Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

403EE3

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-BXPD · DIAMOND DA-20

Hex
403EE3
Octal
20037343
Decimal
4,210,403
Country
GB
Tail
G-BXPD
Type
DV20
No current signal · last broadcast 5h ago
Flights observed
38
Distinct callsigns
1
Country
GB
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 403EE3.

Country allocation

The ICAO 24-bit address 403EE3 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
GBXPD - 38 2026-06-20

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-06-20 GBXPD - Jun 20, 11:09 UTCJun 20, 11:34 UTC25m
2026-06-19 GBXPD - Jun 19, 16:39 UTCJun 19, 16:59 UTC20m
2026-06-19 GBXPD - Jun 19, 15:14 UTCJun 19, 15:44 UTC30m
2026-06-19 GBXPD - Jun 19, 13:50 UTCJun 19, 14:34 UTC45m
2026-06-19 GBXPD - Jun 19, 12:19 UTCJun 19, 13:04 UTC45m
2026-06-19 GBXPD - Jun 19, 10:44 UTCJun 19, 11:24 UTC40m
2026-06-19 GBXPD - Jun 19, 08:54 UTCJun 19, 09:40 UTC45m
2026-06-18 GBXPD - Jun 18, 14:05 UTCJun 18, 14:30 UTC25m
2026-06-18 GBXPD - Jun 18, 11:35 UTCJun 18, 12:45 UTC1h 10m
2026-06-17 GBXPD - Jun 17, 12:40 UTCJun 17, 12:55 UTC15m
2026-06-16 GBXPD - Jun 16, 10:15 UTCJun 16, 10:30 UTC15m
2026-06-14 GBXPD - Jun 14, 11:05 UTCJun 14, 11:35 UTC30m
2026-06-14 GBXPD - Jun 14, 09:35 UTCJun 14, 10:15 UTC40m
2026-06-13 GBXPD - Jun 13, 15:40 UTCJun 13, 16:50 UTC1h 10m
2026-06-13 GBXPD - Jun 13, 14:40 UTCJun 13, 15:05 UTC25m
2026-06-13 GBXPD - Jun 13, 09:00 UTCJun 13, 10:00 UTC1h 0m
2026-06-12 GBXPD - Jun 12, 14:30 UTCJun 12, 15:10 UTC40m
2026-06-12 GBXPD - Jun 12, 12:40 UTCJun 12, 13:00 UTC20m
2026-06-12 GBXPD - Jun 12, 11:15 UTCJun 12, 12:05 UTC50m
2026-06-12 GBXPD - Jun 12, 08:55 UTCJun 12, 09:45 UTC50m
2026-06-11 GBXPD - Jun 11, 08:55 UTCJun 11, 09:40 UTC45m
2026-06-10 GBXPD - Jun 10, 17:00 UTCJun 10, 17:55 UTC55m
2026-06-10 GBXPD - Jun 10, 11:25 UTCJun 10, 11:55 UTC30m
2026-06-10 GBXPD - Jun 10, 10:00 UTCJun 10, 10:30 UTC30m
2026-05-10 GBXPD - May 10, 13:55 UTCMay 10, 15:29 UTC1h 35m
2026-05-09 GBXPD - May 9, 13:05 UTCMay 9, 13:35 UTC30m
2026-05-09 GBXPD - May 9, 11:05 UTCMay 9, 11:40 UTC35m
2026-05-08 GBXPD - May 8, 13:10 UTCMay 8, 15:05 UTC1h 55m
2026-05-07 GBXPD - May 7, 15:30 UTCMay 7, 16:10 UTC40m
2026-05-07 GBXPD - May 7, 12:55 UTCMay 7, 13:35 UTC40m
2026-05-07 GBXPD - May 7, 11:15 UTCMay 7, 12:05 UTC50m
2026-05-06 GBXPD - May 6, 15:15 UTCMay 6, 15:45 UTC30m
2026-05-06 GBXPD - May 6, 14:00 UTCMay 6, 14:30 UTC30m
2026-05-06 GBXPD - May 6, 12:01 UTCMay 6, 12:45 UTC45m
2026-05-05 GBXPD - May 5, 13:15 UTCMay 5, 14:00 UTC45m
2026-05-05 GBXPD - May 5, 11:20 UTCMay 5, 12:25 UTC1h 5m
2026-05-05 GBXPD - May 5, 09:10 UTCMay 5, 10:10 UTC1h 0m
2026-05-03 GBXPD - May 3, 12:25 UTCMay 3, 13:30 UTC1h 5m

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

Mode-S 403EE3 frequently asked

What is Mode-S code 403EE3?
403EE3 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-BXPD.
Where is Mode-S 403EE3 registered?
Mode-S code 403EE3 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 403EE3 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 403EE3, octal 20037343, decimal 4,210,403.
What flights does 403EE3 operate?
Mode-S 403EE3 has broadcast 1 distinct callsign, including GBXPD.