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sensors Mode-S transponder

407D4E

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-DWYP · BEST OFF Nynja

Hex
407D4E
Octal
20076516
Decimal
4,226,382
Country
GB
Tail
G-DWYP
Type
NNJA
No current signal · last broadcast 4h ago
Flights observed
91
Distinct callsigns
1
Country
GB
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 407D4E.

Country allocation

The ICAO 24-bit address 407D4E 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
GDWYP - 91 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 GDWYP - Jul 18, 14:40 UTCJul 18, 15:15 UTC35m
2026-07-18 GDWYP - Jul 18, 12:50 UTCJul 18, 13:30 UTC40m
2026-07-17 GDWYP - Jul 17, 11:20 UTCJul 17, 11:35 UTC15m
2026-07-17 GDWYP - Jul 17, 08:54 UTCJul 17, 09:10 UTC15m
2026-07-16 GDWYP - Jul 16, 10:55 UTCJul 16, 11:40 UTC45m
2026-07-15 GDWYP - Jul 15, 19:05 UTCJul 15, 19:20 UTC15m
2026-07-15 GDWYP - Jul 15, 16:25 UTCJul 15, 16:45 UTC20m
2026-07-15 GDWYP - Jul 15, 14:15 UTCJul 15, 15:05 UTC50m
2026-07-14 GDWYP - Jul 14, 13:50 UTCJul 14, 15:05 UTC1h 15m
2026-07-14 GDWYP - Jul 14, 10:10 UTCJul 14, 11:20 UTC1h 10m
2026-07-11 GDWYP - Jul 11, 12:30 UTCJul 11, 13:25 UTC55m
2026-07-11 GDWYP - Jul 11, 09:30 UTCJul 11, 10:40 UTC1h 10m
2026-07-10 GDWYP - Jul 10, 18:10 UTCJul 10, 19:35 UTC1h 25m
2026-07-10 GDWYP - Jul 10, 09:25 UTCJul 10, 09:40 UTC15m
2026-07-09 GDWYP - Jul 9, 18:35 UTCJul 9, 19:45 UTC1h 10m
2026-07-09 GDWYP - Jul 9, 10:50 UTCJul 9, 12:00 UTC1h 10m
2026-07-09 GDWYP - Jul 9, 08:35 UTCJul 9, 10:05 UTC1h 30m
2026-07-08 GDWYP - Jul 8, 10:10 UTCJul 8, 12:40 UTC2h 30m
2026-07-08 GDWYP - Jul 8, 07:10 UTCJul 8, 08:20 UTC1h 10m
2026-07-01 GDWYP - Jul 1, 10:40 UTCJul 1, 11:25 UTC45m
2026-07-01 GDWYP - Jul 1, 09:00 UTCJul 1, 09:40 UTC40m
2026-06-30 GDWYP - Jun 30, 14:50 UTCJun 30, 15:10 UTC20m
2026-06-27 GDWYP - Jun 27, 09:00 UTCJun 27, 09:09 UTC10m
2026-06-27 GDWYP - Jun 27, 07:24 UTCJun 27, 08:25 UTC1h 0m
2026-06-25 GDWYP - Jun 25, 18:00 UTCJun 25, 19:44 UTC1h 45m
2026-06-25 GDWYP - Jun 25, 12:15 UTCJun 25, 13:24 UTC1h 10m
2026-06-25 GDWYP - Jun 25, 08:14 UTCJun 25, 09:10 UTC55m
2026-06-24 GDWYP - Jun 24, 18:25 UTCJun 24, 19:34 UTC1h 10m
2026-06-23 GDWYP - Jun 23, 08:25 UTCJun 23, 09:54 UTC1h 30m
2026-06-21 GDWYP - Jun 21, 17:24 UTCJun 21, 18:29 UTC1h 5m
2026-06-21 GDWYP - Jun 21, 11:59 UTCJun 21, 12:19 UTC20m
2026-06-21 GDWYP - Jun 21, 10:19 UTCJun 21, 10:49 UTC30m
2026-06-21 GDWYP - Jun 21, 09:04 UTCJun 21, 09:40 UTC35m
2026-06-20 GDWYP - Jun 20, 20:05 UTCJun 20, 20:29 UTC25m
2026-06-20 GDWYP - Jun 20, 14:29 UTCJun 20, 14:44 UTC15m
2026-06-20 GDWYP - Jun 20, 11:40 UTCJun 20, 12:14 UTC35m
2026-06-20 GDWYP - Jun 20, 09:34 UTCJun 20, 10:09 UTC35m
2026-06-18 GDWYP - Jun 18, 10:55 UTCJun 18, 11:20 UTC25m
2026-06-18 GDWYP - Jun 18, 09:10 UTCJun 18, 09:45 UTC35m
2026-06-17 GDWYP - Jun 17, 17:40 UTCJun 17, 18:15 UTC35m
2026-06-15 GDWYP - Jun 15, 16:35 UTCJun 15, 17:34 UTC1h 0m
2026-06-15 GDWYP - Jun 15, 15:04 UTCJun 15, 15:59 UTC55m
2026-06-15 GDWYP - Jun 15, 14:00 UTCJun 15, 14:24 UTC25m
2026-06-15 GDWYP - Jun 15, 12:35 UTCJun 15, 12:45 UTC10m
2026-06-15 GDWYP - Jun 15, 11:19 UTCJun 15, 11:45 UTC25m
2026-06-15 GDWYP - Jun 15, 09:25 UTCJun 15, 09:54 UTC30m
2026-06-14 GDWYP - Jun 14, 17:55 UTCJun 14, 18:35 UTC40m
2026-06-14 GDWYP - Jun 14, 14:05 UTCJun 14, 14:45 UTC40m
2026-06-14 GDWYP - Jun 14, 12:40 UTCJun 14, 13:10 UTC30m
2026-06-14 GDWYP - Jun 14, 10:25 UTCJun 14, 11:15 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-DWYP page for operator, model, and routing details .

Mode-S 407D4E frequently asked

What is Mode-S code 407D4E?
407D4E is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-DWYP.
Where is Mode-S 407D4E registered?
Mode-S code 407D4E 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 407D4E 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 407D4E, octal 20076516, decimal 4,226,382.
What flights does 407D4E operate?
Mode-S 407D4E has broadcast 1 distinct callsign, including GDWYP.