Apparatus

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sensors Mode-S transponder

4B0DA8

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-FEM · PILATUS PC-12

Hex
4B0DA8
Octal
22606650
Decimal
4,918,696
Country
CH
Tail
HB-FEM
Type
PC12
No current signal · last broadcast 1d ago
Flights observed
86
Distinct callsigns
1
Country
CH
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4B0DA8.

Country allocation

The ICAO 24-bit address 4B0DA8 falls within the block assigned to Switzerland (CH) by ICAO Annex 10, Volume III. Every aircraft registered in Switzerland 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
HBFEM - 86 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 HBFEM - Jul 16, 18:10 UTCJul 16, 19:25 UTC1h 15m
2026-07-16 HBFEM - Jul 16, 11:54 UTCJul 16, 13:25 UTC1h 30m
2026-07-15 HBFEM - Jul 15, 17:00 UTCJul 15, 19:00 UTC2h 0m
2026-07-15 HBFEM - Jul 15, 12:20 UTCJul 15, 14:50 UTC2h 30m
2026-07-15 HBFEM - Jul 15, 10:00 UTCJul 15, 10:15 UTC15m
2026-07-14 HBFEM - Jul 14, 14:40 UTCJul 14, 16:10 UTC1h 30m
2026-07-13 HBFEM - Jul 13, 14:20 UTCJul 13, 17:30 UTC3h 10m
2026-07-11 HBFEM - Jul 11, 07:50 UTCJul 11, 09:25 UTC1h 35m
2026-07-09 HBFEM - Jul 9, 15:25 UTCJul 9, 16:05 UTC40m
2026-07-09 HBFEM - Jul 9, 14:30 UTCJul 9, 14:50 UTC20m
2026-07-08 HBFEM - Jul 8, 14:50 UTCJul 8, 15:05 UTC15m
2026-07-08 HBFEM - Jul 8, 13:30 UTCJul 8, 14:20 UTC50m
2026-07-07 HBFEM - Jul 7, 13:15 UTCJul 7, 14:05 UTC50m
2026-07-07 HBFEM - Jul 7, 10:05 UTCJul 7, 10:25 UTC20m
2026-07-01 HBFEM - Jul 1, 16:50 UTCJul 1, 17:00 UTC10m
2026-07-01 HBFEM - Jul 1, 14:25 UTCJul 1, 16:35 UTC2h 10m
2026-06-30 HBFEM - Jun 30, 07:30 UTCJun 30, 08:20 UTC50m
2026-06-30 HBFEM - Jun 30, 06:05 UTCJun 30, 06:50 UTC45m
2026-06-30 HBFEM - Jun 30, 05:35 UTCJun 30, 05:45 UTC10m
2026-06-28 HBFEM - Jun 28, 09:45 UTCJun 28, 10:44 UTC1h 0m
2026-06-28 HBFEM - Jun 28, 07:14 UTCJun 28, 08:05 UTC50m
2026-06-27 HBFEM BXO → OLB Jun 27, 08:14 UTCJun 27, 09:44 UTC1h 30m
2026-06-26 HBFEM - Jun 26, 14:50 UTCJun 26, 17:15 UTC2h 25m
2026-06-26 HBFEM - Jun 26, 11:24 UTCJun 26, 13:24 UTC2h 0m
2026-06-26 HBFEM - Jun 26, 09:30 UTCJun 26, 10:25 UTC55m
2026-06-19 HBFEM - Jun 19, 06:39 UTCJun 19, 06:59 UTC20m
2026-06-18 HBFEM - Jun 18, 14:20 UTCJun 18, 16:10 UTC1h 50m
2026-06-17 HBFEM - Jun 17, 14:00 UTCJun 17, 15:46 UTC1h 45m
2026-06-17 HBFEM - Jun 17, 12:15 UTCJun 17, 13:10 UTC55m
2026-06-16 HBFEM - Jun 16, 11:20 UTCJun 16, 11:30 UTC10m
2026-06-16 HBFEM - Jun 16, 08:55 UTCJun 16, 10:04 UTC1h 10m
2026-06-16 HBFEM - Jun 16, 05:55 UTCJun 16, 06:50 UTC55m
2026-06-14 HBFEM - Jun 14, 14:30 UTCJun 14, 15:10 UTC40m
2026-06-14 HBFEM - Jun 14, 12:10 UTCJun 14, 12:40 UTC30m
2026-06-13 HBFEM - Jun 13, 14:10 UTCJun 13, 17:35 UTC3h 25m
2026-06-13 HBFEM - Jun 13, 09:45 UTCJun 13, 13:20 UTC3h 35m
2026-06-13 HBFEM - Jun 13, 08:05 UTCJun 13, 08:30 UTC25m
2026-06-11 HBFEM - Jun 11, 10:10 UTCJun 11, 11:30 UTC1h 20m
2026-06-11 HBFEM - Jun 11, 08:05 UTCJun 11, 09:20 UTC1h 15m
2026-06-11 HBFEM - Jun 11, 06:35 UTCJun 11, 06:50 UTC15m
2026-06-07 HBFEM - Jun 7, 13:50 UTCJun 7, 15:05 UTC1h 15m
2026-06-05 HBFEM - Jun 5, 11:30 UTCJun 5, 12:05 UTC35m
2026-06-03 HBFEM - Jun 3, 13:05 UTCJun 3, 14:15 UTC1h 10m
2026-06-02 HBFEM - Jun 2, 17:15 UTCJun 2, 18:55 UTC1h 40m
2026-05-31 HBFEM - May 31, 14:30 UTCMay 31, 16:00 UTC1h 30m
2026-05-31 HBFEM - May 31, 12:05 UTCMay 31, 12:55 UTC50m
2026-05-31 HBFEM - May 31, 08:25 UTCMay 31, 09:05 UTC40m
2026-05-30 HBFEM - May 30, 08:05 UTCMay 30, 09:25 UTC1h 20m
2026-05-29 HBFEM - May 29, 13:30 UTCMay 29, 14:20 UTC50m
2026-05-29 HBFEM - May 29, 08:10 UTCMay 29, 08:50 UTC40m

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 HB-FEM page for operator, model, and routing details .

Mode-S 4B0DA8 frequently asked

What is Mode-S code 4B0DA8?
4B0DA8 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-FEM.
Where is Mode-S 4B0DA8 registered?
Mode-S code 4B0DA8 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B0DA8 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 4B0DA8, octal 22606650, decimal 4,918,696.
What flights does 4B0DA8 operate?
Mode-S 4B0DA8 has broadcast 1 distinct callsign, including HBFEM.