sensors Mode-S transponder

48E9D7

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-JOY · CESSNA 525B Citation CJ3

Hex
48E9D7
Octal
22164727
Decimal
4,778,455
Country
PL
Tail
SP-JOY
Type
C25B
No current signal · last broadcast 14h ago
Flights observed
7
Distinct callsigns
1
Country
PL
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 48E9D7.

Country allocation

The ICAO 24-bit address 48E9D7 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
HEY02P - 7 2026-04-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 HEY02P - Apr 14, 07:10 UTCApr 14, 08:40 UTC1h 30m
2026-04-14 HEY02P - Apr 14, 05:55 UTCApr 14, 07:10 UTC1h 15m
2026-04-13 HEY02P - Apr 13, 14:30 UTCApr 13, 15:30 UTC1h 0m
2026-04-13 HEY02P - Apr 13, 12:20 UTCApr 13, 13:00 UTC40m
2026-04-13 HEY02P - Apr 13, 11:55 UTCApr 13, 13:00 UTC1h 5m
2026-04-13 HEY02P - Apr 13, 11:10 UTCApr 13, 12:15 UTC1h 5m
2026-04-13 HEY02P - Apr 13, 06:10 UTCApr 13, 07:50 UTC1h 40m

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

Mode-S 48E9D7 frequently asked

What is Mode-S code 48E9D7?
48E9D7 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-JOY.
Where is Mode-S 48E9D7 registered?
Mode-S code 48E9D7 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48E9D7 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48E9D7, octal 22164727, decimal 4,778,455.
What flights does 48E9D7 operate?
Mode-S 48E9D7 has broadcast 1 distinct callsign, including HEY02P.