Apparatus

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sensors Mode-S transponder

155C28

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-89128 · SUKHOI Superjet 100-95

Hex
155C28
Octal
05256050
Decimal
1,399,848
Country
RU
Tail
RA-89128
Type
SU95
No current signal · last broadcast 6d ago
Flights observed
62
Distinct callsigns
20
Country
RU
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 155C28.

Country allocation

The ICAO 24-bit address 155C28 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
SDM6519 Rossiya - Russian Airlines 3 2026-06-07
SDM6059 Rossiya - Russian Airlines 3 2026-05-26
SDM6827 - 2 2026-07-01
SDM6588 - 2 2026-07-08
SDM6415 Rossiya - Russian Airlines 2 2026-07-02
SDM6406 - 2 2026-06-26
SDM6405 - 2 2026-06-25
SDM6243 Rossiya - Russian Airlines 2 2026-05-28
SDM6235 - 2 2026-07-02
SDM6227 Rossiya - Russian Airlines 2 2026-06-09
SDM6179 Rossiya - Russian Airlines 2 2026-06-17
SDM6073 Rossiya - Russian Airlines 2 2026-05-28
SDM6060 Rossiya - Russian Airlines 2 2026-05-26
SDM6811 - 1 2026-07-01
SDM6705 Rossiya - Russian Airlines 1 2026-06-10
SDM6703 Rossiya - Russian Airlines 1 2026-06-04
SDM6579 Rossiya - Russian Airlines 1 2026-06-24
SDM6503 Rossiya - Russian Airlines 1 2026-06-09
SDM6497 Rossiya - Russian Airlines 1 2026-05-06
SDM6492 Rossiya - Russian Airlines 1 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SDM6326 - Jul 15, 18:35 UTCJul 15, 19:45 UTC1h 10m
2026-07-15 SDM6325 - Jul 15, 16:15 UTCJul 15, 16:55 UTC40m
2026-07-08 SDM6588 - Jul 8, 02:30 UTCJul 8, 03:10 UTC40m
2026-07-03 SDM6408 - Jul 3, 17:45 UTCJul 3, 18:20 UTC35m
2026-07-02 SDM6235 - Jul 2, 18:25 UTCJul 2, 18:50 UTC25m
2026-07-02 SDM6338 - Jul 2, 14:45 UTCJul 2, 15:25 UTC40m
2026-07-02 SDM6415 SVO → VOG Jul 2, 06:15 UTCJul 2, 06:41 UTC26m
2026-07-01 SDM6827 SVO → SVO Jul 1, 18:10 UTCJul 1, 18:25 UTC15m
2026-07-01 SDM6811 - Jul 1, 05:00 UTCJul 1, 05:15 UTC15m
2026-06-27 SDM6235 - Jun 27, 17:39 UTCJun 27, 17:49 UTC10m
2026-06-26 SDM6406 - Jun 26, 06:29 UTCJun 26, 07:05 UTC35m
2026-06-25 SDM6406 - Jun 25, 06:40 UTCJun 25, 07:15 UTC35m
2026-06-25 SDM6405 - Jun 25, 03:40 UTCJun 25, 04:04 UTC25m
2026-06-24 SDM6579 SVO → LED Jun 24, 16:14 UTCJun 24, 17:20 UTC1h 5m
2026-06-22 SDM6588 - Jun 22, 02:30 UTCJun 22, 03:19 UTC50m
2026-06-19 SDM6005 LED → VKO Jun 19, 06:24 UTCJun 19, 08:09 UTC1h 45m
2026-06-17 SDM6179 LED → VKO Jun 17, 15:55 UTCJun 17, 16:05 UTC10m
2026-06-17 SDM6162 - Jun 17, 04:50 UTCJun 17, 05:20 UTC30m
2026-06-15 SDM6020 VKO → LED Jun 15, 05:50 UTCJun 15, 06:55 UTC1h 5m
2026-06-13 SDM6175 LED → VKO Jun 13, 13:15 UTCJun 13, 13:35 UTC20m
2026-06-12 SDM6415 SVO → VOG Jun 12, 07:00 UTCJun 12, 07:25 UTC25m
2026-06-10 SDM6705 SVO → GVA Jun 10, 18:20 UTCJun 10, 19:30 UTC1h 10m
2026-06-09 SDM6227 SVO → KUF Jun 9, 12:55 UTCJun 9, 13:15 UTC20m
2026-06-09 SDM6503 SVO → ARH Jun 9, 05:45 UTCJun 9, 06:10 UTC25m
2026-06-07 SDM6207 SVO → SVX Jun 7, 21:05 UTCJun 7, 21:25 UTC20m
2026-06-07 SDM6519 SVO → LED Jun 7, 15:10 UTCJun 7, 16:10 UTC1h 0m
2026-06-07 SDM6055 SVO → LED Jun 7, 09:40 UTCJun 7, 10:40 UTC1h 0m
2026-06-07 SDM6492 GSV → SVO Jun 7, 06:45 UTCJun 7, 07:05 UTC20m
2026-06-06 SDM6084 LED → SVO Jun 6, 15:44 UTCJun 6, 16:10 UTC25m
2026-06-04 SDM6703 SVO → LED Jun 4, 17:15 UTCJun 4, 18:20 UTC1h 5m
2026-06-02 SDM6227 - Jun 2, 12:00 UTCJun 2, 12:25 UTC25m
2026-06-01 SDM6089 SVO → LED Jun 1, 15:45 UTCJun 1, 16:45 UTC1h 0m
2026-05-31 SDM6361 SVO → KZN May 31, 11:25 UTCMay 31, 11:45 UTC20m
2026-05-30 SDM6097 SVO → LED May 30, 17:50 UTCMay 30, 18:15 UTC25m
2026-05-28 SDM6073 SVO → PEE May 28, 15:55 UTCMay 28, 16:15 UTC20m
2026-05-28 SDM6243 SVO → LED May 28, 09:10 UTCMay 28, 10:10 UTC1h 0m
2026-05-28 SDM6351 SVO → GOJ May 28, 04:40 UTCMay 28, 05:05 UTC25m
2026-05-26 SDM6060 LED → SVO May 26, 10:50 UTCMay 26, 11:44 UTC55m
2026-05-26 SDM6059 SVO → LED May 26, 08:10 UTCMay 26, 09:19 UTC1h 10m
2026-05-22 SDM6181 LED → VKO May 22, 16:15 UTCMay 22, 17:40 UTC1h 25m
2026-05-14 SDM6405 SVO → SCW May 14, 03:30 UTCMay 14, 03:45 UTC15m
2026-05-11 SDM6059 SVO → LED May 11, 08:15 UTCMay 11, 09:15 UTC1h 0m
2026-05-09 SDM6059 SVO → LED May 9, 08:05 UTCMay 9, 09:15 UTC1h 10m
2026-05-06 SDM6497 SVO → LED May 6, 13:20 UTCMay 6, 14:20 UTC1h 0m
2026-04-29 SDM6244 LED → SVO Apr 29, 11:40 UTCApr 29, 12:45 UTC1h 5m
2026-04-29 SDM6243 SVO → LED Apr 29, 09:30 UTCApr 29, 10:20 UTC50m
2026-04-29 SDM6040 LED → SVO Apr 29, 06:39 UTCApr 29, 07:40 UTC1h 0m
2026-04-29 SDM6039 SVO → LED Apr 29, 04:29 UTCApr 29, 05:25 UTC55m
2026-04-28 SDM6073 SVO → PEE Apr 28, 15:55 UTCApr 28, 16:20 UTC25m
2026-04-28 SDM6374 PEZ → SVO Apr 28, 10:45 UTCApr 28, 10:55 UTC10m

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-89128 page for operator, model, and routing details .

Mode-S 155C28 frequently asked

What is Mode-S code 155C28?
155C28 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-89128.
Where is Mode-S 155C28 registered?
Mode-S code 155C28 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 155C28 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 155C28, octal 05256050, decimal 1,399,848.
What flights does 155C28 operate?
Mode-S 155C28 has broadcast 20 distinct callsigns, including SDM6519, SDM6059, SDM6827, SDM6588, SDM6415.