sensors Mode-S transponder

48EA01

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-EXL · BOEING 737 MAX 8

Hex
48EA01
Octal
22165001
Decimal
4,778,497
Country
PL
Tail
SP-EXL
Type
B38M
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
2
Country
PL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 48EA01.

Country allocation

The ICAO 24-bit address 48EA01 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 2 distinct

Callsign Airline Flights Last seen
ENT1TE - 3 2026-04-13
ENT4TB - 2 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 ENT4TB - Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 ENT4TB - Apr 13, 16:15 UTCApr 13, 20:10 UTC3h 55m
2026-04-13 ENT1TE - Apr 13, 12:20 UTCApr 13, 16:15 UTC3h 55m
2026-04-13 ENT1TE - Apr 13, 11:55 UTCApr 13, 13:35 UTC1h 40m
2026-04-13 ENT1TE - Apr 13, 09:00 UTCApr 13, 12:15 UTC3h 15m

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

Mode-S 48EA01 frequently asked

What is Mode-S code 48EA01?
48EA01 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-EXL.
Where is Mode-S 48EA01 registered?
Mode-S code 48EA01 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48EA01 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 48EA01, octal 22165001, decimal 4,778,497.
What flights does 48EA01 operate?
Mode-S 48EA01 has broadcast 2 distinct callsigns, including ENT1TE, ENT4TB.