Apparatus

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sensors Mode-S transponder

406D7A

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
406D7A
Octal
20066572
Decimal
4,222,330
Country
GB
Tail
G-ZBKD
Type
B789
No current signal · last broadcast Jul 25, 19:55 UTC
Flights observed
218
Distinct callsigns
20
Country
GB
Last broadcast
Jul 25, 19:55 UTC

Last known position

Most recent position reported by Mode-S 406D7A.

Country allocation

The ICAO 24-bit address 406D7A 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
BAW168 - 31 2026-07-13
BAW169 - 21 2026-07-12
BAW16 British Airways 21 2026-07-06
BAW15 British Airways 17 2026-07-05
BAW33 - 16 2026-07-20
BAW34 British Airways 15 2026-07-21
BAW81V - 6 2026-07-02
BAW6 British Airways 6 2026-07-25
BAW5 British Airways 6 2026-07-24
BAW37J British Airways 6 2026-06-07
BAW26E - 6 2026-07-02
BAW243 - 6 2026-07-18
BAW18A British Airways 6 2026-06-08
BAW70Q - 5 2026-06-17
BAW242 British Airways 5 2026-07-19
BAW171 British Airways 5 2026-06-16
BAW251 - 4 2026-07-17
BAW250 - 4 2026-07-18
BAW36 British Airways 3 2026-06-03
BAW49N British Airways 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 BAW6 HND → LHR Jul 25, 05:40 UTCJul 25, 19:55 UTC14h 15m
2026-07-24 BAW5 LHR → NRT Jul 24, 14:35 UTCJul 25, 03:45 UTC13h 10m
2026-07-24 BAW270 LAS → LHR Jul 24, 01:25 UTCJul 24, 10:45 UTC9h 20m
2026-07-23 BAW271 LHR → LAS Jul 23, 13:10 UTCJul 23, 23:15 UTC10h 5m
2026-07-21 BAW34 LHR → KUL Jul 21, 18:10 UTCJul 22, 04:10 UTC10h 0m
2026-07-21 BAW34 LHR → KUL Jul 21, 15:15 UTCJul 21, 15:35 UTC20m
2026-07-20 BAW33 - Jul 20, 20:50 UTCJul 21, 09:15 UTC12h 25m
2026-07-20 BAW198 BOM → LHR Jul 20, 10:00 UTCJul 20, 17:05 UTC7h 5m
2026-07-20 BAW198 BOM → LHR Jul 20, 07:55 UTCJul 20, 08:10 UTC15m
2026-07-20 BAW199 LHR → BOM Jul 20, 04:50 UTCJul 20, 05:15 UTC25m
2026-07-19 BAW199 LHR → BOM Jul 19, 20:30 UTCJul 20, 04:05 UTC7h 35m
2026-07-19 BAW242 MEX → LHR Jul 19, 04:55 UTCJul 19, 15:05 UTC10h 10m
2026-07-18 BAW243 - Jul 18, 15:40 UTCJul 19, 02:25 UTC10h 45m
2026-07-18 BAW250 - Jul 18, 08:10 UTCJul 18, 09:10 UTC1h 0m
2026-07-17 BAW251 - Jul 17, 11:00 UTCJul 17, 11:10 UTC10m
2026-07-16 BAW251 - Jul 16, 21:35 UTCJul 16, 22:49 UTC1h 15m
2026-07-16 BAW6 HND → LHR Jul 16, 04:30 UTCJul 16, 18:50 UTC14h 20m
2026-07-15 BAW5 - Jul 15, 12:35 UTCJul 16, 01:15 UTC12h 40m
2026-07-14 BAW34 - Jul 14, 15:20 UTCJul 15, 04:15 UTC12h 54m
2026-07-13 BAW33 - Jul 13, 21:00 UTCJul 14, 09:10 UTC12h 10m
2026-07-13 BAW168 - Jul 13, 05:05 UTCJul 13, 17:30 UTC12h 25m
2026-07-12 BAW168 - Jul 12, 15:35 UTCJul 13, 13:45 UTC22h 10m
2026-07-12 BAW169 - Jul 12, 12:35 UTCJul 13, 12:30 UTC23h 55m
2026-07-12 BAW169 - Jul 12, 11:35 UTCJul 13, 09:15 UTC21h 40m
2026-07-09 BAW138 - Jul 9, 21:40 UTCJul 10, 06:55 UTC9h 15m
2026-07-09 BAW139 LHR → BOM Jul 9, 09:20 UTCJul 9, 18:05 UTC8h 45m
2026-07-08 BAW6 HND → LHR Jul 8, 04:20 UTCJul 8, 18:20 UTC14h 0m
2026-07-07 BAW5 LHR → NRT Jul 7, 13:05 UTCJul 8, 01:55 UTC12h 50m
2026-07-06 BAW16 SIN → LHR Jul 6, 15:15 UTCJul 7, 04:25 UTC13h 10m
2026-07-06 BAW16 SIN → LHR Jul 6, 12:30 UTCJul 6, 12:40 UTC10m
2026-07-06 BAW16 SIN → LHR Jul 6, 04:55 UTCJul 6, 05:25 UTC30m
2026-07-05 BAW15 SIN → SYD Jul 5, 12:50 UTCJul 5, 20:05 UTC7h 15m
2026-07-04 BAW15 SIN → SYD Jul 4, 21:20 UTCJul 5, 10:20 UTC13h 0m
2026-07-04 BAW168 - Jul 4, 05:35 UTCJul 4, 17:50 UTC12h 15m
2026-07-03 BAW168 - Jul 3, 18:35 UTCJul 4, 17:50 UTC23h 15m
2026-07-03 BAW168 - Jul 3, 15:10 UTCJul 4, 13:55 UTC22h 45m
2026-07-03 BAW169 - Jul 3, 11:35 UTCJul 4, 06:00 UTC18h 25m
2026-07-02 BAW81V - Jul 2, 22:00 UTCJul 3, 06:30 UTC8h 30m
2026-07-02 BAW26E - Jul 2, 08:45 UTCJul 2, 18:50 UTC10h 5m
2026-07-01 BAW168 - Jul 1, 05:15 UTCJul 1, 17:20 UTC12h 5m
2026-06-30 BAW168 - Jun 30, 14:35 UTCJul 1, 13:45 UTC23h 10m
2026-06-30 BAW169 - Jun 30, 11:35 UTCJul 1, 05:35 UTC18h 0m
2026-06-29 BAW16 SIN → LHR Jun 29, 14:54 UTCJun 30, 03:50 UTC12h 56m
2026-06-29 BAW16 SIN → LHR Jun 29, 12:39 UTCJun 29, 12:49 UTC10m
2026-06-29 BAW16 SIN → LHR Jun 29, 05:00 UTCJun 29, 05:34 UTC35m
2026-06-28 BAW15 SIN → SYD Jun 28, 19:04 UTCJun 28, 19:44 UTC40m
2026-06-28 BAW15 SIN → SYD Jun 28, 12:55 UTCJun 28, 13:04 UTC10m
2026-06-27 BAW15 SIN → SYD Jun 27, 22:15 UTCJun 28, 11:00 UTC12h 45m
2026-06-27 BAW168 - Jun 27, 04:39 UTCJun 27, 17:09 UTC12h 30m
2026-06-26 BAW168 - Jun 26, 18:44 UTCJun 27, 17:09 UTC22h 25m

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

Mode-S 406D7A frequently asked

What is Mode-S code 406D7A?
406D7A is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-ZBKD.
Where is Mode-S 406D7A registered?
Mode-S code 406D7A 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 406D7A broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 19:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406D7A, octal 20066572, decimal 4,222,330.
What flights does 406D7A operate?
Mode-S 406D7A has broadcast 20 distinct callsigns, including BAW168, BAW169, BAW16, BAW15, BAW33.