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 8h ago
Flights observed
146
Distinct callsigns
15
Country
GB
Last broadcast
8h ago

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 - 16 2026-07-13
BAW7D - 14 2026-07-12
BAW54 - 14 2026-07-10
BAW55G - 12 2026-07-13
BAW5L British Airways 11 2026-06-27
BAW2X - 11 2026-06-28
BAW57K British Airways 10 2026-07-03
BAW56 British Airways 10 2026-07-04
BAW6R - 9 2026-06-26
BAW3G British Airways 9 2026-06-26
BAW213 British Airways 9 2026-06-09
BAW212 British Airways 8 2026-06-09
BAW193 - 7 2026-07-11
BAW8K - 5 2026-07-12
BAW9609 British Airways 1 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-06-16 BAW5L LHR → SFO Jun 16, 11:10 UTCJun 16, 21:15 UTC10h 6m
2026-06-15 BAW56 JNB → LHR Jun 15, 17:40 UTCJun 16, 04:15 UTC10h 35m
2026-06-14 BAW57K LHR → JNB Jun 14, 20:45 UTCJun 15, 07:00 UTC10h 15m
2026-06-14 BAW8K DFW → LHR Jun 14, 01:35 UTCJun 14, 10:00 UTC8h 25m
2026-06-13 BAW193 LHR → DFW Jun 13, 12:55 UTCJun 13, 22:15 UTC9h 20m
2026-06-12 BAW6R - Jun 12, 21:30 UTCJun 13, 05:35 UTC8h 4m
2026-06-12 BAW3G LHR → BOS Jun 12, 09:30 UTCJun 12, 18:25 UTC8h 55m
2026-06-11 BAW56 JNB → LHR Jun 11, 17:50 UTCJun 12, 04:25 UTC10h 35m
2026-06-10 BAW57K LHR → JNB Jun 10, 21:15 UTCJun 11, 07:40 UTC10h 25m
2026-06-09 BAW212 BOS → LHR Jun 9, 23:55 UTCJun 10, 05:45 UTC5h 50m
2026-06-09 BAW213 LHR → BOS Jun 9, 14:15 UTCJun 9, 20:40 UTC6h 25m
2026-06-08 BAW54 JNB → LHR Jun 8, 19:35 UTCJun 9, 06:20 UTC10h 45m
2026-06-07 BAW55G LHR → JNB Jun 7, 18:25 UTCJun 8, 04:50 UTC10h 25m
2026-06-07 BAW2X SFO → LHR Jun 7, 00:05 UTCJun 7, 09:40 UTC9h 35m
2026-06-06 BAW5L LHR → SFO Jun 6, 10:14 UTCJun 6, 20:39 UTC10h 25m
2026-06-05 BAW6R MIA → LHR Jun 5, 22:00 UTCJun 6, 05:45 UTC7h 45m
2026-06-05 BAW3G LHR → BOS Jun 5, 10:25 UTCJun 5, 19:25 UTC9h 0m
2026-06-04 BAW4E LAX → LHR Jun 4, 04:20 UTCJun 4, 13:50 UTC9h 30m
2026-06-03 BAW7D EWR → LHR Jun 3, 15:35 UTCJun 4, 01:30 UTC9h 55m
2026-06-03 BAW2X SFO → LHR Jun 3, 02:15 UTCJun 3, 11:50 UTC9h 35m

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 8h ago.
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, BAW7D, BAW54, BAW55G, BAW5L.