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sensors Mode-S transponder

4B1B12

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-KGO · BRM AERO NG-5/6 Bristell

Hex
4B1B12
Octal
22615422
Decimal
4,922,130
Country
CH
Tail
HB-KGO
Type
NG5
Broadcasting now · callsign HBKGO · 2,300 ft
Flights observed
173
Distinct callsigns
1
Country
CH
Last broadcast
15h ago

Current position

4B1B12 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B1B12 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
HBKGO - 173 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 HBKGO BRN → BRN Jul 13, 14:15 UTCJul 13, 15:00 UTC45m
2026-07-13 HBKGO - Jul 13, 13:10 UTCJul 13, 13:50 UTC40m
2026-07-13 HBKGO BRN → BRN Jul 13, 11:55 UTCJul 13, 12:35 UTC40m
2026-07-13 HBKGO - Jul 13, 07:55 UTCJul 13, 08:15 UTC20m
2026-07-13 HBKGO BRN → BRN Jul 13, 07:01 UTCJul 13, 07:20 UTC20m
2026-07-12 HBKGO BRN → BRN Jul 12, 17:35 UTCJul 12, 18:30 UTC55m
2026-07-12 HBKGO BRN → BRN Jul 12, 11:40 UTCJul 12, 13:05 UTC1h 25m
2026-07-12 HBKGO - Jul 12, 09:10 UTCJul 12, 09:50 UTC40m
2026-07-12 HBKGO - Jul 12, 08:01 UTCJul 12, 08:25 UTC25m
2026-07-11 HBKGO - Jul 11, 12:30 UTCJul 11, 12:50 UTC20m
2026-07-11 HBKGO - Jul 11, 08:45 UTCJul 11, 11:30 UTC2h 45m
2026-07-11 HBKGO - Jul 11, 07:30 UTCJul 11, 08:01 UTC30m
2026-07-10 HBKGO BRN → BRN Jul 10, 12:50 UTCJul 10, 13:15 UTC25m
2026-07-10 HBKGO - Jul 10, 09:50 UTCJul 10, 10:15 UTC25m
2026-07-10 HBKGO - Jul 10, 09:00 UTCJul 10, 09:15 UTC15m
2026-07-10 HBKGO - Jul 10, 06:10 UTCJul 10, 06:40 UTC30m
2026-07-09 HBKGO - Jul 9, 10:10 UTCJul 9, 10:15 UTC5m
2026-07-09 HBKGO BRN → BRN Jul 9, 09:50 UTCJul 9, 09:55 UTC5m
2026-07-09 HBKGO BRN → BRN Jul 9, 07:05 UTCJul 9, 07:45 UTC40m
2026-07-08 HBKGO BRN → BRN Jul 8, 16:20 UTCJul 8, 16:50 UTC30m
2026-07-08 HBKGO BRN → BRN Jul 8, 15:10 UTCJul 8, 15:50 UTC40m
2026-07-08 HBKGO BRN → BRN Jul 8, 09:05 UTCJul 8, 09:50 UTC45m
2026-07-08 HBKGO BRN → BRN Jul 8, 06:30 UTCJul 8, 07:05 UTC35m
2026-07-07 HBKGO - Jul 7, 13:20 UTCJul 7, 13:55 UTC35m
2026-07-07 HBKGO - Jul 7, 11:15 UTCJul 7, 12:00 UTC45m
2026-07-07 HBKGO BRN → BRN Jul 7, 09:10 UTCJul 7, 09:40 UTC30m
2026-07-07 HBKGO BRN → BRN Jul 7, 07:30 UTCJul 7, 07:50 UTC20m
2026-07-07 HBKGO BRN → BRN Jul 7, 07:15 UTCJul 7, 07:20 UTC5m
2026-07-06 HBKGO - Jul 6, 13:30 UTCJul 6, 13:55 UTC25m
2026-07-06 HBKGO - Jul 6, 12:15 UTCJul 6, 12:40 UTC25m
2026-07-06 HBKGO - Jul 6, 09:20 UTCJul 6, 09:55 UTC35m
2026-07-06 HBKGO - Jul 6, 07:50 UTCJul 6, 08:10 UTC20m
2026-07-04 HBKGO - Jul 4, 12:10 UTCJul 4, 13:00 UTC50m
2026-07-04 HBKGO - Jul 4, 07:45 UTCJul 4, 08:25 UTC40m
2026-07-03 HBKGO - Jul 3, 14:45 UTCJul 3, 17:10 UTC2h 25m
2026-07-03 HBKGO - Jul 3, 11:00 UTCJul 3, 13:10 UTC2h 10m
2026-07-02 HBKGO - Jul 2, 14:50 UTCJul 2, 15:25 UTC35m
2026-07-02 HBKGO - Jul 2, 12:40 UTCJul 2, 13:15 UTC35m
2026-07-02 HBKGO - Jul 2, 10:05 UTCJul 2, 10:20 UTC15m
2026-07-02 HBKGO - Jul 2, 06:15 UTCJul 2, 07:20 UTC1h 5m
2026-06-28 HBKGO BRN → BRN Jun 28, 08:05 UTCJun 28, 09:10 UTC1h 5m
2026-06-27 HBKGO BRN → BRN Jun 27, 09:50 UTCJun 27, 10:50 UTC1h 0m
2026-06-27 HBKGO BRN → BRN Jun 27, 07:55 UTCJun 27, 08:20 UTC25m
2026-06-27 HBKGO BRN → BRN Jun 27, 06:19 UTCJun 27, 06:59 UTC40m
2026-06-26 HBKGO BRN → BRN Jun 26, 11:49 UTCJun 26, 12:50 UTC1h 0m
2026-06-26 HBKGO BRN → BRN Jun 26, 07:24 UTCJun 26, 08:15 UTC50m
2026-06-25 HBKGO BRN → BRN Jun 25, 17:39 UTCJun 25, 18:24 UTC45m
2026-06-25 HBKGO BRN → BRN Jun 25, 08:20 UTCJun 25, 08:34 UTC15m
2026-06-25 HBKGO BRN → BRN Jun 25, 08:04 UTCJun 25, 08:09 UTC5m
2026-06-25 HBKGO BRN → BRN Jun 25, 06:44 UTCJun 25, 07:00 UTC15m

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

Mode-S 4B1B12 frequently asked

What is Mode-S code 4B1B12?
4B1B12 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-KGO.
Where is Mode-S 4B1B12 registered?
Mode-S code 4B1B12 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1B12 broadcasting right now?
Yes. Mode-S 4B1B12 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1B12, octal 22615422, decimal 4,922,130.
What flights does 4B1B12 operate?
Mode-S 4B1B12 has broadcast 1 distinct callsign, including HBKGO.