sensors Mode-S transponder

40666D

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZUT · AIRBUS A-320

Hex
40666D
Octal
20063155
Decimal
4,220,525
Country
GB
Tail
G-EZUT
Type
A320
Broadcasting now · callsign EZY35HU · 32,000 ft
Flights observed
250
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Current position

40666D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 40666D 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
EZY61NZ easyJet 9 2026-05-28
EZY34GN easyJet 9 2026-05-28
EZY64WG - 8 2026-05-28
EZY72YV - 7 2026-05-28
EZY87QD easyJet 6 2026-05-30
EZY47QN easyJet 6 2026-04-23
EZY34RN easyJet 6 2026-05-30
EZY84YT - 5 2026-05-27
EZY46VY - 5 2026-05-27
EZY26NB easyJet 5 2026-04-23
EZY14FK easyJet 5 2026-05-22
EZY5615 easyJet 4 2026-05-30
EZY14GA easyJet 4 2026-05-22
EZY84ZJ easyJet 3 2026-05-17
EZY83VA easyJet 3 2026-05-17
EZY75ZU easyJet 3 2026-05-23
EZY53NP easyJet 3 2026-04-20
EZY46MU easyJet 3 2026-05-29
EZY46DM easyJet 3 2026-04-20
EZY35HU easyJet 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 EZY5615 NCL → DLM May 30, 15:00 UTCMay 30, 18:45 UTC3h 45m
2026-05-30 EZY34RN LTN → CTA May 30, 10:00 UTCMay 30, 13:30 UTC3h 30m
2026-05-30 EZY87QD LTN → ALC May 30, 05:10 UTCMay 30, 08:30 UTC3h 20m
2026-05-29 EZY73BF - May 29, 17:45 UTCMay 29, 20:25 UTC2h 40m
2026-05-29 EZY67GT - May 29, 14:00 UTCMay 29, 16:30 UTC2h 30m
2026-05-29 EZY25PX CFU → NCL May 29, 08:55 UTCMay 29, 12:10 UTC3h 15m
2026-05-29 EZY46MU NCL → CFU May 29, 04:35 UTCMay 29, 07:30 UTC2h 55m
2026-05-28 EZY61NZ AGP → NCL May 28, 19:10 UTCMay 28, 21:55 UTC2h 45m
2026-05-28 EZY34GN NCL → AGP May 28, 14:55 UTCMay 28, 17:45 UTC2h 50m
2026-05-28 EZY64WG FAO → NCL May 28, 10:40 UTCMay 28, 13:15 UTC2h 35m
2026-05-28 EZY72YV NCL → FAO May 28, 06:45 UTCMay 28, 09:40 UTC2h 55m
2026-05-27 EZY34RN LTN → CTA May 27, 18:50 UTCMay 27, 22:10 UTC3h 20m
2026-05-27 EZY87QD LTN → ALC May 27, 14:20 UTCMay 27, 17:40 UTC3h 20m
2026-05-27 EZY46VY - May 27, 10:20 UTCMay 27, 12:50 UTC2h 30m
2026-05-27 EZY84YT - May 27, 06:20 UTCMay 27, 09:00 UTC2h 40m
2026-05-26 EZY35HU DLM → NCL May 26, 18:50 UTCMay 26, 23:05 UTC4h 15m
2026-05-26 EZY5615 NCL → DLM May 26, 13:24 UTCMay 26, 17:25 UTC4h 0m
2026-05-26 EZY64WG FAO → NCL May 26, 08:45 UTCMay 26, 11:30 UTC2h 45m
2026-05-26 EZY72YV NCL → FAO May 26, 04:50 UTCMay 26, 07:40 UTC2h 50m
2026-05-25 EZY61NZ AGP → NCL May 25, 19:25 UTCMay 25, 22:10 UTC2h 45m
2026-05-25 EZY34GN NCL → AGP May 25, 15:25 UTCMay 25, 18:15 UTC2h 50m
2026-05-25 EZY25PX CFU → NCL May 25, 11:00 UTCMay 25, 14:00 UTC3h 0m
2026-05-25 EZY46MU NCL → CFU May 25, 05:55 UTCMay 25, 08:50 UTC2h 55m
2026-05-24 EZY17GN AYT → NCL May 24, 19:25 UTCMay 24, 23:40 UTC4h 15m
2026-05-24 EZY49XZ NCL → AYT May 24, 14:10 UTCMay 24, 18:15 UTC4h 5m
2026-05-24 EZY87RK NCL → NBE May 24, 05:35 UTCMay 24, 12:50 UTC7h 15m
2026-05-23 EZY46VY - May 23, 21:00 UTCMay 23, 23:25 UTC2h 25m
2026-05-23 EZY84YT - May 23, 17:10 UTCMay 23, 19:25 UTC2h 16m
2026-05-23 EZY75ZU RHO → NCL May 23, 12:00 UTCMay 23, 16:00 UTC4h 0m
2026-05-23 EZY29RU NCL → RHO May 23, 06:40 UTCMay 23, 10:35 UTC3h 55m
2026-05-22 EZY61NZ AGP → NCL May 22, 18:15 UTCMay 22, 20:50 UTC2h 35m
2026-05-22 EZY34GN NCL → AGP May 22, 14:00 UTCMay 22, 16:55 UTC2h 55m
2026-05-22 EZY14FK FCO → NCL May 22, 12:40 UTCMay 22, 12:50 UTC10m
2026-05-22 EZY14FK FCO → NCL May 22, 10:15 UTCMay 22, 12:35 UTC2h 20m
2026-05-22 EZY14GA NCL → FCO May 22, 06:25 UTCMay 22, 08:55 UTC2h 30m
2026-05-21 EZY61NZ AGP → NCL May 21, 18:20 UTCMay 21, 21:00 UTC2h 40m
2026-05-21 EZY34GN NCL → AGP May 21, 14:25 UTCMay 21, 17:20 UTC2h 55m
2026-05-21 EZY64WG FAO → NCL May 21, 10:00 UTCMay 21, 12:35 UTC2h 35m
2026-05-21 EZY72YV NCL → FAO May 21, 06:05 UTCMay 21, 09:00 UTC2h 55m
2026-05-20 EZY34RN LTN → CTA May 20, 18:25 UTCMay 20, 22:00 UTC3h 35m
2026-05-20 EZY87QD LTN → ALC May 20, 14:15 UTCMay 20, 17:25 UTC3h 10m
2026-05-20 EZY46VY - May 20, 10:10 UTCMay 20, 12:55 UTC2h 45m
2026-05-20 EZY84YT - May 20, 06:45 UTCMay 20, 09:00 UTC2h 15m
2026-05-19 EZY35HU DLM → NCL May 19, 19:00 UTCMay 19, 22:55 UTC3h 55m
2026-05-19 EZY5615 NCL → DLM May 19, 13:25 UTCMay 19, 17:15 UTC3h 50m
2026-05-19 EZY64WG FAO → NCL May 19, 08:50 UTCMay 19, 11:35 UTC2h 45m
2026-05-19 EZY72YV NCL → FAO May 19, 04:50 UTCMay 19, 07:40 UTC2h 50m
2026-05-18 EZY61NZ AGP → NCL May 18, 18:50 UTCMay 18, 21:35 UTC2h 45m
2026-05-18 EZY34GN NCL → AGP May 18, 14:55 UTCMay 18, 17:40 UTC2h 45m
2026-05-18 EZY25PX CFU → NCL May 18, 10:35 UTCMay 18, 14:00 UTC3h 25m

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

Mode-S 40666D frequently asked

What is Mode-S code 40666D?
40666D is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZUT.
Where is Mode-S 40666D registered?
Mode-S code 40666D 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 40666D broadcasting right now?
Yes. Mode-S 40666D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40666D, octal 20063155, decimal 4,220,525.
What flights does 40666D operate?
Mode-S 40666D has broadcast 20 distinct callsigns, including EZY61NZ, EZY34GN, EZY64WG, EZY72YV, EZY87QD.