCJun 20, 12:30 UTC25m
2026-06-20 SDM6963 - Jun 20, 07:24 UTCJun 20, 07:49 UTC25m
2026-06-19 SDM6315 - Jun 19, 09:49 UTCJun 19, 10:14 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-73213 page for operator, model, and routing details .

Mode-S 151DFD frequently asked

What is Mode-S code 151DFD?
151DFD is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73213.
Where is Mode-S 151DFD registered?
Mode-S code 151DFD is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DFD broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DFD, octal 05216775, decimal 1,383,933.
What flights does 151DFD operate?
Mode-S 151DFD has broadcast 20 distinct callsigns, including SDM6574, SDM6963, SDM6964, SDM6542, SDM6353.