sensors Mode-S transponder

155BBA

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-89018 · SUKHOI Superjet 100-95

Hex
155BBA
Octal
05255672
Decimal
1,399,738
Country
RU
Tail
RA-89018
Type
SU95
No current signal · last broadcast 10d ago
Flights observed
17
Distinct callsigns
14
Country
RU
Last broadcast
10d ago

Last known position

Most recent position reported by Mode-S 155BBA.

Country allocation

The ICAO 24-bit address 155BBA 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 14 distinct

Callsign Airline Flights Last seen
GZP9644 - 2 2026-04-20
GZP9642 - 2 2026-04-21
GZP468 - 2 2026-04-23
GZP9643 - 1 2026-04-19
GZP452 - 1 2026-05-23
GZP292 - 1 2026-04-26
GZP262 - 1 2026-04-16
GZP261 - 1 2026-04-15
GZP260 - 1 2026-04-15
GZP259 - 1 2026-04-14
GZP252 - 1 2026-04-13
GZP246 Gazpromavia 1 2026-04-17
GZP245 Gazpromavia 1 2026-04-17
GZP204 - 1 2026-05-22

Recent flights last 17

DateFlightRouteTakeoffLandingDuration
2026-05-23 GZP452 - May 23, 12:40 UTCMay 23, 15:30 UTC2h 50m
2026-05-22 GZP204 - May 22, 13:05 UTCMay 22, 14:10 UTC1h 5m
2026-04-26 GZP292 - Apr 26, 08:20 UTCApr 26, 08:35 UTC15m
2026-04-23 GZP468 - Apr 23, 11:10 UTCApr 23, 11:35 UTC25m
2026-04-22 GZP468 - Apr 22, 13:35 UTCApr 23, 11:35 UTC22h 0m
2026-04-21 GZP9642 - Apr 21, 14:35 UTCApr 22, 13:45 UTC23h 10m
2026-04-21 GZP9642 - Apr 21, 13:35 UTCApr 21, 14:50 UTC1h 15m
2026-04-20 GZP9644 - Apr 20, 05:15 UTCApr 20, 05:40 UTC25m
2026-04-20 GZP9644 - Apr 20, 03:50 UTCApr 20, 04:20 UTC30m
2026-04-19 GZP9643 - Apr 19, 03:10 UTCApr 19, 03:30 UTC20m
2026-04-17 GZP246 NUX → UFA Apr 17, 10:30 UTCApr 17, 10:40 UTC10m
2026-04-17 GZP245 VKO → UFA Apr 17, 04:40 UTCApr 17, 04:55 UTC15m
2026-04-16 GZP262 - Apr 16, 09:19 UTCApr 16, 10:49 UTC1h 30m
2026-04-15 GZP261 - Apr 15, 11:20 UTCApr 15, 11:40 UTC20m
2026-04-15 GZP260 - Apr 15, 07:15 UTCApr 15, 08:30 UTC1h 15m
2026-04-14 GZP259 - Apr 14, 05:30 UTCApr 14, 06:20 UTC50m
2026-04-13 GZP252 - Apr 13, 08:25 UTCApr 13, 09:55 UTC1h 30m

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-89018 page for operator, model, and routing details .

Mode-S 155BBA frequently asked

What is Mode-S code 155BBA?
155BBA is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-89018.
Where is Mode-S 155BBA registered?
Mode-S code 155BBA is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 155BBA broadcasting right now?
No active broadcast right now. Last signal was 10d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 155BBA, octal 05255672, decimal 1,399,738.
What flights does 155BBA operate?
Mode-S 155BBA has broadcast 14 distinct callsigns, including GZP9644, GZP9642, GZP468, GZP9643, GZP452.