Apparatus

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sensors Mode-S transponder

400AFD

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUXE · AIRBUS A-321

Hex
400AFD
Octal
20005375
Decimal
4,197,117
Country
GB
Tail
G-EUXE
Type
A321
Broadcasting now · callsign EFW44X · 32,975 ft
Flights observed
370
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:15 UTC

Current position

400AFD is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 400AFD 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
EFW64C BA Euroflyer 16 2026-07-24
EFW2BZ BA Euroflyer 15 2026-07-24
EFW29WB BA Euroflyer 11 2026-07-21
EFW26CX - 11 2026-07-21
EFW1FG BA Euroflyer 11 2026-07-21
EFW16PH - 11 2026-07-21
EFW12LS - 8 2026-07-08
EFW9RZ - 7 2026-07-08
EFW83SY - 7 2026-07-21
EFW74JG - 6 2026-06-22
EFW5SL - 6 2026-07-02
EFW53CV - 6 2026-07-01
EFW461M - 6 2026-07-02
EFW42YR - 6 2026-07-12
EFW29CF - 6 2026-07-01
EFW23SM - 6 2026-06-22
EFW17EA BA Euroflyer 6 2026-07-26
EFW16EA BA Euroflyer 6 2026-07-26
EFW15AV - 6 2026-07-12
EFW147P - 6 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EFW17EA MLA → LGW Jul 26, 20:10 UTCJul 26, 21:15 UTC1h 5m
2026-07-26 EFW16EA LGW → MLA Jul 26, 16:20 UTCJul 26, 18:55 UTC2h 35m
2026-07-26 EFW34VK - Jul 26, 10:15 UTCJul 26, 12:35 UTC2h 20m
2026-07-26 EFW5QQ - Jul 26, 06:35 UTCJul 26, 08:45 UTC2h 10m
2026-07-25 EFW7JD AGP → LGW Jul 25, 21:35 UTCJul 25, 23:35 UTC2h 0m
2026-07-25 EFW7EL LGW → PMI Jul 25, 18:10 UTCJul 25, 19:55 UTC1h 45m
2026-07-25 EFW4FI RHO → LGW Jul 25, 12:00 UTCJul 25, 16:10 UTC4h 10m
2026-07-25 EFW44X LGW → RHO Jul 25, 07:00 UTCJul 25, 10:30 UTC3h 30m
2026-07-24 EFW6RQ HER → LGW Jul 24, 19:05 UTCJul 24, 22:40 UTC3h 35m
2026-07-24 EFW5QL LGW → HER Jul 24, 14:25 UTCJul 24, 17:25 UTC3h 0m
2026-07-24 EFW64C AGP → LGW Jul 24, 10:05 UTCJul 24, 12:20 UTC2h 15m
2026-07-24 EFW2BZ LGW → AGP Jul 24, 06:30 UTCJul 24, 09:00 UTC2h 30m
2026-07-23 EFW75H FAO → LGW Jul 23, 18:50 UTCJul 23, 21:05 UTC2h 15m
2026-07-23 EFW3TW LGW → FAO Jul 23, 15:25 UTCJul 23, 17:50 UTC2h 25m
2026-07-23 EFW91BM CFU → LGW Jul 23, 11:00 UTCJul 23, 13:50 UTC2h 50m
2026-07-23 EFW9UQ LGW → CFU Jul 23, 06:40 UTCJul 23, 09:00 UTC2h 20m
2026-07-22 EFW2BS RBA → LGW Jul 22, 18:30 UTCJul 22, 20:55 UTC2h 25m
2026-07-22 EFW1BS LGW → RBA Jul 22, 14:45 UTCJul 22, 17:30 UTC2h 45m
2026-07-21 EFW29WB AGP → LGW Jul 21, 19:30 UTCJul 21, 21:45 UTC2h 15m
2026-07-21 EFW26CX - Jul 21, 15:35 UTCJul 21, 17:55 UTC2h 20m
2026-07-21 EFW1FG FAO → LGW Jul 21, 11:25 UTCJul 21, 13:45 UTC2h 20m
2026-07-21 EFW16PH LGW → FAO Jul 21, 07:30 UTCJul 21, 09:55 UTC2h 25m
2026-07-21 EFW83SY - Jul 21, 02:35 UTCJul 21, 02:50 UTC15m
2026-07-20 EFW83SY RHO → LGW Jul 20, 20:05 UTCJul 20, 23:50 UTC3h 45m
2026-07-20 EFW147P LGW → RHO Jul 20, 15:10 UTCJul 20, 18:30 UTC3h 20m
2026-07-20 EFW34VK - Jul 20, 10:20 UTCJul 20, 13:05 UTC2h 45m
2026-07-20 EFW5QQ LGW → BRI Jul 20, 06:35 UTCJul 20, 09:10 UTC2h 35m
2026-07-19 EFW9ED - Jul 19, 20:05 UTCJul 19, 22:20 UTC2h 15m
2026-07-19 EFW7HH LGW → ALC Jul 19, 16:15 UTCJul 19, 18:25 UTC2h 10m
2026-07-19 EFW2BS RBA → LGW Jul 19, 11:40 UTCJul 19, 14:20 UTC2h 40m
2026-07-19 EFW1BS - Jul 19, 07:40 UTCJul 19, 10:30 UTC2h 50m
2026-07-18 EFW29WB - Jul 18, 21:50 UTCJul 19, 00:05 UTC2h 15m
2026-07-18 EFW26CX - Jul 18, 18:05 UTCJul 18, 20:25 UTC2h 20m
2026-07-18 EFW74V KGS → LGW Jul 18, 11:45 UTCJul 18, 15:30 UTC3h 45m
2026-07-18 EFW81W LGW → KGS Jul 18, 06:30 UTCJul 18, 09:50 UTC3h 20m
2026-07-17 EFW584Y - Jul 17, 18:05 UTCJul 17, 20:29 UTC2h 25m
2026-07-17 EFW44VD - Jul 17, 14:39 UTCJul 17, 16:55 UTC2h 15m
2026-07-17 EFW86R - Jul 17, 09:50 UTCJul 17, 12:55 UTC3h 5m
2026-07-17 EFW82X LGW → SKG Jul 17, 06:00 UTCJul 17, 08:35 UTC2h 35m
2026-07-16 EFW169K NCE → LGW Jul 16, 18:50 UTCJul 16, 20:19 UTC1h 30m
2026-07-16 EFW89WH LGW → NCE Jul 16, 15:40 UTCJul 16, 17:10 UTC1h 30m
2026-07-16 EFW91BM - Jul 16, 11:10 UTCJul 16, 13:54 UTC2h 45m
2026-07-16 EFW9UQ - Jul 16, 06:55 UTCJul 16, 09:05 UTC2h 10m
2026-07-15 EFW7JD - Jul 15, 20:35 UTCJul 15, 22:35 UTC2h 0m
2026-07-15 EFW7EL - Jul 15, 17:30 UTCJul 15, 19:15 UTC1h 45m
2026-07-15 EFW69BK AYT → LGW Jul 15, 11:30 UTCJul 15, 15:45 UTC4h 15m
2026-07-15 EFW67A LGW → AYT Jul 15, 06:15 UTCJul 15, 09:35 UTC3h 20m
2026-07-14 EFW193M - Jul 14, 22:05 UTCJul 15, 00:55 UTC2h 49m
2026-07-14 EFW73AW - Jul 14, 18:10 UTCJul 14, 20:40 UTC2h 30m
2026-07-14 EFW64C - Jul 14, 10:45 UTCJul 14, 13:00 UTC2h 15m

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

Mode-S 400AFD frequently asked

What is Mode-S code 400AFD?
400AFD is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUXE.
Where is Mode-S 400AFD registered?
Mode-S code 400AFD 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 400AFD broadcasting right now?
Yes. Mode-S 400AFD is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 400AFD, octal 20005375, decimal 4,197,117.
What flights does 400AFD operate?
Mode-S 400AFD has broadcast 20 distinct callsigns, including EFW64C, EFW2BZ, EFW29WB, EFW26CX, EFW1FG.