Apparatus

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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
Broadcasting now · callsign BAW409 · 35,825 ft
Flights observed
202
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Current position

405EE1 is currently broadcasting. Map zoomed to live position.

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
BAW371 British Airways 5 2026-05-28
BAW859 British Airways 4 2026-05-29
BAW3LK British Airways 4 2026-05-28
SHT7Z - 3 2026-05-07
BAW988G British Airways 3 2026-05-05
BAW893 - 3 2026-04-15
BAW858V British Airways 3 2026-05-28
SHT7T - 2 2026-04-17
SHT6C - 2 2026-05-06
SHT4H - 2 2026-04-18
SHT1481 - 2 2026-05-07
SHT1480 - 2 2026-05-07
BAW989 British Airways 2 2026-05-05
BAW9260 British Airways 2 2026-05-20
BAW892 British Airways 2 2026-04-15
BAW871 British Airways 2 2026-04-14
BAW865 British Airways 2 2026-04-14
BAW864 British Airways 2 2026-04-14
BAW835W British Airways 2 2026-05-27
BAW834 British Airways 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BAW408 LHR → VLC May 30, 13:30 UTCMay 30, 15:10 UTC1h 40m
2026-05-29 BAW19LX LUX → LHR May 29, 20:10 UTCMay 29, 20:55 UTC45m
2026-05-29 BAW18LX LHR → LUX May 29, 18:15 UTCMay 29, 19:05 UTC50m
2026-05-29 BAW875 BUD → LHR May 29, 13:40 UTCMay 29, 16:40 UTC3h 0m
2026-05-29 BAW874 LHR → BUD May 29, 09:10 UTCMay 29, 11:55 UTC2h 45m
2026-05-29 BAW859 PRG → LHR May 29, 05:20 UTCMay 29, 07:10 UTC1h 50m
2026-05-28 BAW858V LHR → PRG May 28, 20:30 UTCMay 28, 22:00 UTC1h 30m
2026-05-28 BAW371 MRS → LHR May 28, 17:40 UTCMay 28, 19:10 UTC1h 30m
2026-05-28 BAW3LK LHR → MRS May 28, 15:10 UTCMay 28, 16:25 UTC1h 15m
2026-05-28 BAW475E BCN → LHR May 28, 10:15 UTCMay 28, 12:20 UTC2h 5m
2026-05-28 BAW474K LHR → BCN May 28, 07:10 UTCMay 28, 08:45 UTC1h 35m
2026-05-27 BAW835W DUB → LHR May 27, 19:35 UTCMay 27, 20:30 UTC55m
2026-05-27 BAW834 LHR → DUB May 27, 17:35 UTCMay 27, 18:35 UTC1h 0m
2026-05-27 BAW30N CDG → LHR May 27, 15:10 UTCMay 27, 15:55 UTC45m
2026-05-27 BAW4DC LHR → CDG May 27, 12:45 UTCMay 27, 13:25 UTC40m
2026-05-27 BAW87AM BER → LHR May 27, 09:35 UTCMay 27, 11:10 UTC1h 35m
2026-05-27 BAW986G LHR → BER May 27, 06:55 UTCMay 27, 08:20 UTC1h 25m
2026-05-26 BAW835W DUB → LHR May 26, 20:20 UTCMay 26, 21:09 UTC50m
2026-05-26 BAW834 LHR → DUB May 26, 18:30 UTCMay 26, 19:15 UTC45m
2026-05-26 SHT9C - May 26, 15:09 UTCMay 26, 16:15 UTC1h 5m
2026-05-26 SHT8E - May 26, 12:54 UTCMay 26, 13:50 UTC55m
2026-05-26 BAW813C CPH → LHR May 26, 09:15 UTCMay 26, 10:50 UTC1h 35m
2026-05-26 BAW812 LHR → CPH May 26, 06:14 UTCMay 26, 07:40 UTC1h 25m
2026-05-25 BAW391 BRU → LHR May 25, 19:15 UTCMay 25, 19:54 UTC40m
2026-05-25 BAW9CJ - May 25, 17:05 UTCMay 25, 17:45 UTC40m
2026-05-25 SHT9K - May 25, 14:30 UTCMay 25, 15:35 UTC1h 5m
2026-05-25 SHT8A - May 25, 12:20 UTCMay 25, 13:10 UTC50m
2026-05-25 BAW813C CPH → LHR May 25, 08:55 UTCMay 25, 10:30 UTC1h 35m
2026-05-25 BAW812 LHR → CPH May 25, 06:20 UTCMay 25, 07:45 UTC1h 25m
2026-05-24 SHT7J GLA → LHR May 24, 20:20 UTCMay 24, 21:15 UTC55m
2026-05-24 SHT6K - May 24, 16:50 UTCMay 24, 17:45 UTC55m
2026-05-24 SHT9J - May 24, 13:20 UTCMay 24, 14:30 UTC1h 10m
2026-05-24 SHT8W - May 24, 11:00 UTCMay 24, 11:55 UTC55m
2026-05-24 BAW429 AMS → LHR May 24, 08:20 UTCMay 24, 09:00 UTC40m
2026-05-24 BAW428 LHR → AMS May 24, 06:05 UTCMay 24, 06:50 UTC45m
2026-05-23 BAW43M MAD → LHR May 23, 17:20 UTCMay 23, 19:15 UTC1h 56m
2026-05-23 BAW462V LHR → MAD May 23, 14:20 UTCMay 23, 16:05 UTC1h 45m
2026-05-23 BAW45EM MAD → LHR May 23, 10:35 UTCMay 23, 12:20 UTC1h 45m
2026-05-23 BAW4MJ LHR → MAD May 23, 06:55 UTCMay 23, 09:00 UTC2h 5m
2026-05-22 BAW309 CDG → LHR May 22, 20:10 UTCMay 22, 20:55 UTC45m
2026-05-22 BAW308 LHR → CDG May 22, 18:05 UTCMay 22, 18:45 UTC40m
2026-05-22 SHT19A ABZ → LHR May 22, 13:35 UTCMay 22, 15:00 UTC1h 25m
2026-05-22 SHT18C - May 22, 11:35 UTCMay 22, 12:30 UTC55m
2026-05-22 SHT13C NCL → LHR May 22, 08:45 UTCMay 22, 09:45 UTC1h 0m
2026-05-22 SHT12H - May 22, 06:35 UTCMay 22, 07:15 UTC40m
2026-05-21 BAW9261 PIK → LHR May 21, 17:15 UTCMay 21, 18:15 UTC1h 0m
2026-05-21 BAW9266 - May 21, 07:40 UTCMay 21, 09:10 UTC1h 30m
2026-05-20 BAW9260 LHR → SNN May 20, 11:50 UTCMay 20, 12:35 UTC45m
2026-05-20 BAW9262 - May 20, 10:35 UTCMay 20, 11:25 UTC50m
2026-05-20 BAW9260 LHR → SNN May 20, 06:50 UTCMay 20, 09:05 UTC2h 15m

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?
Yes. Mode-S 405EE1 is currently airborne.
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 BAW371, BAW859, BAW3LK, SHT7Z, BAW988G.