Apparatus

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sensors Mode-S transponder

407FEA

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-WUKY · AIRBUS A-321neo

Hex
407FEA
Octal
20077752
Decimal
4,227,050
Country
GB
Tail
G-WUKY
Type
A21N
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
451
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S 407FEA.

Country allocation

The ICAO 24-bit address 407FEA 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
WUK7VJ - 17 2026-07-26
WUK6090 - 16 2026-07-26
WUK9836 - 14 2026-07-25
WUK9224 - 14 2026-07-25
WUK75 Wizz Air UK 11 2026-07-25
WUK597 - 10 2026-07-13
WUK441 - 10 2026-07-25
WUK9UG - 9 2026-07-19
WUK825 - 9 2026-07-13
WUK7PY - 9 2026-07-21
WUK73 - 9 2026-07-21
WUK712 - 9 2026-07-19
WUK8PY - 7 2026-07-24
WUK6HU - 7 2026-06-25
WUK6587 - 7 2026-07-22
WUK975 - 6 2026-07-24
WUK8YM Wizz Air UK 6 2026-07-24
WUK7JA - 6 2026-06-30
WUK744 - 6 2026-06-30
WUK70 - 6 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WUK89VK AGP → LGW Jul 26, 19:20 UTCJul 26, 21:45 UTC2h 25m
2026-07-26 WUK71KJ LGW → AGP Jul 26, 15:40 UTCJul 26, 17:50 UTC2h 10m
2026-07-26 WUK6090 FAO → LGW Jul 26, 11:50 UTCJul 26, 14:25 UTC2h 35m
2026-07-26 WUK7VJ LGW → FAO Jul 26, 07:45 UTCJul 26, 10:00 UTC2h 15m
2026-07-25 WUK75 LTN → LTN Jul 25, 18:00 UTCJul 25, 21:25 UTC3h 25m
2026-07-25 WUK441 - Jul 25, 13:15 UTCJul 25, 16:25 UTC3h 10m
2026-07-25 WUK9224 - Jul 25, 09:05 UTCJul 25, 11:20 UTC2h 15m
2026-07-25 WUK9836 - Jul 25, 05:15 UTCJul 25, 07:35 UTC2h 20m
2026-07-24 WUK8YM TIA → LGW Jul 24, 22:35 UTCJul 25, 01:05 UTC2h 30m
2026-07-24 WUK975 - Jul 24, 19:00 UTCJul 24, 21:10 UTC2h 10m
2026-07-24 WUK312 PRG → LGW Jul 24, 15:50 UTCJul 24, 17:30 UTC1h 40m
2026-07-24 WUK8PY LGW → PRG Jul 24, 13:10 UTCJul 24, 14:50 UTC1h 40m
2026-07-24 WUK9224 - Jul 24, 09:10 UTCJul 24, 11:20 UTC2h 10m
2026-07-24 WUK9836 - Jul 24, 05:00 UTCJul 24, 07:30 UTC2h 30m
2026-07-23 WUK75 LTN → LTN Jul 23, 17:35 UTCJul 23, 21:00 UTC3h 25m
2026-07-23 WUK441 - Jul 23, 13:00 UTCJul 23, 16:10 UTC3h 10m
2026-07-23 WUK9224 - Jul 23, 08:55 UTCJul 23, 11:15 UTC2h 20m
2026-07-23 WUK9836 LGW → AGP Jul 23, 04:50 UTCJul 23, 07:15 UTC2h 25m
2026-07-22 WUK89VK AGP → LGW Jul 22, 19:05 UTCJul 22, 21:40 UTC2h 35m
2026-07-22 WUK71KJ LGW → AGP Jul 22, 15:25 UTCJul 22, 17:45 UTC2h 20m
2026-07-22 WUK6587 VLC → LGW Jul 22, 11:20 UTCJul 22, 13:25 UTC2h 5m
2026-07-21 WUK7PY - Jul 21, 21:05 UTCJul 22, 01:00 UTC3h 55m
2026-07-21 WUK73 - Jul 21, 16:15 UTCJul 21, 19:35 UTC3h 20m
2026-07-21 WUK6090 FAO → LGW Jul 21, 10:45 UTCJul 21, 13:10 UTC2h 25m
2026-07-21 WUK7VJ LGW → FAO Jul 21, 06:55 UTCJul 21, 09:20 UTC2h 25m
2026-07-20 WUK89VK AGP → LGW Jul 20, 21:15 UTCJul 20, 23:25 UTC2h 10m
2026-07-20 WUK71KJ LGW → AGP Jul 20, 17:40 UTCJul 20, 20:00 UTC2h 20m
2026-07-20 WUK6587 VLC → LGW Jul 20, 13:05 UTCJul 20, 15:20 UTC2h 15m
2026-07-20 WUK2TN LGW → VLC Jul 20, 10:00 UTCJul 20, 11:50 UTC1h 50m
2026-07-19 WUK7AK - Jul 19, 17:55 UTCJul 19, 21:35 UTC3h 40m
2026-07-19 WUK6SQ - Jul 19, 13:45 UTCJul 19, 16:50 UTC3h 5m
2026-07-19 WUK9UG - Jul 19, 09:10 UTCJul 19, 11:50 UTC2h 40m
2026-07-19 WUK712 - Jul 19, 05:35 UTCJul 19, 07:35 UTC2h 0m
2026-07-18 WUK75 LTN → LTN Jul 18, 18:00 UTCJul 18, 21:35 UTC3h 35m
2026-07-18 WUK441 - Jul 18, 13:30 UTCJul 18, 16:35 UTC3h 5m
2026-07-18 WUK9224 - Jul 18, 09:10 UTCJul 18, 11:40 UTC2h 30m
2026-07-18 WUK9836 - Jul 18, 05:25 UTCJul 18, 07:45 UTC2h 20m
2026-07-17 WUK75 LTN → LTN Jul 17, 18:15 UTCJul 17, 21:44 UTC3h 30m
2026-07-17 WUK441 - Jul 17, 13:05 UTCJul 17, 16:10 UTC3h 5m
2026-07-17 WUK9224 - Jul 17, 09:10 UTCJul 17, 11:25 UTC2h 15m
2026-07-17 WUK9836 - Jul 17, 04:59 UTCJul 17, 07:35 UTC2h 35m
2026-07-16 WUK75 - Jul 16, 17:45 UTCJul 16, 21:19 UTC3h 35m
2026-07-16 WUK441 - Jul 16, 13:00 UTCJul 16, 16:09 UTC3h 10m
2026-07-16 WUK9224 - Jul 16, 09:00 UTCJul 16, 11:20 UTC2h 20m
2026-07-16 WUK9836 - Jul 16, 04:45 UTCJul 16, 07:15 UTC2h 30m
2026-07-15 WUK312 PRG → LGW Jul 15, 15:55 UTCJul 15, 17:45 UTC1h 50m
2026-07-15 WUK8PY LGW → PRG Jul 15, 13:20 UTCJul 15, 14:50 UTC1h 30m
2026-07-15 WUK9UG - Jul 15, 08:35 UTCJul 15, 11:15 UTC2h 40m
2026-07-15 WUK712 - Jul 15, 04:50 UTCJul 15, 06:55 UTC2h 5m
2026-07-14 WUK6587 VLC → LGW Jul 14, 10:55 UTCJul 14, 13:05 UTC2h 10m

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

Mode-S 407FEA frequently asked

What is Mode-S code 407FEA?
407FEA is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-WUKY.
Where is Mode-S 407FEA registered?
Mode-S code 407FEA 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 407FEA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407FEA, octal 20077752, decimal 4,227,050.
What flights does 407FEA operate?
Mode-S 407FEA has broadcast 20 distinct callsigns, including WUK7VJ, WUK6090, WUK9836, WUK9224, WUK75.