sensors Mode-S transponder

405E24

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-FDZS · BOEING 737-800

Hex
405E24
Octal
20057044
Decimal
4,218,404
Country
GB
Tail
G-FDZS
Type
B738
Broadcasting now · callsign TOM9FY · 37,000 ft
Flights observed
302
Distinct callsigns
20
Country
GB
Last broadcast
22m ago

Current position

405E24 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 405E24 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
TOM8NL - 5 2026-07-10
TOM86B TUI Airways 5 2026-07-10
TOM7TE TUI Airways 5 2026-04-29
TOM4PV - 5 2026-07-10
TOM1DV - 5 2026-07-10
TOM9FY TUI Airways 4 2026-07-14
TOM8AJ TUI Airways 4 2026-04-29
TOM7FL TUI Airways 4 2026-07-06
TOM6KH - 4 2026-07-11
TOM677 - 4 2026-07-06
TOM676 TUI Airways 4 2026-07-06
TOM61N - 4 2026-07-05
TOM5NG TUI Airways 4 2026-04-29
TOM5GK - 4 2026-07-05
TOM4LV - 4 2026-07-14
TOM43J - 4 2026-07-05
TOM38W - 4 2026-07-09
TOM22B TUI Airways 4 2026-07-06
TOM1VH - 4 2026-07-09
TOM1DH - 4 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TOM9FY CWL → CWL Jul 14, 13:50 UTCJul 14, 15:00 UTC1h 10m
2026-07-14 TOM4LV - Jul 14, 09:50 UTCJul 14, 11:40 UTC1h 50m
2026-07-14 TOM7CW - Jul 14, 05:40 UTCJul 14, 07:55 UTC2h 15m
2026-07-13 TOM32A - Jul 13, 19:20 UTCJul 13, 22:40 UTC3h 20m
2026-07-13 TOM82B CFU → BOH Jul 13, 15:00 UTCJul 13, 17:55 UTC2h 55m
2026-07-13 TOM7DM - Jul 13, 10:20 UTCJul 13, 13:30 UTC3h 10m
2026-07-13 TOM7NJ - Jul 13, 06:01 UTCJul 13, 08:25 UTC2h 25m
2026-07-12 TOM29K - Jul 12, 13:50 UTCJul 12, 17:15 UTC3h 25m
2026-07-12 TOM2TJ - Jul 12, 07:25 UTCJul 12, 10:30 UTC3h 5m
2026-07-11 TOM6KH PFO → EXT Jul 11, 18:25 UTCJul 11, 23:00 UTC4h 35m
2026-07-11 TOM16V EXT → PFO Jul 11, 12:30 UTCJul 11, 16:55 UTC4h 25m
2026-07-11 TOM10J IBZ → EXT Jul 11, 08:25 UTCJul 11, 10:25 UTC2h 0m
2026-07-11 TOM1DH EXT → IBZ Jul 11, 05:05 UTCJul 11, 07:05 UTC2h 0m
2026-07-10 TOM8NL - Jul 10, 19:30 UTCJul 10, 22:35 UTC3h 5m
2026-07-10 TOM86B BHX → PMI Jul 10, 14:20 UTCJul 10, 17:50 UTC3h 30m
2026-07-10 TOM4PV - Jul 10, 10:05 UTCJul 10, 12:55 UTC2h 50m
2026-07-10 TOM1DV - Jul 10, 05:15 UTCJul 10, 07:50 UTC2h 35m
2026-07-09 TOM463 - Jul 9, 20:00 UTCJul 10, 00:00 UTC4h 0m
2026-07-09 TOM1KM - Jul 9, 14:55 UTCJul 9, 18:20 UTC3h 25m
2026-07-09 TOM1VH - Jul 9, 10:00 UTCJul 9, 13:30 UTC3h 30m
2026-07-09 TOM38W - Jul 9, 05:25 UTCJul 9, 08:30 UTC3h 5m
2026-07-08 TOM1LK RHO → EXT Jul 8, 17:45 UTCJul 8, 21:55 UTC4h 10m
2026-07-08 TOM6PK EXT → RHO Jul 8, 12:30 UTCJul 8, 16:10 UTC3h 40m
2026-07-08 TOM2XE - Jul 8, 08:45 UTCJul 8, 10:35 UTC1h 50m
2026-07-08 TOM2HW BRS → FUE Jul 8, 05:10 UTCJul 8, 07:05 UTC1h 55m
2026-07-07 TOM2GE - Jul 7, 12:10 UTCJul 7, 15:35 UTC3h 25m
2026-07-07 TOM89E - Jul 7, 06:45 UTCJul 7, 10:25 UTC3h 40m
2026-07-06 TOM677 - Jul 6, 17:50 UTCJul 6, 21:50 UTC4h 0m
2026-07-06 TOM676 EXT → DLM Jul 6, 12:25 UTCJul 6, 16:00 UTC3h 35m
2026-07-06 TOM7FL SKG → LGW Jul 6, 08:45 UTCJul 6, 10:45 UTC2h 0m
2026-07-06 TOM22B LCA → CWL Jul 6, 05:30 UTCJul 6, 07:20 UTC1h 50m
2026-07-05 TOM43J - Jul 5, 18:10 UTCJul 5, 22:15 UTC4h 5m
2026-07-05 TOM5GK - Jul 5, 13:20 UTCJul 5, 16:55 UTC3h 35m
2026-07-05 TOM61N - Jul 5, 10:10 UTCJul 5, 12:05 UTC1h 55m
2026-07-05 TOM4EW - Jul 5, 06:30 UTCJul 5, 08:30 UTC2h 0m
2026-07-04 TOM6KH - Jul 4, 18:15 UTCJul 4, 22:55 UTC4h 40m
2026-07-04 TOM16V - Jul 4, 12:30 UTCJul 4, 16:30 UTC4h 0m
2026-07-04 TOM10J IBZ → EXT Jul 4, 08:25 UTCJul 4, 10:25 UTC2h 0m
2026-07-04 TOM1DH EXT → IBZ Jul 4, 05:00 UTCJul 4, 06:55 UTC1h 55m
2026-07-03 TOM8NL - Jul 3, 20:35 UTCJul 4, 00:10 UTC3h 35m
2026-07-03 TOM86B BHX → PMI Jul 3, 15:40 UTCJul 3, 19:10 UTC3h 30m
2026-07-03 TOM4PV TFS → MAN Jul 3, 11:05 UTCJul 3, 14:05 UTC3h 0m
2026-07-03 TOM1DV EXT → CFU Jul 3, 05:55 UTCJul 3, 08:25 UTC2h 30m
2026-07-02 TOM463 - Jul 2, 20:15 UTCJul 3, 00:25 UTC4h 10m
2026-07-02 TOM1KM - Jul 2, 15:00 UTCJul 2, 18:35 UTC3h 35m
2026-07-02 TOM1VH - Jul 2, 10:15 UTCJul 2, 13:40 UTC3h 25m
2026-07-02 TOM38W - Jul 2, 05:40 UTCJul 2, 08:55 UTC3h 15m
2026-07-01 TOM5JW PFO → EXT Jul 1, 14:35 UTCJul 1, 19:00 UTC4h 25m
2026-07-01 TOM74G EXT → PFO Jul 1, 09:05 UTCJul 1, 13:15 UTC4h 10m
2026-06-30 TOM76G - Jun 30, 19:05 UTCJun 30, 22:55 UTC3h 50m

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

Mode-S 405E24 frequently asked

What is Mode-S code 405E24?
405E24 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-FDZS.
Where is Mode-S 405E24 registered?
Mode-S code 405E24 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 405E24 broadcasting right now?
Yes. Mode-S 405E24 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 405E24, octal 20057044, decimal 4,218,404.
What flights does 405E24 operate?
Mode-S 405E24 has broadcast 20 distinct callsigns, including TOM8NL, TOM86B, TOM7TE, TOM4PV, TOM1DV.