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sensors Mode-S transponder

4075FD

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-TTNH · AIRBUS A-320neo

Hex
4075FD
Octal
20072775
Decimal
4,224,509
Country
GB
Tail
G-TTNH
Type
A20N
Broadcasting now · callsign BAW399 · 31,700 ft
Flights observed
421
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Current position

4075FD is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4075FD 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
SHT16E - 5 2026-06-29
SHT7B - 4 2026-06-29
SHT17L - 4 2026-06-29
BAW7WN - 4 2026-06-17
BAW722 - 4 2026-06-17
SHT7R - 3 2026-06-09
SHT6U - 3 2026-06-28
SHT6Q - 3 2026-06-09
SHT15B - 3 2026-07-12
SHT14G - 3 2026-07-12
BAW893 British Airways 3 2026-05-18
BAW892 British Airways 3 2026-05-18
BAW867 British Airways 3 2026-06-18
BAW866H British Airways 3 2026-06-18
BAW803 - 3 2026-06-26
BAW802 - 3 2026-06-26
BAW801 British Airways 3 2026-05-07
BAW800 British Airways 3 2026-05-07
BAW782F British Airways 3 2026-06-09
BAW719 - 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 BAW399 - Jul 15, 04:50 UTCJul 15, 07:15 UTC2h 25m
2026-07-14 BAW398 - Jul 14, 17:45 UTCJul 14, 21:55 UTC4h 10m
2026-07-14 BAW469 - Jul 14, 14:05 UTCJul 14, 16:00 UTC1h 55m
2026-07-14 BAW468 - Jul 14, 10:20 UTCJul 14, 12:15 UTC1h 55m
2026-07-14 BAW591 MXP → LHR Jul 14, 06:40 UTCJul 14, 08:25 UTC1h 45m
2026-07-13 BAW590 - Jul 13, 20:35 UTCJul 13, 22:00 UTC1h 25m
2026-07-13 BAW691 - Jul 13, 14:40 UTCJul 13, 18:30 UTC3h 50m
2026-07-13 BAW690 - Jul 13, 10:05 UTCJul 13, 13:20 UTC3h 15m
2026-07-13 BAW741 ZRH → LHR Jul 13, 05:25 UTCJul 13, 06:40 UTC1h 15m
2026-07-12 BAW740 - Jul 12, 19:45 UTCJul 12, 21:00 UTC1h 15m
2026-07-12 SHT15B - Jul 12, 17:15 UTCJul 12, 18:01 UTC45m
2026-07-12 SHT14G LHR → JER Jul 12, 15:35 UTCJul 12, 16:10 UTC35m
2026-07-12 BAW8ER DUB → LHR Jul 12, 12:01 UTCJul 12, 13:05 UTC1h 5m
2026-07-12 BAW828Y - Jul 12, 10:01 UTCJul 12, 10:55 UTC55m
2026-07-12 BAW779C ARN → LHR Jul 12, 05:50 UTCJul 12, 08:10 UTC2h 20m
2026-07-11 BAW778F LHR → ARN Jul 11, 20:30 UTCJul 11, 22:30 UTC2h 0m
2026-07-11 BAW9GB - Jul 11, 16:45 UTCJul 11, 18:55 UTC2h 10m
2026-07-11 BAW8LX - Jul 11, 13:40 UTCJul 11, 15:30 UTC1h 50m
2026-07-11 BAW421 - Jul 11, 09:20 UTCJul 11, 11:40 UTC2h 20m
2026-07-11 BAW42LX - Jul 11, 05:35 UTCJul 11, 07:55 UTC2h 20m
2026-07-10 BAW997T - Jul 10, 20:00 UTCJul 10, 21:35 UTC1h 35m
2026-07-10 BAW996G - Jul 10, 17:35 UTCJul 10, 18:55 UTC1h 20m
2026-07-10 BAW949P - Jul 10, 12:45 UTCJul 10, 14:55 UTC2h 10m
2026-07-10 BAW948M - Jul 10, 09:10 UTCJul 10, 10:55 UTC1h 45m
2026-07-10 BAW1DL - Jul 10, 05:45 UTCJul 10, 07:35 UTC1h 50m
2026-07-09 BAW94DL - Jul 9, 19:45 UTCJul 9, 21:05 UTC1h 20m
2026-07-09 BAW425 - Jul 9, 15:30 UTCJul 9, 17:45 UTC2h 15m
2026-07-09 BAW424 - Jul 9, 11:55 UTCJul 9, 14:15 UTC2h 20m
2026-07-09 SHT19S ABZ → LHR Jul 9, 08:50 UTCJul 9, 10:05 UTC1h 15m
2026-07-09 SHT18K LHR → ABZ Jul 9, 06:30 UTCJul 9, 07:25 UTC55m
2026-07-08 BAW609 - Jul 8, 20:55 UTCJul 8, 22:30 UTC1h 35m
2026-07-08 BAW608 - Jul 8, 18:20 UTCJul 8, 20:00 UTC1h 40m
2026-07-08 BAW535 - Jul 8, 13:30 UTCJul 8, 15:40 UTC2h 10m
2026-07-08 BAW534 - Jul 8, 07:10 UTCJul 8, 09:15 UTC2h 5m
2026-07-07 BAW465M MAD → LHR Jul 7, 19:25 UTCJul 7, 21:10 UTC1h 45m
2026-07-07 BAW46BL - Jul 7, 16:15 UTCJul 7, 18:15 UTC2h 0m
2026-07-07 BAW433 AMS → LHR Jul 7, 13:20 UTCJul 7, 14:15 UTC55m
2026-07-07 BAW432 - Jul 7, 11:10 UTCJul 7, 12:00 UTC50m
2026-07-07 BAW721 - Jul 7, 05:25 UTCJul 7, 09:05 UTC3h 40m
2026-07-06 BAW720 - Jul 6, 18:00 UTCJul 6, 21:10 UTC3h 10m
2026-07-06 BAW495 - Jul 6, 13:55 UTCJul 6, 15:55 UTC2h 0m
2026-07-06 BAW494 - Jul 6, 10:40 UTCJul 6, 12:30 UTC1h 50m
2026-07-06 BAW509 LIS → LHR Jul 6, 06:50 UTCJul 6, 09:10 UTC2h 20m
2026-07-05 BAW508 - Jul 5, 19:50 UTCJul 5, 21:55 UTC2h 5m
2026-07-05 BAW333 NCE → LHR Jul 5, 16:50 UTCJul 5, 18:35 UTC1h 45m
2026-07-05 BAW332 - Jul 5, 13:40 UTCJul 5, 15:15 UTC1h 35m
2026-07-05 BAW525 FLR → LHR Jul 5, 09:40 UTCJul 5, 12:05 UTC2h 25m
2026-07-05 BAW524 - Jul 5, 05:45 UTCJul 5, 08:10 UTC2h 25m
2026-07-04 BAW719 - Jul 4, 17:15 UTCJul 4, 20:45 UTC3h 30m
2026-07-04 BAW718 - Jul 4, 12:10 UTCJul 4, 15:10 UTC3h 0m

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

Mode-S 4075FD frequently asked

What is Mode-S code 4075FD?
4075FD is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-TTNH.
Where is Mode-S 4075FD registered?
Mode-S code 4075FD 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 4075FD broadcasting right now?
Yes. Mode-S 4075FD is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4075FD, octal 20072775, decimal 4,224,509.
What flights does 4075FD operate?
Mode-S 4075FD has broadcast 20 distinct callsigns, including SHT16E, SHT7B, SHT17L, BAW7WN, BAW722.