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sensors Mode-S transponder

3D205B

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EKMT · CESSNA 172 Skyhawk

Hex
3D205B
Octal
17220133
Decimal
4,005,979
Country
DE
Tail
D-EKMT
Type
C172
Broadcasting now · callsign DEKMT · 4,225 ft
Flights observed
132
Distinct callsigns
1
Country
DE
Last broadcast
11d ago

Current position

3D205B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3D205B 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
DEKMT - 132 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DEKMT - Jul 26, 17:05 UTCJul 26, 18:05 UTC1h 0m
2026-07-26 DEKMT - Jul 26, 14:50 UTCJul 26, 15:30 UTC40m
2026-07-26 DEKMT - Jul 26, 10:35 UTCJul 26, 11:50 UTC1h 15m
2026-07-25 DEKMT - Jul 25, 13:00 UTCJul 25, 13:35 UTC35m
2026-07-25 DEKMT - Jul 25, 09:45 UTCJul 25, 10:45 UTC1h 0m
2026-07-25 DEKMT - Jul 25, 07:20 UTCJul 25, 08:45 UTC1h 25m
2026-07-21 DEKMT - Jul 21, 11:20 UTCJul 21, 12:20 UTC1h 0m
2026-07-20 DEKMT - Jul 20, 15:00 UTCJul 20, 16:35 UTC1h 35m
2026-07-20 DEKMT - Jul 20, 12:35 UTCJul 20, 14:00 UTC1h 25m
2026-07-20 DEKMT - Jul 20, 10:55 UTCJul 20, 11:10 UTC15m
2026-07-20 DEKMT - Jul 20, 09:30 UTCJul 20, 10:20 UTC50m
2026-07-20 DEKMT - Jul 20, 07:40 UTCJul 20, 08:20 UTC40m
2026-07-19 DEKMT - Jul 19, 11:35 UTCJul 19, 12:40 UTC1h 5m
2026-07-19 DEKMT - Jul 19, 09:50 UTCJul 19, 11:00 UTC1h 10m
2026-07-18 DEKMT - Jul 18, 09:50 UTCJul 18, 10:40 UTC50m
2026-07-18 DEKMT - Jul 18, 08:30 UTCJul 18, 09:20 UTC50m
2026-07-16 DEKMT - Jul 16, 15:25 UTCJul 16, 16:09 UTC45m
2026-07-16 DEKMT - Jul 16, 13:45 UTCJul 16, 14:55 UTC1h 10m
2026-07-16 DEKMT - Jul 16, 12:40 UTCJul 16, 12:49 UTC10m
2026-07-15 DEKMT - Jul 15, 15:25 UTCJul 15, 16:35 UTC1h 10m
2026-07-15 DEKMT - Jul 15, 12:25 UTCJul 15, 13:55 UTC1h 30m
2026-07-13 DEKMT - Jul 13, 14:35 UTCJul 13, 16:05 UTC1h 30m
2026-07-13 DEKMT - Jul 13, 12:50 UTCJul 13, 13:30 UTC40m
2026-07-11 DEKMT - Jul 11, 09:50 UTCJul 11, 10:55 UTC1h 5m
2026-07-10 DEKMT - Jul 10, 17:35 UTCJul 10, 17:55 UTC20m
2026-07-10 DEKMT - Jul 10, 07:55 UTCJul 10, 09:25 UTC1h 30m
2026-07-09 DEKMT - Jul 9, 13:35 UTCJul 9, 14:55 UTC1h 20m
2026-07-09 DEKMT - Jul 9, 11:45 UTCJul 9, 12:45 UTC1h 0m
2026-07-08 DEKMT - Jul 8, 17:00 UTCJul 8, 17:30 UTC30m
2026-07-08 DEKMT - Jul 8, 12:20 UTCJul 8, 13:35 UTC1h 15m
2026-07-08 DEKMT - Jul 8, 10:35 UTCJul 8, 11:30 UTC55m
2026-07-08 DEKMT - Jul 8, 09:15 UTCJul 8, 09:50 UTC35m
2026-07-08 DEKMT - Jul 8, 07:30 UTCJul 8, 08:35 UTC1h 5m
2026-07-07 DEKMT - Jul 7, 10:40 UTCJul 7, 12:05 UTC1h 25m
2026-07-07 DEKMT - Jul 7, 08:55 UTCJul 7, 09:45 UTC50m
2026-07-06 DEKMT - Jul 6, 13:35 UTCJul 6, 15:30 UTC1h 55m
2026-07-03 DEKMT - Jul 3, 13:25 UTCJul 3, 14:00 UTC35m
2026-07-03 DEKMT - Jul 3, 11:10 UTCJul 3, 12:05 UTC55m
2026-07-03 DEKMT - Jul 3, 07:45 UTCJul 3, 08:55 UTC1h 10m
2026-07-02 DEKMT - Jul 2, 16:50 UTCJul 2, 17:30 UTC40m
2026-07-02 DEKMT - Jul 2, 15:05 UTCJul 2, 15:45 UTC40m
2026-07-02 DEKMT - Jul 2, 14:15 UTCJul 2, 14:30 UTC15m
2026-07-02 DEKMT - Jul 2, 10:40 UTCJul 2, 10:50 UTC10m
2026-07-02 DEKMT - Jul 2, 09:45 UTCJul 2, 09:55 UTC10m
2026-07-01 DEKMT - Jul 1, 16:20 UTCJul 1, 17:30 UTC1h 10m
2026-07-01 DEKMT - Jul 1, 15:05 UTCJul 1, 15:15 UTC10m
2026-07-01 DEKMT - Jul 1, 13:50 UTCJul 1, 14:05 UTC15m
2026-07-01 DEKMT - Jul 1, 08:55 UTCJul 1, 11:05 UTC2h 10m
2026-06-30 DEKMT - Jun 30, 14:55 UTCJun 30, 15:10 UTC15m
2026-06-30 DEKMT - Jun 30, 11:35 UTCJun 30, 12:35 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-EKMT page for operator, model, and routing details .

Mode-S 3D205B frequently asked

What is Mode-S code 3D205B?
3D205B is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EKMT.
Where is Mode-S 3D205B registered?
Mode-S code 3D205B is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D205B broadcasting right now?
Yes. Mode-S 3D205B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D205B, octal 17220133, decimal 4,005,979.
What flights does 3D205B operate?
Mode-S 3D205B has broadcast 1 distinct callsign, including DEKMT.