Apparatus

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sensors Mode-S transponder

4B06F4

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-CQM · CESSNA 172 Skyhawk

Hex
4B06F4
Octal
22603364
Decimal
4,916,980
Country
CH
Tail
HB-CQM
Type
C172
No current signal · last broadcast 2d ago
Flights observed
103
Distinct callsigns
1
Country
CH
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4B06F4.

Country allocation

The ICAO 24-bit address 4B06F4 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
HBCQM - 103 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 HBCQM - Jul 15, 08:40 UTCJul 15, 09:55 UTC1h 15m
2026-07-15 HBCQM - Jul 15, 06:10 UTCJul 15, 07:15 UTC1h 5m
2026-07-14 HBCQM - Jul 14, 09:10 UTCJul 14, 11:05 UTC1h 55m
2026-07-14 HBCQM - Jul 14, 06:30 UTCJul 14, 07:15 UTC45m
2026-07-13 HBCQM - Jul 13, 15:25 UTCJul 13, 16:00 UTC35m
2026-07-13 HBCQM - Jul 13, 13:45 UTCJul 13, 14:30 UTC45m
2026-07-13 HBCQM - Jul 13, 08:05 UTCJul 13, 08:45 UTC40m
2026-07-13 HBCQM - Jul 13, 06:20 UTCJul 13, 06:35 UTC15m
2026-07-10 HBCQM - Jul 10, 09:30 UTCJul 10, 10:30 UTC1h 0m
2026-07-09 HBCQM - Jul 9, 08:55 UTCJul 9, 09:15 UTC20m
2026-07-08 HBCQM - Jul 8, 07:15 UTCJul 8, 08:10 UTC55m
2026-07-06 HBCQM - Jul 6, 08:40 UTCJul 6, 09:40 UTC1h 0m
2026-07-05 HBCQM - Jul 5, 07:35 UTCJul 5, 08:30 UTC55m
2026-07-05 HBCQM - Jul 5, 07:10 UTCJul 5, 07:30 UTC20m
2026-07-04 HBCQM - Jul 4, 15:00 UTCJul 4, 15:50 UTC50m
2026-07-04 HBCQM - Jul 4, 13:05 UTCJul 4, 14:20 UTC1h 15m
2026-07-04 HBCQM - Jul 4, 04:20 UTCJul 4, 05:05 UTC45m
2026-07-03 HBCQM - Jul 3, 15:50 UTCJul 3, 16:40 UTC50m
2026-07-03 HBCQM - Jul 3, 07:00 UTCJul 3, 07:25 UTC25m
2026-06-29 HBCQM - Jun 29, 10:55 UTCJun 29, 11:29 UTC35m
2026-06-27 HBCQM - Jun 27, 07:15 UTCJun 27, 08:25 UTC1h 10m
2026-06-26 HBCQM - Jun 26, 08:40 UTCJun 26, 09:24 UTC45m
2026-06-26 HBCQM - Jun 26, 07:00 UTCJun 26, 07:30 UTC30m
2026-06-26 HBCQM - Jun 26, 06:29 UTCJun 26, 06:50 UTC20m
2026-06-25 HBCQM - Jun 25, 17:44 UTCJun 25, 18:45 UTC1h 0m
2026-06-25 HBCQM - Jun 25, 14:09 UTCJun 25, 14:59 UTC50m
2026-06-25 HBCQM - Jun 25, 08:45 UTCJun 25, 09:25 UTC40m
2026-06-25 HBCQM - Jun 25, 06:50 UTCJun 25, 07:34 UTC45m
2026-06-24 HBCQM - Jun 24, 14:29 UTCJun 24, 15:35 UTC1h 5m
2026-06-24 HBCQM - Jun 24, 08:49 UTCJun 24, 09:49 UTC1h 0m
2026-06-24 HBCQM - Jun 24, 06:35 UTCJun 24, 07:24 UTC50m
2026-06-23 HBCQM - Jun 23, 13:59 UTCJun 23, 15:04 UTC1h 5m
2026-06-23 HBCQM - Jun 23, 12:25 UTCJun 23, 13:15 UTC50m
2026-06-23 HBCQM - Jun 23, 09:14 UTCJun 23, 10:04 UTC50m
2026-06-23 HBCQM - Jun 23, 07:05 UTCJun 23, 08:00 UTC55m
2026-06-19 HBCQM - Jun 19, 12:59 UTCJun 19, 14:34 UTC1h 35m
2026-06-18 HBCQM - Jun 18, 17:00 UTCJun 18, 17:50 UTC50m
2026-06-18 HBCQM - Jun 18, 15:25 UTCJun 18, 16:15 UTC50m
2026-06-17 HBCQM - Jun 17, 17:55 UTCJun 17, 18:56 UTC1h 0m
2026-06-17 HBCQM - Jun 17, 16:35 UTCJun 17, 17:15 UTC40m
2026-06-17 HBCQM - Jun 17, 09:45 UTCJun 17, 10:55 UTC1h 10m
2026-06-16 HBCQM - Jun 16, 08:49 UTCJun 16, 09:50 UTC1h 0m
2026-06-16 HBCQM - Jun 16, 06:40 UTCJun 16, 07:30 UTC50m
2026-06-15 HBCQM - Jun 15, 12:39 UTCJun 15, 13:25 UTC45m
2026-06-12 HBCQM - Jun 12, 17:05 UTCJun 12, 17:50 UTC45m
2026-06-12 HBCQM - Jun 12, 15:05 UTCJun 12, 15:45 UTC40m
2026-06-11 HBCQM - Jun 11, 18:05 UTCJun 11, 19:05 UTC1h 0m
2026-06-11 HBCQM - Jun 11, 11:45 UTCJun 11, 12:30 UTC45m
2026-06-11 HBCQM - Jun 11, 08:30 UTCJun 11, 09:20 UTC50m
2026-05-26 HBCQM - May 26, 14:30 UTCMay 26, 15:09 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-CQM page for operator, model, and routing details .

Mode-S 4B06F4 frequently asked

What is Mode-S code 4B06F4?
4B06F4 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-CQM.
Where is Mode-S 4B06F4 registered?
Mode-S code 4B06F4 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B06F4 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B06F4, octal 22603364, decimal 4,916,980.
What flights does 4B06F4 operate?
Mode-S 4B06F4 has broadcast 1 distinct callsign, including HBCQM.