Apparatus

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sensors Mode-S transponder

4079F6

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
4079F6
Octal
20074766
Decimal
4,225,526
Country
GB
Tail
G-TTNO
Type
A20N
Broadcasting now · callsign BAW625 · 750 ft
Flights observed
229
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Current position

4079F6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4079F6 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
SHT9C - 3 2026-05-08
SHT13Z - 3 2026-05-08
BAW82DM British Airways 3 2026-05-30
BAW825 British Airways 3 2026-05-30
BAW754 British Airways 3 2026-05-08
BAW629 British Airways 3 2026-05-09
BAW628 British Airways 3 2026-05-09
BAW387 British Airways 3 2026-05-27
BAW386 British Airways 3 2026-05-27
SHT9Q - 2 2026-05-25
SHT8Q - 2 2026-05-25
SHT8E - 2 2026-05-08
SHT6N - 2 2026-04-21
SHT19T - 2 2026-05-14
SHT18F - 2 2026-05-14
SHT15E - 2 2026-05-23
SHT14P - 2 2026-05-22
SHT12U - 2 2026-05-07
BAW935 British Airways 2 2026-05-21
BAW934 British Airways 2 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BAW625 DUS → LHR May 30, 14:30 UTCMay 30, 15:30 UTC1h 0m
2026-05-30 BAW624 LHR → RHO May 30, 10:35 UTCMay 30, 13:00 UTC2h 25m
2026-05-30 BAW825 PRG → LHR May 30, 07:50 UTCMay 30, 08:50 UTC1h 0m
2026-05-30 BAW82DM LHR → DUB May 30, 05:35 UTCMay 30, 06:20 UTC45m
2026-05-29 BAW333 NCE → LHR May 29, 18:55 UTCMay 29, 20:35 UTC1h 40m
2026-05-29 BAW332 LHR → NCE May 29, 15:50 UTCMay 29, 17:35 UTC1h 45m
2026-05-29 BAW305 CDG → LHR May 29, 13:20 UTCMay 29, 14:20 UTC1h 0m
2026-05-29 BAW3VH LHR → CDG May 29, 11:00 UTCMay 29, 11:50 UTC50m
2026-05-29 BAW825 PRG → LHR May 29, 08:15 UTCMay 29, 09:20 UTC1h 5m
2026-05-29 BAW82DM LHR → DUB May 29, 06:20 UTCMay 29, 07:05 UTC45m
2026-05-28 BAW969H HAM → LHR May 28, 20:55 UTCMay 28, 22:05 UTC1h 10m
2026-05-28 BAW968 HAM → LHR May 28, 18:25 UTCMay 28, 19:35 UTC1h 10m
2026-05-28 SHT19M ABZ → LHR May 28, 15:05 UTCMay 28, 16:15 UTC1h 10m
2026-05-28 SHT18V - May 28, 13:05 UTCMay 28, 14:10 UTC1h 5m
2026-05-28 BAW813C CPH → LHR May 28, 09:30 UTCMay 28, 11:25 UTC1h 55m
2026-05-28 BAW812 LHR → CPH May 28, 06:10 UTCMay 28, 07:35 UTC1h 25m
2026-05-27 BAW317 - May 27, 19:40 UTCMay 27, 20:35 UTC55m
2026-05-27 BAW16UP LHR → CDG May 27, 17:25 UTCMay 27, 18:10 UTC45m
2026-05-27 BAW387 MRS → LHR May 27, 15:00 UTCMay 27, 15:45 UTC45m
2026-05-27 BAW386 LHR → BRU May 27, 13:15 UTCMay 27, 13:50 UTC35m
2026-05-27 BAW42DB DUB → LHR May 27, 10:45 UTCMay 27, 11:45 UTC1h 0m
2026-05-27 BAW826 LHR → DUB May 27, 08:20 UTCMay 27, 09:15 UTC55m
2026-05-26 SHT4G - May 26, 17:44 UTCMay 26, 19:10 UTC1h 25m
2026-05-26 BAW387 MRS → LHR May 26, 13:24 UTCMay 26, 14:09 UTC45m
2026-05-26 BAW386 LHR → BRU May 26, 11:39 UTCMay 26, 12:14 UTC35m
2026-05-26 BAW301 CAI → LHR May 26, 08:54 UTCMay 26, 09:45 UTC50m
2026-05-26 BAW30DG LHR → CDG May 26, 06:44 UTCMay 26, 07:24 UTC40m
2026-05-25 SHT9Q - May 25, 18:20 UTCMay 25, 19:15 UTC55m
2026-05-25 SHT8Q - May 25, 16:10 UTCMay 25, 17:00 UTC50m
2026-05-25 BAW387 MRS → LHR May 25, 13:20 UTCMay 25, 14:15 UTC55m
2026-05-25 BAW386 LHR → BRU May 25, 11:15 UTCMay 25, 11:55 UTC40m
2026-05-25 BAW429 AMS → LHR May 25, 08:40 UTCMay 25, 09:30 UTC50m
2026-05-25 BAW428 LHR → AMS May 25, 06:10 UTCMay 25, 06:55 UTC45m
2026-05-24 BAW80W CPH → LHR May 24, 19:35 UTCMay 24, 20:55 UTC1h 20m
2026-05-24 BAW808 LHR → CPH May 24, 17:15 UTCMay 24, 18:25 UTC1h 10m
2026-05-24 BAW357 NCE → LHR May 24, 13:40 UTCMay 24, 15:00 UTC1h 20m
2026-05-24 BAW356 LHR → NCE May 24, 11:20 UTCMay 24, 12:30 UTC1h 10m
2026-05-24 SHT13C NCL → LHR May 24, 09:00 UTCMay 24, 09:50 UTC50m
2026-05-24 SHT12H - May 24, 06:55 UTCMay 24, 07:35 UTC40m
2026-05-23 BAW995 BER → LHR May 23, 18:00 UTCMay 23, 19:20 UTC1h 20m
2026-05-23 BAW994 LHR → BER May 23, 15:10 UTCMay 23, 16:35 UTC1h 25m
2026-05-23 BAW483Z BCN → LHR May 23, 11:35 UTCMay 23, 13:20 UTC1h 45m
2026-05-23 BAW482P LHR → BCN May 23, 08:30 UTCMay 23, 10:10 UTC1h 40m
2026-05-23 SHT15E - May 23, 06:15 UTCMay 23, 07:00 UTC45m
2026-05-22 SHT14P - May 22, 20:25 UTCMay 22, 21:00 UTC35m
2026-05-22 BAW837 DUB → LHR May 22, 15:05 UTCMay 22, 17:40 UTC2h 35m
2026-05-22 BAW836 LHR → DUB May 22, 11:55 UTCMay 22, 14:10 UTC2h 15m
2026-05-22 BAW721 GVA → LHR May 22, 05:45 UTCMay 22, 09:10 UTC3h 25m
2026-05-21 BAW720 LHR → ZRH May 21, 18:00 UTCMay 21, 21:05 UTC3h 5m
2026-05-21 BAW935 DUS → LHR May 21, 15:10 UTCMay 21, 16:40 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-TTNO page for operator, model, and routing details .

Mode-S 4079F6 frequently asked

What is Mode-S code 4079F6?
4079F6 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-TTNO.
Where is Mode-S 4079F6 registered?
Mode-S code 4079F6 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 4079F6 broadcasting right now?
Yes. Mode-S 4079F6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4079F6, octal 20074766, decimal 4,225,526.
What flights does 4079F6 operate?
Mode-S 4079F6 has broadcast 20 distinct callsigns, including SHT9C, SHT13Z, BAW82DM, BAW825, BAW754.