Apparatus

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sensors Mode-S transponder

3C6517

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIHW · AIRBUS A-340-600

Hex
3C6517
Octal
17062427
Decimal
3,958,039
Country
DE
Tail
D-AIHW
Type
A346
No current signal · last broadcast 21h ago
Flights observed
130
Distinct callsigns
13
Country
DE
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 3C6517.

Country allocation

The ICAO 24-bit address 3C6517 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 13 distinct

Callsign Airline Flights Last seen
DLH416 Lufthansa 26 2026-07-24
DLH417 Lufthansa 25 2026-07-24
DLH401 Lufthansa 19 2026-07-26
DLH400 Lufthansa 18 2026-07-26
DLH3W - 14 2026-07-16
DLH419 - 13 2026-07-16
DLH403 Lufthansa 5 2026-05-09
DLH402 Lufthansa 5 2026-05-09
DLH9911 Lufthansa 1 2026-04-24
DLH761 Lufthansa 1 2026-06-11
DLH760 Lufthansa 1 2026-06-11
DLH421 Lufthansa 1 2026-06-15
DLH420 Lufthansa 1 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH401 JFK → FRA Jul 26, 20:40 UTCJul 26, 21:45 UTC1h 5m
2026-07-26 DLH400 FRA → JFK Jul 26, 09:25 UTCJul 26, 17:30 UTC8h 5m
2026-07-25 DLH401 JFK → FRA Jul 25, 20:20 UTCJul 26, 03:15 UTC6h 55m
2026-07-25 DLH400 FRA → JFK Jul 25, 09:25 UTCJul 25, 17:20 UTC7h 55m
2026-07-24 DLH417 IAD → FRA Jul 24, 19:40 UTCJul 25, 03:05 UTC7h 25m
2026-07-24 DLH416 FRA → IAD Jul 24, 09:20 UTCJul 24, 17:45 UTC8h 25m
2026-07-23 DLH417 IAD → FRA Jul 23, 19:50 UTCJul 24, 03:05 UTC7h 15m
2026-07-23 DLH416 FRA → IAD Jul 23, 09:00 UTCJul 23, 17:00 UTC8h 0m
2026-07-22 DLH417 IAD → FRA Jul 22, 20:00 UTCJul 23, 03:25 UTC7h 25m
2026-07-22 DLH416 FRA → IAD Jul 22, 11:10 UTCJul 22, 17:40 UTC6h 30m
2026-07-16 DLH419 IAD → FRA Jul 16, 22:49 UTCJul 17, 06:20 UTC7h 30m
2026-07-16 DLH3W FRA → IAD Jul 16, 12:09 UTCJul 16, 20:25 UTC8h 15m
2026-07-15 DLH401 JFK → FRA Jul 15, 20:10 UTCJul 16, 03:20 UTC7h 10m
2026-07-15 DLH400 FRA → JFK Jul 15, 09:55 UTCJul 15, 17:45 UTC7h 50m
2026-07-13 DLH419 IAD → FRA Jul 13, 22:25 UTCJul 14, 05:55 UTC7h 30m
2026-07-13 DLH3W - Jul 13, 11:45 UTCJul 13, 20:00 UTC8h 15m
2026-07-12 DLH417 IAD → FRA Jul 12, 20:15 UTCJul 13, 03:55 UTC7h 40m
2026-07-12 DLH416 FRA → IAD Jul 12, 10:15 UTCJul 12, 18:25 UTC8h 10m
2026-07-11 DLH401 JFK → FRA Jul 11, 21:10 UTCJul 12, 04:01 UTC6h 50m
2026-07-11 DLH400 FRA → JFK Jul 11, 09:15 UTCJul 11, 17:15 UTC8h 0m
2026-07-10 DLH401 JFK → FRA Jul 10, 20:50 UTCJul 11, 03:40 UTC6h 50m
2026-07-10 DLH400 FRA → JFK Jul 10, 09:35 UTCJul 10, 17:50 UTC8h 15m
2026-07-09 DLH401 JFK → FRA Jul 9, 20:20 UTCJul 10, 03:15 UTC6h 55m
2026-07-09 DLH400 FRA → JFK Jul 9, 09:15 UTCJul 9, 17:20 UTC8h 5m
2026-07-08 DLH401 - Jul 8, 20:10 UTCJul 9, 03:15 UTC7h 5m
2026-07-08 DLH400 FRA → JFK Jul 8, 09:25 UTCJul 8, 17:20 UTC7h 55m
2026-07-07 DLH419 IAD → FRA Jul 7, 22:35 UTCJul 8, 06:05 UTC7h 30m
2026-07-07 DLH3W FRA → IAD Jul 7, 11:55 UTCJul 7, 20:15 UTC8h 20m
2026-07-06 DLH417 - Jul 6, 23:55 UTCJul 7, 07:05 UTC7h 10m
2026-07-06 DLH416 FRA → IAD Jul 6, 09:35 UTCJul 6, 18:05 UTC8h 30m
2026-07-03 DLH417 IAD → FRA Jul 3, 19:40 UTCJul 4, 03:05 UTC7h 25m
2026-07-03 DLH416 - Jul 3, 09:00 UTCJul 3, 17:45 UTC8h 45m
2026-07-02 DLH417 IAD → FRA Jul 2, 20:25 UTCJul 3, 03:20 UTC6h 55m
2026-07-02 DLH416 FRA → IAD Jul 2, 09:55 UTCJul 2, 18:15 UTC8h 20m
2026-06-30 DLH417 IAD → FRA Jun 30, 19:45 UTCJul 1, 03:05 UTC7h 20m
2026-06-30 DLH416 FRA → IAD Jun 30, 09:20 UTCJun 30, 17:20 UTC8h 0m
2026-06-28 DLH417 IAD → FRA Jun 28, 19:55 UTCJun 29, 03:10 UTC7h 15m
2026-06-28 DLH416 FRA → IAD Jun 28, 09:30 UTCJun 28, 17:44 UTC8h 15m
2026-06-27 DLH401 JFK → FRA Jun 27, 20:49 UTCJun 28, 03:45 UTC6h 55m
2026-06-27 DLH400 FRA → JFK Jun 27, 09:55 UTCJun 27, 17:34 UTC7h 40m
2026-06-26 DLH417 IAD → FRA Jun 26, 20:20 UTCJun 27, 03:30 UTC7h 10m
2026-06-26 DLH416 FRA → IAD Jun 26, 09:35 UTCJun 26, 17:50 UTC8h 15m
2026-06-24 DLH417 IAD → FRA Jun 24, 19:44 UTCJun 25, 03:15 UTC7h 30m
2026-06-24 DLH416 FRA → IAD Jun 24, 09:00 UTCJun 24, 17:34 UTC8h 35m
2026-06-23 DLH417 - Jun 23, 21:39 UTCJun 24, 04:44 UTC7h 5m
2026-06-23 DLH416 - Jun 23, 09:59 UTCJun 23, 19:00 UTC9h 0m
2026-06-20 DLH417 IAD → FRA Jun 20, 21:30 UTCJun 21, 04:34 UTC7h 5m
2026-06-20 DLH416 - Jun 20, 19:29 UTCJun 20, 19:44 UTC15m
2026-06-20 DLH416 FRA → IAD Jun 20, 10:49 UTCJun 20, 19:19 UTC8h 30m
2026-06-18 DLH417 IAD → FRA Jun 18, 19:40 UTCJun 19, 03:15 UTC7h 34m

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

Mode-S 3C6517 frequently asked

What is Mode-S code 3C6517?
3C6517 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIHW.
Where is Mode-S 3C6517 registered?
Mode-S code 3C6517 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6517 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 3C6517, octal 17062427, decimal 3,958,039.
What flights does 3C6517 operate?
Mode-S 3C6517 has broadcast 13 distinct callsigns, including DLH416, DLH417, DLH401, DLH400, DLH3W.