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sensors Mode-S transponder

4B3811

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-VGB · PILATUS PC-24

Hex
4B3811
Octal
22634021
Decimal
4,929,553
Country
CH
Tail
HB-VGB
Type
PC24
No current signal · last broadcast 13h ago
Flights observed
133
Distinct callsigns
3
Country
CH
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 4B3811.

Country allocation

The ICAO 24-bit address 4B3811 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
CAZ101 - 127 2026-07-17
CAZ102 - 5 2026-07-09
HBVGB - 1 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CAZ101 ZRH → ANR Jul 17, 12:30 UTCJul 17, 13:29 UTC1h 0m
2026-07-15 CAZ101 - Jul 15, 11:40 UTCJul 15, 12:40 UTC1h 0m
2026-07-15 CAZ101 - Jul 15, 06:25 UTCJul 15, 07:30 UTC1h 5m
2026-07-14 CAZ101 - Jul 14, 12:05 UTCJul 14, 13:15 UTC1h 10m
2026-07-14 CAZ101 ZRH → LCY Jul 14, 09:20 UTCJul 14, 10:45 UTC1h 25m
2026-07-13 CAZ101 - Jul 13, 11:50 UTCJul 13, 13:15 UTC1h 25m
2026-07-13 CAZ101 ZRH → FAB Jul 13, 07:10 UTCJul 13, 08:30 UTC1h 20m
2026-07-11 CAZ101 - Jul 11, 18:35 UTCJul 11, 19:50 UTC1h 15m
2026-07-11 CAZ101 - Jul 11, 11:50 UTCJul 11, 13:00 UTC1h 10m
2026-07-10 CAZ101 BZO → ZRH Jul 10, 17:25 UTCJul 10, 18:00 UTC35m
2026-07-10 CAZ101 - Jul 10, 15:35 UTCJul 10, 16:50 UTC1h 15m
2026-07-10 CAZ101 DBV → LBG Jul 10, 11:15 UTCJul 10, 13:40 UTC2h 25m
2026-07-09 CAZ102 - Jul 9, 15:25 UTCJul 9, 17:50 UTC2h 25m
2026-07-09 CAZ102 - Jul 9, 12:50 UTCJul 9, 14:20 UTC1h 30m
2026-07-09 CAZ101 - Jul 9, 09:45 UTCJul 9, 10:45 UTC1h 0m
2026-07-09 CAZ101 - Jul 9, 07:25 UTCJul 9, 08:15 UTC50m
2026-07-08 CAZ101 - Jul 8, 16:10 UTCJul 8, 16:40 UTC30m
2026-07-08 CAZ101 - Jul 8, 14:55 UTCJul 8, 15:25 UTC30m
2026-07-07 CAZ101 - Jul 7, 14:40 UTCJul 7, 15:25 UTC45m
2026-07-07 CAZ101 - Jul 7, 10:45 UTCJul 7, 11:15 UTC30m
2026-07-07 CAZ101 MAD → SXB Jul 7, 08:00 UTCJul 7, 10:00 UTC2h 0m
2026-07-06 CAZ101 - Jul 6, 08:40 UTCJul 6, 10:40 UTC2h 0m
2026-07-06 CAZ101 - Jul 6, 07:00 UTCJul 6, 07:30 UTC30m
2026-07-05 CAZ102 - Jul 5, 15:55 UTCJul 5, 17:40 UTC1h 45m
2026-07-05 CAZ101 ATH → BRI Jul 5, 12:30 UTCJul 5, 13:45 UTC1h 15m
2026-07-05 CAZ101 GRS → ATH Jul 5, 09:25 UTCJul 5, 11:10 UTC1h 45m
2026-07-05 CAZ101 - Jul 5, 06:50 UTCJul 5, 07:30 UTC40m
2026-07-04 CAZ101 - Jul 4, 15:30 UTCJul 4, 16:15 UTC45m
2026-07-04 CAZ101 - Jul 4, 13:40 UTCJul 4, 13:55 UTC15m
2026-07-04 CAZ101 - Jul 4, 11:40 UTCJul 4, 13:05 UTC1h 25m
2026-07-04 CAZ101 - Jul 4, 08:40 UTCJul 4, 09:30 UTC50m
2026-07-04 CAZ102 - Jul 4, 06:05 UTCJul 4, 07:25 UTC1h 20m
2026-07-03 CAZ101 - Jul 3, 15:35 UTCJul 3, 16:45 UTC1h 10m
2026-07-03 CAZ101 BGO → BQH Jul 3, 12:35 UTCJul 3, 14:25 UTC1h 50m
2026-07-03 CAZ101 ZRH → BGO Jul 3, 08:20 UTCJul 3, 10:45 UTC2h 25m
2026-07-02 CAZ101 - Jul 2, 17:20 UTCJul 2, 18:10 UTC50m
2026-07-02 CAZ101 - Jul 2, 09:25 UTCJul 2, 10:35 UTC1h 10m
2026-06-30 CAZ101 - Jun 30, 17:00 UTCJun 30, 17:55 UTC55m
2026-06-30 CAZ101 - Jun 30, 08:20 UTCJun 30, 10:00 UTC1h 40m
2026-06-30 CAZ101 - Jun 30, 06:00 UTCJun 30, 06:50 UTC50m
2026-06-29 CAZ101 - Jun 29, 15:04 UTCJun 29, 16:19 UTC1h 15m
2026-06-29 CAZ101 - Jun 29, 12:39 UTCJun 29, 13:54 UTC1h 15m
2026-06-28 CAZ101 FAB → ZRH Jun 28, 16:09 UTCJun 28, 18:00 UTC1h 50m
2026-06-28 CAZ101 TLS → FAB Jun 28, 10:10 UTCJun 28, 11:29 UTC1h 20m
2026-06-27 CAZ101 - Jun 27, 13:20 UTCJun 27, 14:20 UTC1h 0m
2026-06-27 CAZ101 - Jun 27, 10:10 UTCJun 27, 11:55 UTC1h 45m
2026-06-27 CAZ101 TLS → GVA Jun 27, 08:05 UTCJun 27, 09:00 UTC55m
2026-06-26 CAZ101 - Jun 26, 11:20 UTCJun 26, 12:50 UTC1h 30m
2026-06-26 CAZ101 ACH → FAB Jun 26, 08:10 UTCJun 26, 09:45 UTC1h 35m
2026-06-25 CAZ101 - Jun 25, 12:40 UTCJun 25, 13:40 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-VGB page for operator, model, and routing details .

Mode-S 4B3811 frequently asked

What is Mode-S code 4B3811?
4B3811 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-VGB.
Where is Mode-S 4B3811 registered?
Mode-S code 4B3811 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B3811 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B3811, octal 22634021, decimal 4,929,553.
What flights does 4B3811 operate?
Mode-S 4B3811 has broadcast 3 distinct callsigns, including CAZ101, CAZ102, HBVGB.