sensors Mode-S transponder

405B64

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZDK · AIRBUS A-319

Hex
405B64
Octal
20055544
Decimal
4,217,700
Country
GB
Tail
G-EZDK
Type
A319
Photo of G-EZDK
Broadcasting now · callsign EZY96CP · 23,000 ft
Flights observed
16
Distinct callsigns
14
Country
GB
Last broadcast
18h ago

Current position

405B64 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 405B64 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 14 distinct

Callsign Airline Flights Last seen
EZY47VR - 2 2026-04-13
EZY37KV - 2 2026-04-14
EZY96CP - 1 2026-04-14
EZY96BC - 1 2026-04-13
EZY896F - 1 2026-04-13
EZY84VT - 1 2026-04-13
EZY67XZ easyJet 1 2026-04-12
EZY67QD - 1 2026-04-14
EZY65KW - 1 2026-04-13
EZY42ZW - 1 2026-04-13
EZY38VH - 1 2026-04-12
EZY2316 - 1 2026-04-13
EZY16TP - 1 2026-04-13
EZY13FR - 1 2026-04-14

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-04-14 EZY13FR - Apr 14, 10:45 UTCApr 14, 11:05 UTC20m
2026-04-14 EZY37KV - Apr 14, 09:10 UTCApr 14, 09:40 UTC30m
2026-04-14 EZY37KV - Apr 14, 08:55 UTCApr 14, 09:05 UTC10m
2026-04-14 EZY67QD AMS → LTN Apr 14, 07:20 UTCApr 14, 08:05 UTC45m
2026-04-14 EZY96CP - Apr 14, 05:30 UTCApr 14, 06:15 UTC45m
2026-04-13 EZY2316 - Apr 13, 22:50 UTCApr 13, 23:45 UTC55m
2026-04-13 EZY65KW - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 EZY84VT BOD → LTN Apr 13, 17:00 UTCApr 13, 18:20 UTC1h 20m
2026-04-13 EZY47VR - Apr 13, 15:50 UTCApr 13, 16:05 UTC15m
2026-04-13 EZY47VR - Apr 13, 14:50 UTCApr 13, 16:05 UTC1h 15m
2026-04-13 EZY96BC - Apr 13, 12:50 UTCApr 13, 14:05 UTC1h 15m
2026-04-13 EZY896F - Apr 13, 10:40 UTCApr 13, 11:40 UTC1h 0m
2026-04-13 EZY42ZW - Apr 13, 08:20 UTCApr 13, 09:40 UTC1h 20m
2026-04-13 EZY16TP - Apr 13, 05:55 UTCApr 13, 07:10 UTC1h 15m
2026-04-12 EZY67XZ GVA → LTN Apr 12, 19:40 UTCApr 12, 20:15 UTC35m
2026-04-12 EZY38VH - Apr 12, 17:15 UTCApr 12, 18:35 UTC1h 20m

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

Mode-S 405B64 frequently asked

What is Mode-S code 405B64?
405B64 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZDK.
Where is Mode-S 405B64 registered?
Mode-S code 405B64 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 405B64 broadcasting right now?
Yes. Mode-S 405B64 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 405B64, octal 20055544, decimal 4,217,700.
What flights does 405B64 operate?
Mode-S 405B64 has broadcast 14 distinct callsigns, including EZY47VR, EZY37KV, EZY96CP, EZY96BC, EZY896F.