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sensors Mode-S transponder

3C4A03

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABPC · BOEING 787-9 Dreamliner

Hex
3C4A03
Octal
17045003
Decimal
3,951,107
Country
DE
Tail
D-ABPC
Type
B789
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
209
Distinct callsigns
20
Country
DE
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S 3C4A03.

Country allocation

The ICAO 24-bit address 3C4A03 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
DLH590 - 31 2026-07-18
DLH591 Lufthansa 29 2026-07-19
DLH444 Lufthansa 27 2026-07-26
DLH445 Lufthansa 26 2026-07-26
DLH443 Lufthansa 18 2026-07-24
DLH3V Lufthansa 18 2026-07-24
DLH7JF Lufthansa 12 2026-07-22
DLH107 Lufthansa 12 2026-07-22
DLH6EE - 10 2026-07-16
DLH4MW - 10 2026-07-16
DLH9XK - 2 2026-07-16
DLH753 Lufthansa 2 2026-05-12
DLH569 Lufthansa 2 2026-05-31
DLH479 Lufthansa 2 2026-06-15
DLH478 Lufthansa 2 2026-06-15
DLH2VU - 2 2026-07-16
DLH501 Lufthansa 1 2026-05-30
DLH500 Lufthansa 1 2026-05-29
DLH471 Lufthansa 1 2026-04-27
DLH470 Lufthansa 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH445 ATL → FRA Jul 26, 20:00 UTCJul 26, 22:45 UTC2h 45m
2026-07-26 DLH444 FRA → ATL Jul 26, 08:40 UTCJul 26, 17:35 UTC8h 55m
2026-07-25 DLH445 ATL → FRA Jul 25, 20:35 UTCJul 26, 04:30 UTC7h 55m
2026-07-25 DLH444 FRA → ATL Jul 25, 08:40 UTCJul 25, 17:35 UTC8h 55m
2026-07-24 DLH443 DTW → FRA Jul 24, 20:25 UTCJul 25, 03:30 UTC7h 5m
2026-07-24 DLH3V FRA → DTW Jul 24, 09:30 UTCJul 24, 17:40 UTC8h 10m
2026-07-23 DLH443 DTW → FRA Jul 23, 20:20 UTCJul 24, 03:25 UTC7h 5m
2026-07-23 DLH3V FRA → DTW Jul 23, 09:35 UTCJul 23, 17:55 UTC8h 20m
2026-07-22 DLH107 MUC → FRA Jul 22, 12:40 UTCJul 22, 13:15 UTC35m
2026-07-22 DLH7JF FRA → LHR Jul 22, 11:10 UTCJul 22, 11:30 UTC20m
2026-07-20 DLH445 ATL → FRA Jul 20, 20:00 UTCJul 21, 04:10 UTC8h 10m
2026-07-20 DLH444 FRA → ATL Jul 20, 09:00 UTCJul 20, 17:45 UTC8h 45m
2026-07-19 DLH445 ATL → FRA Jul 19, 21:05 UTCJul 20, 05:15 UTC8h 10m
2026-07-19 DLH444 FRA → ATL Jul 19, 08:50 UTCJul 19, 17:45 UTC8h 55m
2026-07-19 DLH591 NBO → FRA Jul 19, 00:45 UTCJul 19, 04:05 UTC3h 20m
2026-07-18 DLH590 - Jul 18, 10:05 UTCJul 18, 13:05 UTC3h 0m
2026-07-17 DLH445 - Jul 17, 21:10 UTCJul 18, 05:45 UTC8h 36m
2026-07-17 DLH444 FRA → ATL Jul 17, 08:40 UTCJul 17, 17:30 UTC8h 50m
2026-07-16 DLH6EE - Jul 16, 16:30 UTCJul 16, 17:05 UTC35m
2026-07-16 DLH4MW - Jul 16, 14:35 UTCJul 16, 15:10 UTC35m
2026-07-16 DLH107 - Jul 16, 12:34 UTCJul 16, 13:10 UTC35m
2026-07-16 DLH7JF - Jul 16, 10:40 UTCJul 16, 11:20 UTC40m
2026-07-16 DLH2VU - Jul 16, 08:25 UTCJul 16, 09:05 UTC40m
2026-07-16 DLH9XK - Jul 16, 06:35 UTCJul 16, 07:10 UTC35m
2026-07-15 DLH443 - Jul 15, 20:25 UTCJul 16, 03:50 UTC7h 25m
2026-07-15 DLH3V FRA → DTW Jul 15, 09:35 UTCJul 15, 17:30 UTC7h 55m
2026-07-14 DLH445 ATL → FRA Jul 14, 20:10 UTCJul 15, 04:25 UTC8h 14m
2026-07-14 DLH444 FRA → ATL Jul 14, 08:55 UTCJul 14, 17:35 UTC8h 40m
2026-07-14 DLH591 - Jul 14, 00:50 UTCJul 14, 04:05 UTC3h 15m
2026-07-14 DLH591 - Jul 14, 00:05 UTCJul 14, 00:45 UTC40m
2026-07-13 DLH590 - Jul 13, 17:15 UTCJul 13, 17:25 UTC10m
2026-07-13 DLH590 - Jul 13, 10:00 UTCJul 13, 13:00 UTC3h 0m
2026-07-12 DLH443 - Jul 12, 20:10 UTCJul 13, 03:30 UTC7h 20m
2026-07-12 DLH3V - Jul 12, 09:30 UTCJul 12, 17:35 UTC8h 5m
2026-07-11 DLH107 MUC → FRA Jul 11, 12:10 UTCJul 11, 12:50 UTC40m
2026-07-11 DLH7JF FRA → MUC Jul 11, 10:35 UTCJul 11, 11:10 UTC35m
2026-07-11 DLH2VU MUC → FRA Jul 11, 08:40 UTCJul 11, 09:15 UTC35m
2026-07-11 DLH9XK FRA → MUC Jul 11, 07:00 UTCJul 11, 07:30 UTC30m
2026-07-10 DLH591 - Jul 10, 01:15 UTCJul 10, 04:20 UTC3h 5m
2026-07-09 DLH590 - Jul 9, 17:20 UTCJul 9, 17:30 UTC10m
2026-07-09 DLH590 - Jul 9, 09:55 UTCJul 9, 13:00 UTC3h 5m
2026-07-09 DLH591 - Jul 9, 01:25 UTCJul 9, 04:20 UTC2h 55m
2026-07-09 DLH591 - Jul 9, 00:20 UTCJul 9, 01:20 UTC1h 0m
2026-07-08 DLH590 FRA → NBO Jul 8, 17:15 UTCJul 8, 17:25 UTC10m
2026-07-08 DLH590 FRA → NBO Jul 8, 09:55 UTCJul 8, 12:55 UTC3h 0m
2026-07-07 DLH445 ATL → FRA Jul 7, 20:05 UTCJul 8, 04:20 UTC8h 15m
2026-07-07 DLH444 FRA → ATL Jul 7, 08:50 UTCJul 7, 17:45 UTC8h 55m
2026-07-06 DLH445 - Jul 6, 20:15 UTCJul 7, 04:10 UTC7h 55m
2026-07-06 DLH444 FRA → ATL Jul 6, 08:35 UTCJul 6, 17:45 UTC9h 10m
2026-07-05 DLH443 - Jul 5, 21:00 UTCJul 6, 03:55 UTC6h 55m

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

Mode-S 3C4A03 frequently asked

What is Mode-S code 3C4A03?
3C4A03 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABPC.
Where is Mode-S 3C4A03 registered?
Mode-S code 3C4A03 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A03 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A03, octal 17045003, decimal 3,951,107.
What flights does 3C4A03 operate?
Mode-S 3C4A03 has broadcast 20 distinct callsigns, including DLH590, DLH591, DLH444, DLH445, DLH443.