Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

407AC6

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-TUKO · BOEING 737-800

Hex
407AC6
Octal
20075306
Decimal
4,225,734
Country
GB
Tail
G-TUKO
Type
B738
No current signal · last broadcast 25d ago
Flights observed
234
Distinct callsigns
20
Country
GB
Last broadcast
25d ago

Last known position

Most recent position reported by Mode-S 407AC6.

Country allocation

The ICAO 24-bit address 407AC6 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
TOM9AJ - 3 2026-07-16
TOM8EX - 3 2026-07-16
TOM5DX TUI Airways 3 2026-06-16
TOM506 TUI Airways 3 2026-06-23
TOM44L TUI Airways 3 2026-06-16
TOM3XT TUI Airways 3 2026-07-19
TOM1GN TUI Airways 3 2026-06-23
TOM9VL - 2 2026-07-09
TOM9TJ TUI Airways 2 2026-07-26
TOM9NY TUI Airways 2 2026-06-08
TOM9JB TUI Airways 2 2026-06-06
TOM99A - 2 2026-07-11
TOM77X - 2 2026-07-11
TOM71N - 2 2026-07-22
TOM61Y - 2 2026-06-13
TOM5LD TUI Airways 2 2026-06-12
TOM5GD TUI Airways 2 2026-06-06
TOM596 TUI Airways 2 2026-06-06
TOM591 TUI Airways 2 2026-06-22
TOM40Y TUI Airways 2 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TOM5763 RHO → LGW Jul 26, 19:40 UTCJul 26, 21:30 UTC1h 50m
2026-07-26 TOM5762 LGW → RHO Jul 26, 14:55 UTCJul 26, 18:10 UTC3h 15m
2026-07-26 TOM9TJ REU → BRS Jul 26, 09:55 UTCJul 26, 13:10 UTC3h 15m
2026-07-26 TOM39E LGW → ALC Jul 26, 05:45 UTCJul 26, 08:30 UTC2h 46m
2026-07-24 TOM51L NCL → BOJ Jul 24, 09:45 UTCJul 24, 11:45 UTC2h 0m
2026-07-24 TOM44X HRG → BRS Jul 24, 06:05 UTCJul 24, 08:05 UTC2h 0m
2026-07-23 TOM6FB AGP → BHX Jul 23, 23:05 UTCJul 24, 03:40 UTC4h 35m
2026-07-23 TOM1VE NCL → HER Jul 23, 17:55 UTCJul 23, 21:55 UTC4h 0m
2026-07-23 TOM3AE - Jul 23, 12:00 UTCJul 23, 15:40 UTC3h 40m
2026-07-23 TOM5480 - Jul 23, 07:15 UTCJul 23, 10:20 UTC3h 5m
2026-07-22 TOM5365 RHO → LGW Jul 22, 19:05 UTCJul 22, 23:20 UTC4h 15m
2026-07-22 TOM5364 LGW → RHO Jul 22, 14:25 UTCJul 22, 17:50 UTC3h 25m
2026-07-22 TOM71N - Jul 22, 11:25 UTCJul 22, 12:25 UTC1h 0m
2026-07-21 TOM2EB LGW → BOJ Jul 21, 21:50 UTCJul 22, 02:20 UTC4h 30m
2026-07-21 TOM4CE NCL → LCA Jul 21, 15:55 UTCJul 21, 20:15 UTC4h 20m
2026-07-21 TOM7EK BOH → EFL Jul 21, 11:15 UTCJul 21, 14:40 UTC3h 25m
2026-07-21 TOM3AD AYT → BHX Jul 21, 06:30 UTCJul 21, 09:40 UTC3h 10m
2026-07-20 TOM9TY LGW → KAO Jul 20, 23:35 UTCJul 21, 03:40 UTC4h 4m
2026-07-20 TOM4DA EMA → AYT Jul 20, 18:10 UTCJul 20, 21:55 UTC3h 45m
2026-07-20 TOM987P LGW → EMA Jul 20, 12:40 UTCJul 20, 13:15 UTC35m
2026-07-19 TOM1FC TFS → LGW Jul 19, 14:20 UTCJul 19, 18:05 UTC3h 45m
2026-07-19 TOM3XT CWL → DBV Jul 19, 11:45 UTCJul 19, 12:35 UTC50m
2026-07-19 TOM3XT CWL → DBV Jul 19, 08:40 UTCJul 19, 11:25 UTC2h 45m
2026-07-19 TOM969P BHX → BHX Jul 19, 06:10 UTCJul 19, 06:40 UTC30m
2026-07-18 TOM89J BRS → ACE Jul 18, 19:30 UTCJul 18, 23:35 UTC4h 5m
2026-07-18 TOM7HN DBV → MAN Jul 18, 13:55 UTCJul 18, 17:45 UTC3h 50m
2026-07-18 TOM69M - Jul 18, 09:55 UTCJul 18, 12:00 UTC2h 5m
2026-07-18 TOM30J - Jul 18, 06:00 UTCJul 18, 08:05 UTC2h 5m
2026-07-18 TOM966P BHX → CWL Jul 18, 00:29 UTCJul 18, 01:05 UTC35m
2026-07-17 TOM38K LPA → LGW Jul 17, 19:55 UTCJul 17, 23:20 UTC3h 25m
2026-07-17 TOM40Y STN → STN Jul 17, 16:00 UTCJul 17, 17:05 UTC1h 5m
2026-07-17 TOM40Y STN → STN Jul 17, 13:25 UTCJul 17, 15:55 UTC2h 30m
2026-07-17 TOM11G CWL → EFL Jul 17, 09:15 UTCJul 17, 11:30 UTC2h 15m
2026-07-17 TOM50V IBZ → LGW Jul 17, 05:45 UTCJul 17, 08:04 UTC2h 20m
2026-07-16 TOM8EX - Jul 16, 21:35 UTCJul 17, 00:50 UTC3h 15m
2026-07-16 TOM9AJ - Jul 16, 16:05 UTCJul 16, 20:00 UTC3h 55m
2026-07-16 TOM6LJ - Jul 16, 10:35 UTCJul 16, 12:40 UTC2h 5m
2026-07-16 TOM4TH - Jul 16, 07:05 UTCJul 16, 09:05 UTC2h 0m
2026-07-15 TOM7XB - Jul 15, 19:10 UTCJul 15, 23:25 UTC4h 15m
2026-07-15 TOM8VG LGW → KGS Jul 15, 14:05 UTCJul 15, 17:25 UTC3h 20m
2026-07-15 TOM8BK - Jul 15, 08:50 UTCJul 15, 10:50 UTC2h 0m
2026-07-15 TOM50E - Jul 15, 05:25 UTCJul 15, 07:20 UTC1h 55m
2026-07-14 TOM1HL - Jul 14, 10:55 UTCJul 14, 14:45 UTC3h 50m
2026-07-14 TOM2BY LGW → KGS Jul 14, 05:30 UTCJul 14, 08:50 UTC3h 20m
2026-07-13 TOM285 LGW → LGW Jul 13, 14:45 UTCJul 14, 02:00 UTC11h 15m
2026-07-13 TOM491 - Jul 13, 09:45 UTCJul 13, 12:35 UTC2h 50m
2026-07-13 TOM490 - Jul 13, 04:40 UTCJul 13, 07:15 UTC2h 35m
2026-07-12 TOM1FC - Jul 12, 14:25 UTCJul 12, 18:01 UTC3h 35m
2026-07-12 TOM3XT - Jul 12, 08:35 UTCJul 12, 12:20 UTC3h 45m
2026-07-11 TOM5KY - Jul 11, 23:35 UTCJul 12, 03:10 UTC3h 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-TUKO page for operator, model, and routing details .

Mode-S 407AC6 frequently asked

What is Mode-S code 407AC6?
407AC6 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-TUKO.
Where is Mode-S 407AC6 registered?
Mode-S code 407AC6 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 407AC6 broadcasting right now?
No active broadcast right now. Last signal was 25d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407AC6, octal 20075306, decimal 4,225,734.
What flights does 407AC6 operate?
Mode-S 407AC6 has broadcast 20 distinct callsigns, including TOM9AJ, TOM8EX, TOM5DX, TOM506, TOM44L.