Apparatus

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sensors Mode-S transponder

4B0C84

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-ETG · BRM AERO Bristell B23

Hex
4B0C84
Octal
22606204
Decimal
4,918,404
Country
CH
Tail
HB-ETG
Type
BR23
No current signal · last broadcast 18h ago
Flights observed
208
Distinct callsigns
1
Country
CH
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 4B0C84.

Country allocation

The ICAO 24-bit address 4B0C84 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
HBETG - 208 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 HBETG - Jul 17, 08:35 UTCJul 17, 09:35 UTC1h 0m
2026-07-16 HBETG - Jul 16, 15:40 UTCJul 16, 16:05 UTC25m
2026-07-16 HBETG - Jul 16, 14:20 UTCJul 16, 14:50 UTC30m
2026-07-15 HBETG - Jul 15, 09:15 UTCJul 15, 09:40 UTC25m
2026-07-15 HBETG - Jul 15, 09:05 UTCJul 15, 09:10 UTC5m
2026-07-15 HBETG - Jul 15, 07:15 UTCJul 15, 08:00 UTC45m
2026-07-14 HBETG - Jul 14, 12:05 UTCJul 14, 13:40 UTC1h 35m
2026-07-14 HBETG - Jul 14, 07:25 UTCJul 14, 08:05 UTC40m
2026-07-12 HBETG - Jul 12, 13:01 UTCJul 12, 13:35 UTC35m
2026-07-12 HBETG - Jul 12, 10:35 UTCJul 12, 11:20 UTC45m
2026-07-12 HBETG - Jul 12, 06:40 UTCJul 12, 08:20 UTC1h 40m
2026-07-11 HBETG - Jul 11, 13:10 UTCJul 11, 14:05 UTC55m
2026-07-11 HBETG - Jul 11, 12:00 UTCJul 11, 12:30 UTC30m
2026-07-11 HBETG - Jul 11, 09:30 UTCJul 11, 09:55 UTC25m
2026-06-29 HBETG - Jun 29, 08:14 UTCJun 29, 08:35 UTC20m
2026-06-29 HBETG - Jun 29, 07:34 UTCJun 29, 07:59 UTC25m
2026-06-29 HBETG - Jun 29, 06:40 UTCJun 29, 07:05 UTC25m
2026-06-28 HBETG - Jun 28, 14:09 UTCJun 28, 14:30 UTC20m
2026-06-28 HBETG - Jun 28, 13:34 UTCJun 28, 13:55 UTC20m
2026-06-28 HBETG - Jun 28, 13:00 UTCJun 28, 13:29 UTC30m
2026-06-28 HBETG - Jun 28, 12:25 UTCJun 28, 12:44 UTC20m
2026-06-28 HBETG - Jun 28, 11:50 UTCJun 28, 12:09 UTC20m
2026-06-28 HBETG - Jun 28, 09:25 UTCJun 28, 09:55 UTC30m
2026-06-27 HBETG - Jun 27, 09:24 UTCJun 27, 09:50 UTC25m
2026-06-27 HBETG - Jun 27, 08:49 UTCJun 27, 09:09 UTC20m
2026-06-27 HBETG - Jun 27, 08:10 UTCJun 27, 08:29 UTC20m
2026-06-27 HBETG - Jun 27, 07:34 UTCJun 27, 07:55 UTC20m
2026-06-26 HBETG - Jun 26, 11:09 UTCJun 26, 12:00 UTC50m
2026-06-26 HBETG - Jun 26, 09:10 UTCJun 26, 10:05 UTC55m
2026-06-26 HBETG - Jun 26, 07:10 UTCJun 26, 07:39 UTC30m
2026-06-26 HBETG - Jun 26, 05:35 UTCJun 26, 06:15 UTC40m
2026-06-25 HBETG - Jun 25, 18:34 UTCJun 25, 19:05 UTC30m
2026-06-25 HBETG - Jun 25, 16:45 UTCJun 25, 17:34 UTC50m
2026-06-25 HBETG - Jun 25, 13:24 UTCJun 25, 14:24 UTC1h 0m
2026-06-25 HBETG - Jun 25, 09:10 UTCJun 25, 09:29 UTC20m
2026-06-25 HBETG - Jun 25, 08:30 UTCJun 25, 08:45 UTC15m
2026-06-25 HBETG - Jun 25, 08:14 UTCJun 25, 08:24 UTC10m
2026-06-25 HBETG - Jun 25, 06:50 UTCJun 25, 07:30 UTC40m
2026-06-24 HBETG - Jun 24, 11:34 UTCJun 24, 12:25 UTC50m
2026-06-24 HBETG - Jun 24, 08:04 UTCJun 24, 09:24 UTC1h 20m
2026-06-19 HBETG - Jun 19, 09:24 UTCJun 19, 09:30 UTC5m
2026-06-18 HBETG - Jun 18, 09:15 UTCJun 18, 09:50 UTC35m
2026-06-18 HBETG - Jun 18, 06:00 UTCJun 18, 07:20 UTC1h 20m
2026-06-17 HBETG - Jun 17, 15:35 UTCJun 17, 16:20 UTC45m
2026-06-16 HBETG - Jun 16, 12:50 UTCJun 16, 13:30 UTC40m
2026-06-15 HBETG - Jun 15, 18:04 UTCJun 15, 18:29 UTC25m
2026-06-15 HBETG - Jun 15, 15:35 UTCJun 15, 16:15 UTC40m
2026-06-15 HBETG - Jun 15, 08:40 UTCJun 15, 09:15 UTC35m
2026-06-15 HBETG - Jun 15, 06:35 UTCJun 15, 07:20 UTC45m
2026-06-14 HBETG - Jun 14, 09:05 UTCJun 14, 09:40 UTC35m

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

Mode-S 4B0C84 frequently asked

What is Mode-S code 4B0C84?
4B0C84 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-ETG.
Where is Mode-S 4B0C84 registered?
Mode-S code 4B0C84 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B0C84 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B0C84, octal 22606204, decimal 4,918,404.
What flights does 4B0C84 operate?
Mode-S 4B0C84 has broadcast 1 distinct callsign, including HBETG.