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 23d ago
Flights observed
97
Distinct callsigns
20
Country
DE
Last broadcast
23d 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 10 2026-07-25
DLH510 Lufthansa 9 2026-07-24
DLH717 - 6 2026-07-11
DLH716 Lufthansa 6 2026-07-26
DLH499 Lufthansa 6 2026-06-26
DLH403 Lufthansa 6 2026-07-16
DLH402 - 5 2026-07-16
DLH507 Lufthansa 4 2026-07-19
DLH506 - 4 2026-07-18
DLH498 Lufthansa 4 2026-06-25
DLH463 Lufthansa 4 2026-07-23
DLH462 Lufthansa 4 2026-07-23
DLH7K - 3 2026-07-20
DLH573 - 3 2026-07-14
DLH572 - 3 2026-07-13
DLH457 Lufthansa 3 2026-07-17
DLH456 - 3 2026-07-17
DLH423 - 3 2026-07-20
DLH455 - 2 2026-07-15
DLH454 - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DLH716 FRA → HND Jul 26, 12:40 UTCJul 26, 23:00 UTC10h 20m
2026-07-25 DLH511 EZE → FRA Jul 25, 19:55 UTCJul 26, 08:45 UTC12h 51m
2026-07-24 DLH510 FRA → EZE Jul 24, 20:30 UTCJul 25, 09:40 UTC13h 10m
2026-07-23 DLH463 MIA → FRA Jul 23, 21:40 UTCJul 24, 06:05 UTC8h 25m
2026-07-23 DLH462 FRA → MIA Jul 23, 09:25 UTCJul 23, 18:05 UTC8h 40m
2026-07-22 DLH463 MIA → FRA Jul 22, 21:40 UTCJul 23, 06:10 UTC8h 30m
2026-07-22 DLH462 FRA → MIA Jul 22, 11:10 UTCJul 22, 18:50 UTC7h 40m
2026-07-21 DLH463 MIA → FRA Jul 21, 21:15 UTCJul 22, 05:25 UTC8h 10m
2026-07-21 DLH462 - Jul 21, 09:45 UTCJul 21, 18:35 UTC8h 50m
2026-07-20 DLH423 BOS → FRA Jul 20, 22:20 UTCJul 21, 04:40 UTC6h 19m
2026-07-20 DLH7K FRA → BOS Jul 20, 12:05 UTCJul 20, 19:15 UTC7h 10m
2026-07-19 DLH507 GRU → FRA Jul 19, 21:30 UTCJul 20, 08:10 UTC10h 40m
2026-07-18 DLH506 - Jul 18, 21:05 UTCJul 19, 08:25 UTC11h 20m
2026-07-17 DLH457 LAX → FRA Jul 17, 23:00 UTCJul 18, 09:05 UTC10h 6m
2026-07-17 DLH456 - Jul 17, 09:45 UTCJul 17, 20:40 UTC10h 55m
2026-07-16 DLH403 EWR → FRA Jul 16, 23:10 UTCJul 17, 06:00 UTC6h 50m
2026-07-16 DLH402 FRA → EWR Jul 16, 12:00 UTCJul 16, 19:35 UTC7h 35m
2026-07-15 DLH455 SFO → FRA Jul 15, 22:45 UTCJul 16, 08:30 UTC9h 45m
2026-07-15 DLH454 - Jul 15, 09:00 UTCJul 15, 19:55 UTC10h 55m
2026-07-14 DLH573 WKF → FRA Jul 14, 17:25 UTCJul 15, 03:30 UTC10h 4m
2026-07-13 DLH572 - Jul 13, 20:40 UTCJul 14, 06:10 UTC9h 30m
2026-07-12 DLH507 - Jul 12, 21:45 UTCJul 13, 08:20 UTC10h 35m
2026-07-11 DLH506 - Jul 11, 20:25 UTCJul 12, 07:45 UTC11h 20m
2026-07-11 DLH717 HND → FRA Jul 11, 03:15 UTCJul 11, 16:50 UTC13h 35m
2026-07-10 DLH716 - Jul 10, 12:45 UTCJul 11, 00:25 UTC11h 40m
2026-07-09 DLH457 - Jul 9, 22:40 UTCJul 10, 08:50 UTC10h 10m
2026-07-09 DLH456 - Jul 9, 09:25 UTCJul 9, 20:15 UTC10h 50m
2026-07-08 DLH423 BNH → FRA Jul 8, 22:30 UTCJul 9, 05:00 UTC6h 30m
2026-07-08 DLH7K FRA → BOS Jul 8, 12:00 UTCJul 8, 19:10 UTC7h 10m
2026-07-07 DLH511 EZE → FRA Jul 7, 19:45 UTCJul 8, 08:30 UTC12h 45m
2026-07-06 DLH510 FRA → EZE Jul 6, 20:20 UTCJul 7, 09:20 UTC13h 0m
2026-07-04 DLH423 - Jul 4, 22:40 UTCJul 5, 04:55 UTC6h 15m
2026-07-04 DLH7K FRA → BOS Jul 4, 12:05 UTCJul 4, 19:45 UTC7h 40m
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

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 23d 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, DLH717, DLH716, DLH499.