Apparatus

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sensors Mode-S transponder

155C5A

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-89178 · SUKHOI Superjet 100-95

Hex
155C5A
Octal
05256132
Decimal
1,399,898
Country
RU
Tail
RA-89178
Type
SU95
No current signal · last broadcast 6h ago
Flights observed
53
Distinct callsigns
20
Country
RU
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 155C5A.

Country allocation

The ICAO 24-bit address 155C5A 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
SDM6799 - 4 2026-07-14
SDM6329 - 4 2026-06-27
SDM6845 - 3 2026-07-03
SDM6330 - 3 2026-06-27
SDM6322 - 3 2026-06-26
SDM6914 Rossiya - Russian Airlines 2 2026-05-18
SDM6843 - 2 2026-07-18
SDM6822 - 2 2026-07-05
SDM6648 Rossiya - Russian Airlines 2 2026-04-24
SDM6396 - 2 2026-06-15
SDM6324 - 2 2026-06-25
SDM6323 - 2 2026-06-25
SDM6993 Rossiya - Russian Airlines 1 2026-05-22
SDM6913 - 1 2026-07-13
SDM6885 Rossiya - Russian Airlines 1 2026-05-23
SDM6881 Rossiya - Russian Airlines 1 2026-05-11
SDM6841 - 1 2026-07-06
SDM6821 - 1 2026-07-05
SDM6791 - 1 2026-07-09
SDM6699 Rossiya - Russian Airlines 1 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 SDM6843 - Jul 18, 14:45 UTCJul 18, 20:50 UTC6h 5m
2026-07-14 SDM6799 - Jul 14, 06:45 UTCJul 14, 21:10 UTC14h 25m
2026-07-13 SDM6799 - Jul 13, 20:35 UTCJul 14, 20:30 UTC23h 55m
2026-07-13 SDM6799 - Jul 13, 20:05 UTCJul 14, 15:55 UTC19h 50m
2026-07-13 SDM6913 - Jul 13, 14:40 UTCJul 14, 12:50 UTC22h 10m
2026-07-11 SDM6843 - Jul 11, 18:45 UTCJul 11, 19:30 UTC45m
2026-07-09 SDM6791 - Jul 9, 16:30 UTCJul 10, 08:25 UTC15h 55m
2026-07-06 SDM6841 - Jul 6, 16:20 UTCJul 6, 20:50 UTC4h 30m
2026-07-05 SDM6822 - Jul 5, 20:55 UTCJul 6, 20:30 UTC23h 35m
2026-07-05 SDM6822 - Jul 5, 16:35 UTCJul 6, 16:30 UTC23h 55m
2026-07-05 SDM6821 - Jul 5, 15:50 UTCJul 5, 21:35 UTC5h 45m
2026-07-03 SDM6845 - Jul 3, 10:15 UTCJul 3, 14:10 UTC3h 55m
2026-07-01 SDM6845 - Jul 1, 09:05 UTCJul 1, 21:35 UTC12h 30m
2026-06-30 SDM6845 - Jun 30, 20:40 UTCJul 1, 16:35 UTC19h 55m
2026-06-27 SDM6330 - Jun 27, 17:14 UTCJun 27, 18:15 UTC1h 0m
2026-06-27 SDM6329 - Jun 27, 02:20 UTCJun 27, 15:30 UTC13h 10m
2026-06-26 SDM6322 - Jun 26, 11:00 UTCJun 26, 12:29 UTC1h 30m
2026-06-25 SDM6329 - Jun 25, 14:44 UTCJun 25, 15:20 UTC35m
2026-06-25 SDM6324 - Jun 25, 09:05 UTCJun 25, 10:09 UTC1h 5m
2026-06-25 SDM6323 - Jun 25, 02:39 UTCJun 25, 07:05 UTC4h 25m
2026-06-23 SDM6583 LED → PEE Jun 23, 06:09 UTCJun 23, 06:34 UTC25m
2026-06-18 SDM6330 - Jun 18, 17:10 UTCJun 18, 18:20 UTC1h 10m
2026-06-18 SDM6329 - Jun 18, 14:35 UTCJun 18, 15:25 UTC50m
2026-06-18 SDM6322 - Jun 18, 11:15 UTCJun 18, 12:25 UTC1h 10m
2026-06-18 SDM6321 - Jun 18, 08:50 UTCJun 18, 09:35 UTC45m
2026-06-15 SDM6345 LED → MMK Jun 15, 15:59 UTCJun 15, 16:45 UTC45m
2026-06-15 SDM6396 - Jun 15, 12:45 UTCJun 15, 14:40 UTC1h 55m
2026-06-14 SDM6332 KGD → LED Jun 14, 20:10 UTCJun 14, 21:20 UTC1h 10m
2026-06-14 SDM6331 LED → KGD Jun 14, 18:20 UTCJun 14, 18:50 UTC30m
2026-06-14 SDM6319 - Jun 14, 12:00 UTCJun 14, 12:35 UTC35m
2026-06-14 SDM6324 - Jun 14, 08:45 UTCJun 14, 10:00 UTC1h 15m
2026-06-14 SDM6323 - Jun 14, 06:40 UTCJun 14, 07:00 UTC20m
2026-06-10 SDM6344 MMK → LED Jun 10, 03:05 UTCJun 10, 03:20 UTC15m
2026-06-09 SDM6231 LED → KUF Jun 9, 09:05 UTCJun 9, 09:30 UTC25m
2026-06-08 SDM6413 LED → UFA Jun 8, 13:50 UTCJun 8, 14:10 UTC20m
2026-06-07 SDM6588 SCW → LED Jun 7, 02:25 UTCJun 7, 03:10 UTC45m
2026-06-05 SDM6327 LED → KGD Jun 5, 21:25 UTCJun 5, 22:05 UTC40m
2026-06-04 SDM6330 KGD → LED Jun 4, 17:10 UTCJun 4, 18:05 UTC55m
2026-06-04 SDM6329 LED → KGD Jun 4, 14:35 UTCJun 4, 15:20 UTC45m
2026-06-04 SDM6322 KGD → LED Jun 4, 11:20 UTCJun 4, 12:20 UTC1h 0m
2026-06-03 SDM6396 MMK → LED Jun 3, 15:40 UTCJun 4, 09:40 UTC18h 0m
2026-05-31 SDM6699 SVO → LED May 31, 22:10 UTCMay 31, 23:10 UTC1h 0m
2026-05-23 SDM6885 SVO → IJK May 23, 16:15 UTCMay 23, 16:40 UTC25m
2026-05-22 SDM6993 SVO → ARH May 22, 16:10 UTCMay 22, 16:35 UTC25m
2026-05-20 SDM6382 IJK → SVO May 20, 11:00 UTCMay 20, 11:35 UTC35m
2026-05-19 SDM6404 SVX → LED May 19, 19:35 UTCMay 19, 20:20 UTC45m
2026-05-18 SDM6799 KJA → SVX May 18, 20:35 UTCMay 19, 15:30 UTC18h 55m
2026-05-18 SDM6914 CEK → KJA May 18, 20:20 UTCMay 19, 15:30 UTC19h 10m
2026-05-18 SDM6914 CEK → KJA May 18, 06:55 UTCMay 18, 21:00 UTC14h 4m
2026-05-11 SDM6881 KJA → IKT May 11, 02:25 UTCMay 11, 02:45 UTC20m

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-89178 page for operator, model, and routing details .

Mode-S 155C5A frequently asked

What is Mode-S code 155C5A?
155C5A is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-89178.
Where is Mode-S 155C5A registered?
Mode-S code 155C5A is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 155C5A broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 155C5A, octal 05256132, decimal 1,399,898.
What flights does 155C5A operate?
Mode-S 155C5A has broadcast 20 distinct callsigns, including SDM6799, SDM6329, SDM6845, SDM6330, SDM6322.