sensors Mode-S transponder

3D1BAF

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EIST · PIPER PA-28-140/150/160/180

Hex
3D1BAF
Octal
17215657
Decimal
4,004,783
Country
DE
Tail
D-EIST
Type
P28A
No current signal · last broadcast 7h ago
Flights observed
95
Distinct callsigns
1
Country
DE
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 3D1BAF.

Country allocation

The ICAO 24-bit address 3D1BAF 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
DEIST - 95 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 DEIST - Jul 17, 18:50 UTCJul 17, 19:35 UTC45m
2026-07-16 DEIST - Jul 16, 16:30 UTCJul 16, 17:14 UTC45m
2026-07-16 DEIST - Jul 16, 14:25 UTCJul 16, 14:55 UTC30m
2026-07-15 DEIST - Jul 15, 18:20 UTCJul 15, 19:15 UTC55m
2026-07-15 DEIST - Jul 15, 16:30 UTCJul 15, 17:00 UTC30m
2026-07-15 DEIST - Jul 15, 10:30 UTCJul 15, 10:45 UTC15m
2026-07-12 DEIST - Jul 12, 14:40 UTCJul 12, 15:10 UTC30m
2026-07-12 DEIST - Jul 12, 13:25 UTCJul 12, 14:01 UTC35m
2026-07-12 DEIST - Jul 12, 10:25 UTCJul 12, 11:25 UTC1h 0m
2026-07-12 DEIST - Jul 12, 07:15 UTCJul 12, 08:15 UTC1h 0m
2026-07-11 DEIST - Jul 11, 16:35 UTCJul 11, 17:15 UTC40m
2026-07-11 DEIST - Jul 11, 08:45 UTCJul 11, 09:35 UTC50m
2026-07-10 DEIST - Jul 10, 13:30 UTCJul 10, 14:25 UTC55m
2026-07-10 DEIST - Jul 10, 11:30 UTCJul 10, 12:25 UTC55m
2026-07-09 DEIST - Jul 9, 15:20 UTCJul 9, 15:45 UTC25m
2026-07-07 DEIST - Jul 7, 15:40 UTCJul 7, 15:55 UTC15m
2026-07-07 DEIST - Jul 7, 14:10 UTCJul 7, 14:35 UTC25m
2026-07-07 DEIST - Jul 7, 12:25 UTCJul 7, 12:40 UTC15m
2026-07-07 DEIST - Jul 7, 09:20 UTCJul 7, 10:10 UTC50m
2026-06-26 DEIST - Jun 26, 10:30 UTCJun 26, 12:14 UTC1h 45m
2026-06-26 DEIST - Jun 26, 08:10 UTCJun 26, 09:45 UTC1h 35m
2026-06-25 DEIST - Jun 25, 07:34 UTCJun 25, 09:34 UTC2h 0m
2026-06-24 DEIST - Jun 24, 06:10 UTCJun 24, 08:49 UTC2h 40m
2026-06-16 DEIST - Jun 16, 17:05 UTCJun 16, 17:55 UTC50m
2026-06-08 DEIST - Jun 8, 11:55 UTCJun 8, 12:25 UTC30m
2026-06-08 DEIST - Jun 8, 11:00 UTCJun 8, 11:30 UTC30m
2026-06-07 DEIST - Jun 7, 17:50 UTCJun 7, 18:10 UTC20m
2026-06-06 DEIST - Jun 6, 12:04 UTCJun 6, 12:24 UTC20m
2026-06-06 DEIST - Jun 6, 10:50 UTCJun 6, 11:25 UTC35m
2026-06-06 DEIST - Jun 6, 09:45 UTCJun 6, 10:14 UTC30m
2026-06-04 DEIST WVN → WVN Jun 4, 14:20 UTCJun 4, 14:25 UTC5m
2026-06-01 DEIST - Jun 1, 15:05 UTCJun 1, 15:45 UTC40m
2026-05-31 DEIST - May 31, 13:25 UTCMay 31, 14:10 UTC45m
2026-05-30 DEIST - May 30, 15:50 UTCMay 30, 16:40 UTC50m
2026-05-30 DEIST - May 30, 07:00 UTCMay 30, 07:35 UTC35m
2026-05-29 DEIST - May 29, 08:05 UTCMay 29, 08:50 UTC45m
2026-05-28 DEIST - May 28, 16:10 UTCMay 28, 16:40 UTC30m
2026-05-28 DEIST - May 28, 15:20 UTCMay 28, 15:55 UTC35m
2026-05-27 DEIST - May 27, 17:45 UTCMay 27, 18:05 UTC20m
2026-05-27 DEIST - May 27, 15:55 UTCMay 27, 16:15 UTC20m
2026-05-26 DEIST - May 26, 18:05 UTCMay 26, 18:45 UTC40m
2026-05-26 DEIST - May 26, 15:14 UTCMay 26, 15:29 UTC15m
2026-05-26 DEIST - May 26, 09:25 UTCMay 26, 09:55 UTC30m
2026-05-26 DEIST - May 26, 08:34 UTCMay 26, 09:09 UTC35m
2026-05-25 DEIST - May 25, 14:50 UTCMay 25, 15:25 UTC35m
2026-05-25 DEIST - May 25, 12:30 UTCMay 25, 13:10 UTC40m
2026-05-25 DEIST - May 25, 10:15 UTCMay 25, 11:00 UTC45m
2026-05-24 DEIST - May 24, 17:50 UTCMay 24, 18:45 UTC55m
2026-05-24 DEIST - May 24, 15:05 UTCMay 24, 16:20 UTC1h 15m
2026-05-24 DEIST - May 24, 08:40 UTCMay 24, 10:00 UTC1h 20m

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

Mode-S 3D1BAF frequently asked

What is Mode-S code 3D1BAF?
3D1BAF is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EIST.
Where is Mode-S 3D1BAF registered?
Mode-S code 3D1BAF is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D1BAF broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D1BAF, octal 17215657, decimal 4,004,783.
What flights does 3D1BAF operate?
Mode-S 3D1BAF has broadcast 1 distinct callsign, including DEIST.