sensors Mode-S transponder

4080DF

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-SUNO · AIRBUS A-321neo

Hex
4080DF
Octal
20100337
Decimal
4,227,295
Country
GB
Tail
G-SUNO
Type
A21N
No current signal · last broadcast 14h ago
Flights observed
13
Distinct callsigns
7
Country
GB
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 4080DF.

Country allocation

The ICAO 24-bit address 4080DF 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 7 distinct

Callsign Airline Flights Last seen
EXS94ZP - 3 2026-04-13
EXS52GH - 3 2026-04-13
EXS66ED Jet2.com 2 2026-04-13
EXS321P - 2 2026-04-13
EXS5UW Jet2.com 1 2026-04-14
EXS52KG - 1 2026-04-12
EXS1134 - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 EXS5UW ADB → BRS Apr 14, 07:25 UTCApr 14, 09:05 UTC1h 40m
2026-04-13 EXS1134 - Apr 13, 20:25 UTCApr 13, 23:40 UTC3h 15m
2026-04-13 EXS321P - Apr 13, 16:15 UTCApr 13, 18:35 UTC2h 20m
2026-04-13 EXS321P - Apr 13, 16:05 UTCApr 13, 16:15 UTC10m
2026-04-13 EXS94ZP - Apr 13, 12:20 UTCApr 13, 13:55 UTC1h 35m
2026-04-13 EXS94ZP - Apr 13, 11:55 UTCApr 13, 13:55 UTC2h 0m
2026-04-13 EXS94ZP - Apr 13, 11:15 UTCApr 13, 12:15 UTC1h 0m
2026-04-13 EXS52GH - Apr 13, 08:20 UTCApr 13, 09:15 UTC55m
2026-04-13 EXS52GH - Apr 13, 07:55 UTCApr 13, 09:15 UTC1h 20m
2026-04-13 EXS52GH - Apr 13, 06:50 UTCApr 13, 08:15 UTC1h 25m
2026-04-13 EXS66ED BHX → SZG Apr 13, 00:20 UTCApr 13, 00:55 UTC35m
2026-04-12 EXS66ED BHX → SZG Apr 12, 23:55 UTCApr 13, 00:55 UTC1h 0m
2026-04-12 EXS52KG - Apr 12, 17:15 UTCApr 12, 18:50 UTC1h 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-SUNO page for operator, model, and routing details .

Mode-S 4080DF frequently asked

What is Mode-S code 4080DF?
4080DF is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-SUNO.
Where is Mode-S 4080DF registered?
Mode-S code 4080DF 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 4080DF broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4080DF, octal 20100337, decimal 4,227,295.
What flights does 4080DF operate?
Mode-S 4080DF has broadcast 7 distinct callsigns, including EXS94ZP, EXS52GH, EXS66ED, EXS321P, EXS5UW.