sensors Mode-S transponder

406539

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZGJ · AIRBUS A-319

Hex
406539
Octal
20062471
Decimal
4,220,217
Country
GB
Tail
G-EZGJ
Type
A319
No current signal · last broadcast 6h ago
Flights observed
535
Distinct callsigns
20
Country
GB
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 406539.

Country allocation

The ICAO 24-bit address 406539 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
EZY87VL - 9 2026-07-07
EZY362F - 9 2026-07-07
EZY595R - 8 2026-07-10
EZY27VV - 8 2026-07-11
EZY178J - 8 2026-07-07
EZY12NL - 8 2026-07-10
EZY825U easyJet 7 2026-05-02
EZY25FJ - 7 2026-07-09
EZY127G - 7 2026-07-09
EZY43DN easyJet 6 2026-06-10
EZY19HN easyJet 6 2026-06-11
EZY15FT easyJet 6 2026-05-30
EZY984Q - 5 2026-07-09
EZY85KM - 5 2026-07-02
EZY83PE easyJet 5 2026-05-30
EZY81FW - 5 2026-07-09
EZY68NC - 5 2026-07-08
EZY596Z - 5 2026-07-07
EZY49TF easyJet 5 2026-05-02
EZY45ET - 5 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EZY63ZD AMS → LGW Jul 14, 20:10 UTCJul 14, 21:00 UTC50m
2026-07-14 EZY42JA LGW → AMS Jul 14, 18:15 UTCJul 14, 19:00 UTC45m
2026-07-14 EZY28KU - Jul 14, 15:05 UTCJul 14, 16:55 UTC1h 50m
2026-07-14 EZY48VN - Jul 14, 11:45 UTCJul 14, 13:25 UTC1h 40m
2026-07-13 EZY28KE - Jul 13, 18:30 UTCJul 13, 20:05 UTC1h 35m
2026-07-13 EZY38XR - Jul 13, 15:50 UTCJul 13, 17:30 UTC1h 40m
2026-07-13 EZY43DX DBV → LGW Jul 13, 09:55 UTCJul 13, 12:40 UTC2h 45m
2026-07-13 EZY64XT LGW → DBV Jul 13, 06:40 UTCJul 13, 08:55 UTC2h 15m
2026-07-12 EZY84BE IBZ → LGW Jul 12, 19:25 UTCJul 12, 21:25 UTC2h 0m
2026-07-12 EZY32ZV LGW → IBZ Jul 12, 16:20 UTCJul 12, 18:30 UTC2h 10m
2026-07-12 EZY59ED - Jul 12, 12:35 UTCJul 12, 14:50 UTC2h 15m
2026-07-12 EZY63TU - Jul 12, 09:30 UTCJul 12, 11:50 UTC2h 20m
2026-07-12 EZY78DG - Jul 12, 07:01 UTCJul 12, 08:20 UTC1h 20m
2026-07-11 EZY268A - Jul 11, 19:10 UTCJul 11, 20:40 UTC1h 30m
2026-07-11 EZY27VV GLA → LGW Jul 11, 17:10 UTCJul 11, 18:15 UTC1h 5m
2026-07-11 EZY19ZA BCN → GLA Jul 11, 13:15 UTCJul 11, 15:45 UTC2h 30m
2026-07-11 EZY36BK GLA → BCN Jul 11, 09:10 UTCJul 11, 11:35 UTC2h 25m
2026-07-11 EZY605D - Jul 11, 07:35 UTCJul 11, 07:55 UTC20m
2026-07-11 EZY473T GLA → BFS Jul 11, 06:15 UTCJul 11, 06:45 UTC30m
2026-07-10 EZY787R - Jul 10, 21:30 UTCJul 10, 22:15 UTC45m
2026-07-10 EZY32FP GLA → BHX Jul 10, 19:55 UTCJul 10, 20:40 UTC45m
2026-07-10 EZY19MY - Jul 10, 16:35 UTCJul 10, 19:10 UTC2h 35m
2026-07-10 EZY3143 GLA → PUY Jul 10, 13:10 UTCJul 10, 15:40 UTC2h 30m
2026-07-10 EZY595R - Jul 10, 11:00 UTCJul 10, 12:00 UTC1h 0m
2026-07-10 EZY12NL GLA → SOU Jul 10, 08:55 UTCJul 10, 09:55 UTC1h 0m
2026-07-10 EZY837B - Jul 10, 07:45 UTCJul 10, 08:10 UTC25m
2026-07-10 EZY825P GLA → BFS Jul 10, 06:35 UTCJul 10, 07:05 UTC30m
2026-07-09 EZY605D - Jul 9, 22:30 UTCJul 9, 22:55 UTC25m
2026-07-09 EZY473T - Jul 9, 21:15 UTCJul 9, 21:40 UTC25m
2026-07-09 EZY984Q JER → GLA Jul 9, 19:25 UTCJul 9, 20:35 UTC1h 10m
2026-07-09 EZY45ET - Jul 9, 17:20 UTCJul 9, 18:30 UTC1h 10m
2026-07-09 EZY46XT - Jul 9, 15:00 UTCJul 9, 16:20 UTC1h 20m
2026-07-09 EZY81FW - Jul 9, 12:25 UTCJul 9, 13:45 UTC1h 20m
2026-07-09 EZY127G - Jul 9, 09:55 UTCJul 9, 10:45 UTC50m
2026-07-09 EZY25FJ - Jul 9, 08:05 UTCJul 9, 09:00 UTC55m
2026-07-08 EZY68NC - Jul 8, 19:35 UTCJul 8, 22:15 UTC2h 40m
2026-07-08 EZY23ZC - Jul 8, 15:35 UTCJul 8, 18:35 UTC3h 0m
2026-07-08 EZY595R - Jul 8, 11:35 UTCJul 8, 12:35 UTC1h 0m
2026-07-08 EZY12NL - Jul 8, 09:40 UTCJul 8, 10:45 UTC1h 5m
2026-07-08 EZY127G - Jul 8, 07:55 UTCJul 8, 08:55 UTC1h 0m
2026-07-08 EZY25FJ - Jul 8, 06:05 UTCJul 8, 07:00 UTC55m
2026-07-07 EZY362F - Jul 7, 21:05 UTCJul 7, 22:00 UTC55m
2026-07-07 EZY87VL - Jul 7, 19:10 UTCJul 7, 20:00 UTC50m
2026-07-07 EZY69YA - Jul 7, 17:00 UTCJul 7, 18:25 UTC1h 25m
2026-07-07 EZY82FZ - Jul 7, 14:15 UTCJul 7, 15:30 UTC1h 15m
2026-07-07 EZY346J - Jul 7, 11:45 UTCJul 7, 12:15 UTC30m
2026-07-07 EZY596Z - Jul 7, 10:40 UTCJul 7, 11:00 UTC20m
2026-07-07 EZY178J LGW → GLA Jul 7, 08:55 UTCJul 7, 10:00 UTC1h 5m
2026-07-07 EZY27VV - Jul 7, 06:15 UTCJul 7, 07:20 UTC1h 5m
2026-07-06 EZY68NC - Jul 6, 19:45 UTCJul 6, 22:45 UTC3h 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-EZGJ page for operator, model, and routing details .

Mode-S 406539 frequently asked

What is Mode-S code 406539?
406539 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZGJ.
Where is Mode-S 406539 registered?
Mode-S code 406539 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 406539 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406539, octal 20062471, decimal 4,220,217.
What flights does 406539 operate?
Mode-S 406539 has broadcast 20 distinct callsigns, including EZY87VL, EZY362F, EZY595R, EZY27VV, EZY178J.