Apparatus

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sensors Mode-S transponder

3C4A8C

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABTL · BOEING 747-400

Hex
3C4A8C
Octal
17045214
Decimal
3,951,244
Country
DE
Tail
D-ABTL
Type
B744
No current signal · last broadcast 1d ago
Flights observed
137
Distinct callsigns
14
Country
DE
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 3C4A8C.

Country allocation

The ICAO 24-bit address 3C4A8C 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
DLH755 - 15 2026-07-14
DLH754 - 15 2026-07-14
DLH493 - 13 2026-07-10
DLH492 - 13 2026-07-10
DLH441 - 13 2026-07-13
DLH3CF - 13 2026-07-13
DLH7K - 11 2026-06-27
DLH423 - 10 2026-06-27
DLH781 - 8 2026-07-16
DLH780 - 8 2026-07-15
DLH471 - 6 2026-07-07
DLH470 Lufthansa 6 2026-07-07
DLH455 Lufthansa 3 2026-05-21
DLH454 Lufthansa 3 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 DLH781 - Jul 16, 16:05 UTCJul 17, 04:10 UTC12h 5m
2026-07-15 DLH780 - Jul 15, 20:25 UTCJul 16, 08:20 UTC11h 55m
2026-07-14 DLH755 - Jul 14, 21:35 UTCJul 15, 06:45 UTC9h 9m
2026-07-14 DLH754 - Jul 14, 19:25 UTCJul 14, 19:35 UTC10m
2026-07-14 DLH754 - Jul 14, 11:10 UTCJul 14, 18:00 UTC6h 50m
2026-07-13 DLH441 - Jul 13, 21:30 UTCJul 14, 07:00 UTC9h 30m
2026-07-13 DLH3CF - Jul 13, 08:30 UTCJul 13, 19:00 UTC10h 30m
2026-07-12 DLH781 - Jul 12, 16:05 UTCJul 13, 04:20 UTC12h 15m
2026-07-11 DLH780 - Jul 11, 20:10 UTCJul 12, 05:40 UTC9h 30m
2026-07-10 DLH493 YVR → FRA Jul 10, 23:30 UTCJul 11, 08:20 UTC8h 50m
2026-07-10 DLH492 FRA → YVR Jul 10, 11:45 UTCJul 10, 21:15 UTC9h 31m
2026-07-09 DLH441 - Jul 9, 20:55 UTCJul 10, 05:55 UTC9h 0m
2026-07-09 DLH3CF - Jul 9, 08:25 UTCJul 9, 18:30 UTC10h 5m
2026-07-07 DLH471 - Jul 7, 22:55 UTCJul 8, 06:00 UTC7h 5m
2026-07-07 DLH470 FRA → YYZ Jul 7, 12:55 UTCJul 7, 20:20 UTC7h 25m
2026-07-07 DLH493 - Jul 7, 00:00 UTCJul 7, 08:45 UTC8h 45m
2026-07-06 DLH492 FRA → YVR Jul 6, 12:05 UTCJul 6, 21:45 UTC9h 40m
2026-07-05 DLH781 SIN → FRA Jul 5, 16:20 UTCJul 6, 04:45 UTC12h 25m
2026-07-04 DLH780 FRA → SIN Jul 4, 20:10 UTCJul 5, 07:35 UTC11h 25m
2026-07-03 DLH441 - Jul 3, 21:20 UTCJul 4, 06:10 UTC8h 50m
2026-07-03 DLH3CF ARN → FRA Jul 3, 08:55 UTCJul 3, 19:00 UTC10h 5m
2026-07-01 DLH781 SIN → FRA Jul 1, 16:10 UTCJul 2, 04:25 UTC12h 15m
2026-06-30 DLH780 FRA → SIN Jun 30, 20:55 UTCJul 1, 08:25 UTC11h 30m
2026-06-29 DLH755 - Jun 29, 22:44 UTCJun 30, 07:40 UTC8h 56m
2026-06-29 DLH754 FRA → BLR Jun 29, 11:55 UTCJun 29, 20:24 UTC8h 30m
2026-06-29 DLH755 - Jun 29, 01:50 UTCJun 29, 07:34 UTC5h 45m
2026-06-28 DLH755 - Jun 28, 22:45 UTCJun 28, 22:55 UTC10m
2026-06-28 DLH754 FRA → BLR Jun 28, 20:25 UTCJun 28, 20:34 UTC10m
2026-06-28 DLH754 FRA → BLR Jun 28, 11:59 UTCJun 28, 18:59 UTC7h 0m
2026-06-27 DLH423 - Jun 27, 22:29 UTCJun 28, 05:04 UTC6h 35m
2026-06-27 DLH7K FRA → BOS Jun 27, 12:34 UTCJun 27, 19:49 UTC7h 15m
2026-06-26 DLH755 - Jun 26, 22:10 UTCJun 27, 07:10 UTC9h 0m
2026-06-26 DLH754 FRA → BLR Jun 26, 11:30 UTCJun 26, 20:04 UTC8h 35m
2026-06-25 DLH471 YYZ → FRA Jun 25, 23:09 UTCJun 26, 06:00 UTC6h 50m
2026-06-25 DLH470 FRA → YYZ Jun 25, 12:54 UTCJun 25, 20:34 UTC7h 40m
2026-06-24 DLH493 - Jun 24, 23:29 UTCJun 25, 08:45 UTC9h 15m
2026-06-24 DLH492 FRA → YVR Jun 24, 11:50 UTCJun 24, 21:00 UTC9h 10m
2026-06-23 DLH441 - Jun 23, 21:39 UTCJun 24, 06:29 UTC8h 50m
2026-06-23 DLH3CF ARN → FRA Jun 23, 09:05 UTCJun 23, 19:00 UTC9h 55m
2026-06-21 DLH471 YYZ → FRA Jun 21, 23:14 UTCJun 22, 06:10 UTC6h 55m
2026-06-21 DLH470 FRA → YYZ Jun 21, 12:44 UTCJun 21, 20:24 UTC7h 40m
2026-06-21 DLH755 - Jun 21, 01:30 UTCJun 21, 07:25 UTC5h 55m
2026-06-20 DLH755 - Jun 20, 22:14 UTCJun 20, 22:30 UTC15m
2026-06-20 DLH754 FRA → BLR Jun 20, 19:44 UTCJun 20, 20:05 UTC20m
2026-06-20 DLH754 FRA → BLR Jun 20, 11:30 UTCJun 20, 18:24 UTC6h 55m
2026-06-20 DLH755 - Jun 20, 01:19 UTCJun 20, 07:14 UTC5h 55m
2026-06-19 DLH755 - Jun 19, 22:19 UTCJun 19, 22:30 UTC10m
2026-06-19 DLH754 FRA → BLR Jun 19, 20:14 UTCJun 19, 20:24 UTC10m
2026-06-19 DLH754 FRA → BLR Jun 19, 11:54 UTCJun 19, 18:44 UTC6h 50m
2026-06-18 DLH441 - Jun 18, 21:15 UTCJun 19, 06:14 UTC8h 59m

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

Mode-S 3C4A8C frequently asked

What is Mode-S code 3C4A8C?
3C4A8C is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABTL.
Where is Mode-S 3C4A8C registered?
Mode-S code 3C4A8C is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A8C broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A8C, octal 17045214, decimal 3,951,244.
What flights does 3C4A8C operate?
Mode-S 3C4A8C has broadcast 14 distinct callsigns, including DLH755, DLH754, DLH493, DLH492, DLH441.