sensors Mode-S transponder

406E66

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZOU · AIRBUS A-320

Hex
406E66
Octal
20067146
Decimal
4,222,566
Country
GB
Tail
G-EZOU
Type
A320
No current signal · last broadcast 5h ago
Flights observed
477
Distinct callsigns
20
Country
GB
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 406E66.

Country allocation

The ICAO 24-bit address 406E66 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 - 10 2026-07-13
EZY34GN - 10 2026-07-13
EZY72YV - 8 2026-07-14
EZY64WG - 8 2026-07-14
EZY25PX - 8 2026-07-13
EZY5615 - 5 2026-07-14
EZY46MU - 5 2026-07-13
EZY35HU - 5 2026-07-14
EZY97TM easyJet 4 2026-06-08
EZY87QD - 4 2026-07-11
EZY84YT - 4 2026-07-04
EZY69VV easyJet 4 2026-06-06
EZY46VY - 4 2026-07-04
EZY34GB easyJet 4 2026-06-08
EZY29RU - 4 2026-07-04
EZY2706 easyJet 4 2026-06-06
EZY25GZ easyJet 4 2026-06-08
EZY21VB easyJet 4 2026-05-31
EZY151Z - 4 2026-05-31
EZY84ZJ - 3 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EZY35HU - Jul 14, 18:30 UTCJul 14, 22:50 UTC4h 19m
2026-07-14 EZY5615 - Jul 14, 13:10 UTCJul 14, 17:05 UTC3h 55m
2026-07-14 EZY64WG FAO → NCL Jul 14, 08:35 UTCJul 14, 11:15 UTC2h 40m
2026-07-14 EZY72YV NCL → FAO Jul 14, 04:40 UTCJul 14, 07:50 UTC3h 10m
2026-07-13 EZY61NZ - Jul 13, 18:45 UTCJul 13, 21:25 UTC2h 40m
2026-07-13 EZY34GN - Jul 13, 14:45 UTCJul 13, 17:35 UTC2h 50m
2026-07-13 EZY25PX - Jul 13, 10:25 UTCJul 13, 13:50 UTC3h 25m
2026-07-13 EZY46MU - Jul 13, 05:55 UTCJul 13, 08:50 UTC2h 55m
2026-07-12 EZY84ZJ NCE → NCL Jul 12, 21:40 UTCJul 12, 23:45 UTC2h 5m
2026-07-12 EZY83VA NCL → NCE Jul 12, 17:20 UTCJul 12, 19:25 UTC2h 5m
2026-07-12 EZY7859 - Jul 12, 14:55 UTCJul 12, 15:50 UTC55m
2026-07-12 EZY7860 NCL → AMS Jul 12, 12:50 UTCJul 12, 13:45 UTC55m
2026-07-12 EZY64WG FAO → NCL Jul 12, 08:45 UTCJul 12, 11:25 UTC2h 40m
2026-07-12 EZY72YV NCL → FAO Jul 12, 04:40 UTCJul 12, 07:31 UTC2h 50m
2026-07-11 EZY35HU - Jul 11, 20:15 UTCJul 12, 00:20 UTC4h 5m
2026-07-11 EZY5615 - Jul 11, 14:15 UTCJul 11, 18:00 UTC3h 45m
2026-07-11 EZY34RN MLA → NCL Jul 11, 09:50 UTCJul 11, 13:05 UTC3h 15m
2026-07-11 EZY87QD NCL → MLA Jul 11, 05:10 UTCJul 11, 08:25 UTC3h 15m
2026-07-10 EZY61NZ - Jul 10, 18:10 UTCJul 10, 20:50 UTC2h 40m
2026-07-10 EZY34GN - Jul 10, 13:55 UTCJul 10, 16:40 UTC2h 45m
2026-07-10 EZY25PX - Jul 10, 09:05 UTCJul 10, 12:25 UTC3h 20m
2026-07-10 EZY46MU - Jul 10, 04:10 UTCJul 10, 06:50 UTC2h 40m
2026-07-09 EZY39GY NBE → NCL Jul 9, 19:10 UTCJul 9, 22:15 UTC3h 5m
2026-07-09 EZY87RK - Jul 9, 14:50 UTCJul 9, 17:55 UTC3h 5m
2026-07-09 EZY73BF ALC → NCL Jul 9, 10:40 UTCJul 9, 13:15 UTC2h 35m
2026-07-09 EZY67GT NCL → ALC Jul 9, 06:40 UTCJul 9, 09:25 UTC2h 45m
2026-07-08 EZY17GN - Jul 8, 16:50 UTCJul 8, 21:30 UTC4h 40m
2026-07-08 EZY49XZ - Jul 8, 11:30 UTCJul 8, 15:25 UTC3h 55m
2026-07-08 EZY53UW - Jul 8, 09:15 UTCJul 8, 10:25 UTC1h 10m
2026-07-08 EZY23FC - Jul 8, 06:40 UTCJul 8, 07:55 UTC1h 15m
2026-07-07 EZY35HU - Jul 7, 18:25 UTCJul 7, 22:45 UTC4h 20m
2026-07-07 EZY5615 - Jul 7, 13:05 UTCJul 7, 16:45 UTC3h 40m
2026-07-07 EZY64WG FAO → NCL Jul 7, 08:35 UTCJul 7, 11:25 UTC2h 50m
2026-07-07 EZY72YV NCL → FAO Jul 7, 04:35 UTCJul 7, 07:15 UTC2h 40m
2026-07-06 EZY61NZ - Jul 6, 19:00 UTCJul 6, 21:50 UTC2h 50m
2026-07-06 EZY34GN - Jul 6, 14:45 UTCJul 6, 17:30 UTC2h 45m
2026-07-06 EZY25PX - Jul 6, 10:15 UTCJul 6, 13:40 UTC3h 25m
2026-07-06 EZY46MU - Jul 6, 05:55 UTCJul 6, 08:35 UTC2h 40m
2026-07-05 EZY17GN AYT → NCL Jul 5, 19:45 UTCJul 6, 00:20 UTC4h 35m
2026-07-05 EZY49XZ NCL → AYT Jul 5, 14:25 UTCJul 5, 18:20 UTC3h 55m
2026-07-05 EZY39GY - Jul 5, 09:45 UTCJul 5, 13:10 UTC3h 25m
2026-07-05 EZY87RK - Jul 5, 05:35 UTCJul 5, 08:30 UTC2h 55m
2026-07-04 EZY46VY - Jul 4, 21:45 UTCJul 5, 00:15 UTC2h 30m
2026-07-04 EZY84YT - Jul 4, 18:15 UTCJul 4, 20:35 UTC2h 20m
2026-07-04 EZY75ZU RHO → NCL Jul 4, 12:45 UTCJul 4, 17:20 UTC4h 35m
2026-07-04 EZY29RU NCL → RHO Jul 4, 07:40 UTCJul 4, 11:20 UTC3h 40m
2026-07-03 EZY61NZ - Jul 3, 18:00 UTCJul 3, 20:55 UTC2h 55m
2026-07-03 EZY34GN - Jul 3, 14:00 UTCJul 3, 16:40 UTC2h 40m
2026-07-03 EZY25PX - Jul 3, 09:10 UTCJul 3, 12:35 UTC3h 25m
2026-07-03 EZY46MU - Jul 3, 04:25 UTCJul 3, 07:00 UTC2h 35m

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

Mode-S 406E66 frequently asked

What is Mode-S code 406E66?
406E66 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZOU.
Where is Mode-S 406E66 registered?
Mode-S code 406E66 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 406E66 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406E66, octal 20067146, decimal 4,222,566.
What flights does 406E66 operate?
Mode-S 406E66 has broadcast 20 distinct callsigns, including EZY61NZ, EZY34GN, EZY72YV, EZY64WG, EZY25PX.