Apparatus

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sensors Mode-S transponder

4036D5

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-DACF · CESSNA 152

Hex
4036D5
Octal
20033325
Decimal
4,208,341
Country
GB
Tail
G-DACF
Type
C152
No current signal · last broadcast 1d ago
Flights observed
210
Distinct callsigns
1
Country
GB
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4036D5.

Country allocation

The ICAO 24-bit address 4036D5 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 1 distinct

Callsign Airline Flights Last seen
GDACF - 210 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 GDACF - Jul 26, 15:55 UTCJul 26, 16:50 UTC55m
2026-07-26 GDACF - Jul 26, 14:20 UTCJul 26, 15:15 UTC55m
2026-07-26 GDACF - Jul 26, 11:25 UTCJul 26, 12:20 UTC55m
2026-07-26 GDACF - Jul 26, 08:35 UTCJul 26, 10:45 UTC2h 10m
2026-07-25 GDACF - Jul 25, 14:40 UTCJul 25, 17:00 UTC2h 20m
2026-07-25 GDACF - Jul 25, 13:00 UTCJul 25, 14:00 UTC1h 0m
2026-07-25 GDACF - Jul 25, 11:05 UTCJul 25, 12:20 UTC1h 15m
2026-07-25 GDACF - Jul 25, 09:55 UTCJul 25, 10:20 UTC25m
2026-07-25 GDACF - Jul 25, 08:35 UTCJul 25, 09:20 UTC45m
2026-07-24 GDACF - Jul 24, 14:40 UTCJul 24, 15:10 UTC30m
2026-07-24 GDACF - Jul 24, 13:00 UTCJul 24, 13:50 UTC50m
2026-07-24 GDACF - Jul 24, 10:10 UTCJul 24, 11:05 UTC55m
2026-07-24 GDACF - Jul 24, 08:30 UTCJul 24, 09:25 UTC55m
2026-07-23 GDACF - Jul 23, 15:30 UTCJul 23, 16:25 UTC55m
2026-07-23 GDACF - Jul 23, 11:40 UTCJul 23, 12:30 UTC50m
2026-07-23 GDACF - Jul 23, 10:10 UTCJul 23, 11:05 UTC55m
2026-07-23 GDACF - Jul 23, 08:40 UTCJul 23, 09:35 UTC55m
2026-07-21 GDACF - Jul 21, 08:35 UTCJul 21, 10:45 UTC2h 10m
2026-07-20 GDACF - Jul 20, 16:05 UTCJul 20, 16:55 UTC50m
2026-07-20 GDACF - Jul 20, 11:40 UTCJul 20, 12:30 UTC50m
2026-07-20 GDACF - Jul 20, 08:40 UTCJul 20, 10:55 UTC2h 15m
2026-07-18 GDACF - Jul 18, 08:25 UTCJul 18, 11:35 UTC3h 10m
2026-07-17 GDACF - Jul 17, 16:00 UTCJul 17, 16:55 UTC55m
2026-07-17 GDACF - Jul 17, 13:05 UTCJul 17, 13:55 UTC50m
2026-07-17 GDACF - Jul 17, 08:30 UTCJul 17, 11:55 UTC3h 25m
2026-07-16 GDACF - Jul 16, 12:44 UTCJul 16, 15:00 UTC2h 15m
2026-07-16 GDACF - Jul 16, 08:05 UTCJul 16, 11:54 UTC3h 50m
2026-07-15 GDACF - Jul 15, 08:25 UTCJul 15, 10:40 UTC2h 15m
2026-07-14 GDACF - Jul 14, 10:00 UTCJul 14, 13:45 UTC3h 45m
2026-07-14 GDACF - Jul 14, 08:35 UTCJul 14, 09:25 UTC50m
2026-07-13 GDACF - Jul 13, 15:40 UTCJul 13, 16:55 UTC1h 15m
2026-07-13 GDACF - Jul 13, 11:20 UTCJul 13, 13:50 UTC2h 30m
2026-07-13 GDACF - Jul 13, 08:40 UTCJul 13, 10:00 UTC1h 20m
2026-07-11 GDACF - Jul 11, 14:45 UTCJul 11, 16:55 UTC2h 10m
2026-07-11 GDACF - Jul 11, 08:25 UTCJul 11, 14:05 UTC5h 40m
2026-07-10 GDACF - Jul 10, 13:10 UTCJul 10, 16:50 UTC3h 40m
2026-07-10 GDACF - Jul 10, 11:40 UTCJul 10, 12:35 UTC55m
2026-07-10 GDACF - Jul 10, 08:40 UTCJul 10, 09:30 UTC50m
2026-07-09 GDACF - Jul 9, 11:00 UTCJul 9, 11:55 UTC55m
2026-07-09 GDACF - Jul 9, 08:20 UTCJul 9, 10:25 UTC2h 5m
2026-07-08 GDACF - Jul 8, 08:20 UTCJul 8, 10:40 UTC2h 20m
2026-07-07 GDACF - Jul 7, 16:00 UTCJul 7, 16:50 UTC50m
2026-07-07 GDACF - Jul 7, 13:15 UTCJul 7, 15:25 UTC2h 10m
2026-07-07 GDACF - Jul 7, 10:00 UTCJul 7, 11:45 UTC1h 45m
2026-07-07 GDACF - Jul 7, 08:30 UTCJul 7, 09:20 UTC50m
2026-07-06 GDACF - Jul 6, 14:30 UTCJul 6, 16:45 UTC2h 15m
2026-07-06 GDACF - Jul 6, 13:00 UTCJul 6, 13:55 UTC55m
2026-07-06 GDACF - Jul 6, 11:30 UTCJul 6, 12:25 UTC55m
2026-07-06 GDACF - Jul 6, 09:50 UTCJul 6, 10:55 UTC1h 5m
2026-07-06 GDACF - Jul 6, 08:20 UTCJul 6, 09:15 UTC55m

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

Mode-S 4036D5 frequently asked

What is Mode-S code 4036D5?
4036D5 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-DACF.
Where is Mode-S 4036D5 registered?
Mode-S code 4036D5 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 4036D5 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4036D5, octal 20033325, decimal 4,208,341.
What flights does 4036D5 operate?
Mode-S 4036D5 has broadcast 1 distinct callsign, including GDACF.