sensors Mode-S transponder

406D78

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
406D78
Octal
20066570
Decimal
4,222,328
Country
GB
Tail
G-ZBKB
Type
B789
No current signal · last broadcast 10h ago
Flights observed
94
Distinct callsigns
20
Country
GB
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 406D78.

Country allocation

The ICAO 24-bit address 406D78 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
BAW271 British Airways 11 2026-04-30
BAW60 British Airways 7 2026-04-21
BAW270 British Airways 7 2026-05-01
BAW243 British Airways 7 2026-05-19
BAW61 British Airways 5 2026-04-21
BAW242 British Airways 5 2026-05-20
BAW168 British Airways 5 2026-05-27
BAW16 British Airways 5 2026-05-25
BAW169 British Airways 4 2026-05-26
BAW15 British Airways 4 2026-05-24
BAW9EW - 3 2026-04-13
BAW6 British Airways 3 2026-05-12
BAW5 British Airways 3 2026-05-11
BAW276 British Airways 3 2026-05-01
BAW250 British Airways 3 2026-05-29
BAW138 British Airways 3 2026-05-06
BAW6NC British Airways 2 2026-04-12
BAW37J British Airways 2 2026-05-20
BAW34 British Airways 2 2026-04-20
BAW33 British Airways 2 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW250 SCL → LHR May 29, 19:15 UTCMay 29, 19:25 UTC10m
2026-05-28 BAW251 LHR → SCL May 28, 21:40 UTCMay 28, 22:40 UTC1h 0m
2026-05-27 BAW168 PVG → LHR May 27, 05:14 UTCMay 27, 18:00 UTC12h 45m
2026-05-26 BAW168 PVG → LHR May 26, 18:55 UTCMay 27, 18:00 UTC23h 5m
2026-05-26 BAW168 PVG → LHR May 26, 14:05 UTCMay 27, 14:00 UTC23h 55m
2026-05-26 BAW169 LHR → PVG May 26, 12:05 UTCMay 27, 09:35 UTC21h 31m
2026-05-26 BAW169 LHR → PVG May 26, 11:34 UTCMay 27, 09:35 UTC22h 1m
2026-05-25 BAW16 SIN → LHR May 25, 15:15 UTCMay 26, 04:20 UTC13h 4m
2026-05-25 BAW16 SIN → LHR May 25, 04:50 UTCMay 25, 05:25 UTC35m
2026-05-24 BAW15 SIN → SYD May 24, 19:05 UTCMay 24, 19:40 UTC35m
2026-05-23 BAW15 SIN → SYD May 23, 21:20 UTCMay 24, 10:20 UTC13h 0m
2026-05-22 BAW256 DEL → LHR May 22, 04:55 UTCMay 22, 13:45 UTC8h 50m
2026-05-21 BAW257 LHR → DEL May 21, 18:45 UTCMay 22, 02:35 UTC7h 50m
2026-05-21 BAW18A JFK → LHR May 21, 04:35 UTCMay 21, 10:35 UTC6h 0m
2026-05-20 BAW37J LHR → JFK May 20, 17:45 UTCMay 21, 01:40 UTC7h 55m
2026-05-20 BAW242 MEX → LHR May 20, 04:20 UTCMay 20, 14:20 UTC10h 1m
2026-05-19 BAW243 LHR → MEX May 19, 14:50 UTCMay 20, 01:50 UTC11h 0m
2026-05-19 BAW18A JFK → LHR May 19, 03:15 UTCMay 19, 09:40 UTC6h 25m
2026-05-18 BAW37J LHR → JFK May 18, 17:10 UTCMay 18, 23:50 UTC6h 39m
2026-05-17 BAW250 SCL → LHR May 17, 21:20 UTCMay 18, 08:55 UTC11h 35m
2026-05-17 BAW250 SCL → LHR May 17, 19:25 UTCMay 17, 19:40 UTC15m
2026-05-16 BAW251 LHR → SCL May 16, 21:35 UTCMay 16, 22:35 UTC1h 0m
2026-05-16 BAW168 PVG → LHR May 16, 12:55 UTCMay 16, 17:55 UTC5h 0m
2026-05-15 BAW168 PVG → LHR May 15, 16:55 UTCMay 16, 16:00 UTC23h 6m
2026-05-15 BAW169 LHR → PVG May 15, 14:05 UTCMay 16, 14:01 UTC23h 55m
2026-05-15 BAW169 LHR → PVG May 15, 13:05 UTCMay 15, 17:35 UTC4h 29m
2026-05-12 BAW6 HND → LHR May 12, 04:35 UTCMay 12, 18:30 UTC13h 55m
2026-05-11 BAW5 LHR → NRT May 11, 12:50 UTCMay 11, 17:45 UTC4h 55m
2026-05-10 BAW16 SIN → LHR May 10, 18:05 UTCMay 11, 04:35 UTC10h 30m
2026-05-10 BAW16 SIN → LHR May 10, 15:15 UTCMay 10, 15:29 UTC15m
2026-05-10 BAW16 SIN → LHR May 10, 04:55 UTCMay 10, 05:30 UTC35m
2026-05-09 BAW15 SIN → SYD May 9, 13:30 UTCMay 9, 19:35 UTC6h 5m
2026-05-08 BAW15 LHR → SIN May 8, 21:30 UTCMay 9, 09:35 UTC12h 5m
2026-05-08 BAW6 HND → LHR May 8, 04:25 UTCMay 8, 18:10 UTC13h 45m
2026-05-07 BAW5 LHR → NRT May 7, 12:30 UTCMay 8, 01:35 UTC13h 5m
2026-05-06 BAW138 BOM → LHR May 6, 12:05 UTCMay 7, 06:40 UTC18h 34m
2026-05-06 BAW138 BOM → LHR May 6, 10:05 UTCMay 7, 06:40 UTC20h 34m
2026-05-06 BAW138 BOM → LHR May 6, 09:10 UTCMay 7, 06:40 UTC21h 29m
2026-05-04 BAW6 HND → LHR May 4, 04:20 UTCMay 4, 18:00 UTC13h 40m
2026-05-03 BAW5 LHR → NRT May 3, 12:30 UTCMay 4, 01:50 UTC13h 20m
2026-05-03 BAW98T YYZ → LHR May 3, 02:20 UTCMay 3, 08:55 UTC6h 34m
2026-05-02 BAW99 LHR → YYZ May 2, 16:40 UTCMay 2, 23:35 UTC6h 55m
2026-05-01 BAW276 HYD → LHR May 1, 18:05 UTCMay 2, 12:40 UTC18h 35m
2026-05-01 BAW276 HYD → LHR May 1, 16:05 UTCMay 2, 12:40 UTC20h 35m
2026-05-01 BAW276 HYD → LHR May 1, 15:25 UTCMay 2, 12:40 UTC21h 15m
2026-05-01 BAW270 LAS → LHR May 1, 00:35 UTCMay 1, 10:05 UTC9h 30m
2026-04-30 BAW271 LHR → LAS Apr 30, 11:40 UTCApr 30, 22:00 UTC10h 20m
2026-04-21 BAW60 MLE → LHR Apr 21, 23:25 UTCApr 22, 17:35 UTC18h 10m
2026-04-21 BAW60 MLE → LHR Apr 21, 20:05 UTCApr 22, 17:35 UTC21h 30m
2026-04-21 BAW60 MLE → LHR Apr 21, 18:05 UTCApr 22, 17:35 UTC23h 30m

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

Mode-S 406D78 frequently asked

What is Mode-S code 406D78?
406D78 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-ZBKB.
Where is Mode-S 406D78 registered?
Mode-S code 406D78 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 406D78 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406D78, octal 20066570, decimal 4,222,328.
What flights does 406D78 operate?
Mode-S 406D78 has broadcast 20 distinct callsigns, including BAW271, BAW60, BAW270, BAW243, BAW61.