Apparatus

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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 6h ago
Flights observed
70
Distinct callsigns
7
Country
DE
Last broadcast
6h 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 Lufthansa 18 2026-05-29
DLH713 Lufthansa 16 2026-05-29
DLH732 Lufthansa 14 2026-05-29
DLH733 Lufthansa 10 2026-05-25
DLH446 Lufthansa 6 2026-05-27
DLH447 Lufthansa 5 2026-05-28
DLH9911 Lufthansa 1 2026-05-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DLH732 FRA → PVG May 29, 20:10 UTCMay 29, 23:55 UTC3h 45m
2026-05-29 DLH713 ICN → FRA May 29, 04:05 UTCMay 29, 17:10 UTC13h 5m
2026-05-29 DLH712 FRA → ICN May 29, 00:15 UTCMay 29, 00:35 UTC20m
2026-05-28 DLH712 FRA → ICN May 28, 14:00 UTCMay 28, 23:35 UTC9h 35m
2026-05-28 DLH447 DEN → FRA May 28, 00:05 UTCMay 28, 09:15 UTC9h 10m
2026-05-27 DLH446 FRA → DEN May 27, 12:10 UTCMay 27, 22:05 UTC9h 55m
2026-05-25 DLH733 PVG → FRA May 25, 17:35 UTCMay 26, 05:15 UTC11h 40m
2026-05-24 DLH732 FRA → PVG May 24, 23:00 UTCMay 25, 18:05 UTC19h 5m
2026-05-24 DLH732 FRA → PVG May 24, 20:50 UTCMay 25, 18:05 UTC21h 15m
2026-05-24 DLH732 FRA → PVG May 24, 20:05 UTCMay 25, 18:05 UTC22h 0m
2026-05-22 DLH447 DEN → FRA May 22, 23:55 UTCMay 23, 08:40 UTC8h 44m
2026-05-22 DLH446 FRA → DEN May 22, 11:55 UTCMay 22, 21:30 UTC9h 35m
2026-05-21 DLH713 ICN → FRA May 21, 12:25 UTCMay 21, 16:30 UTC4h 5m
2026-05-21 DLH713 ICN → FRA May 21, 03:50 UTCMay 21, 04:10 UTC20m
2026-05-21 DLH712 FRA → ICN May 21, 00:45 UTCMay 21, 01:05 UTC20m
2026-05-20 DLH712 FRA → ICN May 20, 14:10 UTCMay 21, 00:00 UTC9h 50m
2026-05-20 DLH447 DEN → FRA May 20, 00:10 UTCMay 20, 08:35 UTC8h 26m
2026-05-19 DLH446 FRA → DEN May 19, 12:05 UTCMay 19, 21:55 UTC9h 50m
2026-05-17 DLH713 ICN → FRA May 17, 09:30 UTCMay 17, 16:45 UTC7h 15m
2026-05-17 DLH713 ICN → FRA May 17, 04:20 UTCMay 17, 04:35 UTC15m
2026-05-17 DLH712 FRA → ICN May 17, 01:50 UTCMay 17, 02:15 UTC25m
2026-05-16 DLH712 FRA → ICN May 16, 15:01 UTCMay 16, 18:45 UTC3h 45m
2026-05-15 DLH713 ICN → FRA May 15, 10:30 UTCMay 15, 17:35 UTC7h 4m
2026-05-15 DLH713 ICN → FRA May 15, 05:25 UTCMay 15, 05:40 UTC15m
2026-05-15 DLH712 FRA → ICN May 15, 02:50 UTCMay 15, 03:15 UTC25m
2026-05-14 DLH712 FRA → ICN May 14, 16:10 UTCMay 14, 19:50 UTC3h 40m
2026-05-11 DLH733 PVG → FRA May 11, 00:15 UTCMay 11, 04:50 UTC4h 35m
2026-05-09 DLH732 FRA → PVG May 9, 19:49 UTCMay 9, 23:30 UTC3h 40m
2026-05-09 DLH447 DEN → FRA May 9, 00:20 UTCMay 9, 09:10 UTC8h 50m
2026-05-08 DLH446 FRA → DEN May 8, 11:55 UTCMay 8, 21:20 UTC9h 25m
2026-05-07 DLH733 PVG → FRA May 7, 17:35 UTCMay 8, 05:05 UTC11h 30m
2026-05-06 DLH732 FRA → PVG May 6, 22:50 UTCMay 7, 18:05 UTC19h 15m
2026-05-06 DLH732 FRA → PVG May 6, 20:50 UTCMay 7, 18:05 UTC21h 15m
2026-05-06 DLH732 FRA → PVG May 6, 19:45 UTCMay 7, 18:05 UTC22h 20m
2026-05-04 DLH9911 FRA → BIO May 4, 18:00 UTCMay 5, 03:05 UTC9h 6m
2026-04-28 DLH446 FRA → DEN Apr 28, 12:30 UTCApr 28, 22:10 UTC9h 40m
2026-04-26 DLH733 PVG → FRA Apr 26, 18:35 UTCApr 27, 06:15 UTC11h 40m
2026-04-26 DLH733 PVG → FRA Apr 26, 05:05 UTCApr 27, 04:45 UTC23h 40m
2026-04-25 DLH732 FRA → PVG Apr 25, 22:50 UTCApr 26, 18:50 UTC20h 0m
2026-04-25 DLH732 FRA → PVG Apr 25, 20:50 UTCApr 26, 18:50 UTC22h 0m
2026-04-25 DLH732 FRA → PVG Apr 25, 19:50 UTCApr 26, 18:45 UTC22h 55m
2026-04-25 DLH713 ICN → FRA Apr 25, 08:55 UTCApr 25, 16:45 UTC7h 50m
2026-04-25 DLH713 ICN → FRA Apr 25, 03:45 UTCApr 25, 03:55 UTC10m
2026-04-25 DLH712 FRA → ICN Apr 25, 00:35 UTCApr 25, 00:45 UTC10m
2026-04-24 DLH712 FRA → ICN Apr 24, 13:55 UTCApr 24, 23:25 UTC9h 30m
2026-04-23 DLH733 PVG → FRA Apr 23, 17:35 UTCApr 24, 05:25 UTC11h 49m
2026-04-23 DLH733 PVG → FRA Apr 23, 05:10 UTCApr 24, 04:45 UTC23h 34m
2026-04-22 DLH732 FRA → PVG Apr 22, 22:50 UTCApr 23, 17:55 UTC19h 5m
2026-04-22 DLH732 FRA → PVG Apr 22, 20:50 UTCApr 23, 17:55 UTC21h 4m
2026-04-22 DLH732 FRA → PVG Apr 22, 19:45 UTCApr 23, 17:55 UTC22h 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-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 6h 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, DLH713, DLH732, DLH733, DLH446.