Apparatus

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sensors Mode-S transponder

4082CD

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-TUPC · BOEING 737 MAX 8

Hex
4082CD
Octal
20101315
Decimal
4,227,789
Country
GB
Tail
G-TUPC
Type
B38M
Broadcasting now · callsign TOM5JN · 35,000 ft
Flights observed
311
Distinct callsigns
20
Country
GB
Last broadcast
7h ago

Current position

4082CD is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4082CD 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
TOM91D TUI Airways 4 2026-04-22
TOM9VK - 3 2026-07-13
TOM8YT - 3 2026-04-17
TOM8JV - 3 2026-07-04
TOM843 TUI Airways 3 2026-06-29
TOM841 TUI Airways 3 2026-04-23
TOM7HT - 3 2026-07-07
TOM73A - 3 2026-07-07
TOM6EV TUI Airways 3 2026-06-29
TOM570 - 3 2026-04-17
TOM4YH TUI Airways 3 2026-07-13
TOM4XY - 3 2026-04-22
TOM4TA TUI Airways 3 2026-07-06
TOM4KL - 3 2026-07-12
TOM3XN TUI Airways 3 2026-07-12
TOM3VL TUI Airways 3 2026-07-12
TOM3LT TUI Airways 3 2026-06-29
TOM3KX TUI Airways 3 2026-07-12
TOM2WG TUI Airways 3 2026-07-13
TOM26H TUI Airways 3 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 TOM26H BOH → ACE Jul 17, 21:25 UTCJul 17, 23:55 UTC2h 30m
2026-07-17 TOM1LX BRS → AGP Jul 17, 17:05 UTCJul 17, 19:40 UTC2h 35m
2026-07-17 TOM6VX - Jul 17, 12:10 UTCJul 17, 15:49 UTC3h 40m
2026-07-17 TOM1GL BRS → KGS Jul 17, 07:20 UTCJul 17, 10:35 UTC3h 15m
2026-07-16 TOM5YD - Jul 16, 22:05 UTCJul 17, 01:25 UTC3h 20m
2026-07-16 TOM4HE NCL → BOJ Jul 16, 17:20 UTCJul 16, 20:29 UTC3h 10m
2026-07-16 TOM355 - Jul 16, 10:45 UTCJul 16, 14:50 UTC4h 5m
2026-07-16 TOM1AH - Jul 16, 05:20 UTCJul 16, 08:55 UTC3h 35m
2026-07-15 TOM1YW - Jul 15, 13:25 UTCJul 15, 18:10 UTC4h 45m
2026-07-15 TOM7KV NCL → LCA Jul 15, 07:25 UTCJul 15, 11:40 UTC4h 15m
2026-07-14 TOM8FL - Jul 14, 22:10 UTCJul 15, 02:10 UTC3h 59m
2026-07-14 TOM89H FUE → MAN Jul 14, 17:10 UTCJul 14, 20:40 UTC3h 30m
2026-07-14 TOM6DV RHO → NCL Jul 14, 11:00 UTCJul 14, 15:20 UTC4h 20m
2026-07-14 TOM78A NCL → RHO Jul 14, 05:35 UTCJul 14, 09:15 UTC3h 40m
2026-07-13 TOM9VK - Jul 13, 22:35 UTCJul 14, 02:05 UTC3h 30m
2026-07-13 TOM4YH CWL → IBZ Jul 13, 16:15 UTCJul 13, 20:25 UTC4h 10m
2026-07-13 TOM5KT CWL → DLM Jul 13, 11:10 UTCJul 13, 14:25 UTC3h 15m
2026-07-13 TOM2WG MAN → HER Jul 13, 08:05 UTCJul 13, 09:30 UTC1h 25m
2026-07-13 TOM2WG MAN → HER Jul 13, 06:35 UTCJul 13, 08:01 UTC1h 25m
2026-07-12 TOM4KL - Jul 12, 23:00 UTCJul 13, 02:45 UTC3h 45m
2026-07-12 TOM3XN LGW → VRN Jul 12, 18:15 UTCJul 12, 21:45 UTC3h 30m
2026-07-12 TOM3KX BHX → SKG Jul 12, 11:55 UTCJul 12, 16:01 UTC4h 5m
2026-07-12 TOM3VL NCL → KGS Jul 12, 06:55 UTCJul 12, 10:40 UTC3h 45m
2026-07-11 TOM6HG PFO → NCL Jul 11, 20:55 UTCJul 12, 01:30 UTC4h 35m
2026-07-11 TOM6EY LPA → BRS Jul 11, 14:35 UTCJul 11, 18:40 UTC4h 5m
2026-07-11 TOM6DA - Jul 11, 10:25 UTCJul 11, 13:00 UTC2h 35m
2026-07-11 TOM5JN NCL → ALC Jul 11, 06:20 UTCJul 11, 09:00 UTC2h 40m
2026-07-10 TOM26H BOH → ACE Jul 10, 21:20 UTCJul 10, 23:40 UTC2h 20m
2026-07-10 TOM1LX BRS → AGP Jul 10, 17:10 UTCJul 10, 19:40 UTC2h 30m
2026-07-10 TOM6VX - Jul 10, 12:00 UTCJul 10, 15:25 UTC3h 25m
2026-07-10 TOM1GL - Jul 10, 06:40 UTCJul 10, 09:45 UTC3h 5m
2026-07-09 TOM7JN KGS → NCL Jul 9, 19:40 UTCJul 9, 23:50 UTC4h 10m
2026-07-09 TOM49M NCL → KGS Jul 9, 14:20 UTCJul 9, 18:05 UTC3h 45m
2026-07-09 TOM50M - Jul 9, 09:35 UTCJul 9, 12:15 UTC2h 40m
2026-07-09 TOM60H - Jul 9, 05:25 UTCJul 9, 08:10 UTC2h 45m
2026-07-08 TOM2MC - Jul 8, 18:10 UTCJul 9, 01:55 UTC7h 45m
2026-07-08 TOM328 - Jul 8, 13:45 UTCJul 8, 17:35 UTC3h 50m
2026-07-08 TOM4KM - Jul 8, 09:40 UTCJul 8, 12:10 UTC2h 30m
2026-07-08 TOM2GH - Jul 8, 05:15 UTCJul 8, 07:35 UTC2h 20m
2026-07-07 TOM7HT - Jul 7, 21:45 UTCJul 8, 01:25 UTC3h 40m
2026-07-07 TOM73A - Jul 7, 16:00 UTCJul 7, 20:05 UTC4h 5m
2026-07-07 TOM5LJ - Jul 7, 10:25 UTCJul 7, 14:00 UTC3h 35m
2026-07-07 TOM7KB - Jul 7, 05:15 UTCJul 7, 08:25 UTC3h 10m
2026-07-06 TOM62D LGW → HER Jul 6, 19:25 UTCJul 7, 00:15 UTC4h 50m
2026-07-06 TOM83A PVK → MAN Jul 6, 13:40 UTCJul 6, 18:00 UTC4h 20m
2026-07-06 TOM4TA NAP → NCL Jul 6, 08:55 UTCJul 6, 11:25 UTC2h 30m
2026-07-06 TOM45H BHX → IBZ Jul 6, 05:25 UTCJul 6, 07:25 UTC2h 0m
2026-07-04 TOM8JV - Jul 4, 19:00 UTCJul 4, 22:45 UTC3h 45m
2026-07-04 TOM1WE ZTH → MAN Jul 4, 13:50 UTCJul 4, 17:40 UTC3h 50m
2026-07-04 TOM92K NCL → NBE Jul 4, 10:20 UTCJul 4, 12:20 UTC2h 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-TUPC page for operator, model, and routing details .

Mode-S 4082CD frequently asked

What is Mode-S code 4082CD?
4082CD is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-TUPC.
Where is Mode-S 4082CD registered?
Mode-S code 4082CD 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 4082CD broadcasting right now?
Yes. Mode-S 4082CD is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4082CD, octal 20101315, decimal 4,227,789.
What flights does 4082CD operate?
Mode-S 4082CD has broadcast 20 distinct callsigns, including TOM91D, TOM9VK, TOM8YT, TOM8JV, TOM843.