Apparatus

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sensors Mode-S transponder

40474E

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EEGU · PIPER PA-28-140/150/160/180

Hex
40474E
Octal
20043516
Decimal
4,212,558
Country
GB
Tail
G-EEGU
Type
P28A
No current signal · last broadcast 2h ago
Flights observed
80
Distinct callsigns
1
Country
GB
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 40474E.

Country allocation

The ICAO 24-bit address 40474E 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 1 distinct

Callsign Airline Flights Last seen
GEEGU - 80 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-14 GEEGU NWI → NWI Jun 14, 16:55 UTCJun 14, 17:35 UTC40m
2026-06-14 GEEGU - Jun 14, 15:05 UTCJun 14, 15:45 UTC40m
2026-06-14 GEEGU - Jun 14, 12:25 UTCJun 14, 13:15 UTC50m
2026-06-14 GEEGU - Jun 14, 10:30 UTCJun 14, 11:15 UTC45m
2026-06-13 GEEGU NWI → NWI Jun 13, 16:50 UTCJun 13, 17:35 UTC45m
2026-06-13 GEEGU - Jun 13, 15:00 UTCJun 13, 15:55 UTC55m
2026-06-13 GEEGU - Jun 13, 13:10 UTCJun 13, 14:05 UTC55m
2026-06-13 GEEGU - Jun 13, 11:20 UTCJun 13, 12:10 UTC50m
2026-06-13 GEEGU NWI → NWI Jun 13, 08:15 UTCJun 13, 09:40 UTC1h 25m
2026-06-12 GEEGU NWI → NWI Jun 12, 16:10 UTCJun 12, 17:00 UTC50m
2026-06-12 GEEGU NWI → NWI Jun 12, 14:25 UTCJun 12, 15:00 UTC35m
2026-06-12 GEEGU - Jun 12, 11:15 UTCJun 12, 12:10 UTC55m
2026-06-11 GEEGU - Jun 11, 10:05 UTCJun 11, 10:20 UTC15m
2026-06-10 GEEGU - Jun 10, 11:50 UTCJun 10, 12:05 UTC15m
2026-06-10 GEEGU - Jun 10, 10:35 UTCJun 10, 11:20 UTC45m
2026-06-10 GEEGU - Jun 10, 08:40 UTCJun 10, 09:35 UTC55m
2026-06-09 GEEGU - Jun 9, 12:15 UTCJun 9, 12:35 UTC20m
2026-06-08 GEEGU - Jun 8, 07:00 UTCJun 8, 07:10 UTC10m
2026-06-07 GEEGU - Jun 7, 15:45 UTCJun 7, 16:35 UTC50m
2026-06-07 GEEGU - Jun 7, 14:25 UTCJun 7, 15:10 UTC45m
2026-06-07 GEEGU - Jun 7, 12:40 UTCJun 7, 13:50 UTC1h 10m
2026-06-07 GEEGU - Jun 7, 10:00 UTCJun 7, 10:35 UTC35m
2026-06-07 GEEGU NWI → NWI Jun 7, 08:10 UTCJun 7, 08:55 UTC45m
2026-06-06 GEEGU - Jun 6, 09:39 UTCJun 6, 09:55 UTC15m
2026-06-05 GEEGU NWI → NWI Jun 5, 16:05 UTCJun 5, 16:45 UTC40m
2026-06-05 GEEGU - Jun 5, 14:30 UTCJun 5, 15:00 UTC30m
2026-06-05 GEEGU NWI → NWI Jun 5, 10:00 UTCJun 5, 12:10 UTC2h 10m
2026-06-03 GEEGU - Jun 3, 11:00 UTCJun 3, 12:05 UTC1h 5m
2026-06-03 GEEGU - Jun 3, 09:20 UTCJun 3, 09:50 UTC30m
2026-05-31 GEEGU - May 31, 16:00 UTCMay 31, 17:00 UTC1h 0m
2026-05-30 GEEGU - May 30, 12:00 UTCMay 30, 13:15 UTC1h 15m
2026-05-30 GEEGU - May 30, 09:50 UTCMay 30, 10:40 UTC50m
2026-05-29 GEEGU - May 29, 14:45 UTCMay 29, 16:25 UTC1h 40m
2026-05-29 GEEGU - May 29, 12:35 UTCMay 29, 13:15 UTC40m
2026-05-29 GEEGU - May 29, 08:45 UTCMay 29, 10:35 UTC1h 50m
2026-05-28 GEEGU - May 28, 15:40 UTCMay 28, 16:00 UTC20m
2026-05-28 GEEGU - May 28, 14:15 UTCMay 28, 15:00 UTC45m
2026-05-28 GEEGU - May 28, 11:30 UTCMay 28, 12:50 UTC1h 20m
2026-05-28 GEEGU NWI → ESH May 28, 08:30 UTCMay 28, 10:25 UTC1h 55m
2026-05-27 GEEGU - May 27, 16:15 UTCMay 27, 16:55 UTC40m
2026-05-27 GEEGU NWI → NWI May 27, 14:20 UTCMay 27, 15:10 UTC50m
2026-05-27 GEEGU - May 27, 12:15 UTCMay 27, 12:45 UTC30m
2026-05-27 GEEGU - May 27, 09:55 UTCMay 27, 10:30 UTC35m
2026-05-27 GEEGU - May 27, 08:10 UTCMay 27, 09:05 UTC55m
2026-05-26 GEEGU - May 26, 17:50 UTCMay 26, 18:05 UTC15m
2026-05-23 GEEGU - May 23, 10:35 UTCMay 23, 11:20 UTC45m
2026-05-22 GEEGU NWI → NWI May 22, 11:15 UTCMay 22, 12:55 UTC1h 40m
2026-05-21 GEEGU - May 21, 16:55 UTCMay 21, 17:30 UTC35m
2026-05-21 GEEGU - May 21, 15:35 UTCMay 21, 16:20 UTC45m
2026-05-21 GEEGU - May 21, 12:25 UTCMay 21, 14:15 UTC1h 50m

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

Mode-S 40474E frequently asked

What is Mode-S code 40474E?
40474E is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EEGU.
Where is Mode-S 40474E registered?
Mode-S code 40474E 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 40474E broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40474E, octal 20043516, decimal 4,212,558.
What flights does 40474E operate?
Mode-S 40474E has broadcast 1 distinct callsign, including GEEGU.