Apparatus

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sensors Mode-S transponder

4B303A

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-SGW · AQUILA A-210

Hex
4B303A
Octal
22630072
Decimal
4,927,546
Country
CH
Tail
HB-SGW
Type
A210
No current signal · last broadcast 1d ago
Flights observed
179
Distinct callsigns
1
Country
CH
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4B303A.

Country allocation

The ICAO 24-bit address 4B303A 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
HBSGW - 179 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 HBSGW - Jul 16, 08:40 UTCJul 16, 09:15 UTC35m
2026-07-16 HBSGW - Jul 16, 06:05 UTCJul 16, 07:00 UTC55m
2026-07-14 HBSGW - Jul 14, 15:25 UTCJul 14, 15:35 UTC10m
2026-07-14 HBSGW - Jul 14, 15:10 UTCJul 14, 15:20 UTC10m
2026-07-14 HBSGW - Jul 14, 14:55 UTCJul 14, 15:05 UTC10m
2026-07-14 HBSGW - Jul 14, 11:55 UTCJul 14, 12:55 UTC1h 0m
2026-07-14 HBSGW - Jul 14, 10:00 UTCJul 14, 10:25 UTC25m
2026-07-14 HBSGW - Jul 14, 09:05 UTCJul 14, 09:20 UTC15m
2026-07-14 HBSGW - Jul 14, 07:25 UTCJul 14, 08:35 UTC1h 10m
2026-07-13 HBSGW - Jul 13, 14:35 UTCJul 13, 16:05 UTC1h 30m
2026-07-12 HBSGW - Jul 12, 06:10 UTCJul 12, 08:20 UTC2h 10m
2026-07-10 HBSGW - Jul 10, 12:20 UTCJul 10, 13:55 UTC1h 35m
2026-07-10 HBSGW - Jul 10, 08:45 UTCJul 10, 10:00 UTC1h 15m
2026-07-10 HBSGW - Jul 10, 06:55 UTCJul 10, 07:45 UTC50m
2026-07-09 HBSGW - Jul 9, 14:10 UTCJul 9, 14:55 UTC45m
2026-07-09 HBSGW - Jul 9, 12:15 UTCJul 9, 13:15 UTC1h 0m
2026-07-09 HBSGW - Jul 9, 09:45 UTCJul 9, 09:50 UTC5m
2026-07-09 HBSGW - Jul 9, 09:15 UTCJul 9, 09:40 UTC25m
2026-07-08 HBSGW - Jul 8, 07:25 UTCJul 8, 07:35 UTC10m
2026-07-08 HBSGW - Jul 8, 07:00 UTCJul 8, 07:20 UTC20m
2026-07-07 HBSGW - Jul 7, 08:15 UTCJul 7, 08:45 UTC30m
2026-07-07 HBSGW - Jul 7, 06:50 UTCJul 7, 07:30 UTC40m
2026-07-06 HBSGW - Jul 6, 14:15 UTCJul 6, 15:15 UTC1h 0m
2026-07-06 HBSGW - Jul 6, 12:10 UTCJul 6, 13:00 UTC50m
2026-07-06 HBSGW - Jul 6, 09:00 UTCJul 6, 09:50 UTC50m
2026-07-05 HBSGW - Jul 5, 15:15 UTCJul 5, 16:05 UTC50m
2026-07-05 HBSGW - Jul 5, 13:30 UTCJul 5, 13:55 UTC25m
2026-07-05 HBSGW - Jul 5, 12:20 UTCJul 5, 12:45 UTC25m
2026-07-04 HBSGW - Jul 4, 15:00 UTCJul 4, 15:35 UTC35m
2026-07-04 HBSGW - Jul 4, 13:30 UTCJul 4, 13:40 UTC10m
2026-07-04 HBSGW - Jul 4, 12:45 UTCJul 4, 12:55 UTC10m
2026-07-04 HBSGW - Jul 4, 06:35 UTCJul 4, 07:15 UTC40m
2026-07-03 HBSGW - Jul 3, 09:10 UTCJul 3, 09:45 UTC35m
2026-07-03 HBSGW - Jul 3, 07:40 UTCJul 3, 08:25 UTC45m
2026-07-03 HBSGW - Jul 3, 06:15 UTCJul 3, 07:05 UTC50m
2026-07-02 HBSGW - Jul 2, 14:15 UTCJul 2, 14:50 UTC35m
2026-07-02 HBSGW - Jul 2, 08:55 UTCJul 2, 09:10 UTC15m
2026-07-02 HBSGW - Jul 2, 07:20 UTCJul 2, 07:25 UTC5m
2026-07-02 HBSGW - Jul 2, 07:00 UTCJul 2, 07:15 UTC15m
2026-06-30 HBSGW - Jun 30, 13:40 UTCJun 30, 14:20 UTC40m
2026-06-30 HBSGW - Jun 30, 11:55 UTCJun 30, 12:35 UTC40m
2026-06-30 HBSGW - Jun 30, 06:30 UTCJun 30, 07:25 UTC55m
2026-06-27 HBSGW - Jun 27, 08:35 UTCJun 27, 08:39 UTC5m
2026-06-27 HBSGW - Jun 27, 07:59 UTCJun 27, 08:29 UTC30m
2026-06-27 HBSGW - Jun 27, 06:40 UTCJun 27, 06:44 UTC5m
2026-06-26 HBSGW - Jun 26, 13:49 UTCJun 26, 14:44 UTC55m
2026-06-26 HBSGW - Jun 26, 12:24 UTCJun 26, 13:04 UTC40m
2026-06-26 HBSGW - Jun 26, 07:39 UTCJun 26, 08:50 UTC1h 10m
2026-06-25 HBSGW - Jun 25, 12:40 UTCJun 25, 13:20 UTC40m
2026-06-25 HBSGW - Jun 25, 08:45 UTCJun 25, 09:25 UTC40m

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

Mode-S 4B303A frequently asked

What is Mode-S code 4B303A?
4B303A is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-SGW.
Where is Mode-S 4B303A registered?
Mode-S code 4B303A is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B303A 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 4B303A, octal 22630072, decimal 4,927,546.
What flights does 4B303A operate?
Mode-S 4B303A has broadcast 1 distinct callsign, including HBSGW.