sensors Mode-S transponder

40666C

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZUS · AIRBUS A-320

Hex
40666C
Octal
20063154
Decimal
4,220,524
Country
GB
Tail
G-EZUS
Type
A320
No current signal · last broadcast 56m ago
Flights observed
521
Distinct callsigns
20
Country
GB
Last broadcast
56m ago

Last known position

Most recent position reported by Mode-S 40666C.

Country allocation

The ICAO 24-bit address 40666C 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
EZY81FW easyJet 7 2026-05-09
EZY46XT easyJet 7 2026-05-09
EZY69QV easyJet 6 2026-06-02
EZY52RE easyJet 6 2026-06-12
EZY957L - 4 2026-06-26
EZY82FZ easyJet 4 2026-05-11
EZY787R easyJet 4 2026-05-11
EZY69YA easyJet 4 2026-05-11
EZY69HD easyJet 4 2026-06-06
EZY68NC easyJet 4 2026-05-12
EZY676W easyJet 4 2026-05-09
EZY63KQ - 4 2026-06-27
EZY546C easyJet 4 2026-05-09
EZY479M easyJet 4 2026-06-07
EZY46RQ - 4 2026-07-13
EZY41HL easyJet 4 2026-06-06
EZY39DN - 4 2026-07-13
EZY32FP easyJet 4 2026-05-11
EZY31DV easyJet 4 2026-04-14
EZY29AU - 4 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 EZY8518 - Jul 15, 01:50 UTCJul 15, 02:20 UTC30m
2026-07-14 EZY97QP LIS → BHX Jul 14, 21:15 UTCJul 15, 00:15 UTC2h 59m
2026-07-14 EZY26YM LGW → LIS Jul 14, 17:30 UTCJul 14, 20:05 UTC2h 35m
2026-07-13 EZY39DN - Jul 13, 11:40 UTCJul 13, 15:50 UTC4h 10m
2026-07-13 EZY46RQ - Jul 13, 06:45 UTCJul 13, 10:00 UTC3h 15m
2026-07-12 EZY96BR MRS → LGW Jul 12, 21:45 UTCJul 12, 23:15 UTC1h 30m
2026-07-12 EZY12YX - Jul 12, 18:50 UTCJul 12, 20:15 UTC1h 25m
2026-07-12 EZY27XH MXP → LGW Jul 12, 15:25 UTCJul 12, 17:10 UTC1h 45m
2026-07-12 EZY64YA LGW → MXP Jul 12, 12:45 UTCJul 12, 14:10 UTC1h 25m
2026-07-11 EZY98KH - Jul 11, 21:00 UTCJul 11, 23:00 UTC2h 0m
2026-07-11 EZY25RN LGW → LJU Jul 11, 17:30 UTCJul 11, 19:30 UTC2h 0m
2026-07-11 EZY83HG RNS → LGW Jul 11, 14:55 UTCJul 11, 15:50 UTC55m
2026-07-11 EZY85KR LGW → RNS Jul 11, 13:20 UTCJul 11, 14:05 UTC45m
2026-07-11 EZY35YA - Jul 11, 08:35 UTCJul 11, 11:10 UTC2h 35m
2026-07-11 EZY96NA - Jul 11, 04:50 UTCJul 11, 07:15 UTC2h 25m
2026-07-10 EZY57QP - Jul 10, 19:00 UTCJul 10, 20:45 UTC1h 45m
2026-07-10 EZY21DY LGW → PSA Jul 10, 16:10 UTCJul 10, 17:50 UTC1h 40m
2026-07-10 EZY8302 MXP → LGW Jul 10, 12:35 UTCJul 10, 14:05 UTC1h 30m
2026-07-10 EZY8303 LGW → MXP Jul 10, 08:55 UTCJul 10, 10:25 UTC1h 30m
2026-07-10 EZY78UH - Jul 10, 06:05 UTCJul 10, 07:20 UTC1h 15m
2026-07-09 EZY345Y - Jul 9, 21:00 UTCJul 9, 21:55 UTC55m
2026-07-09 EZY86VQ - Jul 9, 19:10 UTCJul 9, 20:00 UTC50m
2026-07-09 EZY163N - Jul 9, 17:10 UTCJul 9, 18:00 UTC50m
2026-07-09 EZY68EW - Jul 9, 15:20 UTCJul 9, 16:15 UTC55m
2026-07-09 EZY731D - Jul 9, 13:15 UTCJul 9, 13:55 UTC40m
2026-07-09 EZY81HM - Jul 9, 11:30 UTCJul 9, 12:15 UTC45m
2026-07-09 EZY78JH - Jul 9, 09:20 UTCJul 9, 10:40 UTC1h 20m
2026-07-09 EZY51NU - Jul 9, 06:55 UTCJul 9, 08:10 UTC1h 15m
2026-07-08 EZY924D - Jul 8, 21:20 UTCJul 8, 22:10 UTC50m
2026-07-08 EZY78UP - Jul 8, 19:35 UTCJul 8, 20:25 UTC50m
2026-07-08 EZY163N - Jul 8, 17:50 UTCJul 8, 18:40 UTC50m
2026-07-08 EZY68EW - Jul 8, 15:55 UTCJul 8, 16:55 UTC1h 0m
2026-07-08 EZY87XH - Jul 8, 12:05 UTCJul 8, 14:50 UTC2h 45m
2026-07-08 EZY34YD - Jul 8, 08:30 UTCJul 8, 10:50 UTC2h 20m
2026-07-08 EZY85WE - Jul 8, 06:10 UTCJul 8, 07:00 UTC50m
2026-07-07 EZY48DQ NBE → BFS Jul 7, 20:55 UTCJul 8, 00:20 UTC3h 25m
2026-07-07 EZY3071 BFS → NBE Jul 7, 16:30 UTCJul 7, 19:40 UTC3h 10m
2026-07-07 EZY68MJ KRK → BFS Jul 7, 12:30 UTCJul 7, 15:25 UTC2h 55m
2026-07-07 EZY3053 - Jul 7, 09:25 UTCJul 7, 11:45 UTC2h 20m
2026-07-07 EZY286A - Jul 7, 06:55 UTCJul 7, 07:50 UTC55m
2026-07-07 EZY47UP - Jul 7, 05:00 UTCJul 7, 05:50 UTC50m
2026-07-06 EZY136H - Jul 6, 21:05 UTCJul 6, 21:55 UTC50m
2026-07-06 EZY21BP - Jul 6, 19:35 UTCJul 6, 20:20 UTC45m
2026-07-06 EZY929Z - Jul 6, 18:00 UTCJul 6, 18:35 UTC35m
2026-07-06 EZY18QU - Jul 6, 16:40 UTCJul 6, 17:15 UTC35m
2026-07-06 EZY83YQ - Jul 6, 13:05 UTCJul 6, 15:40 UTC2h 35m
2026-07-06 EZY808X - Jul 6, 09:15 UTCJul 6, 11:35 UTC2h 20m
2026-07-06 EZY408H - Jul 6, 07:30 UTCJul 6, 08:05 UTC35m
2026-07-06 EZY67PB - Jul 6, 06:10 UTCJul 6, 06:45 UTC35m
2026-07-05 EZY84DT - Jul 5, 18:50 UTCJul 5, 23:40 UTC4h 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-EZUS page for operator, model, and routing details .

Mode-S 40666C frequently asked

What is Mode-S code 40666C?
40666C is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZUS.
Where is Mode-S 40666C registered?
Mode-S code 40666C 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 40666C broadcasting right now?
No active broadcast right now. Last signal was 56m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40666C, octal 20063154, decimal 4,220,524.
What flights does 40666C operate?
Mode-S 40666C has broadcast 20 distinct callsigns, including EZY81FW, EZY46XT, EZY69QV, EZY52RE, EZY957L.