sensors Mode-S transponder

40690A

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZWI · AIRBUS A-320

Hex
40690A
Octal
20064412
Decimal
4,221,194
Country
GB
Tail
G-EZWI
Type
A320
Photo of G-EZWI
Broadcasting now · callsign EZY35AY · 34,425 ft
Flights observed
14
Distinct callsigns
12
Country
GB
Last broadcast
20h ago

Current position

40690A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 40690A 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 12 distinct

Callsign Airline Flights Last seen
EZY36BE - 2 2026-04-13
EZY25KV easyJet 2 2026-04-14
EZY92MF easyJet 1 2026-04-14
EZY78ME - 1 2026-04-12
EZY75TD - 1 2026-04-13
EZY74VW - 1 2026-04-13
EZY567B - 1 2026-04-12
EZY51UW - 1 2026-04-13
EZY38MA - 1 2026-04-13
EZY37AN easyJet 1 2026-04-13
EZY27DJ - 1 2026-04-13
EZY241 - 1 2026-04-13

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 EZY25KV OLB → BRS Apr 14, 09:10 UTCApr 14, 10:50 UTC1h 40m
2026-04-14 EZY25KV OLB → BRS Apr 14, 08:35 UTCApr 14, 09:05 UTC30m
2026-04-14 EZY92MF LIS → LTN Apr 14, 05:15 UTCApr 14, 07:10 UTC1h 55m
2026-04-13 EZY27DJ NCL → BRS Apr 13, 20:30 UTCApr 13, 21:20 UTC50m
2026-04-13 EZY241 BRS → NCL Apr 13, 19:00 UTCApr 13, 19:45 UTC45m
2026-04-13 EZY75TD - Apr 13, 16:55 UTCApr 13, 18:15 UTC1h 20m
2026-04-13 EZY37AN BRS → GVA Apr 13, 14:30 UTCApr 13, 15:55 UTC1h 25m
2026-04-13 EZY51UW - Apr 13, 12:50 UTCApr 13, 13:30 UTC40m
2026-04-13 EZY38MA - Apr 13, 11:20 UTCApr 13, 12:00 UTC40m
2026-04-13 EZY74VW TLS → BRS Apr 13, 09:00 UTCApr 13, 10:35 UTC1h 35m
2026-04-13 EZY36BE - Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 EZY36BE BRS → TLS Apr 13, 06:25 UTCApr 13, 08:05 UTC1h 40m
2026-04-12 EZY567B BRS → EDI Apr 12, 19:20 UTCApr 12, 20:10 UTC50m
2026-04-12 EZY78ME - Apr 12, 17:15 UTCApr 12, 17:50 UTC35m

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

Mode-S 40690A frequently asked

What is Mode-S code 40690A?
40690A is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZWI.
Where is Mode-S 40690A registered?
Mode-S code 40690A 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 40690A broadcasting right now?
Yes. Mode-S 40690A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40690A, octal 20064412, decimal 4,221,194.
What flights does 40690A operate?
Mode-S 40690A has broadcast 12 distinct callsigns, including EZY36BE, EZY25KV, EZY92MF, EZY78ME, EZY75TD.