Apparatus

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sensors Mode-S transponder

3C4AD8

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABVX · BOEING 747-400

Hex
3C4AD8
Octal
17045330
Decimal
3,951,320
Country
DE
Tail
D-ABVX
Type
B744
No current signal · last broadcast 1h ago
Flights observed
148
Distinct callsigns
15
Country
DE
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 3C4AD8.

Country allocation

The ICAO 24-bit address 3C4AD8 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 15 distinct

Callsign Airline Flights Last seen
DLH754 - 18 2026-07-16
DLH781 - 15 2026-07-21
DLH780 - 15 2026-07-20
DLH441 - 13 2026-07-10
DLH755 - 12 2026-07-16
DLH3CF - 12 2026-07-10
DLH493 Lufthansa 11 2026-07-19
DLH492 Lufthansa 11 2026-07-22
DLH423 - 9 2026-06-29
DLH7K - 8 2026-06-29
DLH471 - 6 2026-07-05
DLH470 Lufthansa 6 2026-07-05
DLH454 Lufthansa 6 2026-05-16
DLH455 Lufthansa 5 2026-05-16
DLH4T3 Lufthansa 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 DLH492 FRA → YVR Jul 22, 12:05 UTCJul 22, 20:00 UTC7h 55m
2026-07-21 DLH781 - Jul 21, 16:05 UTCJul 22, 04:20 UTC12h 15m
2026-07-20 DLH780 - Jul 20, 20:30 UTCJul 21, 07:50 UTC11h 19m
2026-07-19 DLH493 YVR → FRA Jul 19, 23:35 UTCJul 20, 08:30 UTC8h 55m
2026-07-19 DLH492 FRA → YVR Jul 19, 11:55 UTCJul 19, 21:30 UTC9h 35m
2026-07-18 DLH493 - Jul 18, 23:45 UTCJul 19, 08:30 UTC8h 45m
2026-07-18 DLH492 - Jul 18, 11:50 UTCJul 18, 21:30 UTC9h 40m
2026-07-16 DLH755 - Jul 16, 22:55 UTCJul 17, 07:00 UTC8h 5m
2026-07-16 DLH754 - Jul 16, 11:20 UTCJul 16, 18:19 UTC7h 0m
2026-07-15 DLH755 - Jul 15, 22:05 UTCJul 16, 07:10 UTC9h 5m
2026-07-15 DLH754 - Jul 15, 19:45 UTCJul 15, 19:55 UTC10m
2026-07-15 DLH754 - Jul 15, 11:25 UTCJul 15, 18:20 UTC6h 55m
2026-07-14 DLH781 - Jul 14, 16:10 UTCJul 15, 04:25 UTC12h 14m
2026-07-13 DLH780 - Jul 13, 20:20 UTCJul 14, 07:40 UTC11h 20m
2026-07-12 DLH493 - Jul 12, 23:45 UTCJul 13, 08:40 UTC8h 55m
2026-07-12 DLH492 FRA → YVR Jul 12, 11:50 UTCJul 12, 21:30 UTC9h 40m
2026-07-11 DLH755 - Jul 11, 22:30 UTCJul 12, 07:31 UTC9h 0m
2026-07-11 DLH754 - Jul 11, 20:20 UTCJul 11, 20:30 UTC10m
2026-07-11 DLH754 - Jul 11, 12:15 UTCJul 11, 19:00 UTC6h 45m
2026-07-10 DLH441 - Jul 10, 21:35 UTCJul 11, 06:35 UTC9h 0m
2026-07-10 DLH3CF - Jul 10, 08:35 UTCJul 10, 19:05 UTC10h 30m
2026-07-09 DLH781 - Jul 9, 16:10 UTCJul 10, 04:25 UTC12h 15m
2026-07-08 DLH780 - Jul 8, 20:15 UTCJul 9, 07:55 UTC11h 40m
2026-07-05 DLH471 YYZ → FRA Jul 5, 22:45 UTCJul 6, 05:25 UTC6h 40m
2026-07-05 DLH470 FRA → YYZ Jul 5, 12:30 UTCJul 5, 20:15 UTC7h 45m
2026-07-04 DLH493 YVR → FRA Jul 4, 23:40 UTCJul 5, 08:25 UTC8h 45m
2026-07-04 DLH492 FRA → YVR Jul 4, 11:45 UTCJul 4, 21:25 UTC9h 40m
2026-07-03 DLH471 YYZ → FRA Jul 3, 23:40 UTCJul 4, 06:20 UTC6h 40m
2026-07-03 DLH470 FRA → YYZ Jul 3, 12:55 UTCJul 3, 20:55 UTC8h 0m
2026-07-02 DLH471 YYZ → FRA Jul 2, 23:45 UTCJul 3, 06:15 UTC6h 30m
2026-07-02 DLH470 FRA → YYZ Jul 2, 13:10 UTCJul 2, 21:05 UTC7h 55m
2026-07-02 DLH493 YVR → FRA Jul 2, 00:40 UTCJul 2, 09:30 UTC8h 50m
2026-07-01 DLH492 FRA → YVR Jul 1, 12:45 UTCJul 1, 22:15 UTC9h 30m
2026-06-30 DLH441 - Jun 30, 21:25 UTCJul 1, 06:35 UTC9h 10m
2026-06-30 DLH3CF ARN → FRA Jun 30, 09:00 UTCJun 30, 18:45 UTC9h 45m
2026-06-29 DLH423 BOS → FRA Jun 29, 22:55 UTCJun 30, 05:00 UTC6h 6m
2026-06-29 DLH7K FRA → BOS Jun 29, 12:39 UTCJun 29, 19:54 UTC7h 15m
2026-06-29 DLH781 SIN → FRA Jun 29, 06:24 UTCJun 29, 06:59 UTC35m
2026-06-28 DLH781 SIN → FRA Jun 28, 16:14 UTCJun 29, 05:00 UTC12h 45m
2026-06-27 DLH780 FRA → SIN Jun 27, 20:44 UTCJun 28, 08:29 UTC11h 45m
2026-06-26 DLH423 BOS → FRA Jun 26, 23:34 UTCJun 27, 05:44 UTC6h 10m
2026-06-26 DLH7K - Jun 26, 13:30 UTCJun 26, 20:44 UTC7h 15m
2026-06-25 DLH755 - Jun 25, 22:45 UTCJun 26, 07:39 UTC8h 55m
2026-06-25 DLH754 FRA → BLR Jun 25, 20:25 UTCJun 25, 20:34 UTC10m
2026-06-25 DLH754 FRA → BLR Jun 25, 12:10 UTCJun 25, 19:05 UTC6h 55m
2026-06-24 DLH471 YYZ → FRA Jun 24, 23:29 UTCJun 25, 06:14 UTC6h 45m
2026-06-24 DLH470 FRA → YYZ Jun 24, 13:00 UTCJun 24, 20:40 UTC7h 40m
2026-06-23 DLH471 YYZ → FRA Jun 23, 23:44 UTCJun 24, 06:25 UTC6h 40m
2026-06-23 DLH470 FRA → YYZ Jun 23, 13:05 UTCJun 23, 21:10 UTC8h 5m
2026-06-23 DLH493 - Jun 23, 00:54 UTCJun 23, 08:50 UTC7h 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-ABVX page for operator, model, and routing details .

Mode-S 3C4AD8 frequently asked

What is Mode-S code 3C4AD8?
3C4AD8 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABVX.
Where is Mode-S 3C4AD8 registered?
Mode-S code 3C4AD8 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4AD8 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 3C4AD8, octal 17045330, decimal 3,951,320.
What flights does 3C4AD8 operate?
Mode-S 3C4AD8 has broadcast 15 distinct callsigns, including DLH754, DLH781, DLH780, DLH441, DLH755.