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sensors Mode-S transponder

3D1833

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EHKL · ROBIN DR-400

Hex
3D1833
Octal
17214063
Decimal
4,003,891
Country
DE
Tail
D-EHKL
Type
DR40
No current signal · last broadcast 11h ago
Flights observed
38
Distinct callsigns
1
Country
DE
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 3D1833.

Country allocation

The ICAO 24-bit address 3D1833 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
DEHKL - 38 2026-07-04

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-04 DEHKL - Jul 4, 12:45 UTCJul 4, 13:35 UTC50m
2026-07-04 DEHKL - Jul 4, 09:40 UTCJul 4, 10:30 UTC50m
2026-07-04 DEHKL - Jul 4, 03:50 UTCJul 4, 04:05 UTC15m
2026-07-03 DEHKL - Jul 3, 18:15 UTCJul 3, 18:30 UTC15m
2026-07-03 DEHKL - Jul 3, 15:15 UTCJul 3, 16:30 UTC1h 15m
2026-07-03 DEHKL - Jul 3, 12:05 UTCJul 3, 13:00 UTC55m
2026-07-01 DEHKL - Jul 1, 17:20 UTCJul 1, 17:45 UTC25m
2026-06-27 DEHKL - Jun 27, 08:20 UTCJun 27, 09:04 UTC45m
2026-06-27 DEHKL - Jun 27, 06:59 UTCJun 27, 07:49 UTC50m
2026-06-26 DEHKL - Jun 26, 17:15 UTCJun 26, 17:35 UTC20m
2026-06-26 DEHKL - Jun 26, 14:35 UTCJun 26, 14:44 UTC10m
2026-06-26 DEHKL - Jun 26, 06:04 UTCJun 26, 06:39 UTC35m
2026-06-20 DEHKL - Jun 20, 17:34 UTCJun 20, 18:29 UTC55m
2026-06-17 DEHKL - Jun 17, 10:10 UTCJun 17, 10:55 UTC45m
2026-06-14 DEHKL - Jun 14, 10:15 UTCJun 14, 11:15 UTC1h 0m
2026-06-14 DEHKL - Jun 14, 07:30 UTCJun 14, 08:15 UTC45m
2026-06-07 DEHKL - Jun 7, 12:05 UTCJun 7, 12:35 UTC30m
2026-06-07 DEHKL - Jun 7, 10:45 UTCJun 7, 11:00 UTC15m
2026-06-07 DEHKL - Jun 7, 09:35 UTCJun 7, 10:00 UTC25m
2026-06-06 DEHKL - Jun 6, 15:19 UTCJun 6, 15:34 UTC15m
2026-06-06 DEHKL - Jun 6, 12:00 UTCJun 6, 12:49 UTC50m
2026-06-05 DEHKL - Jun 5, 09:50 UTCJun 5, 11:15 UTC1h 25m
2026-06-03 DEHKL - Jun 3, 12:45 UTCJun 3, 12:55 UTC10m
2026-06-02 DEHKL - Jun 2, 10:10 UTCJun 2, 10:35 UTC25m
2026-06-01 DEHKL - Jun 1, 15:15 UTCJun 1, 15:25 UTC10m
2026-06-01 DEHKL - Jun 1, 10:10 UTCJun 1, 12:20 UTC2h 10m
2026-05-31 DEHKL - May 31, 09:15 UTCMay 31, 09:40 UTC25m
2026-05-30 DEHKL - May 30, 10:05 UTCMay 30, 11:25 UTC1h 20m
2026-05-29 DEHKL - May 29, 15:10 UTCMay 29, 16:05 UTC55m
2026-05-29 DEHKL - May 29, 11:35 UTCMay 29, 12:00 UTC25m
2026-05-27 DEHKL - May 27, 08:10 UTCMay 27, 09:15 UTC1h 5m
2026-05-25 DEHKL - May 25, 17:25 UTCMay 25, 17:45 UTC20m
2026-05-17 DEHKL - May 17, 13:55 UTCMay 17, 14:20 UTC25m
2026-05-17 DEHKL - May 17, 10:20 UTCMay 17, 10:50 UTC30m
2026-05-14 DEHKL - May 14, 15:55 UTCMay 14, 16:25 UTC30m
2026-05-09 DEHKL - May 9, 09:25 UTCMay 9, 09:40 UTC15m
2026-05-09 DEHKL - May 9, 07:00 UTCMay 9, 07:45 UTC45m
2026-05-02 DEHKL - May 2, 09:30 UTCMay 2, 11:15 UTC1h 45m

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

Mode-S 3D1833 frequently asked

What is Mode-S code 3D1833?
3D1833 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EHKL.
Where is Mode-S 3D1833 registered?
Mode-S code 3D1833 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D1833 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D1833, octal 17214063, decimal 4,003,891.
What flights does 3D1833 operate?
Mode-S 3D1833 has broadcast 1 distinct callsign, including DEHKL.