sensors Mode-S transponder

40666A

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZUP · AIRBUS A-320

Hex
40666A
Octal
20063152
Decimal
4,220,522
Country
GB
Tail
G-EZUP
Type
A320
No current signal · last broadcast Jul 26, 21:50 UTC
Flights observed
558
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:50 UTC

Last known position

Most recent position reported by Mode-S 40666A.

Country allocation

The ICAO 24-bit address 40666A 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
EZY87QD easyJet 9 2026-05-02
EZY73BF - 7 2026-05-01
EZY67GT - 7 2026-05-01
EZY37YP easyJet 7 2026-06-04
EZY34GN easyJet 7 2026-04-27
EZY25PX easyJet 7 2026-05-01
EZY18HW easyJet 7 2026-06-04
EZY87XH easyJet 6 2026-06-10
EZY87RK easyJet 6 2026-04-30
EZY789V easyJet 6 2026-06-14
EZY61NZ easyJet 6 2026-04-27
EZY5615 easyJet 6 2026-04-28
EZY54RB - 6 2026-06-14
EZY35HU easyJet 6 2026-04-28
EZY34RN easyJet 6 2026-04-29
EZY97GA easyJet 5 2026-07-26
EZY89VK easyJet 5 2026-06-12
EZY81MJ easyJet 5 2026-07-17
EZY64WG - 5 2026-04-28
EZY52JX easyJet 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EZY97GA GVA → MAN Jul 26, 20:00 UTCJul 26, 21:45 UTC1h 45m
2026-07-26 EZY52JX LGW → FCO Jul 26, 17:05 UTCJul 26, 18:25 UTC1h 20m
2026-07-26 EZY69KE MUC → MAN Jul 26, 14:00 UTCJul 26, 15:55 UTC1h 55m
2026-07-26 EZY95XT MAN → AMS Jul 26, 11:10 UTCJul 26, 12:40 UTC1h 30m
2026-07-26 EZY43HF RNS → MAN Jul 26, 08:25 UTCJul 26, 09:30 UTC1h 5m
2026-07-26 EZY95DH MAN → RNS Jul 26, 06:50 UTCJul 26, 07:40 UTC50m
2026-07-25 EZY68YJ NBE → MAN Jul 25, 21:50 UTCJul 26, 00:45 UTC2h 55m
2026-07-25 EZY73GW MAN → NBE Jul 25, 17:40 UTCJul 25, 20:15 UTC2h 35m
2026-07-25 EZY92VH PSA → MAN Jul 25, 12:55 UTCJul 25, 15:25 UTC2h 30m
2026-07-25 EZY23UZ MAN → PSA Jul 25, 09:40 UTCJul 25, 11:45 UTC2h 5m
2026-07-25 EZY93TN BFS → MAN Jul 25, 08:00 UTCJul 25, 08:40 UTC40m
2026-07-25 EZY612A STN → BFS Jul 25, 06:25 UTCJul 25, 07:05 UTC40m
2026-07-24 EZY36EG BFS → MAN Jul 24, 21:10 UTCJul 24, 21:45 UTC35m
2026-07-24 EZY859F MAN → BFS Jul 24, 19:50 UTCJul 24, 20:25 UTC35m
2026-07-24 EZY2136 MXP → MAN Jul 24, 15:25 UTCJul 24, 18:10 UTC2h 45m
2026-07-24 EZY47PR MAN → BRI Jul 24, 11:10 UTCJul 24, 13:45 UTC2h 35m
2026-07-24 EZY83MB MAN → CDG Jul 24, 08:25 UTCJul 24, 10:05 UTC1h 40m
2026-07-24 EZY53ET MAN → OSL Jul 24, 05:45 UTCJul 24, 07:20 UTC1h 35m
2026-07-23 EZY78LD - Jul 23, 20:20 UTCJul 23, 22:45 UTC2h 25m
2026-07-23 EZY18AP - Jul 23, 16:30 UTCJul 23, 18:35 UTC2h 5m
2026-07-23 EZY59XP AMS → MAN Jul 23, 13:30 UTCJul 23, 14:30 UTC1h 0m
2026-07-23 EZY46QG MAN → AMS Jul 23, 11:45 UTCJul 23, 12:35 UTC50m
2026-07-23 EZY24FQ CDG → MAN Jul 23, 09:30 UTCJul 23, 10:30 UTC1h 0m
2026-07-23 EZY74TM MAN → CDG Jul 23, 07:35 UTCJul 23, 08:25 UTC50m
2026-07-22 EZY62DR MAD → MAN Jul 22, 22:10 UTCJul 23, 00:15 UTC2h 5m
2026-07-22 EZY76NK LGW → AYT Jul 22, 19:00 UTCJul 22, 21:05 UTC2h 5m
2026-07-22 EZY84DG IBZ → MAN Jul 22, 15:40 UTCJul 22, 18:00 UTC2h 20m
2026-07-22 EZY28YX MAN → IBZ Jul 22, 12:20 UTCJul 22, 14:45 UTC2h 25m
2026-07-21 EZY83XC - Jul 21, 20:30 UTCJul 21, 23:10 UTC2h 40m
2026-07-21 EZY74NZ - Jul 21, 16:40 UTCJul 21, 18:55 UTC2h 15m
2026-07-21 EZY92QC AMS → MAN Jul 21, 14:20 UTCJul 21, 15:15 UTC55m
2026-07-21 EZY85FV MAN → AMS Jul 21, 12:30 UTCJul 21, 13:20 UTC50m
2026-07-21 EZY21RA RAK → LGW Jul 21, 09:00 UTCJul 21, 11:15 UTC2h 15m
2026-07-21 EZY61HW MAN → VCE Jul 21, 05:45 UTCJul 21, 07:50 UTC2h 5m
2026-07-20 EZY59AD ALC → MAN Jul 20, 22:15 UTCJul 21, 00:40 UTC2h 24m
2026-07-20 EZY96TY GLA → SPU Jul 20, 18:40 UTCJul 20, 21:00 UTC2h 20m
2026-07-20 EZY72XB MAH → MAN Jul 20, 15:15 UTCJul 20, 17:30 UTC2h 15m
2026-07-20 EZY32ZH MAN → MAH Jul 20, 11:45 UTCJul 20, 13:55 UTC2h 10m
2026-07-20 EZY18ZQ BER → MAN Jul 20, 08:55 UTCJul 20, 10:25 UTC1h 30m
2026-07-20 EZY78AL BFS → JER Jul 20, 06:15 UTCJul 20, 07:55 UTC1h 40m
2026-07-19 EZY97GA GVA → MAN Jul 19, 20:00 UTCJul 19, 21:35 UTC1h 35m
2026-07-19 EZY52JX LGW → FCO Jul 19, 17:25 UTCJul 19, 18:55 UTC1h 30m
2026-07-19 EZY69KE MUC → MAN Jul 19, 14:20 UTCJul 19, 16:10 UTC1h 50m
2026-07-19 EZY95XT MAN → AMS Jul 19, 11:20 UTCJul 19, 13:20 UTC2h 0m
2026-07-19 EZY74VH CDG → MAN Jul 19, 08:10 UTCJul 19, 09:10 UTC1h 0m
2026-07-19 EZY52ZB MAN → CDG Jul 19, 05:45 UTCJul 19, 06:40 UTC55m
2026-07-18 EZY78LD - Jul 18, 21:50 UTCJul 19, 00:10 UTC2h 20m
2026-07-18 EZY18AP - Jul 18, 18:30 UTCJul 18, 20:35 UTC2h 5m
2026-07-18 EZY94FA BRS → PMI Jul 18, 13:05 UTCJul 18, 17:00 UTC3h 55m
2026-07-18 EZY86YE MAN → ATH Jul 18, 07:35 UTCJul 18, 10:50 UTC3h 15m

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

Mode-S 40666A frequently asked

What is Mode-S code 40666A?
40666A is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZUP.
Where is Mode-S 40666A registered?
Mode-S code 40666A 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 40666A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40666A, octal 20063152, decimal 4,220,522.
What flights does 40666A operate?
Mode-S 40666A has broadcast 20 distinct callsigns, including EZY87QD, EZY73BF, EZY67GT, EZY37YP, EZY34GN.