sensors Mode-S transponder

3CCE03

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3CCE03
Octal
17147003
Decimal
3,984,899
Country
DE
Tail
D-CFHZ
Type
E55P
No current signal · last broadcast 3h ago
Flights observed
5
Distinct callsigns
2
Country
DE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 3CCE03.

Country allocation

The ICAO 24-bit address 3CCE03 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 2 distinct

Callsign Airline Flights Last seen
DWW199 - 3 2026-04-30
DWW999 - 2 2026-04-19

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-30 DWW199 - Apr 30, 15:10 UTCApr 30, 15:45 UTC35m
2026-04-30 DWW199 - Apr 30, 11:30 UTCApr 30, 13:50 UTC2h 20m
2026-04-30 DWW199 FDH → CAT Apr 30, 07:25 UTCApr 30, 10:05 UTC2h 40m
2026-04-19 DWW999 MGL → FDH Apr 19, 15:15 UTCApr 19, 16:00 UTC45m
2026-04-19 DWW999 - Apr 19, 11:25 UTCApr 19, 12:25 UTC1h 0m

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

Mode-S 3CCE03 frequently asked

What is Mode-S code 3CCE03?
3CCE03 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-CFHZ.
Where is Mode-S 3CCE03 registered?
Mode-S code 3CCE03 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3CCE03 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3CCE03, octal 17147003, decimal 3,984,899.
What flights does 3CCE03 operate?
Mode-S 3CCE03 has broadcast 2 distinct callsigns, including DWW199, DWW999.