Apparatus

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sensors Mode-S transponder

400A0E

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUUO · AIRBUS A-320

Hex
400A0E
Octal
20005016
Decimal
4,196,878
Country
GB
Tail
G-EUUO
Type
A320
No current signal · last broadcast 4h ago
Flights observed
294
Distinct callsigns
20
Country
GB
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 400A0E.

Country allocation

The ICAO 24-bit address 400A0E 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
BAW492 British Airways 4 2026-05-20
SHT7A - 3 2026-05-28
SHT6A - 3 2026-05-27
SHT5X - 3 2026-05-31
SHT4A - 3 2026-05-31
BAW831 British Airways 3 2026-06-05
BAW815C - 3 2026-04-13
BAW619 British Airways 3 2026-06-12
BAW618 British Airways 3 2026-06-12
BAW511 British Airways 3 2026-05-03
BAW507 British Airways 3 2026-05-15
BAW506 British Airways 3 2026-05-15
BAW493U British Airways 3 2026-05-20
BAW329 British Airways 3 2026-05-14
BAW328 British Airways 3 2026-05-14
SHT7Z - 2 2026-06-09
SHT6C - 2 2026-06-08
SHT4YL - 2 2026-06-02
SHT3G - 2 2026-06-10
SHT2T - 2 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-12 BAW619 LHR → OLB Jun 12, 18:15 UTCJun 12, 20:55 UTC2h 40m
2026-06-12 BAW618 LHR → OLB Jun 12, 14:40 UTCJun 12, 16:55 UTC2h 15m
2026-06-12 BAW615 BDS → LHR Jun 12, 11:15 UTCJun 12, 13:05 UTC1h 50m
2026-06-12 BAW614 - Jun 12, 08:15 UTCJun 12, 09:55 UTC1h 40m
2026-06-12 BAW445 AMS → LHR Jun 12, 05:50 UTCJun 12, 06:40 UTC50m
2026-06-11 BAW9MS LHR → AMS Jun 11, 19:15 UTCJun 11, 19:55 UTC40m
2026-06-11 SHT13K NCL → LHR Jun 11, 17:00 UTCJun 11, 17:50 UTC50m
2026-06-11 SHT12Z LHR → NCL Jun 11, 15:15 UTCJun 11, 16:05 UTC50m
2026-06-11 BAW423 AMS → LHR Jun 11, 11:10 UTCJun 11, 13:40 UTC2h 30m
2026-06-11 BAW422 LHR → VLC Jun 11, 07:00 UTCJun 11, 09:20 UTC2h 20m
2026-06-10 BAW317 CDG → LHR Jun 10, 20:00 UTCJun 10, 20:45 UTC45m
2026-06-10 BAW16UP LHR → CDG Jun 10, 18:15 UTCJun 10, 18:55 UTC40m
2026-06-10 BAW585 MXP → LHR Jun 10, 13:00 UTCJun 10, 14:35 UTC1h 35m
2026-06-10 BAW584 LHR → MXP Jun 10, 09:45 UTCJun 10, 11:10 UTC1h 25m
2026-06-10 SHT3G MAN → LHR Jun 10, 07:35 UTCJun 10, 08:25 UTC50m
2026-06-09 SHT2T - Jun 9, 21:00 UTCJun 9, 21:20 UTC20m
2026-06-09 BAW923 STR → LHR Jun 9, 18:05 UTCJun 9, 19:45 UTC1h 40m
2026-06-09 BAW922 LHR → STR Jun 9, 15:15 UTCJun 9, 15:50 UTC35m
2026-06-09 SHT7Z GLA → LHR Jun 9, 12:35 UTCJun 9, 13:40 UTC1h 5m
2026-06-09 SHT1480 LGW → GLA Jun 9, 09:30 UTCJun 9, 10:30 UTC1h 0m
2026-06-09 SHT1481 GLA → LGW Jun 9, 07:05 UTCJun 9, 08:15 UTC1h 10m
2026-06-08 SHT6C - Jun 8, 17:35 UTCJun 8, 18:30 UTC55m
2026-06-08 SHT9K EDI → LHR Jun 8, 14:20 UTCJun 8, 15:25 UTC1h 5m
2026-06-08 SHT8A - Jun 8, 12:25 UTCJun 8, 13:20 UTC55m
2026-06-08 BAW903 FRA → LHR Jun 8, 09:05 UTCJun 8, 10:30 UTC1h 25m
2026-06-08 BAW902N LHR → FRA Jun 8, 06:05 UTCJun 8, 07:15 UTC1h 10m
2026-06-07 BAW819K CPH → LHR Jun 7, 19:30 UTCJun 7, 21:00 UTC1h 30m
2026-06-07 BAW8TD LHR → CPH Jun 7, 16:55 UTCJun 7, 18:20 UTC1h 25m
2026-06-07 BAW539 FCO → LHR Jun 7, 12:40 UTCJun 7, 15:25 UTC2h 45m
2026-06-07 BAW538 LHR → FCO Jun 7, 09:05 UTCJun 7, 11:30 UTC2h 25m
2026-06-07 BAW445 VLC → LHR Jun 7, 06:25 UTCJun 7, 07:25 UTC1h 0m
2026-06-06 BAW9MS LHR → AMS Jun 6, 19:10 UTCJun 6, 19:50 UTC40m
2026-06-06 BAW479 IBZ → LHR Jun 6, 15:15 UTCJun 6, 17:10 UTC1h 55m
2026-06-06 BAW47E LHR → BCN Jun 6, 12:24 UTCJun 6, 14:04 UTC1h 40m
2026-06-06 BAW357 NCE → LHR Jun 6, 08:55 UTCJun 6, 10:34 UTC1h 40m
2026-06-06 BAW356 LHR → NCE Jun 6, 06:35 UTCJun 6, 07:45 UTC1h 10m
2026-06-05 BAW755 BSL → LHR Jun 5, 19:35 UTCJun 5, 20:50 UTC1h 15m
2026-06-05 BAW754 LHR → BSL Jun 5, 17:25 UTCJun 5, 18:35 UTC1h 10m
2026-06-05 BAW831 DUB → LHR Jun 5, 14:45 UTCJun 5, 15:45 UTC1h 0m
2026-06-05 BAW830D LHR → DUB Jun 5, 12:30 UTCJun 5, 13:25 UTC55m
2026-06-05 BAW919 STR → LHR Jun 5, 09:15 UTCJun 5, 10:20 UTC1h 5m
2026-06-05 BAW918 LHR → STR Jun 5, 06:55 UTCJun 5, 07:55 UTC1h 0m
2026-06-03 BAW719 ZRH → LHR Jun 3, 15:20 UTCJun 3, 19:00 UTC3h 40m
2026-06-03 BAW718 LHR → ZRH Jun 3, 08:30 UTCJun 3, 11:40 UTC3h 10m
2026-06-03 SHT5N - Jun 3, 05:45 UTCJun 3, 06:40 UTC55m
2026-06-02 SHT4YL - Jun 2, 19:45 UTCJun 2, 20:40 UTC55m
2026-06-02 BAW309 CDG → LHR Jun 2, 16:40 UTCJun 2, 17:50 UTC1h 10m
2026-06-02 BAW308 LHR → CDG Jun 2, 14:25 UTCJun 2, 15:15 UTC50m
2026-06-02 BAW1495 GLA → LHR Jun 2, 11:20 UTCJun 2, 12:20 UTC1h 0m
2026-06-01 SHT6D - Jun 1, 20:50 UTCJun 1, 21:40 UTC50m

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

Mode-S 400A0E frequently asked

What is Mode-S code 400A0E?
400A0E is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUUO.
Where is Mode-S 400A0E registered?
Mode-S code 400A0E 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 400A0E broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 400A0E, octal 20005016, decimal 4,196,878.
What flights does 400A0E operate?
Mode-S 400A0E has broadcast 20 distinct callsigns, including BAW492, SHT7A, SHT6A, SHT5X, SHT4A.