Apparatus

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sensors Mode-S transponder

3D1B19

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EIMZ · CESSNA 172 Skyhawk

Hex
3D1B19
Octal
17215431
Decimal
4,004,633
Country
DE
Tail
D-EIMZ
Type
C172
No current signal · last broadcast 1h ago
Flights observed
61
Distinct callsigns
1
Country
DE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 3D1B19.

Country allocation

The ICAO 24-bit address 3D1B19 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
DEIMZ - 61 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 DEIMZ ESS → ESS May 30, 09:00 UTCMay 30, 10:15 UTC1h 15m
2026-05-28 DEIMZ ESS → ESS May 28, 16:15 UTCMay 28, 17:50 UTC1h 35m
2026-05-28 DEIMZ - May 28, 13:40 UTCMay 28, 14:05 UTC25m
2026-05-28 DEIMZ - May 28, 11:10 UTCMay 28, 12:35 UTC1h 25m
2026-05-28 DEIMZ NRN → NRN May 28, 09:10 UTCMay 28, 10:25 UTC1h 15m
2026-05-28 DEIMZ - May 28, 07:40 UTCMay 28, 08:10 UTC30m
2026-05-27 DEIMZ ESS → ESS May 27, 07:45 UTCMay 27, 08:40 UTC55m
2026-05-26 DEIMZ - May 26, 14:55 UTCMay 26, 15:49 UTC55m
2026-05-26 DEIMZ - May 26, 08:50 UTCMay 26, 09:45 UTC55m
2026-05-25 DEIMZ - May 25, 16:45 UTCMay 25, 17:00 UTC15m
2026-05-25 DEIMZ - May 25, 15:05 UTCMay 25, 15:50 UTC45m
2026-05-25 DEIMZ - May 25, 11:35 UTCMay 25, 12:55 UTC1h 20m
2026-05-25 DEIMZ ESS → ESS May 25, 09:05 UTCMay 25, 10:00 UTC55m
2026-05-24 DEIMZ ESS → ESS May 24, 11:05 UTCMay 24, 14:10 UTC3h 5m
2026-05-23 DEIMZ - May 23, 16:10 UTCMay 23, 16:25 UTC15m
2026-05-23 DEIMZ - May 23, 15:15 UTCMay 23, 15:30 UTC15m
2026-05-23 DEIMZ - May 23, 08:20 UTCMay 23, 11:15 UTC2h 55m
2026-05-21 DEIMZ - May 21, 15:50 UTCMay 21, 17:20 UTC1h 30m
2026-05-20 DEIMZ - May 20, 14:20 UTCMay 20, 15:45 UTC1h 25m
2026-05-19 DEIMZ - May 19, 10:40 UTCMay 19, 11:30 UTC50m
2026-05-19 DEIMZ - May 19, 08:35 UTCMay 19, 09:15 UTC40m
2026-05-18 DEIMZ ESS → ESS May 18, 15:20 UTCMay 18, 15:30 UTC10m
2026-05-13 DEIMZ ESS → ESS May 13, 14:51 UTCMay 13, 16:20 UTC1h 30m
2026-05-10 DEIMZ - May 10, 13:49 UTCMay 10, 14:49 UTC1h 0m
2026-05-09 DEIMZ - May 9, 14:55 UTCMay 9, 15:10 UTC15m
2026-05-09 DEIMZ - May 9, 12:50 UTCMay 9, 14:15 UTC1h 25m
2026-05-09 DEIMZ ESS → ESS May 9, 10:30 UTCMay 9, 11:25 UTC55m
2026-05-08 DEIMZ - May 8, 10:35 UTCMay 8, 10:59 UTC25m
2026-05-08 DEIMZ - May 8, 08:44 UTCMay 8, 09:34 UTC50m
2026-05-02 DEIMZ - May 2, 11:00 UTCMay 2, 11:25 UTC25m
2026-05-02 DEIMZ - May 2, 09:55 UTCMay 2, 10:15 UTC20m
2026-05-02 DEIMZ - May 2, 08:30 UTCMay 2, 09:00 UTC30m
2026-04-29 DEIMZ ESS → ESS Apr 29, 17:15 UTCApr 29, 17:55 UTC40m
2026-04-29 DEIMZ ESS → ESS Apr 29, 14:50 UTCApr 29, 15:50 UTC1h 0m
2026-04-29 DEIMZ - Apr 29, 13:35 UTCApr 29, 14:10 UTC35m
2026-04-29 DEIMZ - Apr 29, 11:00 UTCApr 29, 12:10 UTC1h 10m
2026-04-29 DEIMZ - Apr 29, 09:00 UTCApr 29, 10:20 UTC1h 20m
2026-04-27 DEIMZ ESS → ESS Apr 27, 09:50 UTCApr 27, 10:45 UTC55m
2026-04-27 DEIMZ ESS → ESS Apr 27, 07:20 UTCApr 27, 08:30 UTC1h 10m
2026-04-26 DEIMZ - Apr 26, 14:15 UTCApr 26, 14:35 UTC20m
2026-04-26 DEIMZ - Apr 26, 12:45 UTCApr 26, 13:30 UTC45m
2026-04-26 DEIMZ - Apr 26, 11:10 UTCApr 26, 11:55 UTC45m
2026-04-26 DEIMZ - Apr 26, 08:55 UTCApr 26, 09:45 UTC50m
2026-04-25 DEIMZ - Apr 25, 13:30 UTCApr 25, 13:55 UTC25m
2026-04-25 DEIMZ - Apr 25, 12:30 UTCApr 25, 12:45 UTC15m
2026-04-25 DEIMZ - Apr 25, 11:05 UTCApr 25, 11:35 UTC30m
2026-04-24 DEIMZ - Apr 24, 18:05 UTCApr 24, 18:40 UTC35m
2026-04-23 DEIMZ - Apr 23, 10:30 UTCApr 23, 10:50 UTC20m
2026-04-23 DEIMZ - Apr 23, 08:45 UTCApr 23, 09:15 UTC30m
2026-04-22 DEIMZ - Apr 22, 15:20 UTCApr 22, 16:45 UTC1h 25m

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

Mode-S 3D1B19 frequently asked

What is Mode-S code 3D1B19?
3D1B19 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EIMZ.
Where is Mode-S 3D1B19 registered?
Mode-S code 3D1B19 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D1B19 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D1B19, octal 17215431, decimal 4,004,633.
What flights does 3D1B19 operate?
Mode-S 3D1B19 has broadcast 1 distinct callsign, including DEIMZ.