sensors Mode-S transponder

40649F

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUYK · AIRBUS A-320

Hex
40649F
Octal
20062237
Decimal
4,220,063
Country
GB
Tail
G-EUYK
Type
A320
No current signal · last broadcast 2d ago
Flights observed
414
Distinct callsigns
20
Country
GB
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 40649F.

Country allocation

The ICAO 24-bit address 40649F 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
BAW849 - 7 2026-07-12
BAW491 British Airways 6 2026-05-02
BAW490 British Airways 6 2026-05-02
BAW48G - 6 2026-07-12
BAW872 British Airways 5 2026-04-25
BAW3LK - 5 2026-07-12
BAW371 - 5 2026-07-12
BAW873 British Airways 4 2026-04-25
BAW531 - 4 2026-06-29
BAW530 - 4 2026-06-28
BAW353 British Airways 4 2026-05-21
SHT3H - 3 2026-06-29
SHT2N - 3 2026-06-29
SHT18A - 3 2026-04-13
BAW986G - 3 2026-06-14
BAW88LP - 3 2026-07-08
BAW889 - 3 2026-07-08
BAW826 - 3 2026-06-28
BAW617 British Airways 3 2026-06-02
BAW616 British Airways 3 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 BAW858V - Jul 12, 20:01 UTCJul 12, 21:55 UTC1h 55m
2026-07-12 BAW371 TLS → LHR Jul 12, 16:10 UTCJul 12, 17:40 UTC1h 30m
2026-07-12 BAW3LK LHR → TLS Jul 12, 13:40 UTCJul 12, 15:01 UTC1h 20m
2026-07-12 BAW849 - Jul 12, 08:50 UTCJul 12, 10:55 UTC2h 5m
2026-07-12 BAW48G - Jul 12, 05:35 UTCJul 12, 07:20 UTC1h 45m
2026-07-11 BAW371 TLS → LHR Jul 11, 17:15 UTCJul 11, 18:50 UTC1h 35m
2026-07-11 BAW3LK LHR → TLS Jul 11, 14:50 UTCJul 11, 16:10 UTC1h 20m
2026-07-11 BAW793 GOT → LHR Jul 11, 10:25 UTCJul 11, 12:20 UTC1h 55m
2026-07-11 BAW792F LHR → LJU Jul 11, 07:00 UTCJul 11, 08:45 UTC1h 45m
2026-07-10 BAW593K OLB → LHR Jul 10, 19:45 UTCJul 10, 21:50 UTC2h 5m
2026-07-10 BAW592 LHR → OLB Jul 10, 16:40 UTCJul 10, 18:50 UTC2h 10m
2026-07-10 BAW863Z BUD → LHR Jul 10, 11:40 UTCJul 10, 13:55 UTC2h 15m
2026-07-10 BAW862U LHR → BUD Jul 10, 07:45 UTCJul 10, 09:45 UTC2h 0m
2026-07-09 BAW375 TLS → LHR Jul 9, 20:00 UTCJul 9, 21:20 UTC1h 20m
2026-07-09 BAW374 - Jul 9, 17:45 UTCJul 9, 19:00 UTC1h 15m
2026-07-09 BAW625 - Jul 9, 13:15 UTCJul 9, 15:55 UTC2h 40m
2026-07-09 BAW624 - Jul 9, 09:35 UTCJul 9, 11:40 UTC2h 5m
2026-07-09 BAW785 - Jul 9, 05:55 UTCJul 9, 07:55 UTC2h 0m
2026-07-08 BAW784 - Jul 8, 19:40 UTCJul 8, 21:25 UTC1h 45m
2026-07-08 BAW371 TLS → LHR Jul 8, 15:30 UTCJul 8, 16:55 UTC1h 25m
2026-07-08 BAW3LK - Jul 8, 13:00 UTCJul 8, 14:20 UTC1h 20m
2026-07-08 BAW889 HAJ → LHR Jul 8, 10:00 UTCJul 8, 11:05 UTC1h 5m
2026-07-08 BAW88LP LHR → HAJ Jul 8, 07:35 UTCJul 8, 08:50 UTC1h 15m
2026-07-07 BAW375 - Jul 7, 19:55 UTCJul 7, 21:15 UTC1h 20m
2026-07-07 BAW374 - Jul 7, 17:20 UTCJul 7, 18:35 UTC1h 15m
2026-07-07 BAW493U GIB → LHR Jul 7, 13:10 UTCJul 7, 15:40 UTC2h 30m
2026-07-07 BAW492 - Jul 7, 09:30 UTCJul 7, 11:50 UTC2h 20m
2026-07-07 BAW729 VIE → LHR Jul 7, 05:45 UTCJul 7, 08:00 UTC2h 15m
2026-07-06 BAW78H - Jul 6, 19:05 UTCJul 6, 20:50 UTC1h 45m
2026-07-06 BAW607M - Jul 6, 15:45 UTCJul 6, 17:40 UTC1h 55m
2026-07-06 BAW606 - Jul 6, 12:20 UTCJul 6, 13:55 UTC1h 35m
2026-07-06 SHT9A EDI → LHR Jul 6, 09:25 UTCJul 6, 10:35 UTC1h 10m
2026-07-06 SHT8D - Jul 6, 06:45 UTCJul 6, 07:50 UTC1h 5m
2026-07-05 BAW561L - Jul 5, 19:15 UTCJul 5, 21:25 UTC2h 10m
2026-07-05 BAW560F - Jul 5, 15:50 UTCJul 5, 17:50 UTC2h 0m
2026-07-05 BAW905U FRA → LHR Jul 5, 12:55 UTCJul 5, 14:15 UTC1h 20m
2026-07-05 BAW904N - Jul 5, 10:20 UTCJul 5, 11:25 UTC1h 5m
2026-07-05 BAW487E BCN → LHR Jul 5, 06:00 UTCJul 5, 08:05 UTC2h 5m
2026-07-04 BAW486 - Jul 4, 18:45 UTCJul 4, 20:15 UTC1h 30m
2026-07-04 BAW613 - Jul 4, 15:25 UTCJul 4, 17:15 UTC1h 50m
2026-07-04 BAW612 - Jul 4, 12:00 UTCJul 4, 13:35 UTC1h 35m
2026-07-04 BAW473D BCN → LHR Jul 4, 08:30 UTCJul 4, 10:20 UTC1h 50m
2026-07-04 BAW472M - Jul 4, 05:30 UTCJul 4, 07:00 UTC1h 30m
2026-07-03 BAW603 PSA → LHR Jul 3, 17:55 UTCJul 3, 19:45 UTC1h 50m
2026-07-03 BAW602 - Jul 3, 14:50 UTCJul 3, 16:30 UTC1h 40m
2026-07-03 BAW8ER - Jul 3, 12:10 UTCJul 3, 13:00 UTC50m
2026-07-03 BAW828Y - Jul 3, 09:55 UTCJul 3, 10:55 UTC1h 0m
2026-07-03 BAW487E - Jul 3, 06:00 UTCJul 3, 07:45 UTC1h 45m
2026-07-02 BAW486 - Jul 2, 18:55 UTCJul 2, 20:25 UTC1h 30m
2026-07-02 BAW935 MUC → LHR Jul 2, 15:05 UTCJul 2, 16:35 UTC1h 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-EUYK page for operator, model, and routing details .

Mode-S 40649F frequently asked

What is Mode-S code 40649F?
40649F is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUYK.
Where is Mode-S 40649F registered?
Mode-S code 40649F 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 40649F broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40649F, octal 20062237, decimal 4,220,063.
What flights does 40649F operate?
Mode-S 40649F has broadcast 20 distinct callsigns, including BAW849, BAW491, BAW490, BAW48G, BAW872.