Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

40666B

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZUR · AIRBUS A-320

Hex
40666B
Octal
20063153
Decimal
4,220,523
Country
GB
Tail
G-EZUR
Type
A320
No current signal · last broadcast 2h ago
Flights observed
480
Distinct callsigns
20
Country
GB
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 40666B.

Country allocation

The ICAO 24-bit address 40666B 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
EZY65XP - 7 2026-06-18
EZY39ND - 7 2026-06-18
EZY93QB - 6 2026-06-20
EZY832W - 6 2026-07-11
EZY63ZQ easyJet 6 2026-06-13
EZY59XP - 6 2026-06-17
EZY57LR - 6 2026-07-11
EZY46QG easyJet 6 2026-06-17
EZY41GH - 6 2026-06-20
EZY97CB easyJet 5 2026-06-13
EZY94JP - 5 2026-06-22
EZY859F - 5 2026-06-24
EZY81GZ - 5 2026-06-23
EZY76HZ - 5 2026-06-22
EZY47QN - 5 2026-06-22
EZY36EG - 5 2026-06-24
EZY26NB - 5 2026-06-22
EZY76XB easyJet 4 2026-06-05
EZY68HV easyJet 4 2026-06-18
EZY64JW - 4 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EZY84ZJ NCE → NCL Jul 14, 21:00 UTCJul 14, 23:05 UTC2h 4m
2026-07-14 EZY83VA NCL → NCE Jul 14, 17:35 UTCJul 14, 20:00 UTC2h 25m
2026-07-14 EZY75ZU RHO → NCL Jul 14, 12:15 UTCJul 14, 16:30 UTC4h 15m
2026-07-14 EZY29RU NCL → RHO Jul 14, 06:50 UTCJul 14, 10:35 UTC3h 45m
2026-07-13 EZY34RN MLA → NCL Jul 13, 20:25 UTCJul 13, 23:55 UTC3h 30m
2026-07-13 EZY87QD NCL → MLA Jul 13, 15:10 UTCJul 13, 18:20 UTC3h 10m
2026-07-13 EZY5620 LIS → NCL Jul 13, 10:45 UTCJul 13, 13:15 UTC2h 30m
2026-07-13 EZY5619 NCL → LIS Jul 13, 06:20 UTCJul 13, 08:55 UTC2h 35m
2026-07-12 EZY17GN AYT → NCL Jul 12, 19:50 UTCJul 13, 00:10 UTC4h 20m
2026-07-12 EZY49XZ NCL → AYT Jul 12, 14:20 UTCJul 12, 18:15 UTC3h 55m
2026-07-12 EZY39GY NBE → NCL Jul 12, 09:50 UTCJul 12, 13:05 UTC3h 15m
2026-07-12 EZY87RK NCL → NBE Jul 12, 05:25 UTCJul 12, 08:25 UTC3h 0m
2026-07-11 EZY241 BRS → NCL Jul 11, 22:40 UTCJul 11, 23:25 UTC45m
2026-07-11 EZY7507 FAO → BRS Jul 11, 19:45 UTCJul 11, 21:55 UTC2h 10m
2026-07-11 EZY7508 BRS → FAO Jul 11, 15:50 UTCJul 11, 18:20 UTC2h 30m
2026-07-11 EZY27DJ NCL → BRS Jul 11, 13:45 UTCJul 11, 14:35 UTC50m
2026-07-11 EZY57LR - Jul 11, 11:45 UTCJul 11, 12:15 UTC30m
2026-07-11 EZY78JH - Jul 11, 09:35 UTCJul 11, 10:55 UTC1h 20m
2026-07-11 EZY51NU - Jul 11, 07:05 UTCJul 11, 08:20 UTC1h 15m
2026-07-11 EZY832W NCL → BFS Jul 11, 05:15 UTCJul 11, 05:50 UTC35m
2026-07-10 EZY4689 - Jul 10, 19:50 UTCJul 10, 20:55 UTC1h 5m
2026-07-10 EZY67UB EDI → CDG Jul 10, 17:25 UTCJul 10, 18:40 UTC1h 15m
2026-07-10 EZY89NJ - Jul 10, 15:00 UTCJul 10, 16:20 UTC1h 20m
2026-07-10 EZY4690 NCL → CDG Jul 10, 12:40 UTCJul 10, 13:55 UTC1h 15m
2026-07-10 EZY72EJ - Jul 10, 10:45 UTCJul 10, 11:20 UTC35m
2026-07-10 EZY648E NCL → BFS Jul 10, 09:15 UTCJul 10, 09:55 UTC40m
2026-07-10 EZY57LR - Jul 10, 07:30 UTCJul 10, 08:00 UTC30m
2026-07-10 EZY832W NCL → BFS Jul 10, 06:05 UTCJul 10, 06:45 UTC40m
2026-07-09 EZY39TU - Jul 9, 19:30 UTCJul 9, 20:15 UTC45m
2026-07-09 EZY3843 MXP → BRS Jul 9, 17:05 UTCJul 9, 18:40 UTC1h 35m
2026-07-09 EZY3844 BRS → MXP Jul 9, 14:25 UTCJul 9, 16:10 UTC1h 45m
2026-07-09 EZY62DJ NCL → BRS Jul 9, 12:40 UTCJul 9, 13:25 UTC45m
2026-07-09 EZY7859 AMS → NCL Jul 9, 10:10 UTCJul 9, 11:10 UTC1h 0m
2026-07-09 EZY7860 NCL → AMS Jul 9, 08:05 UTCJul 9, 09:05 UTC1h 0m
2026-07-08 EZY34RN MLA → NCL Jul 8, 20:00 UTCJul 8, 23:20 UTC3h 20m
2026-07-08 EZY87QD NCL → MLA Jul 8, 15:35 UTCJul 8, 18:55 UTC3h 20m
2026-07-08 EZY76CX BRS → NCL Jul 8, 13:30 UTCJul 8, 14:25 UTC55m
2026-07-08 EZY74VW TLS → BRS Jul 8, 10:00 UTCJul 8, 11:25 UTC1h 25m
2026-07-08 EZY36BE BRS → TLS Jul 8, 07:40 UTCJul 8, 09:05 UTC1h 25m
2026-07-08 EZY527C NCL → BRS Jul 8, 06:05 UTCJul 8, 06:50 UTC45m
2026-07-07 EZY241 - Jul 7, 21:00 UTCJul 7, 21:50 UTC50m
2026-07-07 EZY29AU - Jul 7, 19:20 UTCJul 7, 20:10 UTC50m
2026-07-07 EZY957L - Jul 7, 17:00 UTCJul 7, 17:55 UTC55m
2026-07-07 EZY27DJ NCL → BRS Jul 7, 15:30 UTCJul 7, 16:15 UTC45m
2026-07-07 EZY57LR - Jul 7, 13:55 UTCJul 7, 14:35 UTC40m
2026-07-07 EZY98GY PRG → BFS Jul 7, 10:40 UTCJul 7, 13:00 UTC2h 20m
2026-07-07 EZY42PG - Jul 7, 07:40 UTCJul 7, 09:40 UTC2h 0m
2026-07-07 EZY832W NCL → BFS Jul 7, 06:15 UTCJul 7, 06:50 UTC35m
2026-07-06 EZY34RN MLA → NCL Jul 6, 18:40 UTCJul 6, 22:15 UTC3h 35m
2026-07-06 EZY87QD NCL → MLA Jul 6, 14:15 UTCJul 6, 17:25 UTC3h 10m

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

Mode-S 40666B frequently asked

What is Mode-S code 40666B?
40666B is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZUR.
Where is Mode-S 40666B registered?
Mode-S code 40666B 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 40666B broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40666B, octal 20063153, decimal 4,220,523.
What flights does 40666B operate?
Mode-S 40666B has broadcast 20 distinct callsigns, including EZY65XP, EZY39ND, EZY93QB, EZY832W, EZY63ZQ.