Apparatus

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sensors Mode-S transponder

48D029

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-WBK · CESSNA 150

Hex
48D029
Octal
22150051
Decimal
4,771,881
Country
PL
Tail
SP-WBK
Type
C150
No current signal · last broadcast 13d ago
Flights observed
37
Distinct callsigns
1
Country
PL
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S 48D029.

Country allocation

The ICAO 24-bit address 48D029 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
SPWBK - 37 2026-06-30

Recent flights last 37

DateFlightRouteTakeoffLandingDuration
2026-06-30 SPWBK - Jun 30, 16:45 UTCJun 30, 19:35 UTC2h 50m
2026-06-30 SPWBK - Jun 30, 10:05 UTCJun 30, 10:15 UTC10m
2026-06-30 SPWBK - Jun 30, 08:55 UTCJun 30, 09:35 UTC40m
2026-06-29 SPWBK - Jun 29, 17:55 UTCJun 29, 19:09 UTC1h 15m
2026-06-29 SPWBK - Jun 29, 05:04 UTCJun 29, 06:09 UTC1h 5m
2026-06-26 SPWBK - Jun 26, 15:29 UTCJun 26, 16:24 UTC55m
2026-06-26 SPWBK - Jun 26, 08:00 UTCJun 26, 08:34 UTC35m
2026-06-26 SPWBK - Jun 26, 06:45 UTCJun 26, 07:00 UTC15m
2026-06-26 SPWBK - Jun 26, 05:05 UTCJun 26, 06:09 UTC1h 5m
2026-06-25 SPWBK - Jun 25, 15:04 UTCJun 25, 19:24 UTC4h 20m
2026-06-25 SPWBK - Jun 25, 10:55 UTCJun 25, 11:59 UTC1h 5m
2026-06-25 SPWBK - Jun 25, 08:09 UTCJun 25, 09:50 UTC1h 40m
2026-06-24 SPWBK - Jun 24, 17:25 UTCJun 24, 19:39 UTC2h 15m
2026-06-24 SPWBK - Jun 24, 16:34 UTCJun 24, 16:54 UTC20m
2026-06-24 SPWBK - Jun 24, 10:19 UTCJun 24, 11:20 UTC1h 0m
2026-06-24 SPWBK - Jun 24, 07:20 UTCJun 24, 08:20 UTC1h 0m
2026-06-23 SPWBK - Jun 23, 16:29 UTCJun 23, 17:04 UTC35m
2026-06-23 SPWBK - Jun 23, 14:49 UTCJun 23, 15:44 UTC55m
2026-06-23 SPWBK - Jun 23, 05:09 UTCJun 23, 05:54 UTC45m
2026-06-22 SPWBK - Jun 22, 18:00 UTCJun 22, 19:44 UTC1h 45m
2026-06-22 SPWBK - Jun 22, 16:45 UTCJun 22, 17:29 UTC45m
2026-06-22 SPWBK - Jun 22, 13:25 UTCJun 22, 15:20 UTC1h 55m
2026-06-22 SPWBK - Jun 22, 09:24 UTCJun 22, 11:14 UTC1h 50m
2026-06-18 SPWBK - Jun 18, 10:20 UTCJun 18, 10:55 UTC35m
2026-06-18 SPWBK - Jun 18, 07:20 UTCJun 18, 07:35 UTC15m
2026-06-03 SPWBK - Jun 3, 07:45 UTCJun 3, 08:00 UTC15m
2026-05-25 SPWBK - May 25, 11:35 UTCMay 25, 11:50 UTC15m
2026-05-22 SPWBK - May 22, 16:00 UTCMay 22, 17:00 UTC1h 0m
2026-05-17 SPWBK - May 17, 12:40 UTCMay 17, 12:55 UTC15m
2026-05-17 SPWBK - May 17, 07:05 UTCMay 17, 07:30 UTC25m
2026-05-12 SPWBK - May 12, 09:35 UTCMay 12, 09:45 UTC10m
2026-04-18 SPWBK - Apr 18, 08:35 UTCApr 18, 10:05 UTC1h 30m
2026-04-18 SPWBK - Apr 18, 07:20 UTCApr 18, 08:00 UTC40m
2026-04-17 SPWBK - Apr 17, 13:20 UTCApr 17, 14:05 UTC45m
2026-04-17 SPWBK - Apr 17, 11:25 UTCApr 17, 12:00 UTC35m
2026-04-17 SPWBK - Apr 17, 09:30 UTCApr 17, 10:15 UTC45m
2026-04-13 SPWBK - Apr 13, 13:15 UTCApr 13, 13:25 UTC10m

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

Mode-S 48D029 frequently asked

What is Mode-S code 48D029?
48D029 is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-WBK.
Where is Mode-S 48D029 registered?
Mode-S code 48D029 is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48D029 broadcasting right now?
No active broadcast right now. Last signal was 13d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48D029, octal 22150051, decimal 4,771,881.
What flights does 48D029 operate?
Mode-S 48D029 has broadcast 1 distinct callsign, including SPWBK.