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sensors Mode-S transponder

3C4A01

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3C4A01
Octal
17045001
Decimal
3,951,105
Country
DE
Tail
D-ABPA
Type
B789
No current signal · last broadcast 1h ago
Flights observed
194
Distinct callsigns
20
Country
DE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 3C4A01.

Country allocation

The ICAO 24-bit address 3C4A01 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
DLH443 - 26 2026-07-17
DLH444 - 25 2026-07-10
DLH445 - 24 2026-07-10
DLH3V - 22 2026-07-17
DLH7JF - 12 2026-07-12
DLH590 - 12 2026-07-15
DLH107 - 12 2026-07-12
DLH591 - 11 2026-07-16
DLH6EE - 10 2026-06-20
DLH4MW Lufthansa 10 2026-06-20
DLH752 Lufthansa 5 2026-06-19
DLH761 - 4 2026-07-16
DLH760 - 4 2026-07-16
DLH753 - 3 2026-06-26
DLH569 - 3 2026-06-23
DLH479 Lufthansa 2 2026-06-29
DLH478 Lufthansa 2 2026-06-29
DLH9XK - 1 2026-07-12
DLH568 Lufthansa 1 2026-05-03
DLH469 - 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 DLH443 - Jul 17, 20:29 UTCJul 17, 21:50 UTC1h 20m
2026-07-17 DLH3V FRA → DTW Jul 17, 09:35 UTCJul 17, 17:35 UTC8h 0m
2026-07-16 DLH761 DEL → FRA Jul 16, 21:45 UTCJul 17, 05:15 UTC7h 30m
2026-07-16 DLH760 FRA → DEL Jul 16, 12:05 UTCJul 16, 19:14 UTC7h 10m
2026-07-16 DLH591 - Jul 16, 00:15 UTCJul 16, 04:20 UTC4h 5m
2026-07-15 DLH590 - Jul 15, 10:20 UTCJul 15, 13:15 UTC2h 55m
2026-07-14 DLH443 - Jul 14, 20:25 UTCJul 15, 03:50 UTC7h 24m
2026-07-14 DLH3V FRA → DTW Jul 14, 09:40 UTCJul 14, 17:40 UTC8h 0m
2026-07-14 DLH443 - Jul 14, 03:35 UTCJul 14, 04:15 UTC40m
2026-07-13 DLH443 - Jul 13, 20:40 UTCJul 14, 03:30 UTC6h 50m
2026-07-13 DLH3V FRA → DTW Jul 13, 09:55 UTCJul 13, 17:55 UTC8h 0m
2026-07-12 DLH107 MUC → FRA Jul 12, 12:25 UTCJul 12, 13:01 UTC35m
2026-07-12 DLH7JF FRA → MUC Jul 12, 10:40 UTCJul 12, 11:15 UTC35m
2026-07-12 DLH2VU MUC → FRA Jul 12, 08:15 UTCJul 12, 08:55 UTC40m
2026-07-12 DLH9XK FRA → MUC Jul 12, 06:35 UTCJul 12, 07:05 UTC30m
2026-07-11 DLH443 - Jul 11, 20:10 UTCJul 12, 03:35 UTC7h 25m
2026-07-11 DLH3V FRA → DTW Jul 11, 09:25 UTCJul 11, 17:30 UTC8h 5m
2026-07-10 DLH445 ATL → FRA Jul 10, 21:05 UTCJul 11, 05:05 UTC8h 0m
2026-07-10 DLH444 FRA → ATL Jul 10, 08:50 UTCJul 10, 18:05 UTC9h 15m
2026-07-09 DLH443 - Jul 9, 20:30 UTCJul 10, 03:40 UTC7h 10m
2026-07-09 DLH3V FRA → DTW Jul 9, 09:35 UTCJul 9, 18:05 UTC8h 30m
2026-07-08 DLH445 ATL → FRA Jul 8, 20:05 UTCJul 9, 04:25 UTC8h 20m
2026-07-08 DLH444 FRA → ATL Jul 8, 08:40 UTCJul 8, 17:35 UTC8h 55m
2026-07-06 DLH443 - Jul 6, 20:40 UTCJul 7, 03:55 UTC7h 15m
2026-07-06 DLH3V FRA → DTW Jul 6, 09:40 UTCJul 6, 17:55 UTC8h 15m
2026-07-05 DLH445 - Jul 5, 21:10 UTCJul 6, 04:50 UTC7h 40m
2026-07-05 DLH444 FRA → ATL Jul 5, 09:05 UTCJul 5, 18:15 UTC9h 10m
2026-07-04 DLH445 ATL → FRA Jul 4, 20:05 UTCJul 5, 04:05 UTC8h 0m
2026-07-04 DLH444 FRA → ATL Jul 4, 08:40 UTCJul 4, 17:55 UTC9h 15m
2026-07-04 DLH591 - Jul 4, 01:10 UTCJul 4, 04:10 UTC3h 0m
2026-07-03 DLH590 FRA → NBO Jul 3, 17:20 UTCJul 3, 17:30 UTC10m
2026-07-03 DLH590 FRA → NBO Jul 3, 10:00 UTCJul 3, 13:05 UTC3h 5m
2026-07-02 DLH761 - Jul 2, 21:45 UTCJul 3, 05:45 UTC8h 0m
2026-07-02 DLH760 FRA → DEL Jul 2, 11:55 UTCJul 2, 19:05 UTC7h 10m
2026-07-01 DLH445 ATL → FRA Jul 1, 20:25 UTCJul 2, 04:20 UTC7h 55m
2026-07-01 DLH444 FRA → ATL Jul 1, 08:45 UTCJul 1, 18:00 UTC9h 15m
2026-06-30 DLH445 ATL → FRA Jun 30, 20:15 UTCJul 1, 04:20 UTC8h 5m
2026-06-30 DLH444 FRA → ATL Jun 30, 14:45 UTCJun 30, 17:35 UTC2h 50m
2026-06-30 DLH444 FRA → ATL Jun 30, 08:50 UTCJun 30, 10:35 UTC1h 45m
2026-06-29 DLH479 YUL → FRA Jun 29, 23:25 UTCJun 30, 05:40 UTC6h 16m
2026-06-29 DLH478 FRA → YUL Jun 29, 13:34 UTCJun 29, 20:40 UTC7h 5m
2026-06-29 DLH591 - Jun 29, 00:54 UTCJun 29, 04:50 UTC3h 55m
2026-06-28 DLH590 FRA → NBO Jun 28, 18:40 UTCJun 28, 18:55 UTC15m
2026-06-28 DLH590 FRA → NBO Jun 28, 11:09 UTCJun 28, 13:45 UTC2h 35m
2026-06-26 DLH753 - Jun 26, 12:19 UTCJun 27, 06:59 UTC18h 40m
2026-06-26 DLH753 FRA → FRA Jun 26, 11:45 UTCJun 27, 06:59 UTC19h 15m
2026-06-23 DLH569 FRA → FRA Jun 23, 10:35 UTCJun 24, 04:39 UTC18h 5m
2026-06-22 DLH761 DEL → FRA Jun 22, 21:40 UTCJun 23, 05:34 UTC7h 55m
2026-06-22 DLH760 FRA → DEL Jun 22, 12:15 UTCJun 22, 19:14 UTC7h 0m
2026-06-21 DLH761 DEL → FRA Jun 21, 21:39 UTCJun 22, 05:44 UTC8h 5m

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

Mode-S 3C4A01 frequently asked

What is Mode-S code 3C4A01?
3C4A01 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABPA.
Where is Mode-S 3C4A01 registered?
Mode-S code 3C4A01 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A01 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A01, octal 17045001, decimal 3,951,105.
What flights does 3C4A01 operate?
Mode-S 3C4A01 has broadcast 20 distinct callsigns, including DLH443, DLH444, DLH445, DLH3V, DLH7JF.