sensors Mode-S transponder

405EE1

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUYD · AIRBUS A-320

Hex
405EE1
Octal
20057341
Decimal
4,218,593
Country
GB
Tail
G-EUYD
Type
A320
No current signal · last broadcast 2h ago
Flights observed
388
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 405EE1.

Country allocation

The ICAO 24-bit address 405EE1 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 20 distinct

Callsign Airline Flights Last seen
BAW859 - 5 2026-06-15
BAW591 - 5 2026-07-02
BAW590 - 5 2026-07-01
BAW371 British Airways 5 2026-05-28
SHT7Z - 4 2026-07-04
BAW858V British Airways 4 2026-06-14
BAW3LK British Airways 4 2026-05-28
SHT9A - 3 2026-07-13
SHT8D - 3 2026-07-13
SHT7T - 3 2026-06-21
SHT6C - 3 2026-07-03
SHT15E - 3 2026-06-09
SHT14P - 3 2026-06-08
SHT1481 - 3 2026-07-04
SHT1480 - 3 2026-07-04
BAW988G British Airways 3 2026-05-05
BAW893 - 3 2026-04-15
BAW87PC - 3 2026-07-05
BAW865 British Airways 3 2026-06-15
BAW864 - 3 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BAW73V ZRH → LHR Jul 14, 15:50 UTCJul 14, 17:15 UTC1h 25m
2026-07-14 BAW736 - Jul 14, 13:05 UTCJul 14, 14:25 UTC1h 20m
2026-07-14 SHT13C NCL → LHR Jul 14, 09:40 UTCJul 14, 10:45 UTC1h 5m
2026-07-14 SHT12H - Jul 14, 07:15 UTCJul 14, 08:00 UTC45m
2026-07-13 BAW391 BRU → LHR Jul 13, 20:00 UTCJul 13, 20:40 UTC40m
2026-07-13 BAW9LL LHR → BRU Jul 13, 18:05 UTCJul 13, 18:45 UTC40m
2026-07-13 SHT9K - Jul 13, 15:10 UTCJul 13, 16:20 UTC1h 10m
2026-07-13 SHT8A - Jul 13, 12:30 UTCJul 13, 13:25 UTC55m
2026-07-13 SHT9A - Jul 13, 09:30 UTCJul 13, 10:30 UTC1h 0m
2026-07-13 SHT8D - Jul 13, 06:55 UTCJul 13, 07:50 UTC55m
2026-07-12 BAW527 - Jul 12, 21:05 UTCJul 12, 23:30 UTC2h 25m
2026-07-12 BAW526 - Jul 12, 15:15 UTCJul 12, 17:15 UTC2h 0m
2026-07-12 BAW601Y - Jul 12, 10:45 UTCJul 12, 12:40 UTC1h 55m
2026-07-12 BAW600 - Jul 12, 07:10 UTCJul 12, 08:45 UTC1h 35m
2026-07-11 BAW579V LIN → LHR Jul 11, 19:45 UTCJul 11, 21:20 UTC1h 35m
2026-07-11 BAW578 - Jul 11, 16:30 UTCJul 11, 18:05 UTC1h 35m
2026-07-11 BAW469D - Jul 11, 12:10 UTCJul 11, 14:25 UTC2h 15m
2026-07-10 BAW468 - Jul 10, 10:20 UTCJul 10, 12:10 UTC1h 50m
2026-07-09 BAW9272 - Jul 9, 18:20 UTCJul 9, 20:30 UTC2h 10m
2026-07-08 BAW530 - Jul 8, 17:30 UTCJul 8, 19:30 UTC2h 0m
2026-07-08 BAW479 BCN → LHR Jul 8, 13:25 UTCJul 8, 15:15 UTC1h 50m
2026-07-08 BAW47E - Jul 8, 10:25 UTCJul 8, 12:00 UTC1h 35m
2026-07-08 BAW487E BCN → LHR Jul 8, 05:55 UTCJul 8, 07:55 UTC2h 0m
2026-07-07 BAW486 - Jul 7, 18:55 UTCJul 7, 20:25 UTC1h 30m
2026-07-07 BAW309 - Jul 7, 15:55 UTCJul 7, 16:40 UTC45m
2026-07-07 BAW308 - Jul 7, 13:45 UTCJul 7, 14:25 UTC40m
2026-07-07 BAW547 - Jul 7, 09:35 UTCJul 7, 11:40 UTC2h 5m
2026-07-07 BAW5PQ LHR → FCO Jul 7, 05:40 UTCJul 7, 07:40 UTC2h 0m
2026-07-06 BAW313 - Jul 6, 19:50 UTCJul 6, 20:30 UTC40m
2026-07-06 BAW312 - Jul 6, 17:40 UTCJul 6, 18:20 UTC40m
2026-07-06 BAW553C FCO → LHR Jul 6, 14:00 UTCJul 6, 16:10 UTC2h 10m
2026-07-06 BAW552F LHR → FCO Jul 6, 10:20 UTCJul 6, 12:15 UTC1h 55m
2026-07-06 BAW61XM VCE → LHR Jul 6, 06:45 UTCJul 6, 08:40 UTC1h 55m
2026-07-05 BAW87PC - Jul 5, 18:15 UTCJul 5, 19:55 UTC1h 40m
2026-07-05 SHT3A MAN → LHR Jul 5, 16:10 UTCJul 5, 16:45 UTC35m
2026-07-05 SHT2J - Jul 5, 14:05 UTCJul 5, 14:40 UTC35m
2026-07-05 BAW469 - Jul 5, 10:35 UTCJul 5, 12:40 UTC2h 5m
2026-07-05 BAW468 - Jul 5, 06:55 UTCJul 5, 08:55 UTC2h 0m
2026-07-04 BAW995 - Jul 4, 17:55 UTCJul 4, 19:25 UTC1h 30m
2026-07-04 BAW994 - Jul 4, 15:20 UTCJul 4, 16:40 UTC1h 20m
2026-07-04 SHT7Z - Jul 4, 12:35 UTCJul 4, 13:30 UTC55m
2026-07-04 SHT1480 LGW → GLA Jul 4, 10:25 UTCJul 4, 11:30 UTC1h 5m
2026-07-04 SHT1481 - Jul 4, 06:50 UTCJul 4, 07:50 UTC1h 0m
2026-07-03 SHT6C - Jul 3, 17:25 UTCJul 3, 18:25 UTC1h 0m
2026-07-03 BAW817 - Jul 3, 14:30 UTCJul 3, 16:00 UTC1h 30m
2026-07-03 BAW816 - Jul 3, 11:45 UTCJul 3, 13:15 UTC1h 30m
2026-07-03 BAW301 - Jul 3, 09:05 UTCJul 3, 09:50 UTC45m
2026-07-03 BAW30DG - Jul 3, 06:45 UTCJul 3, 07:35 UTC50m
2026-07-02 SHT7J - Jul 2, 19:55 UTCJul 2, 20:50 UTC55m
2026-07-02 SHT6K - Jul 2, 17:55 UTCJul 2, 18:55 UTC1h 0m

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

Mode-S 405EE1 frequently asked

What is Mode-S code 405EE1?
405EE1 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUYD.
Where is Mode-S 405EE1 registered?
Mode-S code 405EE1 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 405EE1 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 405EE1, octal 20057341, decimal 4,218,593.
What flights does 405EE1 operate?
Mode-S 405EE1 has broadcast 20 distinct callsigns, including BAW859, BAW591, BAW590, BAW371, SHT7Z.