Apparatus

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sensors Mode-S transponder

40832B

ICAO 24-bit transponder address · allocated to United Kingdom

Hex
40832B
Octal
20101453
Decimal
4,227,883
Country
GB
Broadcasting now · callsign TOM267 · 38,000 ft
Flights observed
260
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Current position

40832B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 40832B 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
TOM4GL - 6 2026-07-17
TOM267 - 6 2026-07-17
TOM970P TUI Airways 5 2026-04-18
TOM82N TUI Airways 5 2026-07-08
TOM7LW TUI Airways 5 2026-07-08
TOM7JH TUI Airways 5 2026-07-08
TOM6KW TUI Airways 5 2026-07-08
TOM68Y - 5 2026-07-10
TOM4YH TUI Airways 5 2026-07-06
TOM266 TUI Airways 5 2026-07-17
TOM9VK - 4 2026-07-06
TOM8FD - 4 2026-07-09
TOM7MN TUI Airways 4 2026-07-04
TOM78G TUI Airways 4 2026-07-04
TOM66A TUI Airways 4 2026-07-09
TOM5KT TUI Airways 4 2026-07-06
TOM2WG TUI Airways 4 2026-07-06
TOM9MG TUI Airways 3 2026-07-05
TOM871 - 3 2026-06-30
TOM7KL - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 TOM267 - Jul 17, 22:05 UTCJul 18, 00:45 UTC2h 40m
2026-07-17 TOM266 NCL → SSH Jul 17, 15:05 UTCJul 17, 19:25 UTC4h 20m
2026-07-17 TOM4GL - Jul 17, 11:04 UTCJul 17, 13:45 UTC2h 40m
2026-07-17 TOM7GB STN → CFU Jul 17, 06:45 UTCJul 17, 08:54 UTC2h 10m
2026-07-16 TOM4487 - Jul 16, 22:19 UTCJul 17, 01:09 UTC2h 50m
2026-07-16 TOM4486 - Jul 16, 18:15 UTCJul 16, 20:35 UTC2h 20m
2026-07-16 TOM3AE - Jul 16, 11:50 UTCJul 16, 15:35 UTC3h 45m
2026-07-16 TOM5480 - Jul 16, 07:00 UTCJul 16, 10:04 UTC3h 5m
2026-07-15 TOM84K - Jul 15, 22:30 UTCJul 16, 02:15 UTC3h 45m
2026-07-15 TOM2NM LGW → KGS Jul 15, 17:35 UTCJul 15, 21:10 UTC3h 35m
2026-07-15 TOM74K IBZ → CWL Jul 15, 11:20 UTCJul 15, 14:55 UTC3h 35m
2026-07-15 TOM6AE - Jul 15, 05:55 UTCJul 15, 09:50 UTC3h 55m
2026-07-14 TOM9WJ AMM → LGW Jul 14, 21:35 UTCJul 15, 01:55 UTC4h 19m
2026-07-14 TOM45D LGW → AMM Jul 14, 16:25 UTCJul 14, 20:25 UTC4h 0m
2026-07-10 TOM266 NCL → SSH Jul 10, 15:00 UTCJul 10, 16:25 UTC1h 25m
2026-07-10 TOM4GL - Jul 10, 10:50 UTCJul 10, 13:20 UTC2h 30m
2026-07-10 TOM68Y - Jul 10, 05:50 UTCJul 10, 08:25 UTC2h 35m
2026-07-09 TOM1KC - Jul 9, 19:45 UTCJul 10, 00:40 UTC4h 55m
2026-07-09 TOM7KL - Jul 9, 14:15 UTCJul 9, 18:25 UTC4h 10m
2026-07-09 TOM8FD DBV → NCL Jul 9, 09:15 UTCJul 9, 12:20 UTC3h 5m
2026-07-09 TOM66A JSI → BHX Jul 9, 05:30 UTCJul 9, 07:55 UTC2h 25m
2026-07-08 TOM7JH MAN → CFU Jul 8, 21:35 UTCJul 9, 01:40 UTC4h 5m
2026-07-08 TOM7LW BRS → BRS Jul 8, 16:45 UTCJul 8, 20:25 UTC3h 40m
2026-07-08 TOM6KW CWL → BHX Jul 8, 11:00 UTCJul 8, 15:25 UTC4h 25m
2026-07-08 TOM82N NCL → RHO Jul 8, 05:25 UTCJul 8, 09:10 UTC3h 45m
2026-07-07 TOM8FL AYT → NCL Jul 7, 22:15 UTCJul 8, 02:20 UTC4h 5m
2026-07-07 TOM89H FUE → MAN Jul 7, 17:15 UTCJul 7, 20:40 UTC3h 25m
2026-07-07 TOM6DV RHO → NCL Jul 7, 11:00 UTCJul 7, 15:15 UTC4h 15m
2026-07-07 TOM78A NCL → RHO Jul 7, 05:40 UTCJul 7, 09:15 UTC3h 35m
2026-07-06 TOM9VK - Jul 6, 21:15 UTCJul 7, 01:20 UTC4h 5m
2026-07-06 TOM4YH CWL → IBZ Jul 6, 15:40 UTCJul 6, 19:55 UTC4h 15m
2026-07-06 TOM5KT CWL → DLM Jul 6, 11:15 UTCJul 6, 14:30 UTC3h 15m
2026-07-06 TOM2WG MAN → HER Jul 6, 06:45 UTCJul 6, 09:20 UTC2h 35m
2026-07-05 TOM55D - Jul 5, 18:15 UTCJul 5, 21:55 UTC3h 40m
2026-07-05 TOM9MG KGS → BRS Jul 5, 13:55 UTCJul 5, 17:00 UTC3h 5m
2026-07-05 TOM7CH NAP → NCL Jul 5, 09:25 UTCJul 5, 12:10 UTC2h 45m
2026-07-05 TOM6CM NCL → AGP Jul 5, 05:10 UTCJul 5, 07:50 UTC2h 40m
2026-07-04 TOM23W NCL → NCL Jul 4, 13:35 UTCJul 5, 02:05 UTC12h 30m
2026-07-04 TOM78G AGP → LGW Jul 4, 09:15 UTCJul 4, 11:25 UTC2h 10m
2026-07-04 TOM7MN HER → DSA Jul 4, 05:30 UTCJul 4, 07:15 UTC1h 45m
2026-07-04 TOM267 - Jul 4, 01:25 UTCJul 4, 03:20 UTC1h 55m
2026-07-03 TOM267 - Jul 3, 21:55 UTCJul 4, 01:20 UTC3h 25m
2026-07-03 TOM266 NCL → SSH Jul 3, 15:15 UTCJul 3, 19:45 UTC4h 30m
2026-07-03 TOM4GL - Jul 3, 10:35 UTCJul 3, 13:25 UTC2h 50m
2026-07-03 TOM68Y NCL → NAP Jul 3, 05:55 UTCJul 3, 08:30 UTC2h 35m
2026-07-02 TOM1KC - Jul 2, 20:05 UTCJul 3, 00:55 UTC4h 50m
2026-07-02 TOM7KL - Jul 2, 14:15 UTCJul 2, 18:35 UTC4h 20m
2026-07-02 TOM8FD DBV → NCL Jul 2, 09:10 UTCJul 2, 12:15 UTC3h 5m
2026-07-02 TOM66A JSI → BHX Jul 2, 05:20 UTCJul 2, 07:50 UTC2h 30m
2026-07-01 TOM7JH MAN → CFU Jul 1, 22:15 UTCJul 2, 02:20 UTC4h 5m

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.

Mode-S 40832B frequently asked

What is Mode-S code 40832B?
40832B is an ICAO 24-bit transponder address. Allocated to United Kingdom.
Where is Mode-S 40832B registered?
Mode-S code 40832B 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 40832B broadcasting right now?
Yes. Mode-S 40832B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40832B, octal 20101453, decimal 4,227,883.
What flights does 40832B operate?
Mode-S 40832B has broadcast 20 distinct callsigns, including TOM4GL, TOM267, TOM970P, TOM82N, TOM7LW.