Apparatus

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sensors Mode-S transponder

4008AE

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUPO · AIRBUS A-319

Hex
4008AE
Octal
20004256
Decimal
4,196,526
Country
GB
Tail
G-EUPO
Type
A319
No current signal · last broadcast Jul 25, 20:15 UTC
Flights observed
376
Distinct callsigns
20
Country
GB
Last broadcast
Jul 25, 20:15 UTC

Last known position

Most recent position reported by Mode-S 4008AE.

Country allocation

The ICAO 24-bit address 4008AE 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
SHT22A - 5 2026-07-23
BAW61XM - 5 2026-06-16
BAW741 - 4 2026-07-15
BAW740 - 4 2026-07-14
BAW4DC - 4 2026-07-20
BAW30N - 4 2026-07-20
SHT9B - 3 2026-07-17
SHT8R - 3 2026-07-17
SHT3G - 3 2026-07-06
SHT2T - 3 2026-07-05
SHT21B - 3 2026-07-23
SHT19S - 3 2026-07-19
SHT18K - 3 2026-07-19
BAW87PC - 3 2026-06-15
BAW807K British Airways 3 2026-04-25
BAW7YT - 3 2026-07-09
BAW743 British Airways 3 2026-06-15
BAW742 - 3 2026-06-15
BAW590 British Airways 3 2026-07-21
BAW577 British Airways 3 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 BAW835W DUB → LHR Jul 25, 19:25 UTCJul 25, 20:15 UTC50m
2026-07-25 BAW834 LHR → DUB Jul 25, 17:15 UTCJul 25, 18:00 UTC45m
2026-07-25 BAW471 BCN → LHR Jul 25, 13:35 UTCJul 25, 15:45 UTC2h 10m
2026-07-25 BAW470 LHR → BCN Jul 25, 10:15 UTCJul 25, 12:25 UTC2h 10m
2026-07-25 BAW823 DUB → LHR Jul 25, 06:00 UTCJul 25, 07:45 UTC1h 45m
2026-07-24 BAW822 LHR → CPH Jul 24, 20:05 UTCJul 24, 21:35 UTC1h 30m
2026-07-24 SHT13H NCL → LHR Jul 24, 17:30 UTCJul 24, 18:35 UTC1h 5m
2026-07-24 SHT12Q - Jul 24, 15:40 UTCJul 24, 16:25 UTC45m
2026-07-24 BAW433 AMS → LHR Jul 24, 13:00 UTCJul 24, 13:40 UTC40m
2026-07-24 BAW432 LHR → AMS Jul 24, 10:50 UTCJul 24, 11:35 UTC45m
2026-07-24 SHT3P MAN → LHR Jul 24, 08:15 UTCJul 24, 09:00 UTC45m
2026-07-24 SHT2V - Jul 24, 06:25 UTCJul 24, 07:00 UTC35m
2026-07-23 BAW609 OLB → LHR Jul 23, 18:20 UTCJul 23, 20:00 UTC1h 40m
2026-07-23 BAW608 OLB → LHR Jul 23, 15:30 UTCJul 23, 17:05 UTC1h 35m
2026-07-23 SHT21B GCI → LHR Jul 23, 13:00 UTCJul 23, 13:45 UTC45m
2026-07-23 SHT22A - Jul 23, 11:30 UTCJul 23, 12:00 UTC30m
2026-07-23 BAW385 CAI → LHR Jul 23, 09:10 UTCJul 23, 10:00 UTC50m
2026-07-23 BAW384 LHR → CAI Jul 23, 07:00 UTCJul 23, 07:40 UTC40m
2026-07-22 BAW561L LIN → LHR Jul 22, 19:25 UTCJul 22, 21:35 UTC2h 10m
2026-07-22 BAW560F - Jul 22, 16:15 UTCJul 22, 18:10 UTC1h 55m
2026-07-22 BAW573 LIN → LHR Jul 22, 12:55 UTCJul 22, 14:35 UTC1h 40m
2026-07-22 BAW7LN - Jul 22, 11:10 UTCJul 22, 11:50 UTC40m
2026-07-21 BAW590 LHR → MXP Jul 21, 20:05 UTCJul 21, 21:35 UTC1h 30m
2026-07-21 BAW577 FCO → LHR Jul 21, 16:40 UTCJul 21, 18:20 UTC1h 40m
2026-07-21 BAW576 - Jul 21, 14:05 UTCJul 21, 16:35 UTC2h 30m
2026-07-21 BAW475E BCN → LHR Jul 21, 10:30 UTCJul 21, 12:20 UTC1h 50m
2026-07-21 BAW474K LHR → BCN Jul 21, 07:20 UTCJul 21, 08:55 UTC1h 35m
2026-07-20 SHT19G ABZ → LHR Jul 20, 19:10 UTCJul 20, 20:10 UTC1h 0m
2026-07-20 SHT18E LHR → ABZ Jul 20, 17:00 UTCJul 20, 18:05 UTC1h 5m
2026-07-20 BAW30N - Jul 20, 14:20 UTCJul 20, 15:05 UTC45m
2026-07-20 BAW4DC LGW → CDG Jul 20, 12:15 UTCJul 20, 12:50 UTC35m
2026-07-20 SHT3P MAN → LHR Jul 20, 08:25 UTCJul 20, 09:05 UTC40m
2026-07-20 SHT2V - Jul 20, 06:05 UTCJul 20, 06:40 UTC35m
2026-07-19 BAW391 BRU → LHR Jul 19, 19:05 UTCJul 19, 19:50 UTC45m
2026-07-19 BAW9LL LHR → BRU Jul 19, 17:10 UTCJul 19, 17:55 UTC45m
2026-07-19 BAW43XP AMS → LHR Jul 19, 14:35 UTCJul 19, 15:35 UTC1h 0m
2026-07-19 BAW3ET LHR → AMS Jul 19, 12:15 UTCJul 19, 13:00 UTC45m
2026-07-19 SHT19S ABZ → LHR Jul 19, 09:25 UTCJul 19, 10:30 UTC1h 5m
2026-07-19 SHT18K LHR → ABZ Jul 19, 07:15 UTCJul 19, 08:20 UTC1h 5m
2026-07-18 SHT9W - Jul 18, 18:45 UTCJul 18, 19:35 UTC50m
2026-07-18 SHT8B - Jul 18, 16:45 UTCJul 18, 17:40 UTC55m
2026-07-18 BAW471 - Jul 18, 13:05 UTCJul 18, 15:15 UTC2h 10m
2026-07-18 BAW470 - Jul 18, 10:00 UTCJul 18, 11:50 UTC1h 50m
2026-07-18 BAW591 VCE → LHR Jul 18, 06:30 UTCJul 18, 08:05 UTC1h 35m
2026-07-17 BAW590 LHR → MXP Jul 17, 20:10 UTCJul 17, 21:44 UTC1h 35m
2026-07-17 BAW73V ZRH → LHR Jul 17, 17:20 UTCJul 17, 18:50 UTC1h 30m
2026-07-17 BAW736 - Jul 17, 13:45 UTCJul 17, 15:05 UTC1h 20m
2026-07-17 SHT9B EDI → LHR Jul 17, 10:44 UTCJul 17, 11:50 UTC1h 5m
2026-07-17 SHT8R LHR → EDI Jul 17, 08:15 UTCJul 17, 09:15 UTC1h 0m
2026-07-16 BAW14GM LIN → LHR Jul 16, 20:45 UTCJul 16, 22:15 UTC1h 30m

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

Mode-S 4008AE frequently asked

What is Mode-S code 4008AE?
4008AE is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUPO.
Where is Mode-S 4008AE registered?
Mode-S code 4008AE 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 4008AE broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4008AE, octal 20004256, decimal 4,196,526.
What flights does 4008AE operate?
Mode-S 4008AE has broadcast 20 distinct callsigns, including SHT22A, BAW61XM, BAW741, BAW740, BAW4DC.