Apparatus

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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 51m ago
Flights observed
68
Distinct callsigns
14
Country
DE
Last broadcast
51m 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 14 distinct

Callsign Airline Flights Last seen
DLH797 Lufthansa 13 2026-05-28
DLH796 Lufthansa 9 2026-05-28
DLH753 Lufthansa 8 2026-05-14
DLH752 Lufthansa 7 2026-05-03
DLH761 Lufthansa 5 2026-05-18
DLH760 Lufthansa 5 2026-05-18
DLH500 Lufthansa 5 2026-05-19
DLH501 Lufthansa 4 2026-05-20
DLH471 Lufthansa 3 2026-05-29
DLH470 Lufthansa 3 2026-05-29
DLH729 Lufthansa 2 2026-05-16
DLH542 Lufthansa 2 2026-05-22
DLH728 Lufthansa 1 2026-05-15
DLH543 Lufthansa 1 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DLH471 YYZ → FRA May 29, 23:00 UTCMay 30, 06:05 UTC7h 5m
2026-05-29 DLH470 FRA → YYZ May 29, 12:35 UTCMay 29, 20:05 UTC7h 30m
2026-05-28 DLH797 HKG → FRA May 28, 20:45 UTCMay 29, 04:30 UTC7h 45m
2026-05-28 DLH797 HKG → FRA May 28, 15:35 UTCMay 28, 15:50 UTC15m
2026-05-28 DLH796 FRA → HKG May 28, 06:45 UTCMay 28, 07:20 UTC35m
2026-05-27 DLH796 FRA → HKG May 27, 20:00 UTCMay 28, 03:40 UTC7h 40m
2026-05-24 DLH797 HKG → FRA May 24, 00:20 UTCMay 24, 04:25 UTC4h 5m
2026-05-23 DLH797 HKG → FRA May 23, 16:15 UTCMay 23, 16:25 UTC10m
2026-05-23 DLH796 FRA → HKG May 23, 06:40 UTCMay 23, 07:20 UTC40m
2026-05-22 DLH796 FRA → HKG May 22, 20:05 UTCMay 22, 23:50 UTC3h 45m
2026-05-22 DLH543 BOG → FRA May 22, 04:55 UTCMay 22, 14:50 UTC9h 55m
2026-05-22 DLH542 FRA → BOG May 22, 00:05 UTCMay 22, 00:30 UTC25m
2026-05-21 DLH542 FRA → BOG May 21, 13:30 UTCMay 21, 15:20 UTC1h 50m
2026-05-20 DLH501 GIG → MUC May 20, 19:35 UTCMay 21, 06:15 UTC10h 40m
2026-05-19 DLH500 MUC → GIG May 19, 20:40 UTCMay 20, 07:45 UTC11h 6m
2026-05-18 DLH761 DEL → FRA May 18, 21:50 UTCMay 19, 05:25 UTC7h 35m
2026-05-18 DLH760 FRA → DEL May 18, 11:55 UTCMay 18, 19:05 UTC7h 9m
2026-05-17 DLH501 GIG → MUC May 17, 19:25 UTCMay 18, 06:01 UTC10h 35m
2026-05-16 DLH500 MUC → GIG May 16, 20:40 UTCMay 17, 08:05 UTC11h 25m
2026-05-16 DLH729 PVG → FRA May 16, 13:31 UTCMay 16, 17:35 UTC4h 5m
2026-05-15 DLH729 PVG → FRA May 15, 16:20 UTCMay 16, 16:15 UTC23h 56m
2026-05-15 DLH728 FRA → PVG May 15, 14:20 UTCMay 16, 14:16 UTC23h 55m
2026-05-14 DLH753 HYD → FRA May 14, 12:20 UTCMay 15, 07:20 UTC19h 0m
2026-05-14 DLH753 HYD → FRA May 14, 11:35 UTCMay 15, 07:20 UTC19h 45m
2026-05-13 DLH471 YYZ → FRA May 13, 23:00 UTCMay 14, 06:10 UTC7h 10m
2026-05-13 DLH470 FRA → YYZ May 13, 12:30 UTCMay 13, 20:25 UTC7h 55m
2026-05-12 DLH797 HKG → FRA May 12, 02:55 UTCMay 12, 04:40 UTC1h 45m
2026-05-11 DLH797 HKG → FRA May 11, 16:05 UTCMay 11, 16:20 UTC15m
2026-05-11 DLH796 FRA → HKG May 11, 07:45 UTCMay 11, 08:20 UTC35m
2026-05-10 DLH796 FRA → HKG May 10, 21:10 UTCMay 11, 05:35 UTC8h 25m
2026-05-09 DLH471 YYZ → FRA May 9, 23:25 UTCMay 10, 06:20 UTC6h 55m
2026-05-09 DLH470 FRA → YYZ May 9, 12:30 UTCMay 9, 20:15 UTC7h 45m
2026-05-09 DLH797 HKG → FRA May 9, 02:35 UTCMay 9, 04:30 UTC1h 55m
2026-05-08 DLH797 HKG → FRA May 8, 15:45 UTCMay 8, 16:00 UTC15m
2026-05-07 DLH796 FRA → HKG May 7, 20:05 UTCMay 8, 07:14 UTC11h 10m
2026-05-06 DLH761 DEL → FRA May 6, 21:40 UTCMay 7, 05:35 UTC7h 55m
2026-05-06 DLH760 FRA → DEL May 6, 11:45 UTCMay 6, 19:00 UTC7h 14m
2026-05-05 DLH501 GIG → MUC May 5, 19:25 UTCMay 6, 05:45 UTC10h 20m
2026-05-05 DLH500 MUC → GIG May 5, 08:00 UTCMay 5, 08:15 UTC15m
2026-05-04 DLH500 MUC → GIG May 4, 20:35 UTCMay 5, 07:15 UTC10h 40m
2026-05-03 DLH753 HYD → FRA May 3, 12:20 UTCMay 4, 06:55 UTC18h 35m
2026-05-03 DLH752 FRA → HYD May 3, 11:35 UTCMay 4, 06:55 UTC19h 20m
2026-05-02 DLH501 GIG → MUC May 2, 19:30 UTCMay 3, 06:10 UTC10h 39m
2026-05-01 DLH500 MUC → GIG May 1, 20:40 UTCMay 2, 08:05 UTC11h 26m
2026-04-30 DLH753 HYD → FRA Apr 30, 12:20 UTCMay 1, 07:00 UTC18h 40m
2026-04-30 DLH752 FRA → HYD Apr 30, 11:30 UTCMay 1, 07:00 UTC19h 31m
2026-04-29 DLH753 HYD → FRA Apr 29, 12:30 UTCApr 30, 07:05 UTC18h 34m
2026-04-29 DLH753 HYD → FRA Apr 29, 11:15 UTCApr 30, 07:05 UTC19h 49m
2026-04-27 DLH752 FRA → HYD Apr 27, 12:20 UTCApr 28, 07:30 UTC19h 10m
2026-04-27 DLH752 FRA → HYD Apr 27, 11:30 UTCApr 28, 07:30 UTC20h 0m

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 51m 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 14 distinct callsigns, including DLH797, DLH796, DLH753, DLH752, DLH761.