Apparatus

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sensors Mode-S transponder

155C52

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-89170 · SUKHOI Superjet 100-95

Hex
155C52
Octal
05256122
Decimal
1,399,890
Country
RU
Tail
RA-89170
Type
SU95
No current signal · last broadcast 21h ago
Flights observed
71
Distinct callsigns
20
Country
RU
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 155C52.

Country allocation

The ICAO 24-bit address 155C52 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
SDM6796 Rossiya - Russian Airlines 7 2026-06-06
SDM6321 - 7 2026-07-13
SDM6846 Rossiya - Russian Airlines 5 2026-06-05
SDM6821 Rossiya - Russian Airlines 4 2026-06-07
SDM6323 - 4 2026-07-08
SDM6322 - 4 2026-07-13
SDM6795 Rossiya - Russian Airlines 3 2026-06-06
SDM6842 Rossiya - Russian Airlines 2 2026-05-21
SDM6799 Rossiya - Russian Airlines 2 2026-06-09
SDM6791 Rossiya - Russian Airlines 2 2026-05-31
SDM6452 Rossiya - Russian Airlines 2 2026-06-26
SDM6346 - 2 2026-07-04
SDM6340 - 2 2026-07-05
SDM6329 Rossiya - Russian Airlines 2 2026-05-08
SDM6324 - 2 2026-07-08
SPB6814 - 1 2026-05-11
SDM7004 - 1 2026-06-30
SDM6949 Rossiya - Russian Airlines 1 2026-05-06
SDM6914 Rossiya - Russian Airlines 1 2026-06-01
SDM6845 Rossiya - Russian Airlines 1 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SDM6322 - Jul 13, 11:25 UTCJul 13, 12:30 UTC1h 5m
2026-07-13 SDM6321 - Jul 13, 08:50 UTCJul 13, 09:40 UTC50m
2026-07-10 SDM6305 - Jul 10, 09:20 UTCJul 10, 09:25 UTC5m
2026-07-08 SDM6324 - Jul 8, 21:25 UTCJul 8, 22:15 UTC50m
2026-07-08 SDM6323 - Jul 8, 17:50 UTCJul 8, 18:25 UTC35m
2026-07-08 SDM6323 - Jul 8, 06:45 UTCJul 8, 08:45 UTC2h 0m
2026-07-07 SDM6323 - Jul 7, 10:35 UTCJul 8, 08:45 UTC22h 10m
2026-07-05 SDM6340 - Jul 5, 21:05 UTCJul 5, 22:15 UTC1h 10m
2026-07-04 SDM6346 - Jul 4, 17:40 UTCJul 4, 17:55 UTC15m
2026-07-04 SDM6345 - Jul 4, 15:40 UTCJul 4, 15:50 UTC10m
2026-07-04 SDM6324 - Jul 4, 12:45 UTCJul 4, 13:50 UTC1h 5m
2026-07-04 SDM6323 - Jul 4, 10:00 UTCJul 4, 10:45 UTC45m
2026-06-30 SDM7004 - Jun 30, 12:20 UTCJun 30, 13:20 UTC1h 0m
2026-06-27 SDM6321 - Jun 27, 09:19 UTCJun 27, 09:55 UTC35m
2026-06-27 SDM6334 - Jun 27, 06:09 UTCJun 27, 07:24 UTC1h 15m
2026-06-26 SDM6452 TJM → LED Jun 26, 02:05 UTCJun 26, 02:44 UTC40m
2026-06-24 SDM6321 - Jun 24, 08:49 UTCJun 24, 09:39 UTC50m
2026-06-23 SDM6452 TJM → LED Jun 23, 03:25 UTCJun 23, 03:39 UTC15m
2026-06-19 SDM6108 - Jun 19, 18:20 UTCJun 19, 18:30 UTC10m
2026-06-19 SDM6322 - Jun 19, 11:39 UTCJun 19, 12:59 UTC1h 20m
2026-06-19 SDM6321 - Jun 19, 09:14 UTCJun 19, 10:09 UTC55m
2026-06-19 SDM6586 - Jun 19, 05:14 UTCJun 19, 06:44 UTC1h 30m
2026-06-18 SDM6346 - Jun 18, 14:05 UTCJun 18, 17:50 UTC3h 45m
2026-06-18 SDM6344 MMK → LED Jun 18, 03:10 UTCJun 18, 03:25 UTC15m
2026-06-12 SDM6340 MMK → LED Jun 12, 21:00 UTCJun 12, 21:15 UTC15m
2026-06-09 SDM6799 KJA → SVX Jun 9, 14:55 UTCJun 9, 15:40 UTC45m
2026-06-07 SDM6821 KJA → TJM Jun 7, 07:00 UTCJun 7, 20:45 UTC13h 45m
2026-06-06 SDM6821 KJA → TJM Jun 6, 20:45 UTCJun 7, 20:30 UTC23h 45m
2026-06-06 SDM6796 FRU → KJA Jun 6, 20:00 UTCJun 7, 15:25 UTC19h 25m
2026-06-06 SDM6796 FRU → KJA Jun 6, 16:34 UTCJun 7, 15:25 UTC22h 50m
2026-06-06 SDM6795 KJA → FRU Jun 6, 15:15 UTCJun 7, 12:25 UTC21h 10m
2026-06-05 SDM6795 KJA → FRU Jun 5, 20:35 UTCJun 6, 20:30 UTC23h 55m
2026-06-05 SDM6795 KJA → FRU Jun 5, 19:55 UTCJun 6, 16:45 UTC20h 50m
2026-06-05 SDM6846 OMS → KJA Jun 5, 04:50 UTCJun 5, 20:35 UTC15h 45m
2026-06-04 SDM6846 OMS → KJA Jun 4, 23:00 UTCJun 5, 20:35 UTC21h 35m
2026-06-04 SDM6846 OMS → KJA Jun 4, 20:45 UTCJun 5, 20:30 UTC23h 45m
2026-06-04 SDM6846 OMS → KJA Jun 4, 15:35 UTCJun 5, 12:50 UTC21h 15m
2026-06-04 SDM6796 FRU → KJA Jun 4, 10:35 UTCJun 5, 09:00 UTC22h 25m
2026-06-04 SDM6796 FRU → KJA Jun 4, 06:35 UTCJun 5, 05:25 UTC22h 50m
2026-06-04 SDM6796 FRU → KJA Jun 4, 05:30 UTCJun 4, 23:35 UTC18h 5m
2026-06-01 SDM6914 CEK → KJA Jun 1, 09:35 UTCJun 1, 20:55 UTC11h 20m
2026-05-31 SDM6791 KJA → SVX May 31, 12:30 UTCJun 1, 04:45 UTC16h 15m
2026-05-31 SDM6791 KJA → SVX May 31, 08:25 UTCJun 1, 04:45 UTC20h 20m
2026-05-30 SDM6796 FRU → KJA May 30, 10:35 UTCMay 31, 08:30 UTC21h 55m
2026-05-30 SDM6796 FRU → KJA May 30, 05:35 UTCMay 30, 12:05 UTC6h 30m
2026-05-26 SDM6799 KJA → SVX May 26, 15:00 UTCMay 26, 21:09 UTC6h 10m
2026-05-24 SDM6822 TJM → KJA May 24, 12:30 UTCMay 25, 02:55 UTC14h 25m
2026-05-24 SDM6821 KJA → TJM May 24, 07:50 UTCMay 25, 02:55 UTC19h 5m
2026-05-21 SDM6842 SGC → KJA May 21, 09:10 UTCMay 21, 13:25 UTC4h 15m
2026-05-20 SDM6846 OMS → KJA May 20, 11:45 UTCMay 21, 09:10 UTC21h 25m

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-89170 page for operator, model, and routing details .

Mode-S 155C52 frequently asked

What is Mode-S code 155C52?
155C52 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-89170.
Where is Mode-S 155C52 registered?
Mode-S code 155C52 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 155C52 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 155C52, octal 05256122, decimal 1,399,890.
What flights does 155C52 operate?
Mode-S 155C52 has broadcast 20 distinct callsigns, including SDM6796, SDM6321, SDM6846, SDM6821, SDM6323.