Apparatus

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sensors Mode-S transponder

408353

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-SUEV · DIAMOND DA-40 Club Star

Hex
408353
Octal
20101523
Decimal
4,227,923
Country
GB
Tail
G-SUEV
Type
DA40
No current signal · last broadcast 2h ago
Flights observed
67
Distinct callsigns
6
Country
GB
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 408353.

Country allocation

The ICAO 24-bit address 408353 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 6 distinct

Callsign Airline Flights Last seen
GSUEV - 59 2026-07-18
AOS92 - 4 2026-04-24
EXM98 - 1 2026-04-24
AOS96 - 1 2026-04-28
AOS54 - 1 2026-06-24
AOS51 - 1 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 GSUEV - Jul 18, 15:10 UTCJul 18, 17:15 UTC2h 5m
2026-07-18 GSUEV - Jul 18, 14:20 UTCJul 18, 14:35 UTC15m
2026-07-16 GSUEV - Jul 16, 16:49 UTCJul 16, 19:05 UTC2h 15m
2026-07-16 GSUEV - Jul 16, 13:10 UTCJul 16, 13:45 UTC35m
2026-07-12 GSUEV - Jul 12, 09:30 UTCJul 12, 10:45 UTC1h 15m
2026-07-08 GSUEV GBA → GBA Jul 8, 07:50 UTCJul 8, 08:40 UTC50m
2026-07-07 GSUEV GBA → GBA Jul 7, 15:05 UTCJul 7, 15:55 UTC50m
2026-06-30 GSUEV - Jun 30, 09:15 UTCJun 30, 10:15 UTC1h 0m
2026-06-28 GSUEV - Jun 28, 13:59 UTCJun 28, 14:25 UTC25m
2026-06-27 GSUEV - Jun 27, 12:34 UTCJun 27, 13:35 UTC1h 0m
2026-06-27 GSUEV GBA → CEG Jun 27, 10:00 UTCJun 27, 10:50 UTC50m
2026-06-25 GSUEV OXF → GBA Jun 25, 13:55 UTCJun 25, 14:29 UTC35m
2026-06-25 GSUEV GLO → OXF Jun 25, 11:10 UTCJun 25, 11:59 UTC50m
2026-06-24 AOS54 GLO → GLO Jun 24, 11:14 UTCJun 24, 11:59 UTC45m
2026-06-23 GSUEV - Jun 23, 15:40 UTCJun 23, 16:24 UTC45m
2026-06-23 AOS51 GLO → GLO Jun 23, 10:39 UTCJun 23, 11:29 UTC50m
2026-06-22 GSUEV GLO → GLO Jun 22, 15:59 UTCJun 22, 17:04 UTC1h 5m
2026-06-22 GSUEV - Jun 22, 13:35 UTCJun 22, 14:29 UTC55m
2026-06-22 GSUEV GLO → GLO Jun 22, 11:04 UTCJun 22, 12:34 UTC1h 30m
2026-06-21 GSUEV OXF → GLO Jun 21, 15:09 UTCJun 21, 15:30 UTC20m
2026-06-21 GSUEV - Jun 21, 14:05 UTCJun 21, 14:24 UTC20m
2026-06-20 GSUEV - Jun 20, 10:55 UTCJun 20, 11:54 UTC1h 0m
2026-06-20 GSUEV - Jun 20, 09:49 UTCJun 20, 10:04 UTC15m
2026-06-19 GSUEV - Jun 19, 13:29 UTCJun 19, 15:04 UTC1h 35m
2026-06-18 GSUEV DIJ → GBA Jun 18, 10:15 UTCJun 18, 13:50 UTC3h 35m
2026-06-18 GSUEV - Jun 18, 07:15 UTCJun 18, 09:10 UTC1h 55m
2026-06-17 GSUEV - Jun 17, 12:55 UTCJun 17, 14:40 UTC1h 45m
2026-06-17 GSUEV - Jun 17, 08:45 UTCJun 17, 11:05 UTC2h 20m
2026-06-05 GSUEV - Jun 5, 13:05 UTCJun 5, 15:15 UTC2h 10m
2026-06-05 GSUEV - Jun 5, 07:45 UTCJun 5, 10:55 UTC3h 10m
2026-06-03 GSUEV - Jun 3, 09:50 UTCJun 3, 10:30 UTC40m
2026-06-02 GSUEV - Jun 2, 08:55 UTCJun 2, 09:25 UTC30m
2026-06-01 GSUEV - Jun 1, 09:30 UTCJun 1, 11:10 UTC1h 40m
2026-05-30 GSUEV - May 30, 13:15 UTCMay 30, 14:25 UTC1h 10m
2026-05-30 GSUEV - May 30, 08:15 UTCMay 30, 10:55 UTC2h 40m
2026-05-28 GSUEV - May 28, 09:35 UTCMay 28, 12:25 UTC2h 50m
2026-05-23 GSUEV - May 23, 13:55 UTCMay 23, 14:05 UTC10m
2026-05-23 GSUEV - May 23, 09:25 UTCMay 23, 11:50 UTC2h 25m
2026-05-22 GSUEV OXF → GBA May 22, 10:40 UTCMay 22, 11:05 UTC25m
2026-05-21 GSUEV - May 21, 13:01 UTCMay 21, 13:35 UTC35m
2026-05-17 GSUEV - May 17, 09:00 UTCMay 17, 09:20 UTC20m
2026-05-16 GSUEV - May 16, 11:46 UTCMay 16, 13:15 UTC1h 30m
2026-05-15 GSUEV GBA → JER May 15, 13:05 UTCMay 15, 14:20 UTC1h 15m
2026-05-15 GSUEV - May 15, 10:40 UTCMay 15, 12:15 UTC1h 35m
2026-05-12 GSUEV - May 12, 15:35 UTCMay 12, 16:35 UTC1h 0m
2026-05-11 GSUEV - May 11, 11:35 UTCMay 11, 13:05 UTC1h 30m
2026-05-11 GSUEV - May 11, 07:40 UTCMay 11, 08:55 UTC1h 15m
2026-05-10 GSUEV - May 10, 08:25 UTCMay 10, 10:55 UTC2h 30m
2026-05-07 GSUEV - May 7, 12:50 UTCMay 7, 13:35 UTC45m
2026-05-07 GSUEV - May 7, 10:10 UTCMay 7, 11:00 UTC50m

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

Mode-S 408353 frequently asked

What is Mode-S code 408353?
408353 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-SUEV.
Where is Mode-S 408353 registered?
Mode-S code 408353 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 408353 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 408353, octal 20101523, decimal 4,227,923.
What flights does 408353 operate?
Mode-S 408353 has broadcast 6 distinct callsigns, including GSUEV, AOS92, EXM98, AOS96, AOS54.