Apparatus

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sensors Mode-S transponder

3D3358

ICAO 24-bit transponder address · allocated to Germany

Hex
3D3358
Octal
17231530
Decimal
4,010,840
Country
DE
No current signal · last broadcast 5h ago
Flights observed
36
Distinct callsigns
1
Country
DE
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 3D3358.

Country allocation

The ICAO 24-bit address 3D3358 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
DERRS - 36 2026-07-23

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-07-23 DERRS - Jul 23, 14:25 UTCJul 23, 15:30 UTC1h 5m
2026-07-21 DERRS - Jul 21, 15:20 UTCJul 21, 16:10 UTC50m
2026-07-21 DERRS - Jul 21, 13:45 UTCJul 21, 14:35 UTC50m
2026-07-21 DERRS MHG → MHG Jul 21, 11:05 UTCJul 21, 11:55 UTC50m
2026-07-20 DERRS - Jul 20, 11:20 UTCJul 20, 12:30 UTC1h 10m
2026-07-20 DERRS - Jul 20, 08:35 UTCJul 20, 09:30 UTC55m
2026-07-18 DERRS - Jul 18, 08:45 UTCJul 18, 10:05 UTC1h 20m
2026-07-17 DERRS - Jul 17, 10:20 UTCJul 17, 11:04 UTC45m
2026-07-16 DERRS - Jul 16, 12:25 UTCJul 16, 13:25 UTC1h 0m
2026-07-16 DERRS - Jul 16, 06:10 UTCJul 16, 07:05 UTC55m
2026-07-14 DERRS MHG → MHG Jul 14, 15:40 UTCJul 14, 16:35 UTC55m
2026-07-14 DERRS - Jul 14, 11:35 UTCJul 14, 12:25 UTC50m
2026-07-14 DERRS MHG → MHG Jul 14, 08:45 UTCJul 14, 09:40 UTC55m
2026-07-13 DERRS - Jul 13, 15:05 UTCJul 13, 15:50 UTC45m
2026-07-13 DERRS - Jul 13, 12:25 UTCJul 13, 13:15 UTC50m
2026-07-12 DERRS - Jul 12, 08:25 UTCJul 12, 09:25 UTC1h 0m
2026-07-09 DERRS - Jul 9, 15:40 UTCJul 9, 16:25 UTC45m
2026-07-09 DERRS - Jul 9, 10:30 UTCJul 9, 11:20 UTC50m
2026-07-08 DERRS - Jul 8, 15:05 UTCJul 8, 16:05 UTC1h 0m
2026-07-08 DERRS - Jul 8, 13:00 UTCJul 8, 13:40 UTC40m
2026-07-08 DERRS - Jul 8, 10:50 UTCJul 8, 11:40 UTC50m
2026-07-07 DERRS MHG → MHG Jul 7, 14:40 UTCJul 7, 15:35 UTC55m
2026-07-07 DERRS - Jul 7, 12:10 UTCJul 7, 12:50 UTC40m
2026-07-06 DERRS MHG → MHG Jul 6, 08:20 UTCJul 6, 09:35 UTC1h 15m
2026-07-05 DERRS - Jul 5, 13:15 UTCJul 5, 13:55 UTC40m
2026-07-04 DERRS - Jul 4, 08:10 UTCJul 4, 09:00 UTC50m
2026-07-03 DERRS - Jul 3, 12:20 UTCJul 3, 13:20 UTC1h 0m
2026-07-02 DERRS - Jul 2, 10:45 UTCJul 2, 11:20 UTC35m
2026-07-02 DERRS - Jul 2, 08:10 UTCJul 2, 08:50 UTC40m
2026-06-22 DERRS - Jun 22, 08:00 UTCJun 22, 11:44 UTC3h 45m
2026-06-08 DERRS - Jun 8, 13:00 UTCJun 8, 13:25 UTC25m
2026-06-08 DERRS - Jun 8, 12:05 UTCJun 8, 12:20 UTC15m
2026-06-04 DERRS - Jun 4, 12:40 UTCJun 4, 13:10 UTC30m
2026-06-04 DERRS - Jun 4, 10:50 UTCJun 4, 12:10 UTC1h 20m
2026-06-04 DERRS - Jun 4, 09:45 UTCJun 4, 10:00 UTC15m
2026-06-04 DERRS - Jun 4, 08:00 UTCJun 4, 08:20 UTC20m

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.

Mode-S 3D3358 frequently asked

What is Mode-S code 3D3358?
3D3358 is an ICAO 24-bit transponder address. Allocated to Germany.
Where is Mode-S 3D3358 registered?
Mode-S code 3D3358 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D3358 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D3358, octal 17231530, decimal 4,010,840.
What flights does 3D3358 operate?
Mode-S 3D3358 has broadcast 1 distinct callsign, including DERRS.