sensors Mode-S transponder

4080A2

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
4080A2
Octal
20100242
Decimal
4,227,234
Country
GB
Tail
G-VELJ
Type
A35K
No current signal · last broadcast 1d ago
Flights observed
9
Distinct callsigns
3
Country
GB
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4080A2.

Country allocation

The ICAO 24-bit address 4080A2 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 3 distinct

Callsign Airline Flights Last seen
VIR74Y Virgin Atlantic Airways 4 2026-04-13
VIR73Q Virgin Atlantic Airways 4 2026-04-13
VIR135G Virgin Atlantic Airways 1 2026-04-12

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 VIR73Q MAN → MCO Apr 13, 20:00 UTCApr 13, 20:40 UTC40m
2026-04-13 VIR73Q MAN → MCO Apr 13, 17:10 UTCApr 13, 20:10 UTC3h 0m
2026-04-13 VIR73Q MAN → MCO Apr 13, 12:20 UTCApr 13, 13:15 UTC55m
2026-04-13 VIR73Q MAN → MCO Apr 13, 12:05 UTCApr 13, 12:15 UTC10m
2026-04-13 VIR74Y MCO → MAN Apr 13, 08:20 UTCApr 13, 08:40 UTC20m
2026-04-13 VIR74Y MCO → MAN Apr 13, 07:55 UTCApr 13, 08:40 UTC45m
2026-04-13 VIR74Y MCO → MAN Apr 13, 07:30 UTCApr 13, 08:15 UTC45m
2026-04-13 VIR74Y MCO → MAN Apr 13, 01:00 UTCApr 13, 01:30 UTC30m
2026-04-12 VIR135G LHR → MCO 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-VELJ page for operator, model, and routing details .

Mode-S 4080A2 frequently asked

What is Mode-S code 4080A2?
4080A2 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VELJ.
Where is Mode-S 4080A2 registered?
Mode-S code 4080A2 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 4080A2 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4080A2, octal 20100242, decimal 4,227,234.
What flights does 4080A2 operate?
Mode-S 4080A2 has broadcast 3 distinct callsigns, including VIR74Y, VIR73Q, VIR135G.