Apparatus

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sensors Mode-S transponder

406EC9

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-XLEK · AIRBUS A-380-800

Hex
406EC9
Octal
20067311
Decimal
4,222,665
Country
GB
Tail
G-XLEK
Type
A388
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
166
Distinct callsigns
15
Country
GB
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 406EC9.

Country allocation

The ICAO 24-bit address 406EC9 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 15 distinct

Callsign Airline Flights Last seen
BAW4E British Airways 18 2026-07-23
BAW54 British Airways 17 2026-07-24
BAW7D British Airways 16 2026-07-22
BAW55G British Airways 15 2026-07-26
BAW5L - 13 2026-07-17
BAW2X - 13 2026-07-18
BAW57K British Airways 10 2026-07-03
BAW56 British Airways 10 2026-07-04
BAW213 - 10 2026-07-16
BAW6R - 9 2026-06-26
BAW3G British Airways 9 2026-06-26
BAW212 - 9 2026-07-17
BAW193 British Airways 9 2026-07-25
BAW8K British Airways 7 2026-07-26
BAW9609 British Airways 1 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 BAW55G LHR → JNB Jul 26, 19:35 UTCJul 26, 21:30 UTC1h 55m
2026-07-26 BAW8K DFW → LHR Jul 26, 01:05 UTCJul 26, 09:45 UTC8h 41m
2026-07-25 BAW193 LHR → DFW Jul 25, 12:30 UTCJul 25, 21:45 UTC9h 15m
2026-07-24 BAW54 JNB → LHR Jul 24, 19:40 UTCJul 25, 06:10 UTC10h 30m
2026-07-23 BAW55G LHR → JNB Jul 23, 18:20 UTCJul 24, 04:20 UTC10h 0m
2026-07-23 BAW4E LAX → LHR Jul 23, 04:15 UTCJul 23, 13:55 UTC9h 40m
2026-07-22 BAW7D EWR → LHR Jul 22, 14:50 UTCJul 23, 01:25 UTC10h 35m
2026-07-22 BAW8K DFW → LHR Jul 22, 01:00 UTCJul 22, 04:45 UTC3h 45m
2026-07-21 BAW193 LHR → DFW Jul 21, 12:45 UTCJul 21, 22:00 UTC9h 15m
2026-07-20 BAW54 JNB → LHR Jul 20, 19:50 UTCJul 21, 06:15 UTC10h 25m
2026-07-19 BAW55G - Jul 19, 18:25 UTCJul 20, 05:00 UTC10h 35m
2026-07-19 BAW4E LAX → LHR Jul 19, 04:15 UTCJul 19, 14:20 UTC10h 5m
2026-07-18 BAW7D - Jul 18, 14:55 UTCJul 19, 01:20 UTC10h 25m
2026-07-18 BAW2X - Jul 18, 01:00 UTCJul 18, 10:20 UTC9h 21m
2026-07-17 BAW5L LHR → SFO Jul 17, 11:45 UTCJul 17, 22:15 UTC10h 30m
2026-07-17 BAW212 - Jul 17, 00:20 UTCJul 17, 06:20 UTC6h 0m
2026-07-16 BAW213 - Jul 16, 13:54 UTCJul 16, 20:29 UTC6h 35m
2026-07-16 BAW2X SFO → LHR Jul 16, 00:00 UTCJul 16, 09:40 UTC9h 40m
2026-07-15 BAW5L - Jul 15, 10:55 UTCJul 15, 21:20 UTC10h 25m
2026-07-14 BAW54 - Jul 14, 19:35 UTCJul 15, 06:25 UTC10h 49m
2026-07-13 BAW55G - Jul 13, 18:40 UTCJul 14, 04:45 UTC10h 5m
2026-07-13 BAW4E - Jul 13, 04:10 UTCJul 13, 13:55 UTC9h 45m
2026-07-12 BAW7D - Jul 12, 14:35 UTCJul 13, 01:10 UTC10h 35m
2026-07-12 BAW8K - Jul 12, 01:00 UTCJul 12, 09:40 UTC8h 40m
2026-07-11 BAW193 LHR → DFW Jul 11, 12:20 UTCJul 11, 21:30 UTC9h 10m
2026-07-10 BAW54 - Jul 10, 19:35 UTCJul 11, 06:10 UTC10h 35m
2026-07-09 BAW55G - Jul 9, 18:35 UTCJul 10, 04:55 UTC10h 20m
2026-07-09 BAW4E - Jul 9, 04:10 UTCJul 9, 14:00 UTC9h 50m
2026-07-08 BAW7D - Jul 8, 15:00 UTCJul 9, 01:15 UTC10h 15m
2026-07-04 BAW56 JNB → LHR Jul 4, 17:55 UTCJul 5, 04:25 UTC10h 30m
2026-07-03 BAW57K LHR → JNB Jul 3, 20:50 UTCJul 4, 07:15 UTC10h 25m
2026-07-02 BAW54 - Jul 2, 19:40 UTCJul 3, 06:25 UTC10h 45m
2026-07-01 BAW55G LHR → JNB Jul 1, 18:30 UTCJul 2, 04:35 UTC10h 5m
2026-06-30 BAW56 JNB → LHR Jun 30, 17:45 UTCJul 1, 04:05 UTC10h 20m
2026-06-29 BAW57K LHR → JNB Jun 29, 21:24 UTCJun 30, 07:45 UTC10h 21m
2026-06-29 BAW4E - Jun 29, 04:20 UTCJun 29, 14:09 UTC9h 50m
2026-06-28 BAW7D EWR → LHR Jun 28, 14:45 UTCJun 29, 01:00 UTC10h 15m
2026-06-28 BAW2X SFO → LHR Jun 28, 00:04 UTCJun 28, 10:00 UTC9h 55m
2026-06-27 BAW5L LHR → SFO Jun 27, 10:45 UTCJun 27, 20:44 UTC10h 0m
2026-06-26 BAW6R - Jun 26, 21:50 UTCJun 27, 05:39 UTC7h 50m
2026-06-26 BAW3G LHR → BOS Jun 26, 09:35 UTCJun 26, 18:24 UTC8h 50m
2026-06-22 BAW4E - Jun 22, 04:24 UTCJun 22, 14:10 UTC9h 45m
2026-06-21 BAW7D EWR → LHR Jun 21, 14:30 UTCJun 22, 01:10 UTC10h 40m
2026-06-21 BAW8K DFW → LHR Jun 21, 01:19 UTCJun 21, 09:49 UTC8h 30m
2026-06-20 BAW193 LHR → DFW Jun 20, 12:14 UTCJun 20, 21:34 UTC9h 20m
2026-06-19 BAW6R - Jun 19, 21:24 UTCJun 20, 05:19 UTC7h 55m
2026-06-19 BAW3G LHR → BOS Jun 19, 09:09 UTCJun 19, 17:55 UTC8h 45m
2026-06-18 BAW4E - Jun 18, 04:20 UTCJun 18, 14:25 UTC10h 5m
2026-06-17 BAW7D EWR → LHR Jun 17, 15:05 UTCJun 18, 01:25 UTC10h 20m
2026-06-17 BAW2X SFO → LHR Jun 17, 00:30 UTCJun 17, 10:35 UTC10h 5m

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

Mode-S 406EC9 frequently asked

What is Mode-S code 406EC9?
406EC9 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-XLEK.
Where is Mode-S 406EC9 registered?
Mode-S code 406EC9 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 406EC9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406EC9, octal 20067311, decimal 4,222,665.
What flights does 406EC9 operate?
Mode-S 406EC9 has broadcast 15 distinct callsigns, including BAW4E, BAW54, BAW7D, BAW55G, BAW5L.