Apparatus

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sensors Mode-S transponder

3DED20

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-HKAY · BELL 505 JetRanger X

Hex
3DED20
Octal
17366440
Decimal
4,058,400
Country
DE
Tail
D-HKAY
Type
B505
No current signal · last broadcast Jul 25, 11:30 UTC
Flights observed
99
Distinct callsigns
1
Country
DE
Last broadcast
Jul 25, 11:30 UTC

Last known position

Most recent position reported by Mode-S 3DED20.

Country allocation

The ICAO 24-bit address 3DED20 falls within the block assigned to Germany (DE) by ICAO Annex 10, Volume III. Every aircraft registered in Germany 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
DHKAY - 99 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 DHKAY SGE → SGE Jul 25, 11:20 UTCJul 25, 11:30 UTC10m
2026-07-25 DHKAY SGE → SGE Jul 25, 10:20 UTCJul 25, 10:55 UTC35m
2026-07-25 DHKAY SGE → SGE Jul 25, 08:15 UTCJul 25, 09:00 UTC45m
2026-07-22 DHKAY - Jul 22, 11:10 UTCJul 22, 11:55 UTC45m
2026-07-21 DHKAY SGE → SGE Jul 21, 06:15 UTCJul 21, 06:50 UTC35m
2026-07-19 DHKAY SGE → SGE Jul 19, 14:40 UTCJul 19, 15:15 UTC35m
2026-07-18 DHKAY SGE → SGE Jul 18, 14:10 UTCJul 18, 14:30 UTC20m
2026-07-18 DHKAY SGE → SGE Jul 18, 11:45 UTCJul 18, 12:25 UTC40m
2026-07-18 DHKAY - Jul 18, 09:40 UTCJul 18, 10:25 UTC45m
2026-07-17 DHKAY SGE → SGE Jul 17, 13:50 UTCJul 17, 14:20 UTC30m
2026-07-17 DHKAY SGE → SGE Jul 17, 12:00 UTCJul 17, 12:55 UTC55m
2026-07-16 DHKAY SGE → SGE Jul 16, 10:45 UTCJul 16, 11:20 UTC35m
2026-07-15 DHKAY SGE → SGE Jul 15, 09:20 UTCJul 15, 10:50 UTC1h 30m
2026-07-12 DHKAY SGE → SGE Jul 12, 14:20 UTCJul 12, 14:50 UTC30m
2026-07-12 DHKAY SGE → SGE Jul 12, 11:50 UTCJul 12, 12:05 UTC15m
2026-07-12 DHKAY SGE → SGE Jul 12, 11:35 UTCJul 12, 11:45 UTC10m
2026-07-12 DHKAY SGE → SGE Jul 12, 11:15 UTCJul 12, 11:25 UTC10m
2026-07-11 DHKAY SGE → SGE Jul 11, 12:30 UTCJul 11, 12:50 UTC20m
2026-07-11 DHKAY SGE → SGE Jul 11, 10:40 UTCJul 11, 11:25 UTC45m
2026-07-11 DHKAY SGE → SGE Jul 11, 09:35 UTCJul 11, 10:05 UTC30m
2026-07-11 DHKAY SGE → SGE Jul 11, 08:35 UTCJul 11, 09:15 UTC40m
2026-07-11 DHKAY SGE → SGE Jul 11, 07:45 UTCJul 11, 08:10 UTC25m
2026-07-07 DHKAY SGE → SGE Jul 7, 14:15 UTCJul 7, 14:25 UTC10m
2026-07-07 DHKAY SGE → SGE Jul 7, 11:10 UTCJul 7, 11:45 UTC35m
2026-07-07 DHKAY SGE → SGE Jul 7, 10:50 UTCJul 7, 11:05 UTC15m
2026-07-06 DHKAY SGE → SGE Jul 6, 12:30 UTCJul 6, 13:20 UTC50m
2026-07-04 DHKAY SGE → SGE Jul 4, 14:30 UTCJul 4, 15:55 UTC1h 25m
2026-07-04 DHKAY SGE → SGE Jul 4, 11:05 UTCJul 4, 11:45 UTC40m
2026-07-04 DHKAY SGE → SGE Jul 4, 09:00 UTCJul 4, 09:35 UTC35m
2026-07-04 DHKAY SGE → SGE Jul 4, 07:55 UTCJul 4, 08:45 UTC50m
2026-06-30 DHKAY SGE → SGE Jun 30, 10:00 UTCJun 30, 10:05 UTC5m
2026-06-29 DHKAY - Jun 29, 14:34 UTCJun 29, 15:24 UTC50m
2026-06-29 DHKAY SGE → SGE Jun 29, 13:54 UTCJun 29, 14:14 UTC20m
2026-06-27 DHKAY SGE → SGE Jun 27, 09:24 UTCJun 27, 10:19 UTC55m
2026-06-27 DHKAY SGE → SGE Jun 27, 07:30 UTCJun 27, 08:14 UTC45m
2026-06-26 DHKAY - Jun 26, 09:10 UTCJun 26, 09:50 UTC40m
2026-06-26 DHKAY SGE → SGE Jun 26, 08:00 UTCJun 26, 08:45 UTC45m
2026-06-24 DHKAY SGE → SGE Jun 24, 17:10 UTCJun 24, 17:29 UTC20m
2026-06-24 DHKAY SGE → SGE Jun 24, 13:40 UTCJun 24, 14:34 UTC55m
2026-06-21 DHKAY SGE → SGE Jun 21, 14:50 UTCJun 21, 15:59 UTC1h 10m
2026-06-20 DHKAY SGE → SGE Jun 20, 14:19 UTCJun 20, 14:59 UTC40m
2026-06-20 DHKAY SGE → SGE Jun 20, 11:54 UTCJun 20, 12:50 UTC55m
2026-06-19 DHKAY - Jun 19, 15:19 UTCJun 19, 16:14 UTC55m
2026-06-19 DHKAY SGE → SGE Jun 19, 12:19 UTCJun 19, 13:09 UTC50m
2026-06-19 DHKAY SGE → SGE Jun 19, 11:20 UTCJun 19, 11:39 UTC20m
2026-06-18 DHKAY SGE → SGE Jun 18, 10:40 UTCJun 18, 11:15 UTC35m
2026-06-17 DHKAY SGE → SGE Jun 17, 16:15 UTCJun 17, 16:55 UTC40m
2026-06-17 DHKAY SGE → SGE Jun 17, 09:30 UTCJun 17, 10:25 UTC55m
2026-06-14 DHKAY SGE → SGE Jun 14, 12:40 UTCJun 14, 12:55 UTC15m
2026-06-14 DHKAY - Jun 14, 10:20 UTCJun 14, 11:20 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 D-HKAY page for operator, model, and routing details .

Mode-S 3DED20 frequently asked

What is Mode-S code 3DED20?
3DED20 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-HKAY.
Where is Mode-S 3DED20 registered?
Mode-S code 3DED20 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3DED20 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 11:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3DED20, octal 17366440, decimal 4,058,400.
What flights does 3DED20 operate?
Mode-S 3DED20 has broadcast 1 distinct callsign, including DHKAY.