Apparatus

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sensors Mode-S transponder

4B1B0E

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-KGK · BRM AERO Bristell B23

Hex
4B1B0E
Octal
22615416
Decimal
4,922,126
Country
CH
Tail
HB-KGK
Type
BR23
No current signal · last broadcast Apr 30, 06:55 UTC
Flights observed
45
Distinct callsigns
1
Country
CH
Last broadcast
Apr 30, 06:55 UTC

Last known position

Most recent position reported by Mode-S 4B1B0E.

Country allocation

The ICAO 24-bit address 4B1B0E 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
HBKGK - 45 2026-04-30

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-04-30 HBKGK BRN → BRN Apr 30, 06:45 UTCApr 30, 06:55 UTC10m
2026-04-29 HBKGK - Apr 29, 12:50 UTCApr 29, 13:20 UTC30m
2026-04-29 HBKGK - Apr 29, 11:15 UTCApr 29, 11:45 UTC30m
2026-04-29 HBKGK - Apr 29, 09:45 UTCApr 29, 10:30 UTC45m
2026-04-29 HBKGK - Apr 29, 08:34 UTCApr 29, 09:05 UTC31m
2026-04-29 HBKGK - Apr 29, 07:24 UTCApr 29, 08:10 UTC45m
2026-04-29 HBKGK - Apr 29, 06:05 UTCApr 29, 06:45 UTC40m
2026-04-28 HBKGK BRN → BRN Apr 28, 09:45 UTCApr 28, 10:10 UTC25m
2026-04-28 HBKGK BRN → BRN Apr 28, 09:05 UTCApr 28, 09:35 UTC30m
2026-04-28 HBKGK BRN → BRN Apr 28, 08:10 UTCApr 28, 08:40 UTC30m
2026-04-28 HBKGK - Apr 28, 07:35 UTCApr 28, 08:00 UTC25m
2026-04-28 HBKGK BRN → BRN Apr 28, 06:45 UTCApr 28, 07:10 UTC25m
2026-04-28 HBKGK BRN → BRN Apr 28, 06:15 UTCApr 28, 06:40 UTC25m
2026-04-27 HBKGK BRN → BRN Apr 27, 08:45 UTCApr 27, 09:30 UTC45m
2026-04-27 HBKGK - Apr 27, 07:35 UTCApr 27, 08:25 UTC50m
2026-04-27 HBKGK BRN → BRN Apr 27, 06:20 UTCApr 27, 07:10 UTC50m
2026-04-26 HBKGK - Apr 26, 12:55 UTCApr 26, 13:15 UTC20m
2026-04-26 HBKGK - Apr 26, 10:00 UTCApr 26, 10:15 UTC15m
2026-04-25 HBKGK BRN → BRN Apr 25, 09:25 UTCApr 25, 10:35 UTC1h 10m
2026-04-24 HBKGK BRN → BRN Apr 24, 08:55 UTCApr 24, 09:45 UTC50m
2026-04-24 HBKGK - Apr 24, 07:45 UTCApr 24, 08:35 UTC50m
2026-04-24 HBKGK BRN → BRN Apr 24, 06:25 UTCApr 24, 07:15 UTC50m
2026-04-23 HBKGK - Apr 23, 13:20 UTCApr 23, 14:00 UTC40m
2026-04-23 HBKGK BRN → BRN Apr 23, 12:10 UTCApr 23, 12:55 UTC45m
2026-04-23 HBKGK BRN → BRN Apr 23, 07:30 UTCApr 23, 08:15 UTC45m
2026-04-23 HBKGK BRN → BRN Apr 23, 06:15 UTCApr 23, 07:01 UTC45m
2026-04-22 HBKGK BRN → BRN Apr 22, 08:40 UTCApr 22, 09:30 UTC50m
2026-04-22 HBKGK - Apr 22, 07:25 UTCApr 22, 08:15 UTC50m
2026-04-22 HBKGK BRN → BRN Apr 22, 06:05 UTCApr 22, 06:50 UTC45m
2026-04-21 HBKGK - Apr 21, 15:55 UTCApr 21, 17:01 UTC1h 5m
2026-04-21 HBKGK - Apr 21, 14:55 UTCApr 21, 15:20 UTC25m
2026-04-21 HBKGK BRN → BRN Apr 21, 08:30 UTCApr 21, 09:10 UTC40m
2026-04-21 HBKGK - Apr 21, 07:25 UTCApr 21, 08:00 UTC35m
2026-04-21 HBKGK BRN → BRN Apr 21, 06:15 UTCApr 21, 06:55 UTC40m
2026-04-20 HBKGK BRN → BRN Apr 20, 14:15 UTCApr 20, 14:50 UTC35m
2026-04-20 HBKGK BRN → BRN Apr 20, 13:00 UTCApr 20, 13:30 UTC30m
2026-04-20 HBKGK BRN → BRN Apr 20, 11:55 UTCApr 20, 12:25 UTC30m
2026-04-17 HBKGK BRN → BRN Apr 17, 15:20 UTCApr 17, 15:40 UTC20m
2026-04-17 HBKGK BRN → BRN Apr 17, 15:10 UTCApr 17, 15:15 UTC5m
2026-04-17 HBKGK - Apr 17, 13:20 UTCApr 17, 14:10 UTC50m
2026-04-17 HBKGK - Apr 17, 12:35 UTCApr 17, 13:15 UTC40m
2026-04-16 HBKGK BRN → BRN Apr 16, 12:00 UTCApr 16, 12:45 UTC45m
2026-04-16 HBKGK BRN → BRN Apr 16, 08:04 UTCApr 16, 08:50 UTC45m
2026-04-15 HBKGK - Apr 15, 09:00 UTCApr 15, 09:35 UTC35m
2026-04-15 HBKGK - Apr 15, 08:50 UTCApr 15, 08:55 UTC5m

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

Mode-S 4B1B0E frequently asked

What is Mode-S code 4B1B0E?
4B1B0E is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-KGK.
Where is Mode-S 4B1B0E registered?
Mode-S code 4B1B0E is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1B0E broadcasting right now?
No active broadcast right now. Last signal was Apr 30, 06:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1B0E, octal 22615416, decimal 4,922,126.
What flights does 4B1B0E operate?
Mode-S 4B1B0E has broadcast 1 distinct callsign, including HBKGK.