Apparatus

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sensors Mode-S transponder

406F3B

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-TUIJ · BOEING 787-9 Dreamliner

Hex
406F3B
Octal
20067473
Decimal
4,222,779
Country
GB
Tail
G-TUIJ
Type
B789
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
202
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S 406F3B.

Country allocation

The ICAO 24-bit address 406F3B 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
TOM182 - 7 2026-07-05
TOM049 TUI Airways 7 2026-07-21
TOM824 TUI Airways 5 2026-04-23
TOM637 - 5 2026-06-24
TOM243 TUI Airways 5 2026-06-21
TOM205 - 5 2026-06-24
TOM204 - 5 2026-06-24
TOM183 - 5 2026-07-06
TOM103 - 5 2026-06-30
TOM093 TUI Airways 5 2026-07-16
TOM055 TUI Airways 5 2026-07-19
TOM048 TUI Airways 5 2026-07-21
TOM855 TUI Airways 4 2026-05-10
TOM143 - 4 2026-07-02
TOM139 - 4 2026-07-09
TOM129 - 4 2026-07-03
TOM128 - 4 2026-07-03
TOM052 - 4 2026-07-10
TOM91K TUI Airways 3 2026-06-08
TOM636 TUI Airways 3 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TOM017 - Jul 26, 22:15 UTCJul 26, 22:45 UTC30m
2026-07-26 TOM016 LGW → MLB Jul 26, 09:35 UTCJul 26, 18:25 UTC8h 50m
2026-07-25 TOM19E MAN → FAO Jul 25, 21:35 UTCJul 26, 01:15 UTC3h 40m
2026-07-25 TOM6LB LGW → RHO Jul 25, 16:40 UTCJul 25, 19:55 UTC3h 15m
2026-07-25 TOM57L BOJ → LGW Jul 25, 12:25 UTCJul 25, 14:20 UTC1h 55m
2026-07-25 TOM11B TFS → TFS Jul 25, 07:20 UTCJul 25, 09:20 UTC2h 0m
2026-07-24 TOM39B - Jul 24, 20:35 UTCJul 25, 00:30 UTC3h 55m
2026-07-24 TOM7FH TRN → MAN Jul 24, 14:50 UTCJul 24, 18:35 UTC3h 45m
2026-07-23 TOM075 LIR → LGW Jul 23, 10:50 UTCJul 24, 05:15 UTC18h 25m
2026-07-23 TOM074 LGW → CUN Jul 23, 09:55 UTCJul 24, 05:15 UTC19h 20m
2026-07-22 TOM085 PUJ → LGW Jul 22, 17:05 UTCJul 23, 05:15 UTC12h 10m
2026-07-22 TOM085 PUJ → LGW Jul 22, 10:20 UTCJul 23, 05:15 UTC18h 55m
2026-07-22 TOM085 PUJ → LGW Jul 22, 04:50 UTCJul 23, 04:45 UTC23h 55m
2026-07-21 TOM049 CUN → LGW Jul 21, 21:00 UTCJul 22, 17:15 UTC20h 15m
2026-07-21 TOM048 LGW → CUN Jul 21, 09:05 UTCJul 21, 18:10 UTC9h 5m
2026-07-19 TOM055 PUJ → LGW Jul 19, 10:50 UTCJul 20, 06:35 UTC19h 45m
2026-07-19 TOM055 PUJ → LGW Jul 19, 10:25 UTCJul 20, 06:35 UTC20h 10m
2026-07-19 TOM974P BFS → MAN Jul 19, 07:35 UTCJul 19, 08:15 UTC40m
2026-07-18 TOM67M EMA → PMI Jul 18, 20:55 UTCJul 19, 00:35 UTC3h 40m
2026-07-18 TOM4KV EMA → HER Jul 18, 15:55 UTCJul 18, 19:15 UTC3h 20m
2026-07-18 TOM973P DUB → BFS Jul 18, 13:20 UTCJul 18, 13:50 UTC30m
2026-07-18 TOM3XE RAK → MAN Jul 18, 09:10 UTCJul 18, 11:15 UTC2h 5m
2026-07-18 TOM5PT MAN → PFO Jul 18, 05:30 UTCJul 18, 07:20 UTC1h 50m
2026-07-17 TOM2BM - Jul 17, 20:44 UTCJul 18, 00:00 UTC3h 15m
2026-07-17 TOM7NG LGW → TFS Jul 17, 15:00 UTCJul 17, 18:44 UTC3h 45m
2026-07-16 TOM093 CUN → LGW Jul 16, 21:55 UTCJul 17, 06:50 UTC8h 55m
2026-07-16 TOM092 LGW → CUN Jul 16, 09:55 UTCJul 16, 19:30 UTC9h 35m
2026-07-15 TOM4DL LCA → LGW Jul 15, 14:00 UTCJul 15, 18:25 UTC4h 25m
2026-07-15 TOM4KY LGW → LCA Jul 15, 07:15 UTCJul 15, 11:00 UTC3h 45m
2026-07-13 TOM045 - Jul 13, 12:50 UTCJul 14, 07:30 UTC18h 40m
2026-07-13 TOM044 LGW → LGW Jul 13, 12:10 UTCJul 14, 07:30 UTC19h 20m
2026-07-12 TOM055 - Jul 12, 10:50 UTCJul 13, 06:05 UTC19h 15m
2026-07-12 TOM054 LGW → LGW Jul 12, 09:55 UTCJul 13, 06:05 UTC20h 10m
2026-07-11 TOM057 LGW → LGW Jul 11, 11:00 UTCJul 12, 06:35 UTC19h 35m
2026-07-10 TOM053 - Jul 10, 10:50 UTCJul 11, 06:20 UTC19h 30m
2026-07-10 TOM052 LGW → LGW Jul 10, 10:05 UTCJul 11, 06:20 UTC20h 16m
2026-07-09 TOM093 CUN → LGW Jul 9, 21:30 UTCJul 10, 06:30 UTC9h 0m
2026-07-09 TOM142 MAN → CUN Jul 9, 09:50 UTCJul 9, 19:15 UTC9h 25m
2026-07-09 TOM139 - Jul 9, 07:30 UTCJul 9, 07:35 UTC5m
2026-07-09 TOM139 - Jul 9, 06:00 UTCJul 9, 07:25 UTC1h 25m
2026-07-08 TOM139 MAN → MAN Jul 8, 11:00 UTCJul 9, 07:25 UTC20h 25m
2026-07-08 TOM9377 - Jul 8, 08:15 UTCJul 8, 08:55 UTC40m
2026-07-07 TOM377 CUN → BFS Jul 7, 21:45 UTCJul 8, 06:20 UTC8h 35m
2026-07-07 TOM376 - Jul 7, 10:35 UTCJul 7, 19:45 UTC9h 10m
2026-07-07 TOM761 - Jul 7, 00:55 UTCJul 7, 08:00 UTC7h 5m
2026-07-06 TOM760 - Jul 6, 14:25 UTCJul 6, 22:25 UTC8h 0m
2026-07-06 TOM9760 MAN → BFS Jul 6, 10:45 UTCJul 6, 11:20 UTC35m
2026-07-06 TOM183 CUN → MAN Jul 6, 00:30 UTCJul 6, 08:45 UTC8h 15m
2026-07-05 TOM182 MAN → CUN Jul 5, 13:00 UTCJul 5, 22:05 UTC9h 5m
2026-07-05 TOM915P LGW → MAN Jul 5, 10:25 UTCJul 5, 11:15 UTC50m

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

Mode-S 406F3B frequently asked

What is Mode-S code 406F3B?
406F3B is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-TUIJ.
Where is Mode-S 406F3B registered?
Mode-S code 406F3B 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 406F3B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406F3B, octal 20067473, decimal 4,222,779.
What flights does 406F3B operate?
Mode-S 406F3B has broadcast 20 distinct callsigns, including TOM182, TOM049, TOM824, TOM637, TOM243.