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sensors Mode-S transponder

3C4A09

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-ABPI · BOEING 787-9 Dreamliner

Hex
3C4A09
Octal
17045011
Decimal
3,951,113
Country
DE
Tail
D-ABPI
Type
B789
No current signal · last broadcast 57m ago
Flights observed
139
Distinct callsigns
20
Country
DE
Last broadcast
57m ago

Last known position

Most recent position reported by Mode-S 3C4A09.

Country allocation

The ICAO 24-bit address 3C4A09 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
DLH797 Lufthansa 17 2026-06-18
DLH500 - 13 2026-07-14
DLH501 - 12 2026-07-12
DLH796 Lufthansa 11 2026-06-17
DLH753 Lufthansa 10 2026-06-03
DLH543 - 9 2026-07-14
DLH542 - 9 2026-07-13
DLH761 - 8 2026-06-29
DLH760 Lufthansa 8 2026-06-29
DLH752 Lufthansa 7 2026-05-03
DLH729 - 7 2026-06-17
DLH479 - 5 2026-07-10
DLH728 - 4 2026-06-16
DLH471 Lufthansa 4 2026-05-30
DLH470 Lufthansa 4 2026-05-30
DLH478 - 3 2026-07-09
DLH569 - 2 2026-06-30
DLH451 - 2 2026-07-11
DLH450 - 2 2026-07-10
DLH469 - 1 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DLH500 - Jul 14, 20:45 UTCJul 14, 22:15 UTC1h 30m
2026-07-14 DLH543 BOG → FRA Jul 14, 05:00 UTCJul 14, 15:05 UTC10h 5m
2026-07-13 DLH542 FRA → BOG Jul 13, 13:40 UTCJul 14, 00:00 UTC10h 20m
2026-07-12 DLH501 - Jul 12, 19:25 UTCJul 13, 05:45 UTC10h 20m
2026-07-11 DLH500 FRA → GIG Jul 11, 20:45 UTCJul 12, 08:05 UTC11h 20m
2026-07-11 DLH451 - Jul 11, 01:50 UTCJul 11, 12:05 UTC10h 15m
2026-07-10 DLH450 - Jul 10, 12:25 UTCJul 10, 23:35 UTC11h 10m
2026-07-10 DLH479 - Jul 10, 01:00 UTCJul 10, 06:30 UTC5h 30m
2026-07-10 DLH479 - Jul 10, 00:15 UTCJul 10, 00:55 UTC40m
2026-07-09 DLH478 - Jul 9, 13:40 UTCJul 9, 21:05 UTC7h 25m
2026-07-08 DLH501 - Jul 8, 19:25 UTCJul 9, 06:15 UTC10h 50m
2026-07-07 DLH500 FRA → GIG Jul 7, 20:40 UTCJul 8, 07:45 UTC11h 5m
2026-07-07 DLH451 - Jul 7, 02:00 UTCJul 7, 12:10 UTC10h 10m
2026-07-06 DLH450 - Jul 6, 12:15 UTCJul 6, 23:25 UTC11h 10m
2026-07-04 DLH479 YUL → FRA Jul 4, 22:55 UTCJul 5, 05:10 UTC6h 15m
2026-07-04 DLH478 FRA → YUL Jul 4, 13:20 UTCJul 4, 20:35 UTC7h 15m
2026-07-04 DLH501 - Jul 4, 03:20 UTCJul 4, 06:15 UTC2h 55m
2026-07-03 DLH501 - Jul 3, 19:35 UTCJul 4, 03:15 UTC7h 40m
2026-07-02 DLH500 - Jul 2, 20:40 UTCJul 3, 07:15 UTC10h 35m
2026-07-02 DLH543 BOG → FRA Jul 2, 05:45 UTCJul 2, 14:55 UTC9h 10m
2026-07-01 DLH542 - Jul 1, 13:45 UTCJul 2, 06:55 UTC17h 10m
2026-06-30 DLH569 FRA → FRA Jun 30, 10:55 UTCJul 1, 04:45 UTC17h 50m
2026-06-29 DLH761 DEL → FRA Jun 29, 22:49 UTCJun 30, 06:35 UTC7h 46m
2026-06-29 DLH760 FRA → DEL Jun 29, 13:30 UTCJun 29, 20:44 UTC7h 15m
2026-06-28 DLH501 - Jun 28, 19:34 UTCJun 29, 06:29 UTC10h 55m
2026-06-27 DLH500 - Jun 27, 20:49 UTCJun 28, 06:49 UTC10h 0m
2026-06-27 DLH543 BOG → FRA Jun 27, 06:19 UTCJun 27, 15:10 UTC8h 50m
2026-06-26 DLH543 BOG → FRA Jun 26, 16:20 UTCJun 27, 15:10 UTC22h 50m
2026-06-26 DLH542 - Jun 26, 14:50 UTCJun 27, 14:14 UTC23h 25m
2026-06-25 DLH569 - Jun 25, 10:20 UTCJun 26, 04:59 UTC18h 40m
2026-06-23 DLH479 YUL → FRA Jun 23, 23:24 UTCJun 24, 04:59 UTC5h 35m
2026-06-23 DLH479 YUL → FRA Jun 23, 22:34 UTCJun 23, 23:19 UTC45m
2026-06-23 DLH478 FRA → YUL Jun 23, 13:00 UTCJun 23, 20:10 UTC7h 10m
2026-06-22 DLH469 AUS → FRA Jun 22, 22:05 UTCJun 23, 06:59 UTC8h 55m
2026-06-22 DLH468 FRA → AUS Jun 22, 09:00 UTCJun 22, 19:14 UTC10h 15m
2026-06-20 DLH761 DEL → FRA Jun 20, 22:05 UTCJun 21, 05:59 UTC7h 55m
2026-06-20 DLH760 FRA → DEL Jun 20, 13:04 UTCJun 20, 20:00 UTC6h 55m
2026-06-19 DLH761 - Jun 19, 21:49 UTCJun 20, 05:39 UTC7h 50m
2026-06-19 DLH760 FRA → DEL Jun 19, 12:09 UTCJun 19, 19:09 UTC7h 0m
2026-06-18 DLH797 HKG → FRA Jun 18, 18:45 UTCJun 19, 04:25 UTC9h 39m
2026-06-18 DLH797 HKG → FRA Jun 18, 16:05 UTCJun 18, 16:20 UTC15m
2026-06-17 DLH796 FRA → HKG Jun 17, 19:55 UTCJun 18, 07:10 UTC11h 15m
2026-06-17 DLH729 - Jun 17, 12:00 UTCJun 17, 16:25 UTC4h 25m
2026-06-16 DLH729 - Jun 16, 17:15 UTCJun 17, 16:15 UTC23h 1m
2026-06-16 DLH728 - Jun 16, 14:20 UTCJun 17, 13:20 UTC23h 1m
2026-06-16 DLH728 - Jun 16, 14:00 UTCJun 17, 12:15 UTC22h 16m
2026-06-14 DLH501 - Jun 14, 19:35 UTCJun 15, 06:15 UTC10h 39m
2026-06-13 DLH500 MUC → GIG Jun 13, 20:50 UTCJun 14, 07:55 UTC11h 5m
2026-06-13 DLH729 PVG → FRA Jun 13, 05:30 UTCJun 13, 17:00 UTC11h 30m
2026-06-12 DLH729 PVG → FRA Jun 12, 18:30 UTCJun 13, 17:00 UTC22h 29m

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

Mode-S 3C4A09 frequently asked

What is Mode-S code 3C4A09?
3C4A09 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABPI.
Where is Mode-S 3C4A09 registered?
Mode-S code 3C4A09 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A09 broadcasting right now?
No active broadcast right now. Last signal was 57m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A09, octal 17045011, decimal 3,951,113.
What flights does 3C4A09 operate?
Mode-S 3C4A09 has broadcast 20 distinct callsigns, including DLH797, DLH500, DLH501, DLH796, DLH753.