Apparatus

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sensors Mode-S transponder

3C4B34

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABYT · BOEING 747-8

Hex
3C4B34
Octal
17045464
Decimal
3,951,412
Country
DE
Tail
D-ABYT
Type
B748
No current signal · last broadcast 5h ago
Flights observed
65
Distinct callsigns
20
Country
DE
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 3C4B34.

Country allocation

The ICAO 24-bit address 3C4B34 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
DLH511 Lufthansa 8 2026-06-15
DLH510 - 7 2026-06-14
DLH499 Lufthansa 6 2026-06-26
DLH717 Lufthansa 5 2026-06-22
DLH403 - 5 2026-07-03
DLH716 Lufthansa 4 2026-06-21
DLH498 Lufthansa 4 2026-06-25
DLH402 - 4 2026-07-03
DLH573 Lufthansa 2 2026-07-01
DLH572 - 2 2026-06-30
DLH507 - 2 2026-06-20
DLH506 Lufthansa 2 2026-06-19
DLH431 Lufthansa 2 2026-06-10
DLH430 Lufthansa 2 2026-06-10
DLH9911 Lufthansa 1 2026-05-15
DLH7K - 1 2026-07-04
DLH463 Lufthansa 1 2026-05-31
DLH462 Lufthansa 1 2026-05-31
DLH457 - 1 2026-06-29
DLH456 Lufthansa 1 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 DLH7K - Jul 4, 12:05 UTCJul 4, 19:00 UTC6h 55m
2026-07-03 DLH403 EWR → FRA Jul 3, 23:30 UTCJul 4, 06:00 UTC6h 30m
2026-07-03 DLH402 FRA → EWR Jul 3, 12:20 UTCJul 3, 20:05 UTC7h 45m
2026-07-02 DLH455 SFO → FRA Jul 2, 22:45 UTCJul 3, 08:25 UTC9h 40m
2026-07-02 DLH454 FRA → SFO Jul 2, 09:00 UTCJul 2, 19:30 UTC10h 30m
2026-07-01 DLH573 JNB → FRA Jul 1, 17:25 UTCJul 2, 03:20 UTC9h 55m
2026-06-30 DLH572 - Jun 30, 20:50 UTCJul 1, 06:45 UTC9h 55m
2026-06-29 DLH457 - Jun 29, 22:49 UTCJun 30, 08:50 UTC10h 1m
2026-06-29 DLH456 FRA → LAX Jun 29, 09:20 UTCJun 29, 20:00 UTC10h 40m
2026-06-28 DLH419 IAD → FRA Jun 28, 22:55 UTCJun 29, 05:54 UTC7h 0m
2026-06-28 DLH3W FRA → IAD Jun 28, 12:25 UTCJun 28, 20:19 UTC7h 55m
2026-06-27 DLH573 JNB → FRA Jun 27, 17:25 UTCJun 28, 03:40 UTC10h 15m
2026-06-26 DLH572 - Jun 26, 20:44 UTCJun 27, 06:25 UTC9h 40m
2026-06-26 DLH499 MEX → FRA Jun 26, 02:34 UTCJun 26, 12:39 UTC10h 5m
2026-06-25 DLH498 FRA → MEX Jun 25, 12:25 UTCJun 25, 23:44 UTC11h 20m
2026-06-24 DLH403 EWR → FRA Jun 24, 23:04 UTCJun 25, 05:35 UTC6h 30m
2026-06-24 DLH402 - Jun 24, 12:40 UTCJun 24, 20:35 UTC7h 55m
2026-06-24 DLH403 - Jun 24, 00:34 UTCJun 24, 05:49 UTC5h 15m
2026-06-23 DLH403 - Jun 23, 23:14 UTCJun 24, 00:30 UTC1h 15m
2026-06-23 DLH402 FRA → EWR Jun 23, 12:20 UTCJun 23, 20:24 UTC8h 5m
2026-06-22 DLH717 HND → FRA Jun 22, 08:40 UTCJun 22, 16:54 UTC8h 15m
2026-06-22 DLH717 HND → FRA Jun 22, 03:14 UTCJun 22, 04:04 UTC50m
2026-06-21 DLH716 FRA → HND Jun 21, 12:49 UTCJun 22, 00:24 UTC11h 35m
2026-06-20 DLH507 - Jun 20, 22:35 UTCJun 21, 09:00 UTC10h 25m
2026-06-19 DLH506 FRA → GRU Jun 19, 20:55 UTCJun 20, 07:54 UTC11h 0m
2026-06-15 DLH511 EZE → FRA Jun 15, 19:45 UTCJun 16, 08:39 UTC12h 55m
2026-06-14 DLH510 FRA → EZE Jun 14, 20:15 UTCJun 15, 09:35 UTC13h 19m
2026-06-13 DLH507 - Jun 13, 21:40 UTCJun 14, 08:25 UTC10h 45m
2026-06-12 DLH506 FRA → GRU Jun 12, 20:35 UTCJun 13, 07:40 UTC11h 4m
2026-06-11 DLH403 EWR → FRA Jun 11, 23:10 UTCJun 12, 05:45 UTC6h 36m
2026-06-11 DLH402 FRA → EWR Jun 11, 12:15 UTCJun 11, 20:00 UTC7h 45m
2026-06-10 DLH431 ORD → FRA Jun 10, 22:15 UTCJun 11, 05:40 UTC7h 25m
2026-06-10 DLH430 FRA → ORD Jun 10, 09:30 UTCJun 10, 17:40 UTC8h 10m
2026-06-09 DLH717 HND → FRA Jun 9, 03:20 UTCJun 9, 17:20 UTC14h 0m
2026-06-08 DLH716 FRA → HND Jun 8, 12:50 UTCJun 9, 00:35 UTC11h 45m
2026-06-07 DLH717 HND → FRA Jun 7, 03:10 UTCJun 7, 17:15 UTC14h 5m
2026-06-06 DLH716 FRA → HND Jun 6, 12:54 UTCJun 7, 00:49 UTC11h 55m
2026-06-05 DLH511 EZE → FRA Jun 5, 19:50 UTCJun 6, 08:15 UTC12h 25m
2026-06-04 DLH510 FRA → EZE Jun 4, 20:20 UTCJun 5, 09:30 UTC13h 10m
2026-06-04 DLH499 MEX → FRA Jun 4, 02:30 UTCJun 4, 12:15 UTC9h 45m
2026-06-03 DLH498 FRA → MEX Jun 3, 12:30 UTCJun 3, 23:30 UTC11h 0m
2026-06-02 DLH511 EZE → FRA Jun 2, 19:45 UTCJun 3, 08:30 UTC12h 45m
2026-06-01 DLH510 FRA → EZE Jun 1, 20:40 UTCJun 2, 09:45 UTC13h 5m
2026-05-31 DLH463 MIA → FRA May 31, 22:45 UTCJun 1, 06:35 UTC7h 50m
2026-05-31 DLH462 FRA → MIA May 31, 10:00 UTCMay 31, 20:05 UTC10h 5m
2026-05-28 DLH717 HND → FRA May 28, 03:55 UTCMay 28, 17:15 UTC13h 20m
2026-05-27 DLH716 FRA → HND May 27, 13:25 UTCMay 28, 01:20 UTC11h 55m
2026-05-26 DLH511 EZE → FRA May 26, 19:45 UTCMay 27, 08:15 UTC12h 30m
2026-05-25 DLH510 FRA → EZE May 25, 20:15 UTCMay 26, 09:59 UTC13h 45m
2026-05-25 DLH499 MEX → FRA May 25, 07:45 UTCMay 25, 13:25 UTC5h 40m

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

Mode-S 3C4B34 frequently asked

What is Mode-S code 3C4B34?
3C4B34 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABYT.
Where is Mode-S 3C4B34 registered?
Mode-S code 3C4B34 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4B34 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4B34, octal 17045464, decimal 3,951,412.
What flights does 3C4B34 operate?
Mode-S 3C4B34 has broadcast 20 distinct callsigns, including DLH511, DLH510, DLH499, DLH717, DLH403.