sensors Mode-S transponder

155C1E

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-89118 · SUKHOI Superjet 100-95

Hex
155C1E
Octal
05256036
Decimal
1,399,838
Country
RU
Tail
RA-89118
Type
SU95
Broadcasting now · callsign SSF142 · 33,025 ft
Flights observed
12
Distinct callsigns
9
Country
RU
Last broadcast
1h ago

Current position

155C1E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 155C1E 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 9 distinct

Callsign Airline Flights Last seen
SSF324 Severstal 3 2026-05-07
SSF147 - 2 2026-06-14
SSF518 Severstal 1 2026-05-08
SSF517 Severstal 1 2026-05-08
SSF506 Severstal 1 2026-05-30
SSF501 Severstal 1 2026-05-11
SSF363 - 1 2026-06-11
SSF263 Severstal 1 2026-04-19
SSF146 Severstal 1 2026-05-02

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-06-14 SSF147 - Jun 14, 17:30 UTCJun 14, 18:05 UTC35m
2026-06-11 SSF363 - Jun 11, 11:05 UTCJun 11, 11:25 UTC20m
2026-05-30 SSF506 PES → MRV May 30, 03:50 UTCMay 30, 04:50 UTC1h 0m
2026-05-11 SSF501 KGD → KLF May 11, 12:05 UTCMay 11, 13:30 UTC1h 25m
2026-05-08 SSF518 OVS → LED May 8, 11:19 UTCMay 8, 15:15 UTC3h 55m
2026-05-08 SSF517 LED → OVS May 8, 10:09 UTCMay 8, 10:29 UTC20m
2026-05-07 SSF324 UCT → LED May 7, 09:10 UTCMay 7, 16:00 UTC6h 50m
2026-05-05 SSF324 UCT → LED May 5, 14:35 UTCMay 5, 15:35 UTC1h 0m
2026-05-04 SSF324 UCT → LED May 4, 07:10 UTCMay 4, 08:05 UTC55m
2026-05-02 SSF146 KGD → CEE May 2, 19:30 UTCMay 2, 20:25 UTC55m
2026-05-02 SSF147 PES → KGD May 2, 17:15 UTCMay 2, 17:50 UTC35m
2026-04-19 SSF263 SVO → PES Apr 19, 15:30 UTCApr 19, 15:50 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-89118 page for operator, model, and routing details .

Mode-S 155C1E frequently asked

What is Mode-S code 155C1E?
155C1E is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-89118.
Where is Mode-S 155C1E registered?
Mode-S code 155C1E is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 155C1E broadcasting right now?
Yes. Mode-S 155C1E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 155C1E, octal 05256036, decimal 1,399,838.
What flights does 155C1E operate?
Mode-S 155C1E has broadcast 9 distinct callsigns, including SSF324, SSF147, SSF518, SSF517, SSF506.