Apparatus

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sensors Mode-S transponder

3CEF03

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-CRUX · EMBRAER EMB-505 Phenom 300

Hex
3CEF03
Octal
17167403
Decimal
3,993,347
Country
DE
Tail
D-CRUX
Type
E55P
Broadcasting now · callsign PVD453L · 39,000 ft
Flights observed
88
Distinct callsigns
20
Country
DE
Last broadcast
17m ago

Current position

3CEF03 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3CEF03 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 20 distinct

Callsign Airline Flights Last seen
PVD498M - 2 2026-04-15
PVD497V - 2 2026-04-14
PVD497S - 2 2026-04-16
PVD491L - 2 2026-05-13
PVD483L - 2 2026-05-19
PVD465Q - 2 2026-05-11
PVD462A - 2 2026-05-05
PVD454W - 2 2026-04-18
PVD454C - 2 2026-05-17
PVD453C - 2 2026-04-21
PVD447U - 2 2026-05-07
PVD439H - 2 2026-05-04
PVD438V - 2 2026-04-15
PVD438C - 2 2026-05-14
PVD435L - 2 2026-04-13
PVD433P - 2 2026-04-15
PVD424W - 2 2026-04-23
PVD417N - 2 2026-05-20
PVD416M - 2 2026-04-28
PVD497Q - 1 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 PVD453L - May 30, 08:10 UTCMay 30, 08:45 UTC35m
2026-05-29 PVD466N - May 29, 17:00 UTCMay 29, 17:15 UTC15m
2026-05-29 PVD418G NCE → BQH May 29, 14:00 UTCMay 29, 15:40 UTC1h 40m
2026-05-28 PVD484K - May 28, 10:15 UTCMay 28, 11:50 UTC1h 35m
2026-05-28 PVD428A - May 28, 07:30 UTCMay 28, 08:15 UTC45m
2026-05-26 PVD479A GWT → FRA May 26, 14:20 UTCMay 26, 15:45 UTC1h 25m
2026-05-26 PVD477H DTM → GWT May 26, 12:00 UTCMay 26, 12:35 UTC35m
2026-05-25 PVD473P ATH → DTM May 25, 06:45 UTCMay 25, 09:30 UTC2h 45m
2026-05-24 PVD452B - May 24, 08:50 UTCMay 24, 11:15 UTC2h 25m
2026-05-24 PVD456X - May 24, 07:40 UTCMay 24, 07:55 UTC15m
2026-05-23 PVD444V - May 23, 14:20 UTCMay 23, 16:20 UTC2h 0m
2026-05-21 PVD492Q - May 21, 11:00 UTCMay 21, 13:10 UTC2h 10m
2026-05-20 PVD417N - May 20, 16:35 UTCMay 20, 17:50 UTC1h 15m
2026-05-20 PVD417N - May 20, 04:25 UTCMay 20, 05:30 UTC1h 6m
2026-05-19 PVD483L BRS → PAD May 19, 17:10 UTCMay 19, 18:15 UTC1h 5m
2026-05-19 PVD483L PAD → BRS May 19, 05:10 UTCMay 19, 06:25 UTC1h 15m
2026-05-18 PVD472J LIN → PAD May 18, 12:25 UTCMay 18, 13:30 UTC1h 5m
2026-05-18 PVD463A - May 18, 08:05 UTCMay 18, 09:40 UTC1h 35m
2026-05-18 PVD459E DTM → LCY May 18, 05:05 UTCMay 18, 05:55 UTC50m
2026-05-17 PVD424Y - May 17, 17:05 UTCMay 17, 19:05 UTC2h 0m
2026-05-17 PVD439D - May 17, 12:50 UTCMay 17, 15:05 UTC2h 15m
2026-05-17 PVD477X - May 17, 10:05 UTCMay 17, 10:45 UTC40m
2026-05-17 PVD454C - May 17, 08:25 UTCMay 17, 09:00 UTC35m
2026-05-16 PVD454C - May 16, 10:11 UTCMay 16, 10:50 UTC40m
2026-05-16 PVD413B - May 16, 07:20 UTCMay 16, 08:05 UTC45m
2026-05-15 PVD443U NCE → MST May 15, 13:40 UTCMay 15, 15:00 UTC1h 19m
2026-05-15 PVD425G - May 15, 10:30 UTCMay 15, 11:05 UTC35m
2026-05-15 PVD443M - May 15, 07:45 UTCMay 15, 08:50 UTC1h 5m
2026-05-15 PVD474Z - May 15, 06:05 UTCMay 15, 06:50 UTC45m
2026-05-14 PVD438C NCE → GVA May 14, 14:25 UTCMay 14, 15:01 UTC35m
2026-05-14 PVD438C - May 14, 08:30 UTCMay 14, 09:05 UTC35m
2026-05-14 PVD488K - May 14, 05:45 UTCMay 14, 06:40 UTC55m
2026-05-13 PVD491L - May 13, 14:20 UTCMay 13, 15:10 UTC50m
2026-05-12 PVD491L CGN → GWT May 12, 08:10 UTCMay 12, 09:05 UTC55m
2026-05-11 PVD442H ZRH → CGN May 11, 12:50 UTCMay 11, 13:35 UTC45m
2026-05-11 PVD465Q - May 11, 09:35 UTCMay 11, 10:45 UTC1h 10m
2026-05-10 PVD465Q - May 10, 11:40 UTCMay 10, 12:19 UTC40m
2026-05-09 PVD425H - May 9, 09:15 UTCMay 9, 10:50 UTC1h 35m
2026-05-08 PVD416Y - May 8, 15:55 UTCMay 8, 16:10 UTC15m
2026-05-08 PVD463P - May 8, 13:55 UTCMay 8, 14:40 UTC45m
2026-05-08 PVD497K - May 8, 08:09 UTCMay 8, 09:30 UTC1h 20m
2026-05-07 PVD447U - May 7, 09:15 UTCMay 7, 10:35 UTC1h 20m
2026-05-06 PVD447U - May 6, 14:00 UTCMay 6, 15:15 UTC1h 15m
2026-05-06 PVD484D DUS → NCE May 6, 08:20 UTCMay 6, 09:45 UTC1h 25m
2026-05-06 PVD431K FMO → DUS May 6, 06:05 UTCMay 6, 06:30 UTC25m
2026-05-05 PVD451Y - May 5, 15:30 UTCMay 5, 16:00 UTC30m
2026-05-05 PVD462A - May 5, 13:10 UTCMay 5, 14:55 UTC1h 45m
2026-05-05 PVD462A - May 5, 05:30 UTCMay 5, 06:05 UTC35m
2026-05-04 PVD439H - May 4, 14:30 UTCMay 4, 15:05 UTC35m
2026-05-04 PVD439H - May 4, 06:20 UTCMay 4, 06:55 UTC35m

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

Mode-S 3CEF03 frequently asked

What is Mode-S code 3CEF03?
3CEF03 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-CRUX.
Where is Mode-S 3CEF03 registered?
Mode-S code 3CEF03 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3CEF03 broadcasting right now?
Yes. Mode-S 3CEF03 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3CEF03, octal 17167403, decimal 3,993,347.
What flights does 3CEF03 operate?
Mode-S 3CEF03 has broadcast 20 distinct callsigns, including PVD498M, PVD497V, PVD497S, PVD491L, PVD483L.