Apparatus

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sensors Mode-S transponder

4075B3

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
4075B3
Octal
20072663
Decimal
4,224,435
Country
GB
Tail
G-VLUX
Type
A35K
No current signal · last broadcast 1h ago
Flights observed
212
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4075B3.

Country allocation

The ICAO 24-bit address 4075B3 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
VIR104L - 21 2026-07-13
VIR103M - 21 2026-07-13
VIR359 Virgin Atlantic Airways 18 2026-05-06
VIR8Y - 17 2026-07-10
VIR4C - 14 2026-06-28
VIR7B - 13 2026-07-10
VIR358 Virgin Atlantic Airways 12 2026-04-29
VIR154 - 10 2026-07-13
VIR3N - 9 2026-07-07
VIR20V - 9 2026-07-12
VIR19Z - 9 2026-07-11
VIR153 - 9 2026-07-12
VIR9J - 8 2026-06-27
VIR45W - 6 2026-07-02
VIR46K - 5 2026-07-07
VIR129R Virgin Atlantic Airways 5 2026-04-14
VIR138M - 4 2026-06-22
VIR137Y Virgin Atlantic Airways 4 2026-06-21
VIR130C Virgin Atlantic Airways 4 2026-04-15
VIR10H - 4 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 VIR104L ATL → LHR Jul 13, 22:40 UTCJul 14, 06:15 UTC7h 35m
2026-07-13 VIR103M LHR → ATL Jul 13, 11:25 UTCJul 13, 19:30 UTC8h 5m
2026-07-13 VIR154 JFK → LHR Jul 13, 01:01 UTCJul 13, 07:25 UTC6h 25m
2026-07-12 VIR153 LHR → JFK Jul 12, 15:40 UTCJul 12, 22:20 UTC6h 40m
2026-07-12 VIR20V SFO → LHR Jul 12, 01:30 UTCJul 12, 10:55 UTC9h 25m
2026-07-11 VIR19Z LHR → SFO Jul 11, 12:00 UTCJul 11, 22:35 UTC10h 35m
2026-07-10 VIR8Y LAX → LHR Jul 10, 23:10 UTCJul 11, 09:00 UTC9h 50m
2026-07-10 VIR7B LHR → LAX Jul 10, 09:35 UTCJul 10, 20:05 UTC10h 30m
2026-07-09 VIR104L ATL → LHR Jul 9, 22:50 UTCJul 10, 06:20 UTC7h 30m
2026-07-09 VIR103M LHR → ATL Jul 9, 10:40 UTCJul 9, 18:55 UTC8h 15m
2026-07-08 VIR104L ATL → LHR Jul 8, 22:30 UTCJul 9, 06:20 UTC7h 50m
2026-07-08 VIR103M - Jul 8, 10:45 UTCJul 8, 18:50 UTC8h 5m
2026-07-07 VIR46K JFK → LHR Jul 7, 23:30 UTCJul 8, 05:45 UTC6h 15m
2026-07-07 VIR3N - Jul 7, 08:30 UTCJul 7, 15:20 UTC6h 50m
2026-07-06 VIR20V - Jul 6, 01:50 UTCJul 6, 11:30 UTC9h 40m
2026-07-05 VIR19Z - Jul 5, 12:15 UTCJul 5, 22:50 UTC10h 35m
2026-07-04 VIR8Y LAX → LHR Jul 4, 23:15 UTCJul 5, 09:05 UTC9h 50m
2026-07-04 VIR7B - Jul 4, 09:40 UTCJul 4, 20:20 UTC10h 40m
2026-07-02 VIR10H JFK → LHR Jul 2, 23:40 UTCJul 3, 05:40 UTC6h 0m
2026-07-02 VIR45W - Jul 2, 13:05 UTCJul 2, 20:20 UTC7h 15m
2026-07-02 VIR48WE YYZ → LHR Jul 2, 03:50 UTCJul 2, 10:00 UTC6h 10m
2026-07-01 VIR47GH LHR → YYZ Jul 1, 17:15 UTCJul 2, 00:40 UTC7h 25m
2026-07-01 VIR20V SFO → LHR Jul 1, 01:30 UTCJul 1, 10:40 UTC9h 10m
2026-06-30 VIR19Z - Jun 30, 12:10 UTCJun 30, 22:05 UTC9h 55m
2026-06-29 VIR8Y LAX → LHR Jun 29, 23:14 UTCJun 30, 08:45 UTC9h 30m
2026-06-29 VIR7B - Jun 29, 09:29 UTCJun 29, 19:39 UTC10h 10m
2026-06-28 VIR4C - Jun 28, 22:55 UTCJun 29, 05:04 UTC6h 10m
2026-06-28 VIR3N - Jun 28, 07:54 UTCJun 28, 14:39 UTC6h 45m
2026-06-27 VIR4C JFK → LHR Jun 27, 22:55 UTCJun 28, 05:09 UTC6h 15m
2026-06-27 VIR9J - Jun 27, 10:45 UTCJun 27, 17:29 UTC6h 45m
2026-06-26 VIR104L ATL → LHR Jun 26, 22:34 UTCJun 27, 05:59 UTC7h 25m
2026-06-26 VIR103M - Jun 26, 11:05 UTCJun 26, 19:24 UTC8h 20m
2026-06-25 VIR4C - Jun 25, 23:39 UTCJun 26, 05:39 UTC6h 0m
2026-06-25 VIR45W - Jun 25, 13:05 UTCJun 25, 20:09 UTC7h 5m
2026-06-24 VIR8Y LAX → LHR Jun 24, 22:55 UTCJun 25, 08:34 UTC9h 40m
2026-06-24 VIR7B - Jun 24, 09:24 UTCJun 24, 19:44 UTC10h 20m
2026-06-23 VIR104L ATL → LHR Jun 23, 22:29 UTCJun 24, 05:54 UTC7h 25m
2026-06-23 VIR103M - Jun 23, 10:39 UTCJun 23, 19:10 UTC8h 30m
2026-06-23 VIR58N BOS → LHR Jun 23, 01:54 UTCJun 23, 07:49 UTC5h 55m
2026-06-22 VIR157L LHR → BOS Jun 22, 15:24 UTCJun 22, 21:54 UTC6h 30m
2026-06-22 VIR138M - Jun 22, 04:19 UTCJun 22, 10:25 UTC6h 5m
2026-06-21 VIR137Y LHR → JFK Jun 21, 18:04 UTCJun 22, 00:55 UTC6h 50m
2026-06-21 VIR20V SFO → LHR Jun 21, 01:25 UTCJun 21, 11:00 UTC9h 35m
2026-06-20 VIR19Z - Jun 20, 12:24 UTCJun 20, 20:45 UTC8h 20m
2026-06-20 VIR138M JFK → LHR Jun 20, 04:14 UTCJun 20, 10:04 UTC5h 50m
2026-06-19 VIR137Y LHR → JFK Jun 19, 17:55 UTCJun 20, 00:54 UTC7h 0m
2026-06-19 VIR20V SFO → LHR Jun 19, 01:34 UTCJun 19, 11:24 UTC9h 50m
2026-06-18 VIR19Z - Jun 18, 12:10 UTCJun 18, 22:25 UTC10h 15m
2026-06-18 VIR8Y - Jun 18, 04:20 UTCJun 18, 09:10 UTC4h 50m
2026-06-17 VIR8Y - Jun 17, 23:15 UTCJun 18, 04:10 UTC4h 55m

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

Mode-S 4075B3 frequently asked

What is Mode-S code 4075B3?
4075B3 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VLUX.
Where is Mode-S 4075B3 registered?
Mode-S code 4075B3 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 4075B3 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4075B3, octal 20072663, decimal 4,224,435.
What flights does 4075B3 operate?
Mode-S 4075B3 has broadcast 20 distinct callsigns, including VIR104L, VIR103M, VIR359, VIR8Y, VIR4C.