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sensors Mode-S transponder

4B0F50

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-FUU · PILATUS PC-12

Hex
4B0F50
Octal
22607520
Decimal
4,919,120
Country
CH
Tail
HB-FUU
Type
PC12
No current signal · last broadcast Jul 26, 13:25 UTC
Flights observed
192
Distinct callsigns
3
Country
CH
Last broadcast
Jul 26, 13:25 UTC

Last known position

Most recent position reported by Mode-S 4B0F50.

Country allocation

The ICAO 24-bit address 4B0F50 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 3 distinct

Callsign Airline Flights Last seen
HUE12H - 101 2026-06-18
HUE40H - 89 2026-07-26
HBFUU - 2 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HUE40H FNI → ZRH Jul 26, 11:55 UTCJul 26, 13:20 UTC1h 25m
2026-07-26 HBFUU - Jul 26, 09:35 UTCJul 26, 10:30 UTC55m
2026-07-25 HUE40H - Jul 25, 16:10 UTCJul 25, 16:20 UTC10m
2026-07-25 HUE40H - Jul 25, 14:10 UTCJul 25, 15:25 UTC1h 15m
2026-07-25 HUE40H ZRH → LTT Jul 25, 12:15 UTCJul 25, 13:35 UTC1h 20m
2026-07-24 HUE40H - Jul 24, 13:45 UTCJul 24, 15:45 UTC2h 0m
2026-07-24 HUE40H - Jul 24, 10:15 UTCJul 24, 12:30 UTC2h 15m
2026-07-24 HUE40H LBG → FDH Jul 24, 08:30 UTCJul 24, 09:50 UTC1h 20m
2026-07-24 HUE40H BXO → LBG Jul 24, 06:10 UTCJul 24, 07:30 UTC1h 20m
2026-07-20 HUE40H - Jul 20, 13:15 UTCJul 20, 14:50 UTC1h 35m
2026-07-20 HUE40H - Jul 20, 11:10 UTCJul 20, 12:05 UTC55m
2026-07-20 HUE40H NCE → LTT Jul 20, 09:05 UTCJul 20, 09:30 UTC25m
2026-07-19 HUE40H - Jul 19, 15:10 UTCJul 19, 16:10 UTC1h 0m
2026-07-19 HUE40H - Jul 19, 10:55 UTCJul 19, 12:35 UTC1h 40m
2026-07-19 HUE40H - Jul 19, 07:40 UTCJul 19, 09:40 UTC2h 0m
2026-07-14 HUE40H - Jul 14, 14:40 UTCJul 14, 16:35 UTC1h 55m
2026-07-14 HUE40H - Jul 14, 10:40 UTCJul 14, 12:45 UTC2h 5m
2026-07-14 HUE40H - Jul 14, 08:05 UTCJul 14, 08:30 UTC25m
2026-07-13 HUE40H EDI → ZRH Jul 13, 14:20 UTCJul 13, 17:25 UTC3h 5m
2026-07-13 HUE40H ZRH → EDI Jul 13, 09:15 UTCJul 13, 12:25 UTC3h 10m
2026-07-12 HUE40H - Jul 12, 12:15 UTCJul 12, 13:45 UTC1h 30m
2026-07-12 HUE40H - Jul 12, 10:20 UTCJul 12, 11:20 UTC1h 0m
2026-07-12 HUE40H - Jul 12, 08:01 UTCJul 12, 09:05 UTC1h 5m
2026-07-11 HUE40H MUC → TLN Jul 11, 14:40 UTCJul 11, 16:30 UTC1h 50m
2026-07-11 HUE40H INN → MUC Jul 11, 13:30 UTCJul 11, 13:55 UTC25m
2026-07-11 HUE40H - Jul 11, 09:45 UTCJul 11, 11:00 UTC1h 15m
2026-07-11 HUE40H - Jul 11, 07:45 UTCJul 11, 08:15 UTC30m
2026-07-10 HUE40H - Jul 10, 12:10 UTCJul 10, 14:10 UTC2h 0m
2026-07-10 HUE40H - Jul 10, 09:55 UTCJul 10, 11:20 UTC1h 25m
2026-07-10 HUE40H - Jul 10, 05:05 UTCJul 10, 07:20 UTC2h 15m
2026-07-09 HUE40H - Jul 9, 13:25 UTCJul 9, 14:40 UTC1h 15m
2026-07-09 HUE40H ZRH → LTT Jul 9, 10:05 UTCJul 9, 11:25 UTC1h 20m
2026-07-09 HUE40H - Jul 9, 06:10 UTCJul 9, 07:35 UTC1h 25m
2026-07-08 HUE40H BRN → LTT Jul 8, 13:05 UTCJul 8, 14:20 UTC1h 15m
2026-07-08 HUE40H ZRH → BRN Jul 8, 09:00 UTCJul 8, 09:20 UTC20m
2026-07-08 HUE40H - Jul 8, 07:25 UTCJul 8, 07:50 UTC25m
2026-07-07 HUE40H - Jul 7, 15:05 UTCJul 7, 15:50 UTC45m
2026-07-07 HUE40H - Jul 7, 11:40 UTCJul 7, 12:35 UTC55m
2026-07-07 HUE40H - Jul 7, 09:50 UTCJul 7, 10:45 UTC55m
2026-07-07 HUE40H - Jul 7, 07:20 UTCJul 7, 08:10 UTC50m
2026-07-06 HUE40H - Jul 6, 11:45 UTCJul 6, 13:35 UTC1h 50m
2026-07-06 HUE40H - Jul 6, 08:45 UTCJul 6, 10:20 UTC1h 35m
2026-07-06 HUE40H - Jul 6, 06:30 UTCJul 6, 07:55 UTC1h 25m
2026-07-05 HUE40H - Jul 5, 15:10 UTCJul 5, 16:25 UTC1h 15m
2026-07-05 HUE40H - Jul 5, 09:25 UTCJul 5, 11:45 UTC2h 20m
2026-07-05 HUE40H BRN → BQH Jul 5, 06:05 UTCJul 5, 08:10 UTC2h 5m
2026-07-04 HUE40H - Jul 4, 15:25 UTCJul 4, 16:30 UTC1h 5m
2026-07-04 HUE40H - Jul 4, 13:30 UTCJul 4, 14:40 UTC1h 10m
2026-07-04 HUE40H - Jul 4, 11:20 UTCJul 4, 11:55 UTC35m
2026-07-04 HUE40H - Jul 4, 09:40 UTCJul 4, 10:20 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-FUU page for operator, model, and routing details .

Mode-S 4B0F50 frequently asked

What is Mode-S code 4B0F50?
4B0F50 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-FUU.
Where is Mode-S 4B0F50 registered?
Mode-S code 4B0F50 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B0F50 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B0F50, octal 22607520, decimal 4,919,120.
What flights does 4B0F50 operate?
Mode-S 4B0F50 has broadcast 3 distinct callsigns, including HUE12H, HUE40H, HBFUU.