Apparatus

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sensors Mode-S transponder

4009DA

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUUM · AIRBUS A-320

Hex
4009DA
Octal
20004732
Decimal
4,196,826
Country
GB
Tail
G-EUUM
Type
A320
No current signal · last broadcast 1h ago
Flights observed
214
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4009DA.

Country allocation

The ICAO 24-bit address 4009DA 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
BAW493U British Airways 4 2026-04-14
BAW492 - 4 2026-04-14
BAW903 British Airways 3 2026-04-29
BAW902N British Airways 3 2026-04-29
BAW895 British Airways 3 2026-05-16
BAW87PC British Airways 3 2026-05-28
BAW871 British Airways 3 2026-04-17
BAW61XM British Airways 3 2026-05-29
SHT5N - 2 2026-05-05
SHT4YL - 2 2026-05-04
SHT15E - 2 2026-04-28
SHT15D - 2 2026-05-12
SHT14P - 2 2026-04-27
SHT14L - 2 2026-05-12
SHT13W - 2 2026-05-12
SHT12T - 2 2026-05-12
BAW965 British Airways 2 2026-05-10
BAW964H British Airways 2 2026-05-10
BAW935 British Airways 2 2026-05-02
BAW934 British Airways 2 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BAW42LX LHR → LUX May 30, 05:30 UTCMay 30, 07:45 UTC2h 15m
2026-05-29 BAW34V PRG → LHR May 29, 20:15 UTCMay 29, 21:50 UTC1h 35m
2026-05-29 BAW856Z LHR → PRG May 29, 17:35 UTCMay 29, 19:10 UTC1h 35m
2026-05-29 BAW449 TFS → LHR May 29, 13:30 UTCMay 29, 15:35 UTC2h 5m
2026-05-29 BAW448 LHR → TFS May 29, 10:30 UTCMay 29, 12:20 UTC1h 50m
2026-05-29 BAW61XM PMO → LHR May 29, 05:55 UTCMay 29, 07:45 UTC1h 50m
2026-05-28 BAW87PC LHR → PMO May 28, 19:00 UTCMay 28, 20:35 UTC1h 35m
2026-05-28 BAW603 PSA → LHR May 28, 15:25 UTCMay 28, 17:20 UTC1h 55m
2026-05-28 BAW602 LHR → PSA May 28, 12:40 UTCMay 28, 14:20 UTC1h 40m
2026-05-28 BAW41R AMS → LHR May 28, 09:55 UTCMay 28, 10:55 UTC1h 0m
2026-05-28 BAW430A LHR → AMS May 28, 07:45 UTCMay 28, 08:20 UTC35m
2026-05-28 BAW765 INN → LHR May 28, 04:30 UTCMay 28, 05:40 UTC1h 10m
2026-05-27 BAW764 LHR → INN May 27, 19:45 UTCMay 27, 20:55 UTC1h 10m
2026-05-27 SHT13K NCL → LHR May 27, 16:45 UTCMay 27, 17:35 UTC50m
2026-05-27 SHT12Z - May 27, 14:55 UTCMay 27, 15:40 UTC45m
2026-05-27 BAW8ER DUB → LHR May 27, 12:20 UTCMay 27, 13:15 UTC55m
2026-05-27 BAW828Y LHR → DUB May 27, 09:50 UTCMay 27, 10:50 UTC1h 0m
2026-05-27 SHT17Q - May 27, 06:40 UTCMay 27, 07:55 UTC1h 15m
2026-05-26 SHT16H - May 26, 19:40 UTCMay 26, 20:45 UTC1h 5m
2026-05-26 BAW751 BSL → LHR May 26, 15:49 UTCMay 26, 17:04 UTC1h 15m
2026-05-26 BAW750 LHR → BSL May 26, 13:24 UTCMay 26, 14:40 UTC1h 15m
2026-05-26 BAW303 CDG → LHR May 26, 10:05 UTCMay 26, 10:50 UTC45m
2026-05-26 BAW302 CDG → LHR May 26, 08:10 UTCMay 26, 08:50 UTC40m
2026-05-26 BAW757A BSL → LHR May 26, 05:15 UTCMay 26, 06:34 UTC1h 20m
2026-05-25 BAW756 LHR → BSL May 25, 19:25 UTCMay 25, 20:40 UTC1h 15m
2026-05-25 BAW607M PSA → LHR May 25, 15:45 UTCMay 25, 17:35 UTC1h 50m
2026-05-25 BAW606 LHR → PSA May 25, 12:40 UTCMay 25, 14:25 UTC1h 45m
2026-05-25 SHT9A EDI → LHR May 25, 09:25 UTCMay 25, 10:35 UTC1h 10m
2026-05-25 SHT8D - May 25, 07:10 UTCMay 25, 08:05 UTC55m
2026-05-24 SHT19Q ABZ → LHR May 24, 19:50 UTCMay 24, 20:50 UTC1h 0m
2026-05-24 SHT18H LHR → ABZ May 24, 17:55 UTCMay 24, 19:00 UTC1h 5m
2026-05-24 BAW575 LIN → LHR May 24, 15:00 UTCMay 24, 16:25 UTC1h 25m
2026-05-24 BAW74E LHR → LIN May 24, 11:25 UTCMay 24, 13:00 UTC1h 35m
2026-05-24 BAW379 TLS → LHR May 24, 06:45 UTCMay 24, 09:30 UTC2h 45m
2026-05-23 BAW378 LHR → TLS May 23, 18:25 UTCMay 23, 20:50 UTC2h 25m
2026-05-23 BAW839 CFU → LHR May 23, 13:55 UTCMay 23, 16:20 UTC2h 25m
2026-05-23 BAW838 LHR → CFU May 23, 10:30 UTCMay 23, 12:25 UTC1h 55m
2026-05-23 BAW61XM PMO → LHR May 23, 06:35 UTCMay 23, 08:35 UTC2h 0m
2026-05-22 BAW87PC LHR → PMO May 22, 20:40 UTCMay 22, 22:20 UTC1h 40m
2026-05-22 BAW513 PMI → LHR May 22, 16:45 UTCMay 22, 19:10 UTC2h 25m
2026-05-22 BAW512 LHR → PMI May 22, 13:15 UTCMay 22, 15:40 UTC2h 25m
2026-05-22 BAW813C CPH → LHR May 22, 09:20 UTCMay 22, 10:50 UTC1h 30m
2026-05-22 BAW812 LHR → CPH May 22, 06:30 UTCMay 22, 07:55 UTC1h 25m
2026-05-21 BAW9276 GLA → BHD May 21, 20:25 UTCMay 21, 21:05 UTC40m
2026-05-18 BAW9273 BHX → LHR May 18, 07:25 UTCMay 18, 08:01 UTC35m
2026-05-17 BAW34V PRG → LHR May 17, 20:30 UTCMay 17, 21:55 UTC1h 25m
2026-05-17 BAW856Z LHR → PRG May 17, 17:55 UTCMay 17, 19:25 UTC1h 30m
2026-05-17 BAW875 BUD → LHR May 17, 12:25 UTCMay 17, 15:20 UTC2h 55m
2026-05-17 BAW874 LHR → BUD May 17, 08:25 UTCMay 17, 11:10 UTC2h 45m
2026-05-16 BAW895 KEF → LHR May 16, 19:30 UTCMay 16, 20:40 UTC1h 10m

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

Mode-S 4009DA frequently asked

What is Mode-S code 4009DA?
4009DA is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUUM.
Where is Mode-S 4009DA registered?
Mode-S code 4009DA 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 4009DA broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4009DA, octal 20004732, decimal 4,196,826.
What flights does 4009DA operate?
Mode-S 4009DA has broadcast 20 distinct callsigns, including BAW493U, BAW492, BAW903, BAW902N, BAW895.