Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3D1263

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EFFF · ROBIN DR-400

Hex
3D1263
Octal
17211143
Decimal
4,002,403
Country
DE
Tail
D-EFFF
Type
DR40
No current signal · last broadcast 6d ago
Flights observed
68
Distinct callsigns
1
Country
DE
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 3D1263.

Country allocation

The ICAO 24-bit address 3D1263 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
DEFFF - 68 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DEFFF - Jul 26, 14:05 UTCJul 26, 14:40 UTC35m
2026-07-26 DEFFF - Jul 26, 11:35 UTCJul 26, 12:05 UTC30m
2026-07-12 DEFFF - Jul 12, 14:10 UTCJul 12, 14:50 UTC40m
2026-07-12 DEFFF - Jul 12, 13:20 UTCJul 12, 13:30 UTC10m
2026-07-11 DEFFF - Jul 11, 17:50 UTCJul 11, 18:35 UTC45m
2026-07-11 DEFFF - Jul 11, 15:20 UTCJul 11, 15:45 UTC25m
2026-07-11 DEFFF - Jul 11, 12:40 UTCJul 11, 13:15 UTC35m
2026-07-05 DEFFF - Jul 5, 13:55 UTCJul 5, 14:15 UTC20m
2026-07-05 DEFFF - Jul 5, 11:20 UTCJul 5, 12:30 UTC1h 10m
2026-07-05 DEFFF - Jul 5, 10:20 UTCJul 5, 10:45 UTC25m
2026-07-05 DEFFF - Jul 5, 08:10 UTCJul 5, 09:05 UTC55m
2026-07-04 DEFFF - Jul 4, 13:50 UTCJul 4, 14:35 UTC45m
2026-06-29 DEFFF - Jun 29, 18:19 UTCJun 29, 19:00 UTC40m
2026-06-28 DEFFF - Jun 28, 08:29 UTCJun 28, 09:20 UTC50m
2026-06-27 DEFFF - Jun 27, 08:25 UTCJun 27, 09:19 UTC55m
2026-06-24 DEFFF - Jun 24, 17:29 UTCJun 24, 17:55 UTC25m
2026-06-20 DEFFF - Jun 20, 18:14 UTCJun 20, 18:54 UTC40m
2026-06-20 DEFFF - Jun 20, 13:44 UTCJun 20, 16:24 UTC2h 40m
2026-06-20 DEFFF - Jun 20, 05:19 UTCJun 20, 07:49 UTC2h 30m
2026-06-16 DEFFF - Jun 16, 17:49 UTCJun 16, 18:15 UTC25m
2026-06-16 DEFFF - Jun 16, 16:10 UTCJun 16, 16:50 UTC40m
2026-06-06 DEFFF - Jun 6, 15:25 UTCJun 6, 15:39 UTC15m
2026-06-02 DEFFF - Jun 2, 14:00 UTCJun 2, 14:25 UTC25m
2026-06-01 DEFFF - Jun 1, 16:40 UTCJun 1, 17:10 UTC30m
2026-05-31 DEFFF - May 31, 09:20 UTCMay 31, 13:00 UTC3h 40m
2026-05-30 DEFFF - May 30, 10:10 UTCMay 30, 16:45 UTC6h 35m
2026-05-30 DEFFF - May 30, 07:30 UTCMay 30, 07:40 UTC10m
2026-05-29 DEFFF - May 29, 18:05 UTCMay 29, 18:35 UTC30m
2026-05-29 DEFFF - May 29, 15:25 UTCMay 29, 15:55 UTC30m
2026-05-28 DEFFF - May 28, 15:25 UTCMay 28, 16:30 UTC1h 5m
2026-05-24 DEFFF - May 24, 17:05 UTCMay 24, 17:25 UTC20m
2026-05-24 DEFFF - May 24, 14:35 UTCMay 24, 16:35 UTC2h 0m
2026-05-24 DEFFF - May 24, 13:30 UTCMay 24, 14:00 UTC30m
2026-05-24 DEFFF - May 24, 12:00 UTCMay 24, 12:35 UTC35m
2026-05-23 DEFFF - May 23, 13:55 UTCMay 23, 14:50 UTC55m
2026-05-23 DEFFF - May 23, 12:15 UTCMay 23, 13:00 UTC45m
2026-05-17 DEFFF - May 17, 16:40 UTCMay 17, 17:20 UTC40m
2026-05-17 DEFFF - May 17, 15:20 UTCMay 17, 15:31 UTC10m
2026-05-17 DEFFF - May 17, 13:40 UTCMay 17, 14:05 UTC25m
2026-05-17 DEFFF - May 17, 11:05 UTCMay 17, 12:15 UTC1h 10m
2026-05-17 DEFFF - May 17, 09:15 UTCMay 17, 10:00 UTC45m
2026-05-16 DEFFF - May 16, 08:20 UTCMay 16, 09:06 UTC45m
2026-05-15 DEFFF - May 15, 13:50 UTCMay 15, 15:35 UTC1h 44m
2026-05-15 DEFFF - May 15, 08:10 UTCMay 15, 08:25 UTC15m
2026-05-14 DEFFF - May 14, 15:35 UTCMay 14, 17:10 UTC1h 35m
2026-05-14 DEFFF - May 14, 12:50 UTCMay 14, 14:55 UTC2h 5m
2026-05-14 DEFFF - May 14, 10:40 UTCMay 14, 10:50 UTC10m
2026-05-14 DEFFF - May 14, 07:55 UTCMay 14, 09:55 UTC2h 0m
2026-05-13 DEFFF - May 13, 16:25 UTCMay 13, 17:15 UTC50m
2026-05-13 DEFFF - May 13, 15:10 UTCMay 13, 15:55 UTC45m

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

Mode-S 3D1263 frequently asked

What is Mode-S code 3D1263?
3D1263 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EFFF.
Where is Mode-S 3D1263 registered?
Mode-S code 3D1263 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D1263 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D1263, octal 17211143, decimal 4,002,403.
What flights does 3D1263 operate?
Mode-S 3D1263 has broadcast 1 distinct callsign, including DEFFF.