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sensors Mode-S transponder

4009DB

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUUN · AIRBUS A-320

Hex
4009DB
Octal
20004733
Decimal
4,196,827
Country
GB
Tail
G-EUUN
Type
A320
No current signal · last broadcast 8h ago
Flights observed
192
Distinct callsigns
20
Country
GB
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 4009DB.

Country allocation

The ICAO 24-bit address 4009DB 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
SHT7Z - 4 2026-06-11
SHT6C - 4 2026-07-14
SHT1481 - 4 2026-06-11
SHT1480 - 4 2026-06-11
SHT7T - 2 2026-06-10
SHT6L - 2 2026-06-10
BAW923 - 2 2026-06-29
BAW922 - 2 2026-06-29
BAW88LP - 2 2026-07-02
BAW889 - 2 2026-07-02
BAW859 - 2 2026-06-24
BAW858V - 2 2026-06-23
BAW781 - 2 2026-06-23
BAW780H - 2 2026-06-23
BAW4MJ - 2 2026-06-29
BAW4DC British Airways 2 2026-06-10
BAW45EM - 2 2026-06-29
BAW387 - 2 2026-07-09
BAW386 - 2 2026-07-09
BAW30N British Airways 2 2026-06-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SHT6C - Jul 14, 17:40 UTCJul 14, 18:35 UTC55m
2026-07-14 BAW59Z LIS → LHR Jul 14, 13:50 UTCJul 14, 15:55 UTC2h 5m
2026-07-14 BAW5LI - Jul 14, 09:20 UTCJul 14, 11:40 UTC2h 20m
2026-07-14 SHT15E JER → LHR Jul 14, 06:20 UTCJul 14, 07:00 UTC40m
2026-07-13 SHT14P - Jul 13, 19:15 UTCJul 13, 19:45 UTC30m
2026-07-13 BAW951L - Jul 13, 15:25 UTCJul 13, 17:45 UTC2h 20m
2026-07-13 BAW950M - Jul 13, 11:45 UTCJul 13, 13:30 UTC1h 45m
2026-07-13 SHT5R - Jul 13, 08:50 UTCJul 13, 09:55 UTC1h 5m
2026-07-13 SHT4H - Jul 13, 06:35 UTCJul 13, 07:25 UTC50m
2026-07-12 BAW835W DUB → LHR Jul 12, 20:55 UTCJul 12, 21:40 UTC45m
2026-07-12 BAW834 - Jul 12, 18:50 UTCJul 12, 19:35 UTC45m
2026-07-12 BAW831 DUB → LHR Jul 12, 15:10 UTCJul 12, 16:05 UTC55m
2026-07-12 BAW830D LHR → DUB Jul 12, 12:35 UTCJul 12, 13:35 UTC1h 0m
2026-07-12 BAW569J LIN → LHR Jul 12, 09:00 UTCJul 12, 10:40 UTC1h 40m
2026-07-12 BAW568J LHR → LIN Jul 12, 06:01 UTCJul 12, 07:31 UTC1h 30m
2026-07-11 SHT5T - Jul 11, 18:25 UTCJul 11, 19:25 UTC1h 0m
2026-07-11 STH4F - Jul 11, 16:25 UTCJul 11, 17:15 UTC50m
2026-07-11 BAW551G - Jul 11, 12:40 UTCJul 11, 14:50 UTC2h 10m
2026-07-11 BAW550 - Jul 11, 08:40 UTCJul 11, 10:35 UTC1h 55m
2026-07-11 BAW757A GVA → LHR Jul 11, 05:40 UTCJul 11, 07:00 UTC1h 20m
2026-07-10 BAW756 - Jul 10, 19:55 UTCJul 10, 21:05 UTC1h 10m
2026-07-10 BAW5RF - Jul 10, 15:40 UTCJul 10, 18:00 UTC2h 20m
2026-07-10 BAW554R - Jul 10, 12:00 UTCJul 10, 14:05 UTC2h 5m
2026-07-10 BAW385 BRU → LHR Jul 10, 09:40 UTCJul 10, 10:30 UTC50m
2026-07-10 BAW384 LHR → BRU Jul 10, 07:25 UTCJul 10, 08:05 UTC40m
2026-07-09 BAW739 ZRH → LHR Jul 9, 19:20 UTCJul 9, 20:35 UTC1h 15m
2026-07-09 BAW73NA LHR → ZRH Jul 9, 16:50 UTCJul 9, 18:10 UTC1h 20m
2026-07-09 BAW387 BRU → LHR Jul 9, 14:10 UTCJul 9, 15:05 UTC55m
2026-07-09 BAW386 - Jul 9, 12:20 UTCJul 9, 13:00 UTC40m
2026-07-09 SHT9A EDI → LHR Jul 9, 09:15 UTCJul 9, 10:25 UTC1h 10m
2026-07-09 SHT8D LHR → EDI Jul 9, 06:30 UTCJul 9, 07:20 UTC50m
2026-07-08 BAW495 - Jul 8, 17:45 UTCJul 8, 19:40 UTC1h 55m
2026-07-08 BAW494 - Jul 8, 14:20 UTCJul 8, 16:10 UTC1h 50m
2026-07-08 BAW303 - Jul 8, 11:30 UTCJul 8, 12:15 UTC45m
2026-07-08 BAW302 - Jul 8, 09:00 UTCJul 8, 09:45 UTC45m
2026-07-06 BAW919 - Jul 6, 09:00 UTCJul 6, 10:25 UTC1h 25m
2026-07-06 BAW918 - Jul 6, 06:25 UTCJul 6, 07:20 UTC55m
2026-07-05 BAW337 NCE → LHR Jul 5, 20:15 UTCJul 5, 21:55 UTC1h 40m
2026-07-05 BAW336 - Jul 5, 17:10 UTCJul 5, 18:35 UTC1h 25m
2026-07-05 SHT17L - Jul 5, 14:00 UTCJul 5, 15:10 UTC1h 10m
2026-07-05 SHT16E - Jul 5, 11:35 UTCJul 5, 12:50 UTC1h 15m
2026-07-05 BAW429 - Jul 5, 08:30 UTCJul 5, 09:25 UTC55m
2026-07-05 BAW428 - Jul 5, 06:05 UTCJul 5, 06:55 UTC50m
2026-07-04 BAW661 - Jul 4, 17:25 UTCJul 4, 20:35 UTC3h 10m
2026-07-04 BAW66GA - Jul 4, 13:10 UTCJul 4, 16:00 UTC2h 50m
2026-07-04 SHT9B EDI → LHR Jul 4, 10:30 UTCJul 4, 11:30 UTC1h 0m
2026-07-04 SHT8R - Jul 4, 08:20 UTCJul 4, 09:10 UTC50m
2026-07-02 BAW889 HAJ → LHR Jul 2, 10:20 UTCJul 2, 11:35 UTC1h 15m
2026-07-02 BAW88LP - Jul 2, 07:55 UTCJul 2, 09:00 UTC1h 5m
2026-07-01 BAW7PI - Jul 1, 17:50 UTCJul 1, 19:05 UTC1h 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-EUUN page for operator, model, and routing details .

Mode-S 4009DB frequently asked

What is Mode-S code 4009DB?
4009DB is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUUN.
Where is Mode-S 4009DB registered?
Mode-S code 4009DB 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 4009DB broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4009DB, octal 20004733, decimal 4,196,827.
What flights does 4009DB operate?
Mode-S 4009DB has broadcast 20 distinct callsigns, including SHT7Z, SHT6C, SHT1481, SHT1480, SHT7T.