sensors Mode-S transponder

488912

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-CIT · CESSNA 525 CitationJet

Hex
488912
Octal
22104422
Decimal
4,753,682
Country
PL
Tail
SP-CIT
Type
C525
No current signal · last broadcast 1d ago
Flights observed
1
Distinct callsigns
1
Country
PL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 488912.

Country allocation

The ICAO 24-bit address 488912 falls within the block assigned to Poland (PL) by ICAO Annex 10, Volume III. Every aircraft registered in Poland 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 1 distinct

Callsign Airline Flights Last seen
BNI5T - 1 2026-04-13

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-13 BNI5T - Apr 13, 18:15 UTCApr 13, 18:45 UTC30m

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 SP-CIT page for operator, model, and routing details .

Mode-S 488912 frequently asked

What is Mode-S code 488912?
488912 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-CIT.
Where is Mode-S 488912 registered?
Mode-S code 488912 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 488912 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 488912, octal 22104422, decimal 4,753,682.
What flights does 488912 operate?
Mode-S 488912 has broadcast 1 distinct callsign, including BNI5T.