sensors Mode-S transponder

3C4A11

ICAO 24-bit transponder address · allocated to Germany

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

Hex
3C4A11
Octal
17045021
Decimal
3,951,121
Country
DE
Tail
D-ABPQ
Type
B789
No current signal · last broadcast 11h ago
Flights observed
78
Distinct callsigns
20
Country
DE
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 3C4A11.

Country allocation

The ICAO 24-bit address 3C4A11 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 12 2026-05-24
DLH796 Lufthansa 9 2026-05-24
DLH543 Lufthansa 7 2026-05-26
DLH500 Lufthansa 6 2026-05-26
DLH753 Lufthansa 5 2026-05-21
DLH471 Lufthansa 5 2026-04-25
DLH729 Lufthansa 4 2026-05-23
DLH728 Lufthansa 4 2026-05-22
DLH542 Lufthansa 4 2026-05-25
DLH501 Lufthansa 4 2026-05-27
DLH470 Lufthansa 4 2026-05-28
DLH752 Lufthansa 3 2026-05-21
DLH469 Lufthansa 2 2026-05-19
DLH468 Lufthansa 2 2026-05-19
DLH9911 Lufthansa 1 2026-05-30
DLH7JF Lufthansa 1 2026-04-24
DLH761 Lufthansa 1 2026-05-07
DLH760 Lufthansa 1 2026-05-07
DLH6EE Lufthansa 1 2026-04-24
DLH4MW Lufthansa 1 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 DLH9911 FRA → BIO May 30, 02:30 UTCMay 30, 09:40 UTC7h 10m
2026-05-28 DLH470 FRA → YYZ May 28, 13:05 UTCMay 28, 20:25 UTC7h 20m
2026-05-27 DLH501 GIG → MUC May 27, 19:25 UTCMay 28, 06:05 UTC10h 40m
2026-05-26 DLH500 MUC → GIG May 26, 20:45 UTCMay 27, 07:55 UTC11h 10m
2026-05-26 DLH543 BOG → FRA May 26, 13:54 UTCMay 26, 15:45 UTC1h 50m
2026-05-26 DLH543 BOG → FRA May 26, 05:45 UTCMay 26, 05:59 UTC15m
2026-05-25 DLH542 FRA → BOG May 25, 13:15 UTCMay 26, 00:09 UTC10h 55m
2026-05-24 DLH797 HKG → FRA May 24, 21:20 UTCMay 25, 04:25 UTC7h 5m
2026-05-24 DLH797 HKG → FRA May 24, 16:00 UTCMay 24, 16:15 UTC15m
2026-05-24 DLH796 FRA → HKG May 24, 06:35 UTCMay 24, 07:05 UTC30m
2026-05-23 DLH796 FRA → HKG May 23, 20:10 UTCMay 23, 23:55 UTC3h 45m
2026-05-23 DLH729 PVG → FRA May 23, 09:30 UTCMay 23, 16:35 UTC7h 5m
2026-05-22 DLH729 PVG → FRA May 22, 17:40 UTCMay 23, 16:15 UTC22h 34m
2026-05-22 DLH728 FRA → PVG May 22, 14:20 UTCMay 23, 13:35 UTC23h 14m
2026-05-22 DLH728 FRA → PVG May 22, 14:05 UTCMay 23, 09:30 UTC19h 24m
2026-05-21 DLH753 HYD → FRA May 21, 12:20 UTCMay 22, 07:00 UTC18h 40m
2026-05-21 DLH752 FRA → HYD May 21, 11:30 UTCMay 22, 07:00 UTC19h 30m
2026-05-20 DLH753 HYD → FRA May 20, 12:20 UTCMay 21, 07:05 UTC18h 45m
2026-05-20 DLH752 FRA → HYD May 20, 12:05 UTCMay 21, 07:05 UTC19h 0m
2026-05-19 DLH469 AUS → FRA May 19, 21:45 UTCMay 20, 07:10 UTC9h 26m
2026-05-19 DLH468 FRA → AUS May 19, 08:40 UTCMay 19, 19:00 UTC10h 20m
2026-05-18 DLH797 HKG → FRA May 18, 18:55 UTCMay 19, 04:25 UTC9h 30m
2026-05-18 DLH797 HKG → FRA May 18, 15:55 UTCMay 18, 16:15 UTC20m
2026-05-18 DLH796 FRA → HKG May 18, 06:45 UTCMay 18, 07:10 UTC25m
2026-05-17 DLH796 FRA → HKG May 17, 20:05 UTCMay 17, 23:50 UTC3h 45m
2026-05-16 DLH753 HYD → FRA May 16, 12:21 UTCMay 17, 07:10 UTC18h 50m
2026-05-16 DLH753 HYD → FRA May 16, 11:51 UTCMay 17, 07:10 UTC19h 20m
2026-05-15 DLH501 GIG → MUC May 15, 19:40 UTCMay 16, 06:16 UTC10h 36m
2026-05-15 DLH500 MUC → GIG May 15, 07:35 UTCMay 15, 07:45 UTC10m
2026-05-14 DLH500 MUC → GIG May 14, 20:40 UTCMay 15, 06:50 UTC10h 10m
2026-05-13 DLH797 HKG → FRA May 13, 04:05 UTCMay 13, 06:10 UTC2h 5m
2026-05-12 DLH797 HKG → FRA May 12, 17:30 UTCMay 12, 17:45 UTC15m
2026-05-11 DLH796 FRA → HKG May 11, 20:10 UTCMay 12, 07:15 UTC11h 5m
2026-05-10 DLH501 GIG → MUC May 10, 19:35 UTCMay 11, 05:55 UTC10h 20m
2026-05-09 DLH500 MUC → GIG May 9, 20:44 UTCMay 10, 08:25 UTC11h 40m
2026-05-08 DLH543 BOG → FRA May 8, 21:15 UTCMay 9, 14:55 UTC17h 40m
2026-05-08 DLH543 BOG → FRA May 8, 14:20 UTCMay 9, 14:15 UTC23h 55m
2026-05-08 DLH542 FRA → BOG May 8, 13:05 UTCMay 9, 06:45 UTC17h 40m
2026-05-07 DLH761 DEL → FRA May 7, 21:40 UTCMay 8, 05:49 UTC8h 9m
2026-05-07 DLH760 FRA → DEL May 7, 11:45 UTCMay 7, 18:45 UTC7h 0m
2026-05-06 DLH797 HKG → FRA May 6, 02:25 UTCMay 6, 04:15 UTC1h 50m
2026-05-05 DLH797 HKG → FRA May 5, 15:40 UTCMay 5, 16:00 UTC20m
2026-05-04 DLH796 FRA → HKG May 4, 20:00 UTCMay 5, 07:20 UTC11h 20m
2026-05-04 DLH543 BOG → FRA May 4, 05:55 UTCMay 4, 15:20 UTC9h 25m
2026-05-03 DLH542 FRA → BOG May 3, 13:00 UTCMay 3, 22:34 UTC9h 35m
2026-05-02 DLH753 HYD → FRA May 2, 12:20 UTCMay 3, 07:00 UTC18h 39m
2026-05-02 DLH752 FRA → HYD May 2, 11:30 UTCMay 3, 07:00 UTC19h 29m
2026-05-02 DLH797 HKG → FRA May 2, 02:20 UTCMay 2, 06:10 UTC3h 50m
2026-05-01 DLH797 HKG → FRA May 1, 17:40 UTCMay 1, 17:55 UTC15m
2026-04-30 DLH796 FRA → HKG Apr 30, 20:05 UTCMay 1, 07:15 UTC11h 10m

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

Mode-S 3C4A11 frequently asked

What is Mode-S code 3C4A11?
3C4A11 is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-ABPQ.
Where is Mode-S 3C4A11 registered?
Mode-S code 3C4A11 is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C4A11 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C4A11, octal 17045021, decimal 3,951,121.
What flights does 3C4A11 operate?
Mode-S 3C4A11 has broadcast 20 distinct callsigns, including DLH797, DLH796, DLH543, DLH500, DLH753.