Apparatus

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sensors Mode-S transponder

155BD1

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-89041 · SUKHOI Superjet 100-95

Hex
155BD1
Octal
05255721
Decimal
1,399,761
Country
RU
Tail
RA-89041
Type
SU95
No current signal · last broadcast Jul 15, 05:20 UTC
Flights observed
53
Distinct callsigns
20
Country
RU
Last broadcast
Jul 15, 05:20 UTC

Last known position

Most recent position reported by Mode-S 155BD1.

Country allocation

The ICAO 24-bit address 155BD1 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
SDM6407 Rossiya - Russian Airlines 3 2026-05-25
SDM6490 Rossiya - Russian Airlines 2 2026-06-06
SDM6299 Rossiya - Russian Airlines 2 2026-05-14
SDM6097 Rossiya - Russian Airlines 2 2026-06-19
SDM6811 - 1 2026-07-15
SDM6703 Rossiya - Russian Airlines 1 2026-06-11
SDM6592 - 1 2026-07-05
SDM6591 - 1 2026-07-05
SDM6588 Rossiya - Russian Airlines 1 2026-06-13
SDM6587 Rossiya - Russian Airlines 1 2026-06-12
SDM6545 Rossiya - Russian Airlines 1 2026-06-04
SDM6535 Rossiya - Russian Airlines 1 2026-05-26
SDM6519 Rossiya - Russian Airlines 1 2026-05-12
SDM6515 Rossiya - Russian Airlines 1 2026-06-01
SDM6489 Rossiya - Russian Airlines 1 2026-05-28
SDM6433 Rossiya - Russian Airlines 1 2026-06-09
SDM6406 Rossiya - Russian Airlines 1 2026-04-20
SDM6388 Rossiya - Russian Airlines 1 2026-05-23
SDM6387 Rossiya - Russian Airlines 1 2026-05-30
SDM6361 Rossiya - Russian Airlines 1 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SDM6811 - Jul 15, 05:05 UTCJul 15, 05:20 UTC15m
2026-07-11 SDM6007 - Jul 11, 08:05 UTCJul 11, 08:15 UTC10m
2026-07-08 SDM6031 - Jul 8, 12:25 UTCJul 8, 12:40 UTC15m
2026-07-05 SDM6592 - Jul 5, 04:35 UTCJul 5, 04:50 UTC15m
2026-07-05 SDM6591 - Jul 5, 00:10 UTCJul 5, 00:30 UTC20m
2026-06-27 SDM6025 - Jun 27, 09:55 UTCJun 27, 10:10 UTC15m
2026-06-25 SDM6004 - Jun 25, 07:45 UTCJun 25, 08:45 UTC1h 0m
2026-06-24 SDM6249 - Jun 24, 13:05 UTCJun 24, 13:24 UTC20m
2026-06-22 SDM6235 - Jun 22, 18:09 UTCJun 22, 18:35 UTC25m
2026-06-21 SDM6064 GSV → SVO Jun 21, 13:34 UTCJun 21, 14:10 UTC35m
2026-06-19 SDM6097 SVO → LED Jun 19, 19:04 UTCJun 19, 19:14 UTC10m
2026-06-17 SDM6176 - Jun 17, 15:46 UTCJun 17, 16:40 UTC55m
2026-06-17 SDM6020 VKO → LED Jun 17, 06:05 UTCJun 17, 07:05 UTC1h 0m
2026-06-16 SD6051 - Jun 16, 10:20 UTCJun 16, 10:45 UTC25m
2026-06-15 SDM6006 - Jun 15, 08:54 UTCJun 15, 09:54 UTC1h 0m
2026-06-14 SDM6052 VKO → LED Jun 14, 06:45 UTCJun 14, 07:05 UTC20m
2026-06-13 SDM6588 SCW → LED Jun 13, 02:30 UTCJun 13, 03:10 UTC40m
2026-06-12 SDM6587 LED → SCW Jun 12, 23:00 UTCJun 12, 23:10 UTC10m
2026-06-11 SDM6703 SVO → LED Jun 11, 18:40 UTCJun 11, 19:35 UTC55m
2026-06-10 SDM6077 SVO → KUF Jun 10, 15:50 UTCJun 10, 16:10 UTC20m
2026-06-09 SDM6433 SVO → ASF Jun 9, 05:15 UTCJun 9, 05:50 UTC35m
2026-06-08 SDM6227 - Jun 8, 12:05 UTCJun 8, 12:20 UTC15m
2026-06-06 SDM6490 GSV → SVO Jun 6, 20:49 UTCJun 6, 21:15 UTC25m
2026-06-04 SDM6545 SVO → PEZ Jun 4, 15:40 UTCJun 4, 16:10 UTC30m
2026-06-04 SDM6197 SVO → KZN Jun 4, 08:35 UTCJun 4, 08:50 UTC15m
2026-06-01 SDM6515 SVO → LED Jun 1, 13:45 UTCJun 1, 14:40 UTC55m
2026-05-31 SDM6093 SVO → LED May 31, 16:55 UTCMay 31, 17:50 UTC55m
2026-05-30 SDM6387 SVO → SCW May 30, 11:35 UTCMay 30, 11:50 UTC15m
2026-05-29 SDM6349 SVO → GOJ May 29, 18:15 UTCMay 29, 18:45 UTC30m
2026-05-28 SDM6490 GSV → SVO May 28, 19:10 UTCMay 28, 19:30 UTC20m
2026-05-28 SDM6489 SVO → GSV May 28, 16:50 UTCMay 28, 17:20 UTC30m
2026-05-28 SDM6361 SVO → KZN May 28, 11:15 UTCMay 28, 11:40 UTC25m
2026-05-28 SDM6061 SVO → KUF May 28, 03:40 UTCMay 28, 04:10 UTC30m
2026-05-27 SDM6168 LED → SVO May 27, 08:45 UTCMay 27, 10:20 UTC1h 35m
2026-05-26 SDM6535 SVO → UFA May 26, 09:40 UTCMay 26, 09:59 UTC20m
2026-05-25 SDM6407 SVO → SCW May 25, 14:50 UTCMay 25, 15:15 UTC25m
2026-05-25 SDM6244 LED → SVO May 25, 11:35 UTCMay 25, 12:35 UTC1h 0m
2026-05-24 SDM6085 SVO → LED May 24, 14:40 UTCMay 24, 15:45 UTC1h 5m
2026-05-23 SDM6097 SVO → LED May 23, 18:00 UTCMay 23, 18:55 UTC55m
2026-05-23 SDM6388 SCW → SVO May 23, 14:30 UTCMay 23, 15:05 UTC35m
2026-05-18 SDM6241 SVO → KZN May 18, 17:25 UTCMay 18, 17:45 UTC20m
2026-05-14 SDM6254 - May 14, 12:15 UTCMay 14, 12:30 UTC15m
2026-05-14 SDM6299 SVO → NBC May 14, 03:15 UTCMay 14, 03:30 UTC15m
2026-05-12 SDM6519 SVO → LED May 12, 15:15 UTCMay 12, 15:25 UTC10m
2026-05-12 SDM6299 SVO → NBC May 12, 03:05 UTCMay 12, 03:35 UTC30m
2026-04-25 SDM6075 SVO → ULV Apr 25, 05:20 UTCApr 25, 05:50 UTC30m
2026-04-24 SDM6073 SVO → PEE Apr 24, 16:45 UTCApr 24, 17:10 UTC25m
2026-04-23 SDM6057 SVO → LED Apr 23, 07:40 UTCApr 23, 08:40 UTC1h 0m
2026-04-22 SDM6407 SVO → SCW Apr 22, 14:35 UTCApr 22, 14:55 UTC20m
2026-04-20 SDM6406 SCW → SVO Apr 20, 06:35 UTCApr 20, 07:05 UTC30m

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-89041 page for operator, model, and routing details .

Mode-S 155BD1 frequently asked

What is Mode-S code 155BD1?
155BD1 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-89041.
Where is Mode-S 155BD1 registered?
Mode-S code 155BD1 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 155BD1 broadcasting right now?
No active broadcast right now. Last signal was Jul 15, 05:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 155BD1, octal 05255721, decimal 1,399,761.
What flights does 155BD1 operate?
Mode-S 155BD1 has broadcast 20 distinct callsigns, including SDM6407, SDM6490, SDM6299, SDM6097, SDM6811.