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sensors Mode-S transponder

3C4A04

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3C4A04
Octal
17045004
Decimal
3,951,108
Country
DE
Tail
D-ABPD
Type
B789
Broadcasting now · callsign DLH3V · 38,000 ft
Flights observed
169
Distinct callsigns
20
Country
DE
Last broadcast
20m ago

Current position

3C4A04 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C4A04 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
DLH591 - 25 2026-07-18
DLH590 - 25 2026-07-17
DLH444 - 19 2026-07-13
DLH445 - 17 2026-07-13
DLH3V - 12 2026-07-18
DLH7JF - 11 2026-07-15
DLH443 - 11 2026-07-08
DLH107 - 11 2026-07-15
DLH6EE - 10 2026-06-25
DLH4MW Lufthansa 10 2026-06-25
DLH753 Lufthansa 3 2026-06-05
DLH569 Lufthansa 3 2026-05-17
DLH451 Lufthansa 2 2026-06-17
DLH450 Lufthansa 2 2026-06-16
DLH9XK - 1 2026-07-15
DLH761 - 1 2026-07-09
DLH760 - 1 2026-07-09
DLH752 Lufthansa 1 2026-05-19
DLH4T9 - 1 2026-06-15
DLH469 - 1 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 DLH3V - Jul 18, 09:50 UTCJul 18, 17:00 UTC7h 10m
2026-07-18 DLH591 - Jul 18, 02:14 UTCJul 18, 06:00 UTC3h 46m
2026-07-17 DLH590 - Jul 17, 09:55 UTCJul 17, 13:00 UTC3h 5m
2026-07-15 DLH107 - Jul 15, 12:20 UTCJul 15, 13:00 UTC40m
2026-07-15 DLH7JF - Jul 15, 10:35 UTCJul 15, 11:10 UTC35m
2026-07-15 DLH2VU - Jul 15, 08:20 UTCJul 15, 09:10 UTC50m
2026-07-15 DLH9XK - Jul 15, 06:30 UTCJul 15, 07:10 UTC40m
2026-07-13 DLH445 ATL → FRA Jul 13, 20:45 UTCJul 14, 05:00 UTC8h 15m
2026-07-13 DLH444 FRA → ATL Jul 13, 08:45 UTCJul 13, 17:40 UTC8h 55m
2026-07-12 DLH591 - Jul 12, 23:55 UTCJul 13, 03:50 UTC3h 55m
2026-07-12 DLH590 - Jul 12, 09:45 UTCJul 12, 12:55 UTC3h 10m
2026-07-11 DLH591 - Jul 11, 23:55 UTCJul 12, 03:45 UTC3h 50m
2026-07-11 DLH590 - Jul 11, 10:00 UTCJul 11, 13:05 UTC3h 5m
2026-07-11 DLH591 - Jul 11, 01:25 UTCJul 11, 04:10 UTC2h 45m
2026-07-10 DLH590 - Jul 10, 10:15 UTCJul 10, 13:20 UTC3h 5m
2026-07-09 DLH761 - Jul 9, 22:15 UTCJul 10, 06:15 UTC8h 0m
2026-07-09 DLH760 FRA → DEL Jul 9, 12:05 UTCJul 9, 19:05 UTC7h 0m
2026-07-08 DLH443 - Jul 8, 20:10 UTCJul 9, 03:35 UTC7h 25m
2026-07-08 DLH3V FRA → DTW Jul 8, 09:25 UTCJul 8, 17:35 UTC8h 10m
2026-07-07 DLH591 - Jul 7, 23:55 UTCJul 8, 03:55 UTC4h 0m
2026-07-07 DLH590 FRA → NBO Jul 7, 10:00 UTCJul 7, 12:20 UTC2h 20m
2026-07-06 DLH591 - Jul 6, 23:50 UTCJul 7, 03:50 UTC4h 0m
2026-07-06 DLH590 FRA → NBO Jul 6, 10:00 UTCJul 6, 12:25 UTC2h 25m
2026-07-05 DLH591 - Jul 5, 23:55 UTCJul 6, 03:55 UTC4h 0m
2026-07-05 DLH590 FRA → NBO Jul 5, 09:45 UTCJul 5, 12:10 UTC2h 25m
2026-07-04 DLH443 - Jul 4, 20:20 UTCJul 5, 03:25 UTC7h 5m
2026-07-04 DLH3V FRA → DTW Jul 4, 09:45 UTCJul 4, 18:10 UTC8h 25m
2026-06-28 DLH591 - Jun 28, 00:09 UTCJun 28, 03:59 UTC3h 50m
2026-06-27 DLH590 FRA → NBO Jun 27, 10:00 UTCJun 27, 13:09 UTC3h 10m
2026-06-27 DLH591 - Jun 27, 00:20 UTCJun 27, 04:15 UTC3h 55m
2026-06-26 DLH590 FRA → NBO Jun 26, 10:25 UTCJun 26, 13:34 UTC3h 10m
2026-06-25 DLH6EE - Jun 25, 16:24 UTCJun 25, 17:05 UTC40m
2026-06-25 DLH4MW BER → FRA Jun 25, 14:29 UTCJun 25, 15:04 UTC35m
2026-06-25 DLH107 MUC → FRA Jun 25, 12:30 UTCJun 25, 13:09 UTC40m
2026-06-25 DLH7JF FRA → MUC Jun 25, 10:45 UTCJun 25, 11:15 UTC30m
2026-06-24 DLH445 - Jun 24, 20:14 UTCJun 25, 03:59 UTC7h 45m
2026-06-24 DLH444 FRA → ATL Jun 24, 08:49 UTCJun 24, 17:45 UTC8h 55m
2026-06-23 DLH445 ATL → FRA Jun 23, 21:34 UTCJun 24, 05:20 UTC7h 45m
2026-06-23 DLH444 FRA → ATL Jun 23, 09:54 UTCJun 23, 19:15 UTC9h 20m
2026-06-22 DLH6EE - Jun 22, 16:50 UTCJun 22, 17:34 UTC45m
2026-06-22 DLH4MW BER → FRA Jun 22, 15:10 UTCJun 22, 15:50 UTC40m
2026-06-22 DLH107 - Jun 22, 12:30 UTCJun 22, 13:05 UTC35m
2026-06-22 DLH7JF FRA → MUC Jun 22, 10:49 UTCJun 22, 11:19 UTC30m
2026-06-21 DLH445 ATL → FRA Jun 21, 20:14 UTCJun 22, 04:04 UTC7h 50m
2026-06-21 DLH444 FRA → ATL Jun 21, 08:49 UTCJun 21, 16:59 UTC8h 10m
2026-06-20 DLH445 ATL → FRA Jun 20, 20:20 UTCJun 21, 04:10 UTC7h 50m
2026-06-20 DLH444 FRA → ATL Jun 20, 08:49 UTCJun 20, 17:44 UTC8h 55m
2026-06-20 DLH591 - Jun 20, 01:14 UTCJun 20, 03:59 UTC2h 45m
2026-06-19 DLH590 FRA → NBO Jun 19, 09:55 UTCJun 19, 12:59 UTC3h 5m
2026-06-18 DLH445 ATL → FRA Jun 18, 22:00 UTCJun 19, 06:14 UTC8h 14m

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

Mode-S 3C4A04 frequently asked

What is Mode-S code 3C4A04?
3C4A04 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABPD.
Where is Mode-S 3C4A04 registered?
Mode-S code 3C4A04 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A04 broadcasting right now?
Yes. Mode-S 3C4A04 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A04, octal 17045004, decimal 3,951,108.
What flights does 3C4A04 operate?
Mode-S 3C4A04 has broadcast 20 distinct callsigns, including DLH591, DLH590, DLH444, DLH445, DLH3V.