Apparatus

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sensors Mode-S transponder

48EF35

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-SMJ · TECNAM P-2008

Hex
48EF35
Octal
22167465
Decimal
4,779,829
Country
PL
Tail
SP-SMJ
Type
P208
No current signal · last broadcast 16h ago
Flights observed
92
Distinct callsigns
1
Country
PL
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 48EF35.

Country allocation

The ICAO 24-bit address 48EF35 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
SPSMJ - 92 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SPSMJ - May 29, 04:35 UTCMay 29, 07:05 UTC2h 30m
2026-05-28 SPSMJ - May 28, 17:10 UTCMay 28, 17:35 UTC25m
2026-05-28 SPSMJ - May 28, 12:10 UTCMay 28, 15:45 UTC3h 35m
2026-05-28 SPSMJ POZ → POZ May 28, 10:55 UTCMay 28, 11:50 UTC55m
2026-05-28 SPSMJ POZ → POZ May 28, 04:25 UTCMay 28, 06:35 UTC2h 10m
2026-05-27 SPSMJ - May 27, 17:35 UTCMay 27, 18:00 UTC25m
2026-05-19 SPSMJ - May 19, 14:20 UTCMay 19, 14:50 UTC30m
2026-05-16 SPSMJ POZ → POZ May 16, 08:20 UTCMay 16, 09:10 UTC50m
2026-05-15 SPSMJ - May 15, 16:45 UTCMay 15, 18:50 UTC2h 5m
2026-05-15 SPSMJ - May 15, 14:25 UTCMay 15, 16:00 UTC1h 34m
2026-05-13 SPSMJ POZ → POZ May 13, 16:25 UTCMay 13, 19:35 UTC3h 10m
2026-05-13 SPSMJ - May 13, 15:00 UTCMay 13, 15:50 UTC50m
2026-05-13 SPSMJ - May 13, 13:45 UTCMay 13, 14:20 UTC35m
2026-05-13 SPSMJ - May 13, 10:55 UTCMay 13, 11:25 UTC30m
2026-05-13 SPSMJ - May 13, 09:45 UTCMay 13, 10:20 UTC35m
2026-05-12 SPSMJ - May 12, 10:55 UTCMay 12, 14:35 UTC3h 40m
2026-05-08 SPSMJ POZ → POZ May 8, 07:39 UTCMay 8, 08:44 UTC1h 5m
2026-05-06 SPSMJ POZ → POZ May 6, 14:30 UTCMay 6, 16:25 UTC1h 55m
2026-05-05 SPSMJ - May 5, 12:25 UTCMay 5, 14:35 UTC2h 10m
2026-05-05 SPSMJ - May 5, 10:00 UTCMay 5, 10:30 UTC30m
2026-05-05 SPSMJ - May 5, 07:15 UTCMay 5, 09:25 UTC2h 10m
2026-05-04 SPSMJ - May 4, 10:30 UTCMay 4, 11:35 UTC1h 5m
2026-05-04 SPSMJ - May 4, 09:00 UTCMay 4, 09:30 UTC30m
2026-05-04 SPSMJ - May 4, 07:50 UTCMay 4, 08:25 UTC35m
2026-05-04 SPSMJ - May 4, 05:00 UTCMay 4, 07:00 UTC2h 0m
2026-05-02 SPSMJ POZ → POZ May 2, 12:40 UTCMay 2, 14:50 UTC2h 10m
2026-05-01 SPSMJ - May 1, 18:25 UTCMay 1, 19:45 UTC1h 20m
2026-05-01 SPSMJ - May 1, 15:40 UTCMay 1, 16:10 UTC30m
2026-05-01 SPSMJ - May 1, 14:30 UTCMay 1, 15:00 UTC30m
2026-05-01 SPSMJ - May 1, 13:20 UTCMay 1, 13:50 UTC30m
2026-05-01 SPSMJ - May 1, 10:10 UTCMay 1, 12:10 UTC2h 0m
2026-05-01 SPSMJ - May 1, 07:00 UTCMay 1, 07:40 UTC40m
2026-05-01 SPSMJ - May 1, 05:20 UTCMay 1, 06:10 UTC50m
2026-04-30 SPSMJ POZ → POZ Apr 30, 16:15 UTCApr 30, 17:20 UTC1h 5m
2026-04-30 SPSMJ - Apr 30, 13:05 UTCApr 30, 14:40 UTC1h 35m
2026-04-30 SPSMJ - Apr 30, 04:30 UTCApr 30, 07:25 UTC2h 55m
2026-04-29 SPSMJ POZ → POZ Apr 29, 16:00 UTCApr 29, 17:45 UTC1h 45m
2026-04-29 SPSMJ - Apr 29, 13:40 UTCApr 29, 14:10 UTC30m
2026-04-29 SPSMJ - Apr 29, 06:15 UTCApr 29, 06:39 UTC25m
2026-04-28 SPSMJ - Apr 28, 14:50 UTCApr 28, 15:45 UTC55m
2026-04-28 SPSMJ - Apr 28, 13:20 UTCApr 28, 13:55 UTC35m
2026-04-27 SPSMJ POZ → POZ Apr 27, 15:55 UTCApr 27, 18:10 UTC2h 15m
2026-04-27 SPSMJ POZ → POZ Apr 27, 04:45 UTCApr 27, 06:55 UTC2h 10m
2026-04-26 SPSMJ POZ → POZ Apr 26, 16:05 UTCApr 26, 18:15 UTC2h 10m
2026-04-25 SPSMJ POZ → POZ Apr 25, 13:05 UTCApr 25, 14:45 UTC1h 40m
2026-04-25 SPSMJ - Apr 25, 12:00 UTCApr 25, 12:25 UTC25m
2026-04-25 SPSMJ - Apr 25, 10:40 UTCApr 25, 11:10 UTC30m
2026-04-24 SPSMJ - Apr 24, 13:55 UTCApr 24, 14:50 UTC55m
2026-04-24 SPSMJ POZ → POZ Apr 24, 12:15 UTCApr 24, 13:20 UTC1h 5m
2026-04-24 SPSMJ - Apr 24, 10:40 UTCApr 24, 11:55 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-SMJ page for operator, model, and routing details .

Mode-S 48EF35 frequently asked

What is Mode-S code 48EF35?
48EF35 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-SMJ.
Where is Mode-S 48EF35 registered?
Mode-S code 48EF35 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48EF35 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48EF35, octal 22167465, decimal 4,779,829.
What flights does 48EF35 operate?
Mode-S 48EF35 has broadcast 1 distinct callsign, including SPSMJ.