Apparatus

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sensors Mode-S transponder

407799

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
407799
Octal
20073631
Decimal
4,224,921
Country
GB
Tail
G-XWBC
Type
A35K
Broadcasting now · callsign BAW143 · 37,000 ft
Flights observed
158
Distinct callsigns
20
Country
GB
Last broadcast
6h ago

Current position

407799 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 407799 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
BAW32 - 15 2026-07-03
BAW31 - 11 2026-07-01
BAW8 - 10 2026-07-01
BAW7 British Airways 10 2026-06-30
BAW223N British Airways 10 2026-05-26
BAW22E British Airways 9 2026-05-27
BAW9HL - 8 2026-07-10
BAW246 - 8 2026-06-21
BAW9CG British Airways 7 2026-05-27
BAW3GB British Airways 7 2026-05-28
BAW247 - 7 2026-06-20
BAW78 - 6 2026-07-12
BAW6RB British Airways 5 2026-07-09
BAW59 British Airways 5 2026-06-25
BAW4LV - 4 2026-06-27
BAW2MW British Airways 4 2026-06-26
BAW21ML - 4 2026-06-23
BAW219V - 4 2026-06-22
BAW143 - 4 2026-07-13
BAW142 - 4 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 BAW142 DEL → LHR Jul 13, 20:30 UTCJul 14, 05:10 UTC8h 40m
2026-07-13 BAW143 - Jul 13, 09:45 UTCJul 13, 17:25 UTC7h 40m
2026-07-12 BAW78 LHR → LHR Jul 12, 13:15 UTCJul 13, 05:01 UTC15h 45m
2026-07-10 BAW78 LHR → LHR Jul 10, 13:25 UTCJul 11, 05:45 UTC16h 20m
2026-07-10 BAW9HL - Jul 10, 00:30 UTCJul 10, 06:50 UTC6h 20m
2026-07-10 BAW9HL PHL → PHL Jul 10, 00:20 UTCJul 10, 00:25 UTC5m
2026-07-09 BAW6RB LHR → PHL Jul 9, 13:20 UTCJul 9, 20:35 UTC7h 15m
2026-07-08 BAW9HL - Jul 8, 23:15 UTCJul 9, 05:50 UTC6h 35m
2026-07-08 BAW9HL PHL → PHL Jul 8, 23:05 UTCJul 8, 23:10 UTC5m
2026-07-08 BAW6RB LHR → PHL Jul 8, 13:15 UTCJul 8, 20:15 UTC7h 0m
2026-07-06 BAW9HL - Jul 6, 00:20 UTCJul 6, 06:25 UTC6h 5m
2026-07-05 BAW9HL PHL → PHL Jul 5, 23:45 UTCJul 5, 23:50 UTC5m
2026-07-05 BAW6RB LHR → PHL Jul 5, 13:15 UTCJul 5, 20:40 UTC7h 25m
2026-07-04 BAW19W AUS → LHR Jul 4, 23:25 UTCJul 5, 08:00 UTC8h 35m
2026-07-04 BAW91C - Jul 4, 11:00 UTCJul 4, 20:50 UTC9h 50m
2026-07-03 BAW142 DEL → LHR Jul 3, 20:40 UTCJul 4, 05:40 UTC9h 0m
2026-07-03 BAW143 - Jul 3, 09:45 UTCJul 3, 13:55 UTC4h 10m
2026-07-03 BAW32 - Jul 3, 00:05 UTCJul 3, 05:15 UTC5h 10m
2026-07-02 BAW32 - Jul 2, 15:50 UTCJul 2, 16:05 UTC15m
2026-07-01 BAW31 - Jul 1, 19:05 UTCJul 2, 07:15 UTC12h 10m
2026-07-01 BAW8 HND → LHR Jul 1, 00:30 UTCJul 1, 14:20 UTC13h 50m
2026-06-30 BAW7 LHR → HND Jun 30, 09:00 UTCJun 30, 21:55 UTC12h 55m
2026-06-28 BAW32 - Jun 28, 20:29 UTCJun 29, 05:09 UTC8h 40m
2026-06-28 BAW32 - Jun 28, 15:09 UTCJun 28, 15:24 UTC15m
2026-06-28 BAW31 - Jun 28, 06:40 UTCJun 28, 07:29 UTC50m
2026-06-27 BAW31 - Jun 27, 19:19 UTCJun 28, 02:20 UTC7h 0m
2026-06-27 BAW4LV LAS → LHR Jun 27, 06:09 UTCJun 27, 15:34 UTC9h 25m
2026-06-26 BAW2MW LHR → LAS Jun 26, 17:40 UTCJun 27, 03:34 UTC9h 55m
2026-06-25 BAW58L CPT → LHR Jun 25, 17:09 UTCJun 26, 04:39 UTC11h 30m
2026-06-25 BAW59 LHR → CPT Jun 25, 08:30 UTCJun 25, 08:50 UTC20m
2026-06-24 BAW59 LHR → CPT Jun 24, 22:04 UTCJun 25, 00:05 UTC2h 0m
2026-06-23 BAW78 - Jun 23, 13:00 UTCJun 24, 05:09 UTC16h 10m
2026-06-23 BAW21ML DEN → LHR Jun 23, 01:30 UTCJun 23, 09:54 UTC8h 25m
2026-06-22 BAW219V - Jun 22, 13:14 UTCJun 22, 22:40 UTC9h 25m
2026-06-21 BAW246 - Jun 21, 18:50 UTCJun 22, 05:34 UTC10h 45m
2026-06-20 BAW247 - Jun 20, 21:44 UTCJun 21, 08:44 UTC11h 0m
2026-06-20 BAW8 HND → LHR Jun 20, 00:34 UTCJun 20, 14:44 UTC14h 10m
2026-06-19 BAW7 LHR → HND Jun 19, 08:50 UTCJun 19, 21:30 UTC12h 40m
2026-06-18 BAW81 LHR → ACC Jun 18, 12:55 UTCJun 19, 04:29 UTC15h 34m
2026-06-17 BAW78 LHR → LHR Jun 17, 13:10 UTCJun 18, 05:10 UTC16h 0m
2026-06-17 BAW21ML DEN → LHR Jun 17, 00:55 UTCJun 17, 09:30 UTC8h 35m
2026-06-16 BAW219V - Jun 16, 13:15 UTCJun 16, 21:50 UTC8h 36m
2026-06-15 BAW142 DEL → LHR Jun 15, 20:45 UTCJun 16, 05:34 UTC8h 50m
2026-06-15 BAW143 - Jun 15, 09:54 UTCJun 15, 17:25 UTC7h 30m
2026-06-14 BAW5CA YYZ → LHR Jun 14, 23:00 UTCJun 15, 05:25 UTC6h 24m
2026-06-14 BAW9ZY - Jun 14, 13:30 UTCJun 14, 20:25 UTC6h 55m
2026-06-13 BAW78 - Jun 13, 13:05 UTCJun 14, 06:25 UTC17h 20m
2026-06-12 BAW32 HKG → LHR Jun 12, 20:40 UTCJun 13, 05:20 UTC8h 40m
2026-06-12 BAW32 HKG → LHR Jun 12, 15:20 UTCJun 12, 15:35 UTC15m
2026-06-11 BAW31 - Jun 11, 19:00 UTCJun 11, 22:00 UTC3h 0m

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

Mode-S 407799 frequently asked

What is Mode-S code 407799?
407799 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-XWBC.
Where is Mode-S 407799 registered?
Mode-S code 407799 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 407799 broadcasting right now?
Yes. Mode-S 407799 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407799, octal 20073631, decimal 4,224,921.
What flights does 407799 operate?
Mode-S 407799 has broadcast 20 distinct callsigns, including BAW32, BAW31, BAW8, BAW7, BAW223N.