sensors Mode-S transponder

406C3B

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-VZIG · BOEING 787-9 Dreamliner

Hex
406C3B
Octal
20066073
Decimal
4,222,011
Country
GB
Tail
G-VZIG
Type
B789
No current signal · last broadcast 2h ago
Flights observed
103
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 406C3B.

Country allocation

The ICAO 24-bit address 406C3B 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 VIR209 ICN → LHR May 30, 03:30 UTCMay 30, 03:50 UTC20m
2026-05-29 VIR208 LHR → ICN May 29, 23:40 UTCMay 30, 00:05 UTC25m
2026-05-29 VIR208 LHR → ICN May 29, 12:35 UTCMay 29, 22:55 UTC10h 20m
2026-05-29 VIR12E BOS → LHR May 29, 03:25 UTCMay 29, 09:40 UTC6h 15m
2026-05-28 VIR11B LHR → BOS May 28, 18:30 UTCMay 29, 00:45 UTC6h 15m
2026-05-28 VIR156T LAS → LHR May 28, 05:15 UTCMay 28, 15:00 UTC9h 45m
2026-05-27 VIR155M LHR → LAS May 27, 16:45 UTCMay 28, 02:40 UTC9h 55m
2026-05-27 VIR142 LAX → LHR May 27, 03:45 UTCMay 27, 13:35 UTC9h 50m
2026-05-26 VIR141 LHR → LAX May 26, 14:00 UTCMay 27, 00:30 UTC10h 30m
2026-05-26 VIR12E BOS → LHR May 26, 03:30 UTCMay 26, 09:29 UTC6h 0m
2026-05-25 VIR11B LHR → BOS May 25, 18:30 UTCMay 26, 01:00 UTC6h 30m
2026-05-25 VIR355 BOM → LHR May 25, 06:45 UTCMay 25, 16:15 UTC9h 30m
2026-05-24 VIR354 LHR → BOM May 24, 19:35 UTCMay 25, 04:15 UTC8h 40m
2026-05-24 VIR24M LAX → LHR May 24, 06:40 UTCMay 24, 16:30 UTC9h 50m
2026-05-23 VIR23X LHR → LAX May 23, 17:40 UTCMay 24, 04:10 UTC10h 31m
2026-05-23 VIR301 DEL → LHR May 23, 06:10 UTCMay 23, 15:00 UTC8h 50m
2026-05-22 VIR300 LHR → DEL May 22, 19:30 UTCMay 23, 03:25 UTC7h 55m
2026-05-22 VIR355 BOM → LHR May 22, 07:10 UTCMay 22, 16:20 UTC9h 10m
2026-05-21 VIR354 LHR → BOM May 21, 19:35 UTCMay 22, 04:20 UTC8h 45m
2026-05-21 VIR355 BOM → LHR May 21, 06:55 UTCMay 21, 16:01 UTC9h 5m
2026-05-20 VIR354 LHR → BOM May 20, 19:20 UTCMay 21, 04:15 UTC8h 55m
2026-05-20 VIR209 ICN → LHR May 20, 03:45 UTCMay 20, 17:15 UTC13h 31m
2026-05-20 VIR208 LHR → ICN May 20, 00:10 UTCMay 20, 00:35 UTC25m
2026-05-19 VIR208 LHR → ICN May 19, 12:40 UTCMay 19, 23:25 UTC10h 45m
2026-05-18 VIR450 JNB → LHR May 18, 18:40 UTCMay 19, 05:30 UTC10h 50m
2026-05-17 VIR449 LHR → JNB May 17, 21:35 UTCMay 18, 07:45 UTC10h 10m
2026-05-17 VIR209 ICN → LHR May 17, 09:10 UTCMay 17, 17:10 UTC8h 0m
2026-05-17 VIR209 ICN → LHR May 17, 03:45 UTCMay 17, 04:05 UTC20m
2026-05-17 VIR208 LHR → ICN May 17, 00:15 UTCMay 17, 00:40 UTC25m
2026-05-16 VIR208 LHR → ICN May 16, 12:50 UTCMay 16, 17:45 UTC4h 55m
2026-05-16 VIR22Q IAD → LHR May 16, 03:10 UTCMay 16, 09:35 UTC6h 26m
2026-05-15 VIR21K LHR → IAD May 15, 17:30 UTCMay 16, 00:50 UTC7h 20m
2026-05-14 VIR26Q JFK → LHR May 14, 12:30 UTCMay 14, 19:05 UTC6h 35m
2026-05-13 VIR25B LHR → JFK May 13, 21:10 UTCMay 14, 04:05 UTC6h 55m
2026-05-12 VIR26Q JFK → LHR May 12, 12:30 UTCMay 12, 18:40 UTC6h 10m
2026-05-11 VIR25B LHR → JFK May 11, 20:30 UTCMay 12, 03:40 UTC7h 10m
2026-05-11 VIR26Q JFK → LHR May 11, 12:30 UTCMay 11, 18:35 UTC6h 5m
2026-05-10 VIR25B LHR → JFK May 10, 19:40 UTCMay 11, 02:30 UTC6h 50m
2026-05-10 VIR24M LAX → LHR May 10, 06:30 UTCMay 10, 16:25 UTC9h 55m
2026-05-09 VIR23X LHR → LAX May 9, 17:30 UTCMay 10, 03:50 UTC10h 20m
2026-05-08 VIR20V SFO → LHR May 8, 01:24 UTCMay 8, 11:14 UTC9h 50m
2026-05-07 VIR19Z LHR → SFO May 7, 12:10 UTCMay 7, 22:15 UTC10h 5m
2026-05-05 VIR301 DEL → LHR May 5, 05:55 UTCMay 5, 14:30 UTC8h 35m
2026-05-04 VIR300 LHR → DEL May 4, 19:30 UTCMay 5, 03:20 UTC7h 50m
2026-05-04 VIR156T LAS → LHR May 4, 05:30 UTCMay 4, 14:50 UTC9h 20m
2026-05-03 VIR155M LHR → LAS May 3, 16:34 UTCMay 4, 02:25 UTC9h 50m
2026-05-03 VIR142 LAX → LHR May 3, 03:40 UTCMay 3, 13:25 UTC9h 45m
2026-05-02 VIR141 LHR → LAX May 2, 14:00 UTCMay 3, 00:35 UTC10h 35m
2026-04-30 VIR24M LAX → LHR Apr 30, 06:25 UTCApr 30, 16:05 UTC9h 40m
2026-04-29 VIR23X LHR → LAX Apr 29, 17:35 UTCApr 30, 04:00 UTC10h 24m

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

Mode-S 406C3B frequently asked

What is Mode-S code 406C3B?
406C3B is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-VZIG.
Where is Mode-S 406C3B registered?
Mode-S code 406C3B 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 406C3B broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406C3B, octal 20066073, decimal 4,222,011.
What flights does 406C3B operate?
Mode-S 406C3B has broadcast 20 distinct callsigns, including VIR20V, VIR208, VIR450, VIR449, VIR209.