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
- Flights observed
- 78
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- 11h ago
Last known position
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
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | DLH9911 | FRA → BIO | May 30, 02:30 UTC | May 30, 09:40 UTC | 7h 10m |
| 2026-05-28 | DLH470 | FRA → YYZ | May 28, 13:05 UTC | May 28, 20:25 UTC | 7h 20m |
| 2026-05-27 | DLH501 | GIG → MUC | May 27, 19:25 UTC | May 28, 06:05 UTC | 10h 40m |
| 2026-05-26 | DLH500 | MUC → GIG | May 26, 20:45 UTC | May 27, 07:55 UTC | 11h 10m |
| 2026-05-26 | DLH543 | BOG → FRA | May 26, 13:54 UTC | May 26, 15:45 UTC | 1h 50m |
| 2026-05-26 | DLH543 | BOG → FRA | May 26, 05:45 UTC | May 26, 05:59 UTC | 15m |
| 2026-05-25 | DLH542 | FRA → BOG | May 25, 13:15 UTC | May 26, 00:09 UTC | 10h 55m |
| 2026-05-24 | DLH797 | HKG → FRA | May 24, 21:20 UTC | May 25, 04:25 UTC | 7h 5m |
| 2026-05-24 | DLH797 | HKG → FRA | May 24, 16:00 UTC | May 24, 16:15 UTC | 15m |
| 2026-05-24 | DLH796 | FRA → HKG | May 24, 06:35 UTC | May 24, 07:05 UTC | 30m |
| 2026-05-23 | DLH796 | FRA → HKG | May 23, 20:10 UTC | May 23, 23:55 UTC | 3h 45m |
| 2026-05-23 | DLH729 | PVG → FRA | May 23, 09:30 UTC | May 23, 16:35 UTC | 7h 5m |
| 2026-05-22 | DLH729 | PVG → FRA | May 22, 17:40 UTC | May 23, 16:15 UTC | 22h 34m |
| 2026-05-22 | DLH728 | FRA → PVG | May 22, 14:20 UTC | May 23, 13:35 UTC | 23h 14m |
| 2026-05-22 | DLH728 | FRA → PVG | May 22, 14:05 UTC | May 23, 09:30 UTC | 19h 24m |
| 2026-05-21 | DLH753 | HYD → FRA | May 21, 12:20 UTC | May 22, 07:00 UTC | 18h 40m |
| 2026-05-21 | DLH752 | FRA → HYD | May 21, 11:30 UTC | May 22, 07:00 UTC | 19h 30m |
| 2026-05-20 | DLH753 | HYD → FRA | May 20, 12:20 UTC | May 21, 07:05 UTC | 18h 45m |
| 2026-05-20 | DLH752 | FRA → HYD | May 20, 12:05 UTC | May 21, 07:05 UTC | 19h 0m |
| 2026-05-19 | DLH469 | AUS → FRA | May 19, 21:45 UTC | May 20, 07:10 UTC | 9h 26m |
| 2026-05-19 | DLH468 | FRA → AUS | May 19, 08:40 UTC | May 19, 19:00 UTC | 10h 20m |
| 2026-05-18 | DLH797 | HKG → FRA | May 18, 18:55 UTC | May 19, 04:25 UTC | 9h 30m |
| 2026-05-18 | DLH797 | HKG → FRA | May 18, 15:55 UTC | May 18, 16:15 UTC | 20m |
| 2026-05-18 | DLH796 | FRA → HKG | May 18, 06:45 UTC | May 18, 07:10 UTC | 25m |
| 2026-05-17 | DLH796 | FRA → HKG | May 17, 20:05 UTC | May 17, 23:50 UTC | 3h 45m |
| 2026-05-16 | DLH753 | HYD → FRA | May 16, 12:21 UTC | May 17, 07:10 UTC | 18h 50m |
| 2026-05-16 | DLH753 | HYD → FRA | May 16, 11:51 UTC | May 17, 07:10 UTC | 19h 20m |
| 2026-05-15 | DLH501 | GIG → MUC | May 15, 19:40 UTC | May 16, 06:16 UTC | 10h 36m |
| 2026-05-15 | DLH500 | MUC → GIG | May 15, 07:35 UTC | May 15, 07:45 UTC | 10m |
| 2026-05-14 | DLH500 | MUC → GIG | May 14, 20:40 UTC | May 15, 06:50 UTC | 10h 10m |
| 2026-05-13 | DLH797 | HKG → FRA | May 13, 04:05 UTC | May 13, 06:10 UTC | 2h 5m |
| 2026-05-12 | DLH797 | HKG → FRA | May 12, 17:30 UTC | May 12, 17:45 UTC | 15m |
| 2026-05-11 | DLH796 | FRA → HKG | May 11, 20:10 UTC | May 12, 07:15 UTC | 11h 5m |
| 2026-05-10 | DLH501 | GIG → MUC | May 10, 19:35 UTC | May 11, 05:55 UTC | 10h 20m |
| 2026-05-09 | DLH500 | MUC → GIG | May 9, 20:44 UTC | May 10, 08:25 UTC | 11h 40m |
| 2026-05-08 | DLH543 | BOG → FRA | May 8, 21:15 UTC | May 9, 14:55 UTC | 17h 40m |
| 2026-05-08 | DLH543 | BOG → FRA | May 8, 14:20 UTC | May 9, 14:15 UTC | 23h 55m |
| 2026-05-08 | DLH542 | FRA → BOG | May 8, 13:05 UTC | May 9, 06:45 UTC | 17h 40m |
| 2026-05-07 | DLH761 | DEL → FRA | May 7, 21:40 UTC | May 8, 05:49 UTC | 8h 9m |
| 2026-05-07 | DLH760 | FRA → DEL | May 7, 11:45 UTC | May 7, 18:45 UTC | 7h 0m |
| 2026-05-06 | DLH797 | HKG → FRA | May 6, 02:25 UTC | May 6, 04:15 UTC | 1h 50m |
| 2026-05-05 | DLH797 | HKG → FRA | May 5, 15:40 UTC | May 5, 16:00 UTC | 20m |
| 2026-05-04 | DLH796 | FRA → HKG | May 4, 20:00 UTC | May 5, 07:20 UTC | 11h 20m |
| 2026-05-04 | DLH543 | BOG → FRA | May 4, 05:55 UTC | May 4, 15:20 UTC | 9h 25m |
| 2026-05-03 | DLH542 | FRA → BOG | May 3, 13:00 UTC | May 3, 22:34 UTC | 9h 35m |
| 2026-05-02 | DLH753 | HYD → FRA | May 2, 12:20 UTC | May 3, 07:00 UTC | 18h 39m |
| 2026-05-02 | DLH752 | FRA → HYD | May 2, 11:30 UTC | May 3, 07:00 UTC | 19h 29m |
| 2026-05-02 | DLH797 | HKG → FRA | May 2, 02:20 UTC | May 2, 06:10 UTC | 3h 50m |
| 2026-05-01 | DLH797 | HKG → FRA | May 1, 17:40 UTC | May 1, 17:55 UTC | 15m |
| 2026-04-30 | DLH796 | FRA → HKG | Apr 30, 20:05 UTC | May 1, 07:15 UTC | 11h 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 .