Apparatus

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sensors Mode-S transponder

48ACA4

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-LFE · TECNAM P-2008

Hex
48ACA4
Octal
22126244
Decimal
4,762,788
Country
PL
Tail
SP-LFE
Type
P208
No current signal · last broadcast 4d ago
Flights observed
205
Distinct callsigns
1
Country
PL
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 48ACA4.

Country allocation

The ICAO 24-bit address 48ACA4 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
SPLFE - 205 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SPLFE - Jul 26, 18:45 UTCJul 26, 19:05 UTC20m
2026-07-26 SPLFE - Jul 26, 16:20 UTCJul 26, 17:50 UTC1h 30m
2026-07-26 SPLFE - Jul 26, 12:55 UTCJul 26, 14:40 UTC1h 45m
2026-07-26 SPLFE - Jul 26, 10:05 UTCJul 26, 11:50 UTC1h 45m
2026-07-25 SPLFE - Jul 25, 12:15 UTCJul 25, 12:40 UTC25m
2026-07-24 SPLFE - Jul 24, 17:35 UTCJul 24, 18:45 UTC1h 10m
2026-07-24 SPLFE - Jul 24, 14:55 UTCJul 24, 16:15 UTC1h 20m
2026-07-24 SPLFE - Jul 24, 13:40 UTCJul 24, 13:50 UTC10m
2026-07-24 SPLFE - Jul 24, 12:40 UTCJul 24, 13:00 UTC20m
2026-07-24 SPLFE - Jul 24, 11:40 UTCJul 24, 12:05 UTC25m
2026-07-23 SPLFE - Jul 23, 10:45 UTCJul 23, 11:45 UTC1h 0m
2026-07-22 SPLFE - Jul 22, 17:55 UTCJul 22, 18:05 UTC10m
2026-07-22 SPLFE - Jul 22, 16:35 UTCJul 22, 16:45 UTC10m
2026-07-22 SPLFE - Jul 22, 14:40 UTCJul 22, 15:10 UTC30m
2026-07-19 SPLFE - Jul 19, 05:55 UTCJul 19, 06:45 UTC50m
2026-07-18 SPLFE - Jul 18, 18:15 UTCJul 18, 18:25 UTC10m
2026-07-18 SPLFE - Jul 18, 17:00 UTCJul 18, 17:10 UTC10m
2026-07-18 SPLFE - Jul 18, 14:55 UTCJul 18, 15:40 UTC45m
2026-07-18 SPLFE - Jul 18, 08:35 UTCJul 18, 09:30 UTC55m
2026-07-17 SPLFE - Jul 17, 15:20 UTCJul 17, 16:19 UTC1h 0m
2026-07-17 SPLFE - Jul 17, 11:50 UTCJul 17, 13:15 UTC1h 25m
2026-07-17 SPLFE - Jul 17, 10:44 UTCJul 17, 10:55 UTC10m
2026-07-17 SPLFE - Jul 17, 08:35 UTCJul 17, 09:45 UTC1h 10m
2026-07-16 SPLFE - Jul 16, 17:10 UTCJul 16, 18:00 UTC50m
2026-07-16 SPLFE - Jul 16, 14:40 UTCJul 16, 16:00 UTC1h 20m
2026-07-16 SPLFE - Jul 16, 12:44 UTCJul 16, 13:20 UTC35m
2026-07-16 SPLFE - Jul 16, 11:05 UTCJul 16, 11:20 UTC15m
2026-07-16 SPLFE - Jul 16, 05:55 UTCJul 16, 06:40 UTC45m
2026-07-15 SPLFE - Jul 15, 18:05 UTCJul 15, 19:05 UTC1h 0m
2026-07-15 SPLFE - Jul 15, 12:50 UTCJul 15, 13:05 UTC15m
2026-07-15 SPLFE - Jul 15, 11:00 UTCJul 15, 11:45 UTC45m
2026-07-15 SPLFE - Jul 15, 08:35 UTCJul 15, 09:20 UTC45m
2026-07-14 SPLFE - Jul 14, 16:10 UTCJul 14, 16:45 UTC35m
2026-07-14 SPLFE - Jul 14, 14:50 UTCJul 14, 15:05 UTC15m
2026-07-14 SPLFE - Jul 14, 12:20 UTCJul 14, 12:35 UTC15m
2026-07-13 SPLFE - Jul 13, 17:40 UTCJul 13, 18:35 UTC55m
2026-07-13 SPLFE - Jul 13, 15:10 UTCJul 13, 16:25 UTC1h 15m
2026-07-13 SPLFE - Jul 13, 12:40 UTCJul 13, 13:30 UTC50m
2026-07-13 SPLFE - Jul 13, 11:00 UTCJul 13, 11:20 UTC20m
2026-07-11 SPLFE - Jul 11, 15:00 UTCJul 11, 15:55 UTC55m
2026-07-11 SPLFE - Jul 11, 13:20 UTCJul 11, 14:15 UTC55m
2026-07-11 SPLFE - Jul 11, 12:10 UTCJul 11, 12:35 UTC25m
2026-07-11 SPLFE - Jul 11, 09:25 UTCJul 11, 10:25 UTC1h 0m
2026-07-11 SPLFE - Jul 11, 07:40 UTCJul 11, 08:01 UTC20m
2026-07-10 SPLFE - Jul 10, 17:50 UTCJul 10, 18:35 UTC45m
2026-07-10 SPLFE - Jul 10, 15:35 UTCJul 10, 17:00 UTC1h 25m
2026-07-10 SPLFE - Jul 10, 10:30 UTCJul 10, 11:55 UTC1h 25m
2026-07-10 SPLFE - Jul 10, 07:20 UTCJul 10, 09:25 UTC2h 5m
2026-07-09 SPLFE - Jul 9, 18:20 UTCJul 9, 19:20 UTC1h 0m
2026-07-09 SPLFE - Jul 9, 08:55 UTCJul 9, 10:10 UTC1h 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-LFE page for operator, model, and routing details .

Mode-S 48ACA4 frequently asked

What is Mode-S code 48ACA4?
48ACA4 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-LFE.
Where is Mode-S 48ACA4 registered?
Mode-S code 48ACA4 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48ACA4 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48ACA4, octal 22126244, decimal 4,762,788.
What flights does 48ACA4 operate?
Mode-S 48ACA4 has broadcast 1 distinct callsign, including SPLFE.