sensors Mode-S transponder

40808C

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
40808C
Octal
20100214
Decimal
4,227,212
Country
GB
Tail
G-VNVR
Type
A35K
Broadcasting now · callsign VIR36VL · 14,975 ft
Flights observed
6
Distinct callsigns
4
Country
GB
Last broadcast
14h ago

Current position

40808C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 40808C 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
VIR135G Virgin Atlantic Airways 3 2026-04-13
VIR74W - 1 2026-04-14
VIR73Q Virgin Atlantic Airways 1 2026-04-12
VIR36VL Virgin Atlantic Airways 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 VIR74W - Apr 14, 07:15 UTCApr 14, 08:15 UTC1h 0m
2026-04-13 VIR135G LHR → MCO Apr 13, 21:10 UTCApr 13, 21:50 UTC40m
2026-04-13 VIR135G LHR → MCO Apr 13, 18:20 UTCApr 13, 18:40 UTC20m
2026-04-13 VIR135G LHR → MCO Apr 13, 13:05 UTCApr 13, 14:25 UTC1h 20m
2026-04-13 VIR36VL MCO → LHR Apr 13, 05:35 UTCApr 13, 06:40 UTC1h 5m
2026-04-12 VIR73Q MAN → MCO Apr 12, 17:15 UTCApr 12, 20:15 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-VNVR page for operator, model, and routing details .

Mode-S 40808C frequently asked

What is Mode-S code 40808C?
40808C is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VNVR.
Where is Mode-S 40808C registered?
Mode-S code 40808C 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 40808C broadcasting right now?
Yes. Mode-S 40808C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40808C, octal 20100214, decimal 4,227,212.
What flights does 40808C operate?
Mode-S 40808C has broadcast 4 distinct callsigns, including VIR135G, VIR74W, VIR73Q, VIR36VL.