Apparatus

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sensors Mode-S transponder

3C4AD5

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABVU · BOEING 747-400

Hex
3C4AD5
Octal
17045325
Decimal
3,951,317
Country
DE
Tail
D-ABVU
Type
B744
No current signal · last broadcast 3h ago
Flights observed
162
Distinct callsigns
16
Country
DE
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 3C4AD5.

Country allocation

The ICAO 24-bit address 3C4AD5 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 16 distinct

Callsign Airline Flights Last seen
DLH755 - 35 2026-06-19
DLH754 Lufthansa 31 2026-06-18
DLH781 - 15 2026-07-13
DLH780 - 12 2026-07-12
DLH493 - 10 2026-07-12
DLH492 - 10 2026-07-11
DLH423 - 10 2026-06-24
DLH7K - 9 2026-06-24
DLH441 - 7 2026-07-06
DLH3CF Lufthansa 7 2026-07-06
DLH780D Lufthansa 3 2026-04-18
DLH471 - 3 2026-07-10
DLH470 - 3 2026-07-10
DLH455 Lufthansa 3 2026-05-29
DLH454 Lufthansa 3 2026-05-29
DLH781D Lufthansa 1 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DLH781 - Jul 13, 16:15 UTCJul 14, 04:30 UTC12h 15m
2026-07-12 DLH780 - Jul 12, 20:35 UTCJul 13, 07:45 UTC11h 10m
2026-07-12 DLH493 YVR → FRA Jul 12, 00:15 UTCJul 12, 09:00 UTC8h 45m
2026-07-11 DLH492 FRA → YVR Jul 11, 12:15 UTCJul 11, 21:40 UTC9h 25m
2026-07-10 DLH471 YYZ → FRA Jul 10, 23:00 UTCJul 11, 05:50 UTC6h 50m
2026-07-10 DLH470 FRA → YYZ Jul 10, 12:45 UTCJul 10, 20:45 UTC8h 0m
2026-07-08 DLH781 - Jul 8, 16:15 UTCJul 9, 04:10 UTC11h 55m
2026-07-07 DLH780 FRA → SIN Jul 7, 20:15 UTCJul 8, 07:55 UTC11h 40m
2026-07-06 DLH441 - Jul 6, 21:05 UTCJul 7, 06:00 UTC8h 55m
2026-07-06 DLH3CF ARN → FRA Jul 6, 08:40 UTCJul 6, 18:45 UTC10h 5m
2026-07-04 DLH781 SIN → FRA Jul 4, 16:15 UTCJul 5, 04:30 UTC12h 15m
2026-07-03 DLH780 FRA → SIN Jul 3, 20:15 UTCJul 4, 07:40 UTC11h 25m
2026-07-02 DLH781 SIN → FRA Jul 2, 16:15 UTCJul 3, 04:25 UTC12h 10m
2026-07-01 DLH780 FRA → SIN Jul 1, 20:35 UTCJul 2, 08:20 UTC11h 45m
2026-06-24 DLH423 BOS → FRA Jun 24, 22:35 UTCJun 25, 04:40 UTC6h 5m
2026-06-24 DLH7K FRA → BOS Jun 24, 12:40 UTCJun 24, 20:05 UTC7h 25m
2026-06-23 DLH423 BOS → FRA Jun 23, 22:44 UTCJun 24, 04:55 UTC6h 10m
2026-06-23 DLH7K FRA → BOS Jun 23, 12:09 UTCJun 23, 19:44 UTC7h 35m
2026-06-22 DLH781 SIN → FRA Jun 22, 16:24 UTCJun 23, 04:39 UTC12h 15m
2026-06-21 DLH780 FRA → SIN Jun 21, 20:34 UTCJun 22, 08:10 UTC11h 35m
2026-06-21 DLH493 - Jun 21, 00:45 UTCJun 21, 09:35 UTC8h 50m
2026-06-20 DLH492 FRA → YVR Jun 20, 13:19 UTCJun 20, 22:25 UTC9h 5m
2026-06-19 DLH423 BOS → FRA Jun 19, 23:09 UTCJun 20, 05:19 UTC6h 10m
2026-06-19 DLH7K FRA → BOS Jun 19, 12:29 UTCJun 19, 19:45 UTC7h 15m
2026-06-19 DLH755 - Jun 19, 01:15 UTCJun 19, 07:29 UTC6h 15m
2026-06-18 DLH755 - Jun 18, 22:10 UTCJun 18, 22:25 UTC15m
2026-06-18 DLH754 FRA → BLR Jun 18, 19:35 UTCJun 18, 19:45 UTC10m
2026-06-18 DLH754 FRA → BLR Jun 18, 11:25 UTCJun 18, 18:10 UTC6h 45m
2026-06-17 DLH755 - Jun 17, 23:30 UTCJun 18, 08:00 UTC8h 30m
2026-06-17 DLH754 FRA → BLR Jun 17, 12:15 UTCJun 17, 20:50 UTC8h 35m
2026-06-16 DLH471 YYZ → FRA Jun 16, 23:50 UTCJun 17, 06:35 UTC6h 45m
2026-06-16 DLH470 FRA → YYZ Jun 16, 13:50 UTCJun 16, 21:15 UTC7h 26m
2026-06-16 DLH493 - Jun 16, 00:00 UTCJun 16, 08:55 UTC8h 55m
2026-06-15 DLH492 FRA → YVR Jun 15, 11:45 UTCJun 15, 21:09 UTC9h 25m
2026-06-14 DLH755 - Jun 14, 21:45 UTCJun 15, 07:10 UTC9h 24m
2026-06-14 DLH754 FRA → BLR Jun 14, 19:25 UTCJun 14, 19:40 UTC15m
2026-06-14 DLH754 FRA → BLR Jun 14, 11:15 UTCJun 14, 18:00 UTC6h 45m
2026-06-13 DLH441 - Jun 13, 21:30 UTCJun 14, 06:25 UTC8h 55m
2026-06-13 DLH3CF ARN → FRA Jun 13, 08:40 UTCJun 13, 18:50 UTC10h 10m
2026-06-12 DLH781 SIN → FRA Jun 12, 16:15 UTCJun 13, 04:25 UTC12h 10m
2026-06-11 DLH780 FRA → SIN Jun 11, 20:25 UTCJun 12, 08:00 UTC11h 35m
2026-06-07 DLH781 SIN → FRA Jun 7, 16:10 UTCJun 8, 04:30 UTC12h 20m
2026-06-06 DLH780 FRA → SIN Jun 6, 20:25 UTCJun 7, 07:45 UTC11h 20m
2026-06-05 DLH471 YYZ → FRA Jun 5, 22:45 UTCJun 6, 05:30 UTC6h 45m
2026-06-05 DLH470 FRA → YYZ Jun 5, 12:30 UTCJun 5, 20:00 UTC7h 30m
2026-06-04 DLH493 YVR → FRA Jun 4, 23:30 UTCJun 5, 08:40 UTC9h 10m
2026-06-04 DLH492 FRA → YVR Jun 4, 12:00 UTCJun 4, 21:10 UTC9h 10m
2026-06-03 DLH441 IAH → FRA Jun 3, 21:45 UTCJun 4, 06:40 UTC8h 55m
2026-06-03 DLH3CF ARN → FRA Jun 3, 08:55 UTCJun 3, 18:50 UTC9h 55m
2026-06-01 DLH493 YVR → FRA Jun 1, 23:45 UTCJun 2, 08:40 UTC8h 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-ABVU page for operator, model, and routing details .

Mode-S 3C4AD5 frequently asked

What is Mode-S code 3C4AD5?
3C4AD5 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABVU.
Where is Mode-S 3C4AD5 registered?
Mode-S code 3C4AD5 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4AD5 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4AD5, octal 17045325, decimal 3,951,317.
What flights does 3C4AD5 operate?
Mode-S 3C4AD5 has broadcast 16 distinct callsigns, including DLH755, DLH754, DLH781, DLH780, DLH493.