sensors Mode-S transponder

407F2B

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
407F2B
Octal
20077453
Decimal
4,226,859
Country
GB
Tail
G-XWBN
Type
A35K
Transponder active on ground
Flights observed
9
Distinct callsigns
4
Country
GB
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 407F2B.

Country allocation

The ICAO 24-bit address 407F2B 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 4 distinct

Callsign Airline Flights Last seen
BAW9HL British Airways 4 2026-04-13
BAW219V British Airways 3 2026-04-13
BAW6RB British Airways 1 2026-04-12
BAW21ML - 1 2026-04-14

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 BAW21ML - Apr 14, 07:40 UTCApr 14, 09:00 UTC1h 20m
2026-04-13 BAW219V LHR → DEN Apr 13, 20:10 UTCApr 13, 22:35 UTC2h 25m
2026-04-13 BAW219V LHR → DEN Apr 13, 17:20 UTCApr 13, 20:10 UTC2h 50m
2026-04-13 BAW219V LHR → DEN Apr 13, 13:10 UTCApr 13, 15:30 UTC2h 20m
2026-04-13 BAW9HL PHL → LHR Apr 13, 04:20 UTCApr 13, 05:20 UTC1h 0m
2026-04-13 BAW9HL PHL → LHR Apr 13, 04:00 UTCApr 13, 05:20 UTC1h 20m
2026-04-13 BAW9HL PHL → LHR Apr 13, 00:20 UTCApr 13, 04:15 UTC3h 55m
2026-04-12 BAW9HL PHL → LHR Apr 12, 23:55 UTCApr 13, 00:50 UTC55m
2026-04-12 BAW6RB LHR → PHL Apr 12, 18:25 UTCApr 12, 20:15 UTC1h 50m

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

Mode-S 407F2B frequently asked

What is Mode-S code 407F2B?
407F2B is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-XWBN.
Where is Mode-S 407F2B registered?
Mode-S code 407F2B 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 407F2B broadcasting right now?
Mode-S 407F2B is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407F2B, octal 20077453, decimal 4,226,859.
What flights does 407F2B operate?
Mode-S 407F2B has broadcast 4 distinct callsigns, including BAW9HL, BAW219V, BAW6RB, BAW21ML.