Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 2h ago
Flights observed
106
Distinct callsigns
14
Country
DE
Last broadcast
2h 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 14 distinct

Callsign Airline Flights Last seen
DLH443 Lufthansa 19 2026-05-30
DLH3V Lufthansa 16 2026-05-29
DLH445 Lufthansa 15 2026-06-01
DLH444 Lufthansa 15 2026-06-01
DLH7JF Lufthansa 7 2026-05-24
DLH107 Lufthansa 7 2026-05-24
DLH6EE Lufthansa 6 2026-05-24
DLH4MW Lufthansa 6 2026-05-24
DLH591 Lufthansa 5 2026-05-12
DLH590 Lufthansa 4 2026-05-09
DLH752 Lufthansa 2 2026-05-05
DLH569 Lufthansa 2 2026-04-19
DLH568 Lufthansa 1 2026-05-03
DLH450 Lufthansa 1 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 DLH450 FRA → LAX Jun 2, 12:50 UTCJun 2, 17:50 UTC5h 0m
2026-06-01 DLH445 ATL → FRA Jun 1, 20:00 UTCJun 2, 03:45 UTC7h 45m
2026-06-01 DLH444 FRA → ATL Jun 1, 08:30 UTCJun 1, 17:05 UTC8h 35m
2026-05-31 DLH445 ATL → FRA May 31, 20:15 UTCJun 1, 04:20 UTC8h 5m
2026-05-31 DLH444 FRA → ATL May 31, 09:05 UTCMay 31, 18:00 UTC8h 55m
2026-05-30 DLH445 ATL → FRA May 30, 20:05 UTCMay 30, 23:00 UTC2h 55m
2026-05-30 DLH444 FRA → ATL May 30, 08:55 UTCMay 30, 17:40 UTC8h 45m
2026-05-30 DLH443 DTW → FRA May 30, 01:55 UTCMay 30, 04:00 UTC2h 5m
2026-05-29 DLH443 DTW → FRA May 29, 20:25 UTCMay 29, 22:30 UTC2h 5m
2026-05-29 DLH3V FRA → DTW May 29, 09:45 UTCMay 29, 17:35 UTC7h 50m
2026-05-28 DLH445 ATL → FRA May 28, 20:10 UTCMay 29, 04:20 UTC8h 10m
2026-05-28 DLH444 FRA → ATL May 28, 08:40 UTCMay 28, 17:15 UTC8h 35m
2026-05-27 DLH445 ATL → FRA May 27, 20:20 UTCMay 28, 04:30 UTC8h 10m
2026-05-27 DLH444 FRA → ATL May 27, 08:50 UTCMay 27, 17:55 UTC9h 5m
2026-05-25 DLH443 DTW → FRA May 25, 20:24 UTCMay 26, 03:30 UTC7h 5m
2026-05-25 DLH3V FRA → DTW May 25, 09:35 UTCMay 25, 17:50 UTC8h 15m
2026-05-24 DLH6EE FRA → LHR May 24, 16:20 UTCMay 24, 16:55 UTC35m
2026-05-24 DLH4MW BER → FRA May 24, 14:35 UTCMay 24, 15:10 UTC35m
2026-05-24 DLH107 MUC → FRA May 24, 12:35 UTCMay 24, 13:05 UTC30m
2026-05-24 DLH7JF FRA → LHR May 24, 10:40 UTCMay 24, 11:15 UTC35m
2026-05-22 DLH445 ATL → FRA May 22, 21:25 UTCMay 23, 05:05 UTC7h 39m
2026-05-22 DLH444 FRA → ATL May 22, 08:55 UTCMay 22, 18:00 UTC9h 5m
2026-05-21 DLH443 DTW → FRA May 21, 20:50 UTCMay 22, 03:40 UTC6h 50m
2026-05-21 DLH3V FRA → DTW May 21, 09:35 UTCMay 21, 17:55 UTC8h 20m
2026-05-20 DLH443 DTW → FRA May 20, 20:45 UTCMay 21, 03:40 UTC6h 55m
2026-05-20 DLH3V FRA → DTW May 20, 09:40 UTCMay 20, 18:25 UTC8h 45m
2026-05-19 DLH445 ATL → FRA May 19, 20:45 UTCMay 20, 05:05 UTC8h 21m
2026-05-19 DLH444 FRA → ATL May 19, 09:10 UTCMay 19, 18:10 UTC9h 0m
2026-05-18 DLH445 ATL → FRA May 18, 20:05 UTCMay 19, 04:20 UTC8h 15m
2026-05-18 DLH444 FRA → ATL May 18, 08:55 UTCMay 18, 17:55 UTC9h 0m
2026-05-17 DLH6EE FRA → LHR May 17, 16:20 UTCMay 17, 16:55 UTC35m
2026-05-17 DLH4MW BER → FRA May 17, 14:35 UTCMay 17, 15:10 UTC35m
2026-05-17 DLH107 MUC → FRA May 17, 12:40 UTCMay 17, 13:10 UTC30m
2026-05-17 DLH7JF FRA → LHR May 17, 10:40 UTCMay 17, 11:15 UTC35m
2026-05-16 DLH445 ATL → FRA May 16, 20:50 UTCMay 17, 04:55 UTC8h 5m
2026-05-16 DLH444 FRA → ATL May 16, 08:46 UTCMay 16, 17:40 UTC8h 55m
2026-05-15 DLH6EE FRA → LHR May 15, 16:45 UTCMay 15, 17:20 UTC35m
2026-05-15 DLH4MW BER → FRA May 15, 14:30 UTCMay 15, 15:10 UTC39m
2026-05-15 DLH107 MUC → FRA May 15, 12:50 UTCMay 15, 13:25 UTC35m
2026-05-15 DLH7JF FRA → LHR May 15, 10:55 UTCMay 15, 11:40 UTC45m
2026-05-14 DLH443 DTW → FRA May 14, 20:25 UTCMay 15, 03:40 UTC7h 15m
2026-05-14 DLH3V FRA → DTW May 14, 09:55 UTCMay 14, 18:00 UTC8h 5m
2026-05-13 DLH445 ATL → FRA May 13, 20:35 UTCMay 14, 04:35 UTC8h 0m
2026-05-13 DLH444 FRA → ATL May 13, 09:05 UTCMay 13, 18:15 UTC9h 10m
2026-05-12 DLH591 NBO → FRA May 12, 10:20 UTCMay 13, 04:40 UTC18h 20m
2026-05-12 DLH591 NBO → FRA May 12, 09:50 UTCMay 13, 04:40 UTC18h 50m
2026-05-11 DLH443 DTW → FRA May 11, 20:30 UTCMay 12, 03:40 UTC7h 10m
2026-05-11 DLH3V FRA → DTW May 11, 09:40 UTCMay 11, 18:00 UTC8h 20m
2026-05-10 DLH6EE FRA → LHR May 10, 16:25 UTCMay 10, 17:05 UTC40m
2026-05-10 DLH4MW BER → FRA May 10, 14:40 UTCMay 10, 15:15 UTC35m

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 2h 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 14 distinct callsigns, including DLH443, DLH3V, DLH445, DLH444, DLH7JF.