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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 Jul 26, 22:40 UTC
Flights observed
235
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 22:40 UTC

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 - 7 2026-07-26
SHT1481 - 7 2026-07-26
SHT1480 - 7 2026-07-26
SHT6C - 6 2026-07-25
SHT7T - 3 2026-07-19
SHT6L - 3 2026-07-19
BAW4MJ - 3 2026-07-16
BAW45EM - 3 2026-07-16
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
BAW647 - 2 2026-07-19
BAW646 - 2 2026-07-19
BAW4DC British Airways 2 2026-06-10
BAW387 - 2 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SHT6U - Jul 26, 21:35 UTCJul 26, 22:35 UTC1h 0m
2026-07-26 SHT19B ABZ → LHR Jul 26, 18:20 UTCJul 26, 19:35 UTC1h 15m
2026-07-26 SHT18A LHR → ABZ Jul 26, 15:55 UTCJul 26, 17:00 UTC1h 5m
2026-07-26 SHT7Z GLA → LHR Jul 26, 13:00 UTCJul 26, 13:50 UTC50m
2026-07-26 SHT1480 LGW → GLA Jul 26, 10:30 UTCJul 26, 11:40 UTC1h 10m
2026-07-26 SHT1481 GLA → LGW Jul 26, 07:05 UTCJul 26, 08:05 UTC1h 0m
2026-07-25 SHT6C - Jul 25, 18:20 UTCJul 25, 19:15 UTC55m
2026-07-25 SHT19P ABZ → LHR Jul 25, 15:00 UTCJul 25, 16:00 UTC1h 0m
2026-07-25 SHT18D LHR → ABZ Jul 25, 12:50 UTCJul 25, 13:55 UTC1h 5m
2026-07-25 BAW615 BDS → LHR Jul 25, 09:30 UTCJul 25, 11:20 UTC1h 50m
2026-07-25 BAW614 BDS → LHR Jul 25, 06:10 UTCJul 25, 07:55 UTC1h 45m
2026-07-24 SHT5P - Jul 24, 19:35 UTCJul 24, 20:25 UTC50m
2026-07-24 SHT4G - Jul 24, 17:50 UTCJul 24, 18:40 UTC50m
2026-07-24 BAW347N NCE → LHR Jul 24, 14:15 UTCJul 24, 15:40 UTC1h 25m
2026-07-24 BAW346 LHR → NCE Jul 24, 11:30 UTCJul 24, 13:00 UTC1h 30m
2026-07-24 BAW879 LED → LHR Jul 24, 05:35 UTCJul 24, 08:45 UTC3h 10m
2026-07-23 BAW878 LHR → WAW Jul 23, 18:25 UTCJul 23, 21:10 UTC2h 45m
2026-07-23 BAW86S PRG → LHR Jul 23, 15:00 UTCJul 23, 16:30 UTC1h 30m
2026-07-23 BAW860J LHR → PRG Jul 23, 12:20 UTCJul 23, 13:55 UTC1h 35m
2026-07-23 BAW39P NCE → LHR Jul 23, 08:55 UTCJul 23, 10:30 UTC1h 35m
2026-07-23 BAW348K LHR → NCE Jul 23, 06:00 UTCJul 23, 07:25 UTC1h 25m
2026-07-22 BAW873 KRK → LHR Jul 22, 18:15 UTCJul 22, 20:25 UTC2h 10m
2026-07-22 BAW872 LHR → KRK Jul 22, 15:20 UTCJul 22, 17:15 UTC1h 55m
2026-07-22 BAW853S - Jul 22, 11:10 UTCJul 22, 13:05 UTC1h 55m
2026-07-19 BAW647 - Jul 19, 17:05 UTCJul 19, 20:00 UTC2h 55m
2026-07-19 BAW646 - Jul 19, 12:30 UTCJul 19, 14:45 UTC2h 15m
2026-07-19 SHT7T GLA → LHR Jul 19, 09:55 UTCJul 19, 10:55 UTC1h 0m
2026-07-19 SHT6L - Jul 19, 08:05 UTCJul 19, 09:05 UTC1h 0m
2026-07-17 BAW499 LIS → LHR Jul 17, 18:40 UTCJul 17, 20:44 UTC2h 5m
2026-07-17 BAW2LY - Jul 17, 15:15 UTCJul 17, 17:05 UTC1h 50m
2026-07-17 SHT7Z GLA → LHR Jul 17, 12:45 UTCJul 17, 13:40 UTC55m
2026-07-17 SHT1480 LGW → GLA Jul 17, 10:40 UTCJul 17, 11:45 UTC1h 5m
2026-07-17 SHT1481 GLA → LGW Jul 17, 06:50 UTCJul 17, 08:10 UTC1h 20m
2026-07-16 SHT6C - Jul 16, 19:14 UTCJul 16, 20:09 UTC55m
2026-07-16 SHT3A MAN → LHR Jul 16, 16:49 UTCJul 16, 17:30 UTC40m
2026-07-16 SHT2J - Jul 16, 14:10 UTCJul 16, 14:45 UTC35m
2026-07-16 BAW45EM - Jul 16, 10:50 UTCJul 16, 12:30 UTC1h 40m
2026-07-16 BAW4MJ - Jul 16, 07:20 UTCJul 16, 09:15 UTC1h 55m
2026-07-15 BAW995 - Jul 15, 19:00 UTCJul 15, 20:30 UTC1h 30m
2026-07-15 BAW994 - Jul 15, 16:35 UTCJul 15, 18:00 UTC1h 25m
2026-07-15 SHT7Z GLA → LHR Jul 15, 14:00 UTCJul 15, 15:05 UTC1h 5m
2026-07-15 SHT1480 LGW → GLA Jul 15, 11:40 UTCJul 15, 12:40 UTC1h 0m
2026-07-15 SHT1481 GLA → LGW Jul 15, 08:45 UTCJul 15, 09:55 UTC1h 10m
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

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 Jul 26, 22:40 UTC.
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, SHT1481, SHT1480, SHT6C, SHT7T.