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sensors Mode-S transponder

3D2341

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ELPH · CESSNA 172 Skyhawk

Hex
3D2341
Octal
17221501
Decimal
4,006,721
Country
DE
Tail
D-ELPH
Type
C172
No current signal · last broadcast 27d ago
Flights observed
97
Distinct callsigns
1
Country
DE
Last broadcast
27d ago

Last known position

Most recent position reported by Mode-S 3D2341.

Country allocation

The ICAO 24-bit address 3D2341 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
DELPH - 97 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-24 DELPH FLF → FLF Jun 24, 15:44 UTCJun 24, 17:20 UTC1h 35m
2026-06-24 DELPH FLF → FLF Jun 24, 07:34 UTCJun 24, 08:14 UTC40m
2026-06-23 DELPH - Jun 23, 15:40 UTCJun 23, 16:09 UTC30m
2026-06-22 DELPH - Jun 22, 13:29 UTCJun 22, 14:19 UTC50m
2026-06-21 DELPH - Jun 21, 15:25 UTCJun 21, 16:39 UTC1h 15m
2026-06-21 DELPH - Jun 21, 09:49 UTCJun 21, 10:44 UTC55m
2026-06-20 DELPH FLF → FLF Jun 20, 08:34 UTCJun 20, 09:59 UTC1h 25m
2026-06-17 DELPH - Jun 17, 08:10 UTCJun 17, 09:10 UTC1h 0m
2026-06-16 DELPH FLF → FLF Jun 16, 15:40 UTCJun 16, 16:35 UTC55m
2026-06-16 DELPH FLF → FLF Jun 16, 13:40 UTCJun 16, 14:15 UTC35m
2026-06-16 DELPH - Jun 16, 11:15 UTCJun 16, 11:35 UTC20m
2026-06-11 DELPH FLF → FLF Jun 11, 14:35 UTCJun 11, 15:10 UTC35m
2026-06-10 DELPH - Jun 10, 15:55 UTCJun 10, 16:25 UTC30m
2026-06-10 DELPH - Jun 10, 14:15 UTCJun 10, 15:00 UTC45m
2026-06-10 DELPH FLF → FLF Jun 10, 09:20 UTCJun 10, 10:15 UTC55m
2026-06-10 DELPH FLF → FLF Jun 10, 07:30 UTCJun 10, 08:25 UTC55m
2026-06-08 DELPH FLF → FLF Jun 8, 13:55 UTCJun 8, 15:04 UTC1h 10m
2026-06-01 DELPH - Jun 1, 16:00 UTCJun 1, 17:00 UTC1h 0m
2026-06-01 DELPH FLF → FLF Jun 1, 13:40 UTCJun 1, 14:40 UTC1h 0m
2026-05-31 DELPH - May 31, 14:20 UTCMay 31, 15:25 UTC1h 5m
2026-05-31 DELPH - May 31, 12:30 UTCMay 31, 13:25 UTC55m
2026-05-31 DELPH - May 31, 11:20 UTCMay 31, 11:35 UTC15m
2026-05-30 DELPH - May 30, 11:35 UTCMay 30, 12:20 UTC45m
2026-05-30 DELPH - May 30, 09:35 UTCMay 30, 10:35 UTC1h 0m
2026-05-29 DELPH - May 29, 15:50 UTCMay 29, 17:15 UTC1h 25m
2026-05-29 DELPH FLF → HGL May 29, 07:40 UTCMay 29, 08:45 UTC1h 5m
2026-05-27 DELPH - May 27, 16:35 UTCMay 27, 17:55 UTC1h 20m
2026-05-27 DELPH FLF → FLF May 27, 08:10 UTCMay 27, 08:40 UTC30m
2026-05-26 DELPH - May 26, 11:00 UTCMay 26, 12:05 UTC1h 5m
2026-05-26 DELPH FLF → FLF May 26, 08:39 UTCMay 26, 09:29 UTC50m
2026-05-25 DELPH FLF → FLF May 25, 13:50 UTCMay 25, 14:50 UTC1h 0m
2026-05-24 DELPH - May 24, 12:20 UTCMay 24, 13:45 UTC1h 25m
2026-05-24 DELPH - May 24, 10:15 UTCMay 24, 11:40 UTC1h 25m
2026-05-24 DELPH - May 24, 08:40 UTCMay 24, 09:30 UTC50m
2026-05-23 DELPH - May 23, 15:30 UTCMay 23, 15:50 UTC20m
2026-05-23 DELPH - May 23, 13:55 UTCMay 23, 14:45 UTC50m
2026-05-23 DELPH - May 23, 12:20 UTCMay 23, 13:00 UTC40m
2026-05-23 DELPH FLF → FLF May 23, 10:35 UTCMay 23, 11:15 UTC40m
2026-05-23 DELPH FLF → FLF May 23, 08:10 UTCMay 23, 09:20 UTC1h 10m
2026-05-22 DELPH FLF → FLF May 22, 16:15 UTCMay 22, 16:40 UTC25m
2026-05-22 DELPH - May 22, 15:25 UTCMay 22, 15:45 UTC20m
2026-05-22 DELPH FLF → FLF May 22, 08:35 UTCMay 22, 10:15 UTC1h 40m
2026-05-21 DELPH - May 21, 15:15 UTCMay 21, 15:45 UTC30m
2026-05-21 DELPH FLF → FLF May 21, 10:45 UTCMay 21, 11:20 UTC35m
2026-05-21 DELPH FLF → FLF May 21, 08:55 UTCMay 21, 09:45 UTC50m
2026-05-21 DELPH FLF → FLF May 21, 07:30 UTCMay 21, 08:15 UTC45m
2026-05-20 DELPH FLF → FLF May 20, 17:25 UTCMay 20, 18:00 UTC35m
2026-05-20 DELPH FLF → FLF May 20, 15:05 UTCMay 20, 16:45 UTC1h 40m
2026-05-19 DELPH FLF → FLF May 19, 12:40 UTCMay 19, 13:45 UTC1h 5m
2026-05-19 DELPH - May 19, 11:00 UTCMay 19, 11:40 UTC40m

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

Mode-S 3D2341 frequently asked

What is Mode-S code 3D2341?
3D2341 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ELPH.
Where is Mode-S 3D2341 registered?
Mode-S code 3D2341 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D2341 broadcasting right now?
No active broadcast right now. Last signal was 27d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D2341, octal 17221501, decimal 4,006,721.
What flights does 3D2341 operate?
Mode-S 3D2341 has broadcast 1 distinct callsign, including DELPH.