Apparatus

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sensors Mode-S transponder

3C671A

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3C671A
Octal
17063432
Decimal
3,958,554
Country
DE
Tail
D-AIXZ
Type
A359
Broadcasting now · callsign DLH5Y · 40,000 ft
Flights observed
161
Distinct callsigns
20
Country
DE
Last broadcast
4m ago

Current position

3C671A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C671A 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
DLH727 - 11 2026-07-13
DLH726 - 10 2026-07-12
DLH714 - 10 2026-07-11
DLH413 - 10 2026-07-05
DLH412 - 10 2026-07-04
DLH411 - 10 2026-07-09
DLH410 - 10 2026-07-09
DLH764 Lufthansa 9 2026-06-06
DLH715 - 9 2026-07-12
DLH5Y - 9 2026-07-14
DLH765 Lufthansa 8 2026-06-06
DLH437 - 8 2026-07-10
DLH436 - 8 2026-07-10
DLH2P - 8 2026-07-04
DLH4C Lufthansa 7 2026-06-10
DLH2C Lufthansa 7 2026-06-09
DLH4W Lufthansa 4 2026-06-02
DLH428 Lufthansa 4 2026-06-02
DLH461 Lufthansa 3 2026-04-18
DLH489 Lufthansa 2 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH5Y - Jul 14, 11:05 UTCJul 14, 20:30 UTC9h 25m
2026-07-13 DLH727 - Jul 13, 16:40 UTCJul 14, 04:10 UTC11h 30m
2026-07-13 DLH727 - Jul 13, 02:50 UTCJul 14, 02:30 UTC23h 40m
2026-07-12 DLH726 - Jul 12, 22:35 UTCJul 13, 16:55 UTC18h 20m
2026-07-12 DLH726 - Jul 12, 20:55 UTCJul 13, 16:55 UTC20h 0m
2026-07-12 DLH715 HND → MUC Jul 12, 00:45 UTCJul 12, 14:15 UTC13h 30m
2026-07-11 DLH714 MUC → HND Jul 11, 10:50 UTCJul 11, 22:20 UTC11h 30m
2026-07-10 DLH437 - Jul 10, 21:10 UTCJul 11, 05:01 UTC7h 50m
2026-07-10 DLH436 MUC → ORD Jul 10, 08:30 UTCJul 10, 17:30 UTC9h 0m
2026-07-09 DLH411 JFK → MUC Jul 9, 22:00 UTCJul 10, 05:05 UTC7h 5m
2026-07-09 DLH410 - Jul 9, 10:40 UTCJul 9, 18:45 UTC8h 5m
2026-07-08 DLH411 - Jul 8, 21:55 UTCJul 9, 05:15 UTC7h 20m
2026-07-08 DLH410 - Jul 8, 10:35 UTCJul 8, 18:25 UTC7h 50m
2026-07-07 DLH727 - Jul 7, 17:30 UTCJul 8, 04:45 UTC11h 15m
2026-07-06 DLH726 - Jul 6, 23:15 UTCJul 7, 17:45 UTC18h 30m
2026-07-06 DLH726 - Jul 6, 20:35 UTCJul 7, 17:45 UTC21h 10m
2026-07-06 DLH715 - Jul 6, 01:10 UTCJul 6, 15:00 UTC13h 50m
2026-07-05 DLH714 - Jul 5, 11:25 UTCJul 5, 22:45 UTC11h 20m
2026-07-05 DLH413 EWR → MUC Jul 5, 01:40 UTCJul 5, 08:35 UTC6h 55m
2026-07-04 DLH412 - Jul 4, 14:30 UTCJul 4, 23:05 UTC8h 35m
2026-07-04 DLH2P - Jul 4, 00:55 UTCJul 4, 11:15 UTC10h 20m
2026-07-03 DLH5Y - Jul 3, 11:05 UTCJul 3, 22:20 UTC11h 15m
2026-07-02 DLH727 - Jul 2, 17:00 UTCJul 3, 03:50 UTC10h 50m
2026-07-02 DLH727 - Jul 2, 00:35 UTCJul 3, 00:30 UTC23h 55m
2026-07-01 DLH726 - Jul 1, 22:35 UTCJul 2, 17:25 UTC18h 50m
2026-07-01 DLH726 - Jul 1, 21:20 UTCJul 2, 17:25 UTC20h 5m
2026-07-01 DLH715 - Jul 1, 00:55 UTCJul 1, 14:40 UTC13h 45m
2026-06-30 DLH714 MUC → HND Jun 30, 11:00 UTCJun 30, 22:40 UTC11h 40m
2026-06-29 DLH715 - Jun 29, 00:44 UTCJun 29, 14:34 UTC13h 50m
2026-06-28 DLH714 - Jun 28, 10:55 UTCJun 28, 22:24 UTC11h 30m
2026-06-27 DLH727 - Jun 27, 16:59 UTCJun 28, 04:05 UTC11h 5m
2026-06-27 DLH727 - Jun 27, 05:19 UTCJun 28, 04:05 UTC22h 45m
2026-06-26 DLH726 - Jun 26, 22:34 UTCJun 27, 17:25 UTC18h 50m
2026-06-26 DLH726 - Jun 26, 20:40 UTCJun 27, 17:25 UTC20h 45m
2026-06-26 DLH715 HND → MUC Jun 26, 01:05 UTCJun 26, 14:55 UTC13h 50m
2026-06-25 DLH714 MUC → HND Jun 25, 11:10 UTCJun 25, 22:39 UTC11h 30m
2026-06-23 DLH2P SAN → MUC Jun 23, 01:35 UTCJun 23, 12:09 UTC10h 35m
2026-06-22 DLH5Y MUC → SAN Jun 22, 11:09 UTCJun 22, 22:40 UTC11h 30m
2026-06-21 DLH2P - Jun 21, 00:29 UTCJun 21, 11:05 UTC10h 35m
2026-06-20 DLH5Y - Jun 20, 10:55 UTCJun 20, 22:05 UTC11h 10m
2026-06-20 DLH413 EWR → MUC Jun 20, 01:29 UTCJun 20, 08:29 UTC7h 0m
2026-06-19 DLH412 MUC → EWR Jun 19, 14:39 UTCJun 19, 22:49 UTC8h 10m
2026-06-19 DLH413 - Jun 19, 01:04 UTCJun 19, 08:04 UTC7h 0m
2026-06-18 DLH412 MUC → EWR Jun 18, 14:35 UTCJun 18, 22:45 UTC8h 10m
2026-06-18 DLH2P - Jun 18, 00:55 UTCJun 18, 11:35 UTC10h 40m
2026-06-17 DLH5Y MUC → SAN Jun 17, 10:55 UTCJun 17, 22:15 UTC11h 20m
2026-06-16 DLH411 - Jun 16, 21:55 UTCJun 17, 04:45 UTC6h 50m
2026-06-16 DLH410 MUC → JFK Jun 16, 10:35 UTCJun 16, 18:45 UTC8h 10m
2026-06-15 DLH437 ORD → MUC Jun 15, 20:54 UTCJun 16, 04:50 UTC7h 55m
2026-06-15 DLH436 MUC → ORD Jun 15, 08:25 UTCJun 15, 17:10 UTC8h 45m

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

Mode-S 3C671A frequently asked

What is Mode-S code 3C671A?
3C671A is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AIXZ.
Where is Mode-S 3C671A registered?
Mode-S code 3C671A is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C671A broadcasting right now?
Yes. Mode-S 3C671A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C671A, octal 17063432, decimal 3,958,554.
What flights does 3C671A operate?
Mode-S 3C671A has broadcast 20 distinct callsigns, including DLH727, DLH726, DLH714, DLH413, DLH412.