sensors Mode-S transponder

4010ED

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EZBY · AIRBUS A-319

Hex
4010ED
Octal
20010355
Decimal
4,198,637
Country
GB
Tail
G-EZBY
Type
A319
Photo of G-EZBY
Broadcasting now · callsign EZY39WY · 2,675 ft
Flights observed
14
Distinct callsigns
8
Country
GB
Last broadcast
21h ago

Current position

4010ED is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4010ED 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 8 distinct

Callsign Airline Flights Last seen
EZY47DZ - 3 2026-04-13
EZY16VL - 3 2026-04-13
EZY82GA - 2 2026-04-14
EZY19YD - 2 2026-04-13
EZY94ZH - 1 2026-04-13
EZY879U - 1 2026-04-12
EZY24KT - 1 2026-04-13
EZY21YK - 1 2026-04-14

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 EZY82GA - Apr 14, 09:10 UTCApr 14, 09:45 UTC35m
2026-04-14 EZY82GA - Apr 14, 08:10 UTCApr 14, 09:05 UTC55m
2026-04-14 EZY21YK - Apr 14, 05:45 UTCApr 14, 07:10 UTC1h 25m
2026-04-13 EZY19YD - Apr 13, 19:50 UTCApr 13, 20:50 UTC1h 0m
2026-04-13 EZY19YD - Apr 13, 18:35 UTCApr 13, 20:10 UTC1h 35m
2026-04-13 EZY47DZ - Apr 13, 16:15 UTCApr 13, 17:20 UTC1h 5m
2026-04-13 EZY47DZ - Apr 13, 15:50 UTCApr 13, 17:20 UTC1h 30m
2026-04-13 EZY47DZ - Apr 13, 15:20 UTCApr 13, 16:15 UTC55m
2026-04-13 EZY16VL - Apr 13, 12:20 UTCApr 13, 13:35 UTC1h 15m
2026-04-13 EZY16VL - Apr 13, 11:55 UTCApr 13, 13:35 UTC1h 40m
2026-04-13 EZY16VL - Apr 13, 11:30 UTCApr 13, 12:15 UTC45m
2026-04-13 EZY94ZH LGW → VLC Apr 13, 08:25 UTCApr 13, 10:25 UTC2h 0m
2026-04-13 EZY24KT - Apr 13, 06:10 UTCApr 13, 07:10 UTC1h 0m
2026-04-12 EZY879U - Apr 12, 18:30 UTCApr 12, 19:30 UTC1h 0m

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

Mode-S 4010ED frequently asked

What is Mode-S code 4010ED?
4010ED is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EZBY.
Where is Mode-S 4010ED registered?
Mode-S code 4010ED 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 4010ED broadcasting right now?
Yes. Mode-S 4010ED is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4010ED, octal 20010355, decimal 4,198,637.
What flights does 4010ED operate?
Mode-S 4010ED has broadcast 8 distinct callsigns, including EZY47DZ, EZY16VL, EZY82GA, EZY19YD, EZY94ZH.