Apparatus

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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 Jul 26, 20:05 UTC
Flights observed
194
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 20:05 UTC

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
BAW16 British Airways 19 2026-07-26
BAW168 British Airways 17 2026-07-18
BAW15 British Airways 16 2026-07-25
BAW271 British Airways 13 2026-06-29
BAW60 - 12 2026-06-26
BAW169 - 12 2026-07-17
BAW243 British Airways 10 2026-07-23
BAW270 - 9 2026-06-30
BAW61 British Airways 8 2026-06-25
BAW242 British Airways 8 2026-07-24
BAW34 - 7 2026-07-16
BAW9EW British Airways 6 2026-07-23
BAW33 - 6 2026-07-15
BAW250 British Airways 5 2026-06-02
BAW6NC British Airways 4 2026-07-22
BAW6 British Airways 3 2026-05-12
BAW5 British Airways 3 2026-05-11
BAW37J British Airways 3 2026-07-07
BAW276 British Airways 3 2026-05-01
BAW251 British Airways 3 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BAW16 SIN → LHR Jul 26, 15:10 UTCJul 26, 20:05 UTC4h 55m
2026-07-26 BAW16 SIN → LHR Jul 26, 13:05 UTCJul 26, 13:15 UTC10m
2026-07-26 BAW16 SIN → LHR Jul 26, 05:10 UTCJul 26, 05:45 UTC35m
2026-07-25 BAW15 SIN → SYD Jul 25, 12:45 UTCJul 25, 19:20 UTC6h 35m
2026-07-24 BAW15 SIN → SYD Jul 24, 21:30 UTCJul 25, 10:40 UTC13h 10m
2026-07-24 BAW242 MEX → LHR Jul 24, 04:35 UTCJul 24, 14:35 UTC10h 0m
2026-07-23 BAW243 LHR → MEX Jul 23, 14:50 UTCJul 24, 01:30 UTC10h 40m
2026-07-23 BAW9EW YUL → LHR Jul 23, 02:20 UTCJul 23, 08:20 UTC6h 0m
2026-07-22 BAW6NC LHR → YUL Jul 22, 17:35 UTCJul 23, 00:05 UTC6h 30m
2026-07-22 BAW36 MAA → LHR Jul 22, 00:40 UTCJul 22, 10:25 UTC9h 45m
2026-07-21 BAW35 - Jul 21, 12:15 UTCJul 21, 19:45 UTC7h 30m
2026-07-20 BAW16 - Jul 20, 15:05 UTCJul 21, 04:15 UTC13h 10m
2026-07-20 BAW16 - Jul 20, 04:50 UTCJul 20, 05:20 UTC30m
2026-07-19 BAW15 - Jul 19, 18:55 UTCJul 19, 19:35 UTC40m
2026-07-18 BAW15 - Jul 18, 21:20 UTCJul 19, 10:10 UTC12h 50m
2026-07-18 BAW168 PVG → LHR Jul 18, 05:00 UTCJul 18, 17:45 UTC12h 45m
2026-07-17 BAW168 PVG → LHR Jul 17, 14:04 UTCJul 18, 13:55 UTC23h 51m
2026-07-17 BAW169 - Jul 17, 11:30 UTCJul 18, 05:25 UTC17h 56m
2026-07-16 BAW34 - Jul 16, 17:45 UTCJul 17, 03:45 UTC10h 0m
2026-07-16 BAW34 - Jul 16, 15:19 UTCJul 16, 15:40 UTC20m
2026-07-15 BAW33 - Jul 15, 21:10 UTCJul 16, 09:50 UTC12h 40m
2026-07-15 BAW168 - Jul 15, 05:15 UTCJul 15, 17:35 UTC12h 20m
2026-07-14 BAW168 - Jul 14, 18:45 UTCJul 15, 17:35 UTC22h 49m
2026-07-14 BAW168 - Jul 14, 14:05 UTCJul 15, 13:50 UTC23h 44m
2026-07-14 BAW169 - Jul 14, 11:45 UTCJul 15, 05:35 UTC17h 49m
2026-07-14 BAW9EW - Jul 14, 03:10 UTCJul 14, 08:35 UTC5h 25m
2026-07-14 BAW9EW - Jul 14, 02:15 UTCJul 14, 03:05 UTC50m
2026-07-13 BAW6NC - Jul 13, 17:50 UTCJul 14, 00:05 UTC6h 15m
2026-07-12 BAW130 - Jul 12, 23:15 UTCJul 13, 08:10 UTC8h 55m
2026-07-12 BAW130 - Jul 12, 22:10 UTCJul 12, 22:35 UTC25m
2026-07-12 BAW131 - Jul 12, 09:25 UTCJul 12, 18:35 UTC9h 10m
2026-07-11 BAW34 - Jul 11, 15:00 UTCJul 12, 04:01 UTC13h 0m
2026-07-10 BAW33 - Jul 10, 21:20 UTCJul 11, 09:25 UTC12h 5m
2026-07-10 BAW242 - Jul 10, 04:25 UTCJul 10, 14:20 UTC9h 55m
2026-07-09 BAW243 - Jul 9, 14:40 UTCJul 10, 01:35 UTC10h 55m
2026-07-09 BAW298 ORD → LHR Jul 9, 01:30 UTCJul 9, 08:35 UTC7h 5m
2026-07-08 BAW299 LHR → ORD Jul 8, 12:55 UTCJul 8, 20:45 UTC7h 50m
2026-07-08 BAW18A JFK → LHR Jul 8, 03:25 UTCJul 8, 09:55 UTC6h 30m
2026-07-07 BAW37J LHR → JFK Jul 7, 17:15 UTCJul 8, 00:00 UTC6h 45m
2026-07-02 BAW220 STL → LHR Jul 2, 03:00 UTCJul 2, 10:15 UTC7h 15m
2026-07-01 BAW221 - Jul 1, 15:55 UTCJul 2, 00:35 UTC8h 40m
2026-07-01 BAW186 AUS → LHR Jul 1, 03:35 UTCJul 1, 12:15 UTC8h 40m
2026-06-30 BAW187 - Jun 30, 15:35 UTCJul 1, 01:10 UTC9h 35m
2026-06-30 BAW270 LAS → LHR Jun 30, 00:30 UTCJun 30, 09:45 UTC9h 16m
2026-06-29 BAW271 LHR → LAS Jun 29, 11:45 UTCJun 29, 21:39 UTC9h 55m
2026-06-28 BAW16 SIN → LHR Jun 28, 14:59 UTCJun 29, 04:00 UTC13h 0m
2026-06-28 BAW16 SIN → LHR Jun 28, 12:35 UTCJun 28, 12:44 UTC10m
2026-06-28 BAW16 SIN → LHR Jun 28, 04:55 UTCJun 28, 05:29 UTC35m
2026-06-27 BAW15 SIN → SYD Jun 27, 12:34 UTCJun 27, 19:29 UTC6h 55m
2026-06-26 BAW15 SIN → SYD Jun 26, 21:35 UTCJun 27, 10:14 UTC12h 40m

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 Jul 26, 20:05 UTC.
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 BAW16, BAW168, BAW15, BAW271, BAW60.