Apparatus

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sensors Mode-S transponder

3D4179

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-EXAV · CESSNA 172 Skyhawk

Hex
3D4179
Octal
17240571
Decimal
4,014,457
Country
DE
Tail
D-EXAV
Type
C172
No current signal · last broadcast 1d ago
Flights observed
78
Distinct callsigns
1
Country
DE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3D4179.

Country allocation

The ICAO 24-bit address 3D4179 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
DEXAV - 78 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 DEXAV - Jul 17, 11:25 UTCJul 17, 12:15 UTC50m
2026-07-17 DEXAV BWE → BWE Jul 17, 08:10 UTCJul 17, 09:10 UTC1h 0m
2026-07-16 DEXAV - Jul 16, 12:40 UTCJul 16, 13:40 UTC1h 0m
2026-07-16 DEXAV BWE → BWE Jul 16, 08:15 UTCJul 16, 09:15 UTC1h 0m
2026-07-15 DEXAV - Jul 15, 12:55 UTCJul 15, 13:50 UTC55m
2026-07-15 DEXAV - Jul 15, 07:40 UTCJul 15, 08:40 UTC1h 0m
2026-07-14 DEXAV BWE → BWE Jul 14, 12:30 UTCJul 14, 13:40 UTC1h 10m
2026-07-14 DEXAV - Jul 14, 09:25 UTCJul 14, 10:10 UTC45m
2026-07-13 DEXAV - Jul 13, 16:00 UTCJul 13, 16:55 UTC55m
2026-07-13 DEXAV BWE → BWE Jul 13, 13:25 UTCJul 13, 14:20 UTC55m
2026-07-13 DEXAV - Jul 13, 09:50 UTCJul 13, 10:20 UTC30m
2026-07-12 DEXAV - Jul 12, 11:15 UTCJul 12, 12:01 UTC45m
2026-07-10 DEXAV - Jul 10, 09:35 UTCJul 10, 10:35 UTC1h 0m
2026-07-08 DEXAV HAJ → HAJ Jul 8, 14:40 UTCJul 8, 15:45 UTC1h 5m
2026-07-08 DEXAV - Jul 8, 13:35 UTCJul 8, 13:50 UTC15m
2026-07-07 DEXAV HAJ → HAJ Jul 7, 13:10 UTCJul 7, 14:45 UTC1h 35m
2026-07-07 DEXAV HAJ → HAJ Jul 7, 09:50 UTCJul 7, 10:55 UTC1h 5m
2026-07-05 DEXAV HAJ → HAJ Jul 5, 18:05 UTCJul 5, 18:45 UTC40m
2026-07-04 DEXAV - Jul 4, 08:00 UTCJul 4, 08:30 UTC30m
2026-06-26 DEXAV - Jun 26, 13:40 UTCJun 26, 14:09 UTC30m
2026-06-23 DEXAV AGE → HAJ Jun 23, 16:09 UTCJun 23, 17:25 UTC1h 15m
2026-06-23 DEXAV - Jun 23, 07:35 UTCJun 23, 08:39 UTC1h 5m
2026-06-22 DEXAV - Jun 22, 15:45 UTCJun 22, 17:55 UTC2h 10m
2026-06-22 DEXAV - Jun 22, 09:04 UTCJun 22, 11:04 UTC2h 0m
2026-06-20 DEXAV - Jun 20, 10:25 UTCJun 20, 11:14 UTC50m
2026-06-17 DEXAV HAJ → HAJ Jun 17, 16:25 UTCJun 17, 18:20 UTC1h 55m
2026-06-14 DEXAV - Jun 14, 16:10 UTCJun 14, 17:10 UTC1h 0m
2026-06-10 DEXAV - Jun 10, 10:05 UTCJun 10, 10:20 UTC15m
2026-06-10 DEXAV - Jun 10, 09:00 UTCJun 10, 09:35 UTC35m
2026-06-08 DEXAV - Jun 8, 10:50 UTCJun 8, 12:20 UTC1h 30m
2026-06-08 DEXAV HAJ → HAJ Jun 8, 08:15 UTCJun 8, 08:50 UTC35m
2026-06-06 DEXAV - Jun 6, 08:45 UTCJun 6, 10:30 UTC1h 45m
2026-05-29 DEXAV - May 29, 11:50 UTCMay 29, 12:15 UTC25m
2026-05-29 DEXAV - May 29, 11:05 UTCMay 29, 11:15 UTC10m
2026-05-26 DEXAV - May 26, 09:35 UTCMay 26, 10:10 UTC35m
2026-05-25 DEXAV - May 25, 07:10 UTCMay 25, 07:55 UTC45m
2026-05-24 DEXAV - May 24, 13:50 UTCMay 24, 15:10 UTC1h 20m
2026-05-24 DEXAV - May 24, 09:20 UTCMay 24, 10:35 UTC1h 15m
2026-05-23 DEXAV HAJ → HAJ May 23, 09:45 UTCMay 23, 13:25 UTC3h 40m
2026-05-22 DEXAV - May 22, 17:00 UTCMay 22, 17:35 UTC35m
2026-05-22 DEXAV - May 22, 15:10 UTCMay 22, 15:30 UTC20m
2026-05-20 DEXAV - May 20, 16:40 UTCMay 20, 19:20 UTC2h 40m
2026-05-20 DEXAV - May 20, 07:20 UTCMay 20, 09:45 UTC2h 25m
2026-05-19 DEXAV HAJ → HAJ May 19, 19:25 UTCMay 19, 19:50 UTC25m
2026-05-19 DEXAV - May 19, 11:00 UTCMay 19, 12:10 UTC1h 10m
2026-05-19 DEXAV - May 19, 08:55 UTCMay 19, 09:50 UTC55m
2026-05-17 DEXAV - May 17, 08:35 UTCMay 17, 09:35 UTC1h 0m
2026-05-16 DEXAV HAJ → HAJ May 16, 19:30 UTCMay 16, 21:20 UTC1h 49m
2026-05-16 DEXAV - May 16, 09:51 UTCMay 16, 10:31 UTC40m
2026-05-10 DEXAV HAJ → HAJ May 10, 10:30 UTCMay 10, 14:04 UTC3h 35m

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

Mode-S 3D4179 frequently asked

What is Mode-S code 3D4179?
3D4179 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-EXAV.
Where is Mode-S 3D4179 registered?
Mode-S code 3D4179 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3D4179 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3D4179, octal 17240571, decimal 4,014,457.
What flights does 3D4179 operate?
Mode-S 3D4179 has broadcast 1 distinct callsign, including DEXAV.