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sensors Mode-S transponder

3C6709

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AIXI · AIRBUS A-350-900

Hex
3C6709
Octal
17063411
Decimal
3,958,537
Country
DE
Tail
D-AIXI
Type
A359
No current signal · last broadcast 4h ago
Flights observed
163
Distinct callsigns
20
Country
DE
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 3C6709.

Country allocation

The ICAO 24-bit address 3C6709 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
DLH772 - 14 2026-07-04
DLH718 - 13 2026-07-13
DLH773 - 12 2026-07-05
DLH722 - 11 2026-07-14
DLH459 - 11 2026-07-03
DLH458 - 11 2026-07-02
DLH723 - 10 2026-07-01
DLH719 - 10 2026-07-13
DLH769 - 7 2026-06-26
DLH768 - 7 2026-06-25
DLH743 - 6 2026-07-08
DLH742 - 6 2026-07-07
DLH4W - 4 2026-06-23
DLH489 Lufthansa 4 2026-05-30
DLH488 Lufthansa 4 2026-05-29
DLH428 - 4 2026-06-23
DLH579 - 3 2026-07-04
DLH578 - 3 2026-07-03
DLH505 - 3 2026-07-11
DLH504 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH722 - Jul 14, 02:50 UTCJul 14, 03:10 UTC20m
2026-07-13 DLH722 - Jul 13, 18:00 UTCJul 13, 21:20 UTC3h 20m
2026-07-13 DLH719 - Jul 13, 08:01 UTCJul 13, 15:05 UTC7h 5m
2026-07-13 DLH719 - Jul 13, 02:55 UTCJul 13, 03:15 UTC20m
2026-07-13 DLH718 - Jul 13, 00:15 UTCJul 13, 00:35 UTC20m
2026-07-12 DLH718 - Jul 12, 14:25 UTCJul 12, 23:30 UTC9h 5m
2026-07-12 DLH477 - Jul 12, 02:10 UTCJul 12, 11:10 UTC9h 0m
2026-07-11 DLH476 - Jul 11, 14:20 UTCJul 12, 00:10 UTC9h 50m
2026-07-11 DLH505 - Jul 11, 00:15 UTCJul 11, 10:55 UTC10h 40m
2026-07-10 DLH504 - Jul 10, 10:10 UTCJul 10, 22:00 UTC11h 50m
2026-07-08 DLH743 - Jul 8, 01:10 UTCJul 8, 14:35 UTC13h 25m
2026-07-07 DLH742 - Jul 7, 10:50 UTCJul 7, 22:00 UTC11h 10m
2026-07-06 DLH765 - Jul 6, 20:50 UTCJul 7, 05:50 UTC9h 0m
2026-07-06 DLH764 - Jul 6, 18:25 UTCJul 6, 18:40 UTC15m
2026-07-06 DLH764 - Jul 6, 10:35 UTCJul 6, 17:10 UTC6h 35m
2026-07-05 DLH773 - Jul 5, 16:15 UTCJul 5, 17:25 UTC1h 10m
2026-07-04 DLH772 - Jul 4, 20:35 UTCJul 5, 06:30 UTC9h 55m
2026-07-04 DLH579 - Jul 4, 07:20 UTCJul 4, 17:20 UTC10h 0m
2026-07-03 DLH578 - Jul 3, 18:40 UTCJul 4, 04:40 UTC10h 0m
2026-07-03 DLH459 - Jul 3, 04:25 UTCJul 3, 14:35 UTC10h 10m
2026-07-02 DLH458 - Jul 2, 15:00 UTCJul 3, 01:55 UTC10h 55m
2026-07-01 DLH723 - Jul 1, 09:35 UTCJul 1, 16:30 UTC6h 55m
2026-07-01 DLH722 - Jul 1, 03:10 UTCJul 1, 03:35 UTC25m
2026-06-30 DLH722 - Jun 30, 18:10 UTCJun 30, 21:35 UTC3h 25m
2026-06-30 DLH459 SFO → MUC Jun 30, 04:20 UTCJun 30, 14:45 UTC10h 25m
2026-06-29 DLH458 - Jun 29, 14:54 UTCJun 30, 01:25 UTC10h 30m
2026-06-28 DLH743 - Jun 28, 01:25 UTCJun 28, 14:54 UTC13h 30m
2026-06-27 DLH742 MUC → KIX Jun 27, 11:00 UTCJun 27, 22:09 UTC11h 10m
2026-06-26 DLH769 - Jun 26, 15:29 UTCJun 27, 03:30 UTC12h 0m
2026-06-25 DLH768 - Jun 25, 20:39 UTCJun 26, 08:10 UTC11h 30m
2026-06-25 DLH719 - Jun 25, 11:44 UTCJun 25, 15:44 UTC4h 0m
2026-06-25 DLH719 - Jun 25, 03:15 UTCJun 25, 03:34 UTC20m
2026-06-25 DLH718 - Jun 25, 00:09 UTCJun 25, 00:40 UTC30m
2026-06-24 DLH718 - Jun 24, 14:20 UTCJun 24, 23:34 UTC9h 15m
2026-06-23 DLH4W - Jun 23, 23:19 UTCJun 24, 07:15 UTC7h 55m
2026-06-23 DLH428 - Jun 23, 11:35 UTCJun 23, 20:59 UTC9h 25m
2026-06-22 DLH481 DEN → MUC Jun 22, 22:30 UTCJun 23, 07:40 UTC9h 10m
2026-06-22 DLH480 MUC → DEN Jun 22, 10:19 UTCJun 22, 20:24 UTC10h 5m
2026-06-21 DLH769 - Jun 21, 15:19 UTCJun 22, 03:14 UTC11h 55m
2026-06-20 DLH768 - Jun 20, 20:40 UTCJun 21, 07:49 UTC11h 10m
2026-06-20 DLH723 - Jun 20, 13:09 UTCJun 20, 17:04 UTC3h 55m
2026-06-20 DLH722 - Jun 20, 03:19 UTCJun 20, 03:39 UTC20m
2026-06-19 DLH722 - Jun 19, 18:20 UTCJun 19, 21:44 UTC3h 25m
2026-06-19 DLH743 - Jun 19, 00:45 UTCJun 19, 14:15 UTC13h 30m
2026-06-18 DLH742 MUC → KIX Jun 18, 10:55 UTCJun 18, 22:10 UTC11h 15m
2026-06-17 DLH4W - Jun 17, 23:15 UTCJun 18, 07:20 UTC8h 5m
2026-06-17 DLH428 MUC → CLT Jun 17, 11:20 UTCJun 17, 20:15 UTC8h 55m
2026-06-16 DLH4W - Jun 16, 23:50 UTCJun 17, 07:30 UTC7h 40m
2026-06-16 DLH428 MUC → CLT Jun 16, 12:05 UTCJun 16, 21:05 UTC9h 1m
2026-06-15 DLH723 - Jun 15, 13:00 UTCJun 15, 17:10 UTC4h 10m

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

Mode-S 3C6709 frequently asked

What is Mode-S code 3C6709?
3C6709 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIXI.
Where is Mode-S 3C6709 registered?
Mode-S code 3C6709 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6709 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6709, octal 17063411, decimal 3,958,537.
What flights does 3C6709 operate?
Mode-S 3C6709 has broadcast 20 distinct callsigns, including DLH772, DLH718, DLH773, DLH722, DLH459.