sensors Mode-S transponder

407AF4

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-XWBK · AIRBUS A-350-1000

Hex
407AF4
Octal
20075364
Decimal
4,225,780
Country
GB
Tail
G-XWBK
Type
A35K
No current signal · last broadcast 4h ago
Flights observed
94
Distinct callsigns
20
Country
GB
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 407AF4.

Country allocation

The ICAO 24-bit address 407AF4 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW246 GRU → LHR May 29, 18:45 UTCMay 29, 21:40 UTC2h 55m
2026-05-28 BAW247 LHR → GRU May 28, 21:55 UTCMay 29, 09:00 UTC11h 5m
2026-05-28 BAW4LV LAS → LHR May 28, 05:30 UTCMay 28, 15:20 UTC9h 50m
2026-05-27 BAW2MW LHR → LAS May 27, 16:45 UTCMay 28, 02:40 UTC9h 55m
2026-05-26 BAW19W AUS → LHR May 26, 23:10 UTCMay 27, 08:00 UTC8h 50m
2026-05-26 BAW91C LHR → AUS May 26, 10:50 UTCMay 26, 20:29 UTC9h 40m
2026-05-25 BAW32 HKG → LHR May 25, 23:54 UTCMay 26, 05:05 UTC5h 10m
2026-05-25 BAW32 HKG → LHR May 25, 15:10 UTCMay 25, 15:30 UTC20m
2026-05-25 BAW31 LHR → HKG May 25, 07:00 UTCMay 25, 07:35 UTC35m
2026-05-24 BAW31 LHR → HKG May 24, 19:00 UTCMay 25, 02:30 UTC7h 30m
2026-05-24 BAW8 HND → LHR May 24, 00:20 UTCMay 24, 14:25 UTC14h 5m
2026-05-23 BAW7 LHR → HND May 23, 08:50 UTCMay 23, 21:45 UTC12h 56m
2026-05-22 BAW246 GRU → LHR May 22, 21:20 UTCMay 23, 05:35 UTC8h 15m
2026-05-22 BAW246 GRU → LHR May 22, 19:00 UTCMay 22, 19:25 UTC25m
2026-05-21 BAW247 LHR → GRU May 21, 22:05 UTCMay 22, 09:20 UTC11h 15m
2026-05-21 BAW3GB PHX → LHR May 21, 04:20 UTCMay 21, 13:10 UTC8h 50m
2026-05-20 BAW9CG LHR → PHX May 20, 15:45 UTCMay 21, 01:50 UTC10h 5m
2026-05-19 BAW21ML DEN → LHR May 19, 05:10 UTCMay 19, 13:05 UTC7h 55m
2026-05-18 BAW219V LHR → DEN May 18, 17:20 UTCMay 19, 02:45 UTC9h 24m
2026-05-18 BAW22E BNA → LHR May 18, 02:50 UTCMay 18, 10:25 UTC7h 35m
2026-05-17 BAW223N LHR → BNA May 17, 16:05 UTCMay 18, 00:15 UTC8h 10m
2026-05-15 BAW246 GRU → LHR May 15, 19:25 UTCMay 16, 05:56 UTC10h 31m
2026-05-14 BAW247 LHR → GRU May 14, 22:05 UTCMay 15, 08:40 UTC10h 35m
2026-05-14 BAW3GB PHX → LHR May 14, 07:55 UTCMay 14, 17:25 UTC9h 30m
2026-05-13 BAW9CG LHR → PHX May 13, 19:00 UTCMay 14, 05:10 UTC10h 10m
2026-05-13 BAW22E BNA → LHR May 13, 01:55 UTCMay 13, 09:40 UTC7h 45m
2026-05-12 BAW223N LHR → BNA May 12, 14:40 UTCMay 12, 23:05 UTC8h 25m
2026-05-11 BAW22E BNA → LHR May 11, 15:05 UTCMay 12, 09:40 UTC18h 36m
2026-05-11 BAW22E BNA → LHR May 11, 14:55 UTCMay 12, 09:40 UTC18h 46m
2026-05-10 BAW19W AUS → LHR May 10, 23:29 UTCMay 11, 08:10 UTC8h 40m
2026-05-10 BAW91C LHR → AUS May 10, 10:40 UTCMay 10, 20:09 UTC9h 30m
2026-05-09 BAW32 HKG → LHR May 9, 23:35 UTCMay 10, 05:20 UTC5h 45m
2026-05-09 BAW32 HKG → LHR May 9, 15:10 UTCMay 9, 15:25 UTC15m
2026-05-09 BAW31 LHR → HKG May 9, 06:30 UTCMay 9, 06:55 UTC25m
2026-05-08 BAW31 LHR → HKG May 8, 18:45 UTCMay 8, 23:10 UTC4h 25m
2026-05-08 BAW4LV LAS → LHR May 8, 05:29 UTCMay 8, 14:55 UTC9h 25m
2026-05-07 BAW2MW LHR → LAS May 7, 16:35 UTCMay 8, 02:04 UTC9h 30m
2026-05-07 BAW21ML DEN → LHR May 7, 00:45 UTCMay 7, 09:10 UTC8h 25m
2026-05-06 BAW219V LHR → DEN May 6, 12:55 UTCMay 6, 21:40 UTC8h 44m
2026-05-06 BAW9HL PHL → LHR May 6, 05:05 UTCMay 6, 05:55 UTC50m
2026-05-05 BAW9HL PHL → LHR May 5, 23:25 UTCMay 6, 05:00 UTC5h 35m
2026-05-05 BAW6RB LHR → PHL May 5, 13:05 UTCMay 5, 20:15 UTC7h 10m
2026-05-04 BAW19W AUS → LHR May 4, 23:15 UTCMay 5, 08:15 UTC9h 0m
2026-05-04 BAW91C LHR → AUS May 4, 10:45 UTCMay 4, 20:20 UTC9h 36m
2026-05-03 BAW78 ACC → LHR May 3, 13:00 UTCMay 4, 05:10 UTC16h 10m
2026-05-02 BAW58D CPT → LHR May 2, 18:00 UTCMay 3, 05:25 UTC11h 24m
2026-05-01 BAW59 LHR → CPT May 1, 08:30 UTCMay 1, 09:00 UTC31m
2026-04-30 BAW59 LHR → CPT Apr 30, 21:45 UTCApr 30, 23:40 UTC1h 55m
2026-04-30 BAW8 HND → LHR Apr 30, 00:30 UTCApr 30, 14:20 UTC13h 50m
2026-04-29 BAW7 LHR → HND Apr 29, 20:50 UTCApr 29, 21:35 UTC45m

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

Mode-S 407AF4 frequently asked

What is Mode-S code 407AF4?
407AF4 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-XWBK.
Where is Mode-S 407AF4 registered?
Mode-S code 407AF4 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 407AF4 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 407AF4, octal 20075364, decimal 4,225,780.
What flights does 407AF4 operate?
Mode-S 407AF4 has broadcast 20 distinct callsigns, including BAW31, BAW32, BAW21ML, BAW9CG, BAW3GB.