Apparatus

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sensors Mode-S transponder

4B1BCC

ICAO 24-bit transponder address · allocated to Switzerland

Hex
4B1BCC
Octal
22615714
Decimal
4,922,316
Country
CH
No current signal · last broadcast 1d ago
Flights observed
146
Distinct callsigns
1
Country
CH
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4B1BCC.

Country allocation

The ICAO 24-bit address 4B1BCC 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
HBKNS - 146 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 HBKNS - Jun 1, 17:00 UTCJun 1, 17:25 UTC25m
2026-06-01 HBKNS - Jun 1, 13:55 UTCJun 1, 15:25 UTC1h 30m
2026-06-01 HBKNS - Jun 1, 12:25 UTCJun 1, 13:05 UTC40m
2026-06-01 HBKNS - Jun 1, 09:55 UTCJun 1, 11:10 UTC1h 15m
2026-06-01 HBKNS - Jun 1, 08:05 UTCJun 1, 09:20 UTC1h 15m
2026-05-31 HBKNS - May 31, 10:30 UTCMay 31, 12:00 UTC1h 30m
2026-05-31 HBKNS - May 31, 08:25 UTCMay 31, 08:55 UTC30m
2026-05-30 HBKNS - May 30, 15:10 UTCMay 30, 15:20 UTC10m
2026-05-30 HBKNS - May 30, 14:50 UTCMay 30, 15:00 UTC10m
2026-05-30 HBKNS - May 30, 12:15 UTCMay 30, 13:05 UTC50m
2026-05-30 HBKNS - May 30, 10:30 UTCMay 30, 11:30 UTC1h 0m
2026-05-30 HBKNS - May 30, 07:35 UTCMay 30, 09:50 UTC2h 15m
2026-05-29 HBKNS - May 29, 17:15 UTCMay 29, 17:45 UTC30m
2026-05-29 HBKNS - May 29, 15:05 UTCMay 29, 15:35 UTC30m
2026-05-25 HBKNS - May 25, 13:00 UTCMay 25, 13:30 UTC30m
2026-05-25 HBKNS - May 25, 07:05 UTCMay 25, 09:35 UTC2h 30m
2026-05-24 HBKNS - May 24, 15:25 UTCMay 24, 18:00 UTC2h 35m
2026-05-24 HBKNS - May 24, 13:50 UTCMay 24, 14:25 UTC35m
2026-05-24 HBKNS - May 24, 12:15 UTCMay 24, 13:20 UTC1h 5m
2026-05-24 HBKNS - May 24, 10:10 UTCMay 24, 10:40 UTC30m
2026-05-24 HBKNS - May 24, 07:45 UTCMay 24, 08:10 UTC25m
2026-05-23 HBKNS - May 23, 13:45 UTCMay 23, 13:50 UTC5m
2026-05-23 HBKNS - May 23, 09:55 UTCMay 23, 10:55 UTC1h 0m
2026-05-23 HBKNS - May 23, 07:35 UTCMay 23, 08:05 UTC30m
2026-05-22 HBKNS - May 22, 14:55 UTCMay 22, 15:50 UTC55m
2026-05-22 HBKNS - May 22, 12:15 UTCMay 22, 12:50 UTC35m
2026-05-22 HBKNS - May 22, 09:25 UTCMay 22, 10:00 UTC35m
2026-05-22 HBKNS - May 22, 07:20 UTCMay 22, 07:50 UTC30m
2026-05-21 HBKNS - May 21, 16:50 UTCMay 21, 17:50 UTC1h 0m
2026-05-21 HBKNS - May 21, 15:20 UTCMay 21, 15:50 UTC30m
2026-05-21 HBKNS - May 21, 13:20 UTCMay 21, 13:50 UTC30m
2026-05-21 HBKNS - May 21, 12:20 UTCMay 21, 12:50 UTC30m
2026-05-21 HBKNS - May 21, 10:00 UTCMay 21, 10:45 UTC45m
2026-05-21 HBKNS - May 21, 07:20 UTCMay 21, 09:25 UTC2h 5m
2026-05-20 HBKNS - May 20, 17:25 UTCMay 20, 17:55 UTC30m
2026-05-20 HBKNS - May 20, 15:55 UTCMay 20, 16:20 UTC25m
2026-05-20 HBKNS - May 20, 14:40 UTCMay 20, 15:00 UTC20m
2026-05-20 HBKNS - May 20, 13:30 UTCMay 20, 13:50 UTC20m
2026-05-20 HBKNS - May 20, 12:20 UTCMay 20, 12:45 UTC25m
2026-05-20 HBKNS - May 20, 10:15 UTCMay 20, 11:45 UTC1h 30m
2026-05-20 HBKNS - May 20, 07:20 UTCMay 20, 08:50 UTC1h 30m
2026-05-19 HBKNS - May 19, 15:45 UTCMay 19, 15:55 UTC10m
2026-05-19 HBKNS - May 19, 14:50 UTCMay 19, 15:05 UTC15m
2026-05-19 HBKNS - May 19, 13:15 UTCMay 19, 13:45 UTC30m
2026-05-19 HBKNS - May 19, 12:10 UTCMay 19, 12:35 UTC25m
2026-05-19 HBKNS - May 19, 09:40 UTCMay 19, 10:15 UTC35m
2026-05-19 HBKNS - May 19, 08:00 UTCMay 19, 08:30 UTC30m
2026-05-18 HBKNS - May 18, 09:35 UTCMay 18, 09:45 UTC10m
2026-05-18 HBKNS - May 18, 07:55 UTCMay 18, 08:30 UTC35m
2026-05-17 HBKNS - May 17, 14:55 UTCMay 17, 16:01 UTC1h 5m

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.

Mode-S 4B1BCC frequently asked

What is Mode-S code 4B1BCC?
4B1BCC is an ICAO 24-bit transponder address. Allocated to Switzerland.
Where is Mode-S 4B1BCC registered?
Mode-S code 4B1BCC is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1BCC broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1BCC, octal 22615714, decimal 4,922,316.
What flights does 4B1BCC operate?
Mode-S 4B1BCC has broadcast 1 distinct callsign, including HBKNS.