Apparatus

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sensors Mode-S transponder

3CD3C6

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-CHMS · PILATUS PC-24

Hex
3CD3C6
Octal
17151706
Decimal
3,986,374
Country
DE
Tail
D-CHMS
Type
PC24
No current signal · last broadcast 21h ago
Flights observed
187
Distinct callsigns
20
Country
DE
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 3CD3C6.

Country allocation

The ICAO 24-bit address 3CD3C6 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
PTN35M - 5 2026-06-09
PTN33Q - 5 2026-04-17
PTN76G - 4 2026-04-17
PTN47A - 4 2026-04-13
PTN27V - 4 2026-05-28
PTN93F - 3 2026-07-07
PTN92T - 3 2026-05-27
PTN78R - 3 2026-06-20
PTN66E - 3 2026-05-22
PTN61H - 3 2026-06-18
PTN57C - 3 2026-05-24
PTN31D - 3 2026-07-04
PTN28Y - 3 2026-05-17
PTN15D - 3 2026-06-27
PTN96B - 2 2026-06-16
PTN95Z - 2 2026-07-02
PTN92L - 2 2026-06-01
PTN92K - 2 2026-06-15
PTN84L - 2 2026-06-22
PTN84B - 2 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 PTN58L - Jul 13, 12:05 UTCJul 13, 12:50 UTC45m
2026-07-13 PTN58L - Jul 13, 09:35 UTCJul 13, 10:35 UTC1h 0m
2026-07-12 PTN83E - Jul 12, 14:35 UTCJul 12, 17:25 UTC2h 50m
2026-07-12 PTN83E - Jul 12, 12:30 UTCJul 12, 13:25 UTC55m
2026-07-12 PTN76S - Jul 12, 08:01 UTCJul 12, 09:45 UTC1h 45m
2026-07-11 PTN21K - Jul 11, 13:45 UTCJul 11, 14:30 UTC45m
2026-07-11 PTN458T - Jul 11, 07:10 UTCJul 11, 08:10 UTC1h 0m
2026-07-10 PTN458T - Jul 10, 14:25 UTCJul 10, 15:45 UTC1h 20m
2026-07-10 PTN16V - Jul 10, 11:15 UTCJul 10, 12:20 UTC1h 5m
2026-07-10 PTN16V - Jul 10, 07:50 UTCJul 10, 09:25 UTC1h 35m
2026-07-09 PTN13Z BQH → CEQ Jul 9, 16:50 UTCJul 9, 18:40 UTC1h 50m
2026-07-09 PTN62M CEQ → BQH Jul 9, 13:20 UTCJul 9, 15:00 UTC1h 40m
2026-07-09 PTN77X - Jul 9, 08:20 UTCJul 9, 10:20 UTC2h 0m
2026-07-08 PTN77X - Jul 8, 16:40 UTCJul 8, 17:05 UTC25m
2026-07-08 PTN26W - Jul 8, 14:30 UTCJul 8, 15:25 UTC55m
2026-07-07 PTN29D - Jul 7, 19:00 UTCJul 7, 21:25 UTC2h 25m
2026-07-07 PTN29D - Jul 7, 13:55 UTCJul 7, 15:00 UTC1h 5m
2026-07-07 PTN93F - Jul 7, 09:35 UTCJul 7, 12:35 UTC3h 0m
2026-07-06 PTN93F OPO → RBM Jul 6, 14:50 UTCJul 6, 17:45 UTC2h 55m
2026-07-06 PTN93F FAO → OPO Jul 6, 12:25 UTCJul 6, 13:15 UTC50m
2026-07-05 PTN66G BCN → FAO Jul 5, 10:25 UTCJul 5, 12:05 UTC1h 40m
2026-07-04 PTN66G BOD → BCN Jul 4, 14:35 UTCJul 4, 15:35 UTC1h 0m
2026-07-04 PTN31D - Jul 4, 10:55 UTCJul 4, 12:30 UTC1h 35m
2026-07-04 PTN31D - Jul 4, 08:40 UTCJul 4, 09:25 UTC45m
2026-07-03 PTN31D - Jul 3, 13:20 UTCJul 3, 13:55 UTC35m
2026-07-03 PTN32U LIN → FSC Jul 3, 08:20 UTCJul 3, 09:00 UTC40m
2026-07-03 PTN32U NCE → LIN Jul 3, 06:35 UTCJul 3, 07:10 UTC35m
2026-07-02 PTN32L LBG → NCE Jul 2, 18:10 UTCJul 2, 19:30 UTC1h 20m
2026-07-02 PTN32L - Jul 2, 12:35 UTCJul 2, 12:55 UTC20m
2026-07-02 PTN37T - Jul 2, 07:55 UTCJul 2, 09:50 UTC1h 55m
2026-07-02 PTN95Z - Jul 2, 05:50 UTCJul 2, 06:00 UTC10m
2026-07-01 PTN95Z GVA → IBZ Jul 1, 17:55 UTCJul 1, 19:15 UTC1h 20m
2026-06-30 PTN12D - Jun 30, 10:35 UTCJun 30, 11:10 UTC35m
2026-06-30 PTN86Z - Jun 30, 08:20 UTCJun 30, 09:50 UTC1h 30m
2026-06-29 PTN28T - Jun 29, 11:25 UTCJun 29, 12:24 UTC1h 0m
2026-06-29 PTN28R - Jun 29, 09:10 UTCJun 29, 09:44 UTC35m
2026-06-29 PTN28R - Jun 29, 07:34 UTCJun 29, 08:19 UTC45m
2026-06-28 PTN42W - Jun 28, 16:00 UTCJun 28, 17:10 UTC1h 10m
2026-06-28 PTN72S - Jun 28, 11:00 UTCJun 28, 12:25 UTC1h 25m
2026-06-28 PTN72S BQH → DNR Jun 28, 07:25 UTCJun 28, 08:14 UTC50m
2026-06-27 PTN15D TRN → BQH Jun 27, 13:20 UTCJun 27, 14:49 UTC1h 30m
2026-06-27 PTN15D - Jun 27, 11:44 UTCJun 27, 12:09 UTC25m
2026-06-27 PTN15D - Jun 27, 09:50 UTCJun 27, 10:29 UTC40m
2026-06-26 PTN23G - Jun 26, 14:25 UTCJun 26, 16:00 UTC1h 35m
2026-06-26 PTN76Y - Jun 26, 09:50 UTCJun 26, 10:50 UTC1h 0m
2026-06-25 PTN54B - Jun 25, 16:20 UTCJun 25, 18:34 UTC2h 15m
2026-06-25 PTN77Y - Jun 25, 12:50 UTCJun 25, 14:09 UTC1h 20m
2026-06-25 PTN77Y - Jun 25, 10:30 UTCJun 25, 11:39 UTC1h 10m
2026-06-25 PTN34L - Jun 25, 08:30 UTCJun 25, 09:25 UTC55m
2026-06-24 PTN35A - Jun 24, 17:14 UTCJun 24, 19:04 UTC1h 50m

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

Mode-S 3CD3C6 frequently asked

What is Mode-S code 3CD3C6?
3CD3C6 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-CHMS.
Where is Mode-S 3CD3C6 registered?
Mode-S code 3CD3C6 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3CD3C6 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3CD3C6, octal 17151706, decimal 3,986,374.
What flights does 3CD3C6 operate?
Mode-S 3CD3C6 has broadcast 20 distinct callsigns, including PTN35M, PTN33Q, PTN76G, PTN47A, PTN27V.