Apparatus

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sensors Mode-S transponder

408034

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-SUNL · AIRBUS A-321neo

Hex
408034
Octal
20100064
Decimal
4,227,124
Country
GB
Tail
G-SUNL
Type
A21N
Broadcasting now · callsign EXS58X · 35,975 ft
Flights observed
403
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:10 UTC

Current position

408034 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 408034 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
EXS21KJ Jet2.com 17 2026-06-02
EXS18FG Jet2.com 17 2026-06-06
EXS59JM Jet2.com 10 2026-06-05
EXS31NH Jet2.com 10 2026-06-04
EXS1TL - 10 2026-06-04
EXS129W Jet2.com 10 2026-06-05
EXS73P Jet2.com 8 2026-05-25
EXS3807 Jet2.com 7 2026-05-29
EXS22LV - 7 2026-05-07
EXS1XT Jet2.com 7 2026-05-25
EXS23R Jet2.com 6 2026-05-07
EXS88DH Jet2.com 5 2026-05-29
EXS72AR - 5 2026-05-13
EXS64PY Jet2.com 5 2026-05-20
EXS5TY - 5 2026-07-06
EXS49CF Jet2.com 5 2026-05-17
EXS2YU - 5 2026-07-06
EXS22M Jet2.com 5 2026-06-05
EXS1VE - 5 2026-07-06
EXS78YJ - 4 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EXS24XV TFS → LPL Jul 26, 18:50 UTCJul 26, 21:05 UTC2h 15m
2026-07-26 EXS68M LPL → TFS Jul 26, 15:25 UTCJul 26, 17:20 UTC1h 55m
2026-07-26 EXS58X DLM → LPL Jul 26, 11:25 UTCJul 26, 13:55 UTC2h 30m
2026-07-26 EXS73D LPL → DLM Jul 26, 07:25 UTCJul 26, 09:35 UTC2h 10m
2026-07-25 EXS52N NCL → ALC Jul 25, 21:05 UTCJul 25, 23:05 UTC2h 0m
2026-07-25 EXS47RT BOH → LPA Jul 25, 16:15 UTCJul 25, 18:00 UTC1h 45m
2026-07-25 EXS58X DLM → LPL Jul 25, 12:20 UTCJul 25, 14:40 UTC2h 20m
2026-07-25 EXS73D LPL → DLM Jul 25, 08:00 UTCJul 25, 10:30 UTC2h 30m
2026-07-24 EXS17A LCA → BRS Jul 24, 20:55 UTCJul 25, 00:35 UTC3h 40m
2026-07-24 EXS14Q AYT → STN Jul 24, 15:50 UTCJul 24, 18:55 UTC3h 5m
2026-07-24 EXS29S GVA → BRS Jul 24, 11:40 UTCJul 24, 13:50 UTC2h 10m
2026-07-24 EXS73J MLA → STN Jul 24, 08:25 UTCJul 24, 10:25 UTC2h 0m
2026-07-23 EXS15Q FUE → BOH Jul 23, 18:10 UTCJul 23, 21:10 UTC3h 0m
2026-07-23 EXS2Q FAO → BRS Jul 23, 14:25 UTCJul 23, 16:55 UTC2h 30m
2026-07-23 EXS67AM SKG → LGW Jul 23, 09:40 UTCJul 23, 12:55 UTC3h 15m
2026-07-23 EXS3175 LGW → SKG Jul 23, 05:25 UTCJul 23, 08:10 UTC2h 45m
2026-07-22 EXS64G RAK → GLA Jul 22, 19:30 UTCJul 22, 22:55 UTC3h 25m
2026-07-22 EXS83RQ RHO → LTN Jul 22, 14:50 UTCJul 22, 17:30 UTC2h 40m
2026-07-22 EXS9WF - Jul 22, 11:35 UTCJul 22, 13:10 UTC1h 35m
2026-07-21 EXS66Q TFS → BOH Jul 21, 20:40 UTCJul 22, 00:40 UTC4h 0m
2026-07-21 EXS4KG BOH → TFS Jul 21, 15:55 UTCJul 21, 19:15 UTC3h 20m
2026-07-21 EXS58X - Jul 21, 12:05 UTCJul 21, 14:25 UTC2h 20m
2026-07-21 EXS73D - Jul 21, 08:10 UTCJul 21, 10:30 UTC2h 20m
2026-07-20 EXS29S GVA → BRS Jul 20, 19:45 UTCJul 20, 21:45 UTC2h 0m
2026-07-20 EXS73J MLA → STN Jul 20, 16:25 UTCJul 20, 18:25 UTC2h 0m
2026-07-20 EXS2L JKL → LGW Jul 20, 11:00 UTCJul 20, 14:50 UTC3h 50m
2026-07-20 EXS87W BOH → ALC Jul 20, 05:55 UTCJul 20, 09:15 UTC3h 20m
2026-07-19 EXS15Q FUE → BOH Jul 19, 18:30 UTCJul 19, 21:25 UTC2h 55m
2026-07-19 EXS2Q FAO → BRS Jul 19, 13:55 UTCJul 19, 16:30 UTC2h 35m
2026-07-19 EXS67AM SKG → LGW Jul 19, 09:20 UTCJul 19, 12:30 UTC3h 10m
2026-07-19 EXS3175 LGW → SKG Jul 19, 05:20 UTCJul 19, 08:00 UTC2h 40m
2026-07-18 EXS34Z TFS → LPL Jul 18, 19:05 UTCJul 18, 22:20 UTC3h 15m
2026-07-18 EXS67BH - Jul 18, 14:40 UTCJul 18, 17:35 UTC2h 55m
2026-07-18 EXS84R PVK → LGW Jul 18, 09:35 UTCJul 18, 12:45 UTC3h 10m
2026-07-18 EXS33K BOH → MAH Jul 18, 05:40 UTCJul 18, 08:20 UTC2h 40m
2026-07-17 EXS17A LCA → BRS Jul 17, 21:34 UTCJul 18, 01:15 UTC3h 40m
2026-07-17 EXS14Q - Jul 17, 16:59 UTCJul 17, 20:10 UTC3h 10m
2026-07-17 EXS29S GVA → BRS Jul 17, 11:45 UTCJul 17, 13:45 UTC2h 0m
2026-07-17 EXS73J MLA → STN Jul 17, 08:15 UTCJul 17, 10:20 UTC2h 5m
2026-07-16 EXS15Q FUE → BOH Jul 16, 21:45 UTCJul 17, 00:55 UTC3h 10m
2026-07-16 EXS2Q FAO → BRS Jul 16, 14:55 UTCJul 16, 17:40 UTC2h 45m
2026-07-16 EXS67AM SKG → LGW Jul 16, 09:40 UTCJul 16, 12:49 UTC3h 10m
2026-07-16 EXS3175 LGW → SKG Jul 16, 05:45 UTCJul 16, 08:25 UTC2h 40m
2026-07-15 EXS84R PVK → LGW Jul 15, 19:30 UTCJul 15, 23:05 UTC3h 35m
2026-07-15 EXS33K LGW → PVK Jul 15, 15:45 UTCJul 15, 18:25 UTC2h 40m
2026-07-15 EXS34Z - Jul 15, 10:05 UTCJul 15, 13:35 UTC3h 30m
2026-07-15 EXS67BH - Jul 15, 05:25 UTCJul 15, 08:05 UTC2h 40m
2026-07-15 EXS3104 - Jul 15, 01:30 UTCJul 15, 01:50 UTC20m
2026-07-14 EXS232A LGW → STN Jul 14, 14:00 UTCJul 14, 23:55 UTC9h 54m
2026-07-14 EXS339E - Jul 14, 10:40 UTCJul 14, 12:40 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-SUNL page for operator, model, and routing details .

Mode-S 408034 frequently asked

What is Mode-S code 408034?
408034 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-SUNL.
Where is Mode-S 408034 registered?
Mode-S code 408034 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 408034 broadcasting right now?
Yes. Mode-S 408034 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 408034, octal 20100064, decimal 4,227,124.
What flights does 408034 operate?
Mode-S 408034 has broadcast 20 distinct callsigns, including EXS21KJ, EXS18FG, EXS59JM, EXS31NH, EXS1TL.