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sensors Mode-S transponder

403BE0

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-BWXB · FOURNIER RF-6

Hex
403BE0
Octal
20035740
Decimal
4,209,632
Country
GB
Tail
G-BWXB
Type
RF6
No current signal · last broadcast 2d ago
Flights observed
109
Distinct callsigns
1
Country
GB
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 403BE0.

Country allocation

The ICAO 24-bit address 403BE0 falls within the block assigned to United Kingdom (GB) by ICAO Annex 10, Volume III. Every aircraft registered in United Kingdom 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
GBWXB - 109 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 GBWXB - Jul 24, 15:35 UTCJul 24, 16:05 UTC30m
2026-07-24 GBWXB - Jul 24, 14:35 UTCJul 24, 14:50 UTC15m
2026-07-24 GBWXB - Jul 24, 12:55 UTCJul 24, 13:20 UTC25m
2026-07-24 GBWXB - Jul 24, 11:10 UTCJul 24, 11:35 UTC25m
2026-07-24 GBWXB - Jul 24, 10:05 UTCJul 24, 10:25 UTC20m
2026-07-23 GBWXB - Jul 23, 12:55 UTCJul 23, 13:20 UTC25m
2026-07-23 GBWXB - Jul 23, 10:10 UTCJul 23, 10:35 UTC25m
2026-07-21 GBWXB - Jul 21, 12:45 UTCJul 21, 13:10 UTC25m
2026-07-21 GBWXB - Jul 21, 09:30 UTCJul 21, 10:15 UTC45m
2026-07-20 GBWXB - Jul 20, 13:30 UTCJul 20, 14:20 UTC50m
2026-07-20 GBWXB - Jul 20, 11:10 UTCJul 20, 12:55 UTC1h 45m
2026-07-20 GBWXB - Jul 20, 09:45 UTCJul 20, 10:35 UTC50m
2026-07-18 GBWXB - Jul 18, 14:05 UTCJul 18, 14:25 UTC20m
2026-07-18 GBWXB - Jul 18, 13:00 UTCJul 18, 13:25 UTC25m
2026-07-18 GBWXB - Jul 18, 11:20 UTCJul 18, 11:50 UTC30m
2026-07-18 GBWXB - Jul 18, 10:20 UTCJul 18, 10:45 UTC25m
2026-07-17 GBWXB - Jul 17, 12:55 UTCJul 17, 13:15 UTC20m
2026-07-17 GBWXB - Jul 17, 10:40 UTCJul 17, 11:04 UTC25m
2026-07-16 GBWXB - Jul 16, 13:05 UTCJul 16, 13:30 UTC25m
2026-07-16 GBWXB - Jul 16, 11:54 UTCJul 16, 12:14 UTC20m
2026-07-16 GBWXB - Jul 16, 10:45 UTCJul 16, 11:10 UTC25m
2026-07-13 GBWXB - Jul 13, 10:40 UTCJul 13, 11:10 UTC30m
2026-07-07 GBWXB - Jul 7, 12:55 UTCJul 7, 13:40 UTC45m
2026-07-07 GBWXB - Jul 7, 10:20 UTCJul 7, 11:05 UTC45m
2026-07-04 GBWXB - Jul 4, 12:55 UTCJul 4, 13:15 UTC20m
2026-07-04 GBWXB - Jul 4, 11:10 UTCJul 4, 11:35 UTC25m
2026-07-04 GBWXB - Jul 4, 10:15 UTCJul 4, 10:40 UTC25m
2026-07-03 GBWXB - Jul 3, 13:50 UTCJul 3, 14:15 UTC25m
2026-07-03 GBWXB - Jul 3, 12:40 UTCJul 3, 13:05 UTC25m
2026-07-03 GBWXB - Jul 3, 10:10 UTCJul 3, 10:45 UTC35m
2026-07-02 GBWXB - Jul 2, 12:40 UTCJul 2, 13:00 UTC20m
2026-07-01 GBWXB - Jul 1, 13:00 UTCJul 1, 13:15 UTC15m
2026-06-30 GBWXB - Jun 30, 13:45 UTCJun 30, 14:10 UTC25m
2026-06-30 GBWXB - Jun 30, 12:45 UTCJun 30, 13:10 UTC25m
2026-06-30 GBWXB - Jun 30, 11:15 UTCJun 30, 11:40 UTC25m
2026-06-27 GBWXB - Jun 27, 13:35 UTCJun 27, 13:49 UTC15m
2026-06-27 GBWXB - Jun 27, 12:39 UTCJun 27, 13:04 UTC25m
2026-06-27 GBWXB - Jun 27, 11:04 UTCJun 27, 11:25 UTC20m
2026-06-26 GBWXB - Jun 26, 13:30 UTCJun 26, 13:55 UTC25m
2026-06-26 GBWXB QUG → QUG Jun 26, 11:55 UTCJun 26, 12:19 UTC25m
2026-06-26 GBWXB - Jun 26, 10:35 UTCJun 26, 11:05 UTC30m
2026-06-26 GBWXB - Jun 26, 09:14 UTCJun 26, 09:35 UTC20m
2026-06-23 GBWXB - Jun 23, 13:05 UTCJun 23, 13:24 UTC20m
2026-06-20 GBWXB - Jun 20, 14:14 UTCJun 20, 14:35 UTC20m
2026-06-20 GBWXB - Jun 20, 12:59 UTCJun 20, 13:19 UTC20m
2026-06-19 GBWXB - Jun 19, 11:09 UTCJun 19, 11:34 UTC25m
2026-06-13 GBWXB - Jun 13, 13:10 UTCJun 13, 13:35 UTC25m
2026-06-13 GBWXB QUG → QUG Jun 13, 10:30 UTCJun 13, 10:55 UTC25m
2026-06-12 GBWXB - Jun 12, 14:40 UTCJun 12, 15:05 UTC25m
2026-06-12 GBWXB - Jun 12, 13:15 UTCJun 12, 13:40 UTC25m

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 G-BWXB page for operator, model, and routing details .

Mode-S 403BE0 frequently asked

What is Mode-S code 403BE0?
403BE0 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-BWXB.
Where is Mode-S 403BE0 registered?
Mode-S code 403BE0 is allocated to United Kingdom (GB). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 403BE0 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 403BE0, octal 20035740, decimal 4,209,632.
What flights does 403BE0 operate?
Mode-S 403BE0 has broadcast 1 distinct callsign, including GBWXB.