Apparatus

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sensors Mode-S transponder

4B1BB6

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-KMW · TECNAM Twenty-Ten

Hex
4B1BB6
Octal
22615666
Decimal
4,922,294
Country
CH
Tail
HB-KMW
Type
TWEN
No current signal · last broadcast 15h ago
Flights observed
163
Distinct callsigns
1
Country
CH
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4B1BB6.

Country allocation

The ICAO 24-bit address 4B1BB6 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
HBKMW - 163 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 HBKMW - Jul 17, 14:35 UTCJul 17, 14:44 UTC10m
2026-07-17 HBKMW - Jul 17, 13:05 UTCJul 17, 13:20 UTC15m
2026-07-17 HBKMW - Jul 17, 09:10 UTCJul 17, 09:50 UTC40m
2026-07-17 HBKMW - Jul 17, 08:04 UTCJul 17, 08:35 UTC30m
2026-07-16 HBKMW - Jul 16, 16:44 UTCJul 16, 17:20 UTC35m
2026-07-16 HBKMW - Jul 16, 15:40 UTCJul 16, 16:00 UTC20m
2026-07-16 HBKMW - Jul 16, 13:54 UTCJul 16, 14:10 UTC15m
2026-07-16 HBKMW - Jul 16, 12:09 UTCJul 16, 12:30 UTC20m
2026-07-16 HBKMW LUG → LUG Jul 16, 07:20 UTCJul 16, 08:10 UTC50m
2026-07-15 HBKMW - Jul 15, 09:30 UTCJul 15, 10:00 UTC30m
2026-07-14 HBKMW - Jul 14, 12:20 UTCJul 14, 12:40 UTC20m
2026-07-13 HBKMW - Jul 13, 15:50 UTCJul 13, 17:40 UTC1h 50m
2026-07-13 HBKMW - Jul 13, 13:50 UTCJul 13, 15:00 UTC1h 10m
2026-07-13 HBKMW - Jul 13, 12:10 UTCJul 13, 12:25 UTC15m
2026-07-13 HBKMW LUG → LUG Jul 13, 07:15 UTCJul 13, 07:45 UTC30m
2026-07-12 HBKMW - Jul 12, 11:55 UTCJul 12, 13:35 UTC1h 40m
2026-07-12 HBKMW - Jul 12, 08:35 UTCJul 12, 10:01 UTC1h 25m
2026-07-11 HBKMW - Jul 11, 07:05 UTCJul 11, 08:20 UTC1h 15m
2026-07-10 HBKMW - Jul 10, 07:00 UTCJul 10, 07:25 UTC25m
2026-07-09 HBKMW LUG → LUG Jul 9, 12:40 UTCJul 9, 13:35 UTC55m
2026-07-07 HBKMW - Jul 7, 07:00 UTCJul 7, 07:40 UTC40m
2026-07-06 HBKMW - Jul 6, 13:30 UTCJul 6, 13:40 UTC10m
2026-07-06 HBKMW - Jul 6, 12:40 UTCJul 6, 12:55 UTC15m
2026-07-05 HBKMW - Jul 5, 16:15 UTCJul 5, 16:45 UTC30m
2026-07-05 HBKMW - Jul 5, 07:25 UTCJul 5, 09:20 UTC1h 55m
2026-07-04 HBKMW - Jul 4, 14:40 UTCJul 4, 15:20 UTC40m
2026-07-04 HBKMW LUG → LUG Jul 4, 09:25 UTCJul 4, 09:55 UTC30m
2026-07-04 HBKMW - Jul 4, 07:15 UTCJul 4, 07:35 UTC20m
2026-07-02 HBKMW - Jul 2, 11:35 UTCJul 2, 12:25 UTC50m
2026-07-02 HBKMW - Jul 2, 09:50 UTCJul 2, 11:00 UTC1h 10m
2026-07-01 HBKMW - Jul 1, 09:05 UTCJul 1, 09:20 UTC15m
2026-07-01 HBKMW - Jul 1, 07:30 UTCJul 1, 07:40 UTC10m
2026-06-30 HBKMW - Jun 30, 17:05 UTCJun 30, 17:40 UTC35m
2026-06-30 HBKMW - Jun 30, 12:05 UTCJun 30, 12:50 UTC45m
2026-06-29 HBKMW - Jun 29, 09:44 UTCJun 29, 11:35 UTC1h 50m
2026-06-27 HBKMW - Jun 27, 09:00 UTCJun 27, 10:50 UTC1h 50m
2026-06-25 HBKMW - Jun 25, 13:05 UTCJun 25, 13:29 UTC25m
2026-06-24 HBKMW - Jun 24, 15:14 UTCJun 24, 15:44 UTC30m
2026-06-24 HBKMW - Jun 24, 14:20 UTCJun 24, 14:39 UTC20m
2026-06-24 HBKMW - Jun 24, 13:24 UTCJun 24, 13:44 UTC20m
2026-06-24 HBKMW - Jun 24, 09:00 UTCJun 24, 09:34 UTC35m
2026-06-23 HBKMW - Jun 23, 12:55 UTCJun 23, 13:05 UTC10m
2026-06-23 HBKMW LUG → LUG Jun 23, 09:24 UTCJun 23, 09:54 UTC30m
2026-06-21 HBKMW - Jun 21, 15:05 UTCJun 21, 16:59 UTC1h 55m
2026-06-21 HBKMW - Jun 21, 08:15 UTCJun 21, 09:55 UTC1h 40m
2026-06-20 HBKMW - Jun 20, 09:05 UTCJun 20, 09:44 UTC40m
2026-06-19 HBKMW - Jun 19, 10:35 UTCJun 19, 11:39 UTC1h 5m
2026-06-19 HBKMW - Jun 19, 08:04 UTCJun 19, 08:50 UTC45m
2026-06-14 HBKMW - Jun 14, 16:55 UTCJun 14, 17:10 UTC15m
2026-06-14 HBKMW - Jun 14, 14:50 UTCJun 14, 15:50 UTC1h 0m

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

Mode-S 4B1BB6 frequently asked

What is Mode-S code 4B1BB6?
4B1BB6 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-KMW.
Where is Mode-S 4B1BB6 registered?
Mode-S code 4B1BB6 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1BB6 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1BB6, octal 22615666, decimal 4,922,294.
What flights does 4B1BB6 operate?
Mode-S 4B1BB6 has broadcast 1 distinct callsign, including HBKMW.