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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
Broadcasting now · callsign DLH444 · 13,200 ft
Flights observed
182
Distinct callsigns
20
Country
DE
Last broadcast
37m ago

Current position

3C4A03 is currently broadcasting. Map zoomed to live position.

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 - 30 2026-07-13
DLH591 - 28 2026-07-14
DLH444 - 22 2026-07-14
DLH445 - 20 2026-07-07
DLH443 - 15 2026-07-12
DLH3V - 15 2026-07-12
DLH7JF - 10 2026-07-11
DLH107 - 10 2026-07-11
DLH6EE - 9 2026-06-23
DLH4MW Lufthansa 9 2026-06-23
DLH753 Lufthansa 2 2026-05-12
DLH569 Lufthansa 2 2026-05-31
DLH479 Lufthansa 2 2026-06-15
DLH478 Lufthansa 2 2026-06-15
DLH9XK - 1 2026-07-11
DLH501 Lufthansa 1 2026-05-30
DLH500 Lufthansa 1 2026-05-29
DLH471 Lufthansa 1 2026-04-27
DLH470 Lufthansa 1 2026-04-27
DLH2VU - 1 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH444 - Jul 14, 08:55 UTCJul 14, 16:45 UTC7h 50m
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
2026-07-05 DLH3V FRA → DTW Jul 5, 09:30 UTCJul 5, 17:45 UTC8h 15m
2026-07-05 DLH591 - Jul 5, 00:15 UTCJul 5, 04:20 UTC4h 5m
2026-07-04 DLH590 FRA → NBO Jul 4, 10:35 UTCJul 4, 13:40 UTC3h 5m
2026-07-03 DLH445 ATL → FRA Jul 3, 23:45 UTCJul 4, 07:30 UTC7h 45m
2026-07-03 DLH444 FRA → ATL Jul 3, 20:45 UTCJul 3, 21:25 UTC40m
2026-07-03 DLH444 FRA → ATL Jul 3, 08:35 UTCJul 3, 18:35 UTC10h 0m
2026-07-03 DLH591 - Jul 3, 00:55 UTCJul 3, 03:40 UTC2h 45m
2026-07-02 DLH590 FRA → NBO Jul 2, 17:25 UTCJul 2, 17:35 UTC10m
2026-07-02 DLH590 FRA → NBO Jul 2, 09:55 UTCJul 2, 13:20 UTC3h 25m
2026-06-30 DLH591 FRA → FRA Jun 30, 09:55 UTCJul 1, 04:05 UTC18h 10m
2026-06-29 DLH445 ATL → FRA Jun 29, 20:15 UTCJun 30, 04:10 UTC7h 56m
2026-06-29 DLH444 FRA → ATL Jun 29, 08:35 UTCJun 29, 17:30 UTC8h 55m
2026-06-28 DLH445 ATL → FRA Jun 28, 20:09 UTCJun 29, 03:54 UTC7h 45m
2026-06-28 DLH444 FRA → ATL Jun 28, 08:50 UTCJun 28, 17:34 UTC8h 45m
2026-06-27 DLH445 ATL → FRA Jun 27, 20:09 UTCJun 28, 03:59 UTC7h 50m
2026-06-27 DLH444 FRA → ATL Jun 27, 09:00 UTCJun 27, 17:44 UTC8h 45m
2026-06-26 DLH445 ATL → FRA Jun 26, 20:24 UTCJun 27, 04:19 UTC7h 55m
2026-06-26 DLH444 FRA → ATL Jun 26, 08:45 UTCJun 26, 17:40 UTC8h 55m
2026-06-25 DLH591 - Jun 25, 23:59 UTCJun 26, 03:50 UTC3h 50m
2026-06-25 DLH590 FRA → NBO Jun 25, 09:59 UTCJun 25, 13:09 UTC3h 10m
2026-06-25 DLH591 - Jun 25, 00:05 UTCJun 25, 03:54 UTC3h 50m
2026-06-24 DLH590 FRA → NBO Jun 24, 10:04 UTCJun 24, 13:14 UTC3h 10m
2026-06-23 DLH6EE MUC → FRA Jun 23, 16:20 UTCJun 23, 16:59 UTC40m
2026-06-23 DLH4MW BER → FRA Jun 23, 14:35 UTCJun 23, 15:09 UTC35m
2026-06-23 DLH107 - Jun 23, 12:45 UTCJun 23, 13:19 UTC35m
2026-06-23 DLH7JF FRA → MUC Jun 23, 10:44 UTCJun 23, 11:19 UTC35m
2026-06-22 DLH445 ATL → FRA Jun 22, 20:30 UTCJun 23, 04:19 UTC7h 50m

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?
Yes. Mode-S 3C4A03 is currently airborne.
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.