Apparatus

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sensors Mode-S transponder

151DFF

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73215 · AIRBUS A-319

Hex
151DFF
Octal
05216777
Decimal
1,383,935
Country
RU
Tail
RA-73215
Type
A319
No current signal · last broadcast 1h ago
Flights observed
47
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 151DFF.

Country allocation

The ICAO 24-bit address 151DFF 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
SDM6454 Rossiya - Russian Airlines 4 2026-05-27
SDM6463 Rossiya - Russian Airlines 3 2026-05-20
SDM6582 Rossiya - Russian Airlines 2 2026-05-27
SDM6572 Rossiya - Russian Airlines 2 2026-05-22
SDM6569 Rossiya - Russian Airlines 2 2026-05-25
SDM6472 Rossiya - Russian Airlines 2 2026-05-21
SDM6471 Rossiya - Russian Airlines 2 2026-05-14
SDM6418 Rossiya - Russian Airlines 2 2026-05-23
SDM6402 Rossiya - Russian Airlines 2 2026-05-28
SDM6321 Rossiya - Russian Airlines 2 2026-05-17
SDM6315 Rossiya - Russian Airlines 2 2026-05-28
SDM7002 - 1 2026-05-06
SDM6861 Rossiya - Russian Airlines 1 2026-05-30
SDM6581 Rossiya - Russian Airlines 1 2026-05-07
SDM6571 Rossiya - Russian Airlines 1 2026-05-22
SDM6559 Rossiya - Russian Airlines 1 2026-05-16
SDM6476 Rossiya - Russian Airlines 1 2026-05-22
SDM6464 Rossiya - Russian Airlines 1 2026-05-15
SDM6450 Rossiya - Russian Airlines 1 2026-05-08
SDM6449 Rossiya - Russian Airlines 1 2026-05-12

Recent flights last 47

DateFlightRouteTakeoffLandingDuration
2026-05-30 SDM6861 LED → MRV May 30, 05:20 UTCMay 30, 19:45 UTC14h 25m
2026-05-29 SDM6332 KGD → LED May 29, 20:30 UTCMay 29, 21:45 UTC1h 15m
2026-05-29 SDM6331 LED → KGD May 29, 17:40 UTCMay 29, 18:40 UTC1h 0m
2026-05-28 SDM6402 SVX → LED May 28, 23:30 UTCMay 29, 02:25 UTC2h 55m
2026-05-28 SDM6401 LED → SVX May 28, 21:40 UTCMay 28, 22:00 UTC20m
2026-05-28 SDM6315 LED → KRR May 28, 12:35 UTCMay 28, 13:05 UTC30m
2026-05-28 SDM6315 LED → KRR May 28, 09:10 UTCMay 28, 10:20 UTC1h 10m
2026-05-27 SDM6582 PEE → LED May 27, 20:30 UTCMay 28, 02:00 UTC5h 30m
2026-05-27 SDM6454 REN → LED May 27, 02:39 UTCMay 28, 01:45 UTC23h 6m
2026-05-27 SDM6454 REN → LED May 27, 00:00 UTCMay 27, 20:45 UTC20h 46m
2026-05-25 SDM6441 LED → SGC May 25, 19:54 UTCMay 25, 20:15 UTC20m
2026-05-25 SDM6569 LED → AER May 25, 07:50 UTCMay 25, 09:00 UTC1h 10m
2026-05-25 SDM6454 REN → LED May 25, 02:35 UTCMay 25, 03:10 UTC35m
2026-05-24 SDM6120 VOG → LED May 24, 19:10 UTCMay 24, 19:20 UTC10m
2026-05-24 SDM6115 LED → VOG May 24, 13:30 UTCMay 24, 14:55 UTC1h 25m
2026-05-24 SDM6454 REN → LED May 24, 04:05 UTCMay 24, 04:15 UTC10m
2026-05-23 SDM6418 SVX → LED May 23, 16:25 UTCMay 23, 16:40 UTC15m
2026-05-23 SDM6418 SVX → LED May 23, 14:35 UTCMay 23, 15:10 UTC35m
2026-05-22 SDM6476 KJA → LED May 22, 22:40 UTCMay 23, 08:00 UTC9h 20m
2026-05-22 SDM6572 KJA → LED May 22, 19:00 UTCMay 22, 19:15 UTC15m
2026-05-22 SDM6572 KJA → LED May 22, 11:40 UTCMay 22, 18:20 UTC6h 40m
2026-05-22 SDM6571 LED → KJA May 22, 08:10 UTCMay 22, 08:30 UTC20m
2026-05-21 SDM6472 OMS → LED May 21, 07:50 UTCMay 22, 03:45 UTC19h 55m
2026-05-21 SDM6472 OMS → LED May 21, 07:25 UTCMay 22, 03:45 UTC20h 20m
2026-05-20 SDM6403 LED → SVX May 20, 07:50 UTCMay 20, 17:10 UTC9h 20m
2026-05-20 SDM6463 LED → CEK May 20, 06:05 UTCMay 20, 06:25 UTC20m
2026-05-18 SDM6569 LED → AER May 18, 13:15 UTCMay 18, 14:00 UTC45m
2026-05-17 SDM6322 KGD → LED May 17, 11:15 UTCMay 17, 12:30 UTC1h 15m
2026-05-17 SDM6321 LED → KGD May 17, 08:55 UTCMay 17, 09:45 UTC50m
2026-05-16 SDM6559 LED → AER May 16, 10:40 UTCMay 16, 11:05 UTC25m
2026-05-15 SDM6464 CEK → LED May 15, 10:25 UTCMay 15, 17:15 UTC6h 49m
2026-05-14 SDM6471 LED → OMS May 14, 20:30 UTCMay 15, 02:00 UTC5h 30m
2026-05-14 SDM6471 LED → OMS May 14, 06:50 UTCMay 15, 02:00 UTC19h 10m
2026-05-13 SDM6463 LED → CEK May 13, 06:55 UTCMay 13, 17:10 UTC10h 15m
2026-05-12 SDM6463 LED → CEK May 12, 10:10 UTCMay 13, 07:50 UTC21h 40m
2026-05-12 SDM6449 LED → TJM May 12, 04:45 UTCMay 12, 10:30 UTC5h 45m
2026-05-10 SDM6112 NJC → LED May 10, 23:50 UTCMay 11, 05:45 UTC5h 55m
2026-05-10 SDM6326 KGD → LED May 10, 18:39 UTCMay 10, 19:40 UTC1h 0m
2026-05-10 SDM6325 LED → KGD May 10, 15:35 UTCMay 10, 17:05 UTC1h 30m
2026-05-10 SDM6321 LED → KGD May 10, 08:15 UTCMay 10, 09:45 UTC1h 30m
2026-05-09 SDM6359 LED → MRV May 9, 13:55 UTCMay 9, 17:05 UTC3h 10m
2026-05-08 SDM6582 PEE → LED May 8, 20:20 UTCMay 9, 11:25 UTC15h 5m
2026-05-08 SDM6450 TJM → LED May 8, 11:25 UTCMay 8, 11:40 UTC15m
2026-05-07 SDM6581 LED → PEE May 7, 21:05 UTCMay 7, 21:20 UTC15m
2026-05-06 SDM7002 GSV → GSV May 6, 09:40 UTCMay 6, 10:15 UTC35m
2026-05-05 SDM6353 LED → MRV May 5, 09:00 UTCMay 5, 09:30 UTC30m
2026-04-13 SDM6402 SVX → LED Apr 13, 02:00 UTCApr 13, 02:40 UTC40m

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-73215 page for operator, model, and routing details .

Mode-S 151DFF frequently asked

What is Mode-S code 151DFF?
151DFF is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73215.
Where is Mode-S 151DFF registered?
Mode-S code 151DFF is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DFF 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 151DFF, octal 05216777, decimal 1,383,935.
What flights does 151DFF operate?
Mode-S 151DFF has broadcast 20 distinct callsigns, including SDM6454, SDM6463, SDM6582, SDM6572, SDM6569.