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sensors Mode-S transponder

3C6703

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3C6703
Octal
17063403
Decimal
3,958,531
Country
DE
Tail
D-AIXC
Type
A359
No current signal · last broadcast 5h ago
Flights observed
156
Distinct callsigns
7
Country
DE
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 3C6703.

Country allocation

The ICAO 24-bit address 3C6703 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 7 distinct

Callsign Airline Flights Last seen
DLH712 - 36 2026-07-13
DLH732 - 34 2026-07-13
DLH713 - 33 2026-07-13
DLH733 - 23 2026-07-10
DLH446 - 15 2026-07-07
DLH447 - 14 2026-07-07
DLH9911 Lufthansa 1 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DLH732 - Jul 13, 19:50 UTCJul 14, 02:05 UTC6h 15m
2026-07-13 DLH713 - Jul 13, 08:40 UTCJul 13, 16:05 UTC7h 25m
2026-07-13 DLH713 - Jul 13, 03:40 UTCJul 13, 03:55 UTC15m
2026-07-13 DLH712 - Jul 13, 00:05 UTCJul 13, 00:30 UTC25m
2026-07-12 DLH712 - Jul 12, 14:01 UTCJul 12, 23:25 UTC9h 25m
2026-07-10 DLH733 - Jul 10, 17:55 UTCJul 11, 05:20 UTC11h 25m
2026-07-10 DLH733 - Jul 10, 04:55 UTCJul 11, 04:45 UTC23h 50m
2026-07-09 DLH732 - Jul 9, 22:50 UTCJul 10, 18:05 UTC19h 15m
2026-07-09 DLH732 - Jul 9, 20:50 UTCJul 10, 18:05 UTC21h 15m
2026-07-09 DLH732 - Jul 9, 20:05 UTCJul 10, 18:05 UTC22h 0m
2026-07-09 DLH713 - Jul 9, 09:25 UTCJul 9, 17:00 UTC7h 35m
2026-07-09 DLH713 - Jul 9, 04:05 UTCJul 9, 04:25 UTC20m
2026-07-09 DLH712 - Jul 9, 00:00 UTCJul 9, 00:20 UTC20m
2026-07-08 DLH712 - Jul 8, 14:00 UTCJul 8, 23:20 UTC9h 20m
2026-07-07 DLH447 DEN → FRA Jul 7, 23:55 UTCJul 8, 08:55 UTC9h 0m
2026-07-07 DLH446 - Jul 7, 11:55 UTCJul 7, 21:50 UTC9h 55m
2026-07-07 DLH733 - Jul 7, 01:10 UTCJul 7, 05:35 UTC4h 25m
2026-07-06 DLH733 - Jul 6, 04:50 UTCJul 7, 04:45 UTC23h 55m
2026-07-05 DLH732 - Jul 5, 19:50 UTCJul 6, 05:20 UTC9h 30m
2026-07-05 DLH447 DEN → FRA Jul 5, 00:05 UTCJul 5, 09:00 UTC8h 55m
2026-07-04 DLH446 FRA → DEN Jul 4, 12:10 UTCJul 4, 21:50 UTC9h 40m
2026-06-30 DLH733 - Jun 30, 18:05 UTCJul 1, 05:10 UTC11h 5m
2026-06-30 DLH733 - Jun 30, 05:15 UTCJul 1, 04:45 UTC23h 30m
2026-06-29 DLH732 - Jun 29, 22:55 UTCJun 30, 18:20 UTC19h 26m
2026-06-29 DLH732 - Jun 29, 20:49 UTCJun 30, 18:20 UTC21h 31m
2026-06-29 DLH732 - Jun 29, 20:09 UTCJun 30, 18:20 UTC22h 11m
2026-06-29 DLH713 - Jun 29, 12:00 UTCJun 29, 16:25 UTC4h 25m
2026-06-29 DLH713 - Jun 29, 03:39 UTCJun 29, 03:54 UTC15m
2026-06-29 DLH712 - Jun 29, 00:24 UTCJun 29, 00:54 UTC30m
2026-06-28 DLH712 - Jun 28, 14:14 UTCJun 28, 23:34 UTC9h 20m
2026-06-28 DLH447 DEN → FRA Jun 28, 01:29 UTCJun 28, 10:35 UTC9h 5m
2026-06-27 DLH446 FRA → DEN Jun 27, 12:29 UTCJun 27, 21:59 UTC9h 30m
2026-06-26 DLH713 - Jun 26, 04:59 UTCJun 26, 16:24 UTC11h 25m
2026-06-26 DLH713 - Jun 26, 03:50 UTCJun 26, 04:04 UTC15m
2026-06-26 DLH712 - Jun 26, 00:24 UTCJun 26, 00:50 UTC25m
2026-06-25 DLH712 - Jun 25, 14:09 UTCJun 25, 23:34 UTC9h 25m
2026-06-23 DLH733 - Jun 23, 17:25 UTCJun 24, 04:59 UTC11h 35m
2026-06-23 DLH733 - Jun 23, 05:04 UTCJun 24, 04:44 UTC23h 40m
2026-06-22 DLH732 - Jun 22, 22:49 UTCJun 23, 21:29 UTC22h 40m
2026-06-22 DLH732 - Jun 22, 20:00 UTCJun 23, 17:54 UTC21h 55m
2026-06-22 DLH713 - Jun 22, 04:49 UTCJun 22, 16:45 UTC11h 55m
2026-06-22 DLH713 - Jun 22, 03:40 UTCJun 22, 03:50 UTC10m
2026-06-22 DLH712 - Jun 22, 00:29 UTCJun 22, 00:44 UTC15m
2026-06-21 DLH712 - Jun 21, 14:15 UTCJun 21, 23:50 UTC9h 35m
2026-06-21 DLH447 DEN → FRA Jun 21, 00:19 UTCJun 21, 09:15 UTC8h 55m
2026-06-20 DLH446 - Jun 20, 12:24 UTCJun 20, 20:45 UTC8h 20m
2026-06-19 DLH447 DEN → FRA Jun 19, 01:39 UTCJun 19, 10:39 UTC9h 0m
2026-06-18 DLH446 FRA → DEN Jun 18, 11:55 UTCJun 18, 21:35 UTC9h 40m
2026-06-16 DLH733 - Jun 16, 21:40 UTCJun 17, 05:00 UTC7h 20m
2026-06-15 DLH732 - Jun 15, 22:49 UTCJun 16, 21:40 UTC22h 51m

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

Mode-S 3C6703 frequently asked

What is Mode-S code 3C6703?
3C6703 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIXC.
Where is Mode-S 3C6703 registered?
Mode-S code 3C6703 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C6703 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C6703, octal 17063403, decimal 3,958,531.
What flights does 3C6703 operate?
Mode-S 3C6703 has broadcast 7 distinct callsigns, including DLH712, DLH732, DLH713, DLH733, DLH446.