sensors Mode-S transponder
3C4B2D
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-ABYM · BOEING 747-8
- Hex
- 3C4B2D
- Octal
- 17045455
- Decimal
- 3,951,405
- Country
- DE
- Tail
- D-ABYM
- Type
- B748
- Flights observed
- 55
- Distinct callsigns
- 15
- Country
- DE
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 3C4B2D 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DLH716 | Lufthansa | 9 | 2026-05-22 |
| DLH717 | Lufthansa | 8 | 2026-05-23 |
| DLH511 | Lufthansa | 6 | 2026-05-18 |
| DLH507 | Lufthansa | 6 | 2026-05-28 |
| DLH510 | Lufthansa | 5 | 2026-05-17 |
| DLH506 | Lufthansa | 5 | 2026-05-27 |
| DLH499 | Lufthansa | 5 | 2026-05-20 |
| DLH498 | Lufthansa | 4 | 2026-05-29 |
| DLH573 | Lufthansa | 1 | 2026-05-25 |
| DLH572 | Lufthansa | 1 | 2026-05-24 |
| DLH506D | Lufthansa | 1 | 2026-04-18 |
| DLH463 | Lufthansa | 1 | 2026-05-12 |
| DLH462 | Lufthansa | 1 | 2026-05-12 |
| DLH455 | Lufthansa | 1 | 2026-05-06 |
| DLH454 | Lufthansa | 1 | 2026-05-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | DLH498 | FRA → MEX | May 29, 13:20 UTC | May 30, 00:25 UTC | 11h 5m |
| 2026-05-28 | DLH507 | GRU → FRA | May 28, 21:30 UTC | May 29, 08:25 UTC | 10h 55m |
| 2026-05-27 | DLH506 | FRA → GRU | May 27, 20:40 UTC | May 28, 08:05 UTC | 11h 25m |
| 2026-05-25 | DLH573 | JNB → FRA | May 25, 17:15 UTC | May 26, 03:15 UTC | 9h 59m |
| 2026-05-24 | DLH572 | FRA → JNB | May 24, 20:30 UTC | May 25, 06:15 UTC | 9h 45m |
| 2026-05-23 | DLH717 | HND → FRA | May 23, 03:55 UTC | May 23, 17:30 UTC | 13h 35m |
| 2026-05-22 | DLH716 | FRA → HND | May 22, 13:20 UTC | May 23, 01:35 UTC | 12h 15m |
| 2026-05-21 | DLH507 | GRU → FRA | May 21, 21:40 UTC | May 22, 08:15 UTC | 10h 35m |
| 2026-05-20 | DLH506 | FRA → GRU | May 20, 20:40 UTC | May 21, 07:55 UTC | 11h 15m |
| 2026-05-20 | DLH499 | MEX → FRA | May 20, 04:00 UTC | May 20, 12:45 UTC | 8h 46m |
| 2026-05-20 | DLH499 | MEX → FRA | May 20, 02:45 UTC | May 20, 02:55 UTC | 10m |
| 2026-05-19 | DLH498 | FRA → MEX | May 19, 12:20 UTC | May 19, 23:50 UTC | 11h 30m |
| 2026-05-18 | DLH511 | EZE → FRA | May 18, 19:55 UTC | May 19, 08:25 UTC | 12h 30m |
| 2026-05-17 | DLH510 | FRA → EZE | May 17, 20:01 UTC | May 18, 09:10 UTC | 13h 10m |
| 2026-05-17 | DLH499 | MEX → FRA | May 17, 03:20 UTC | May 17, 13:25 UTC | 10h 5m |
| 2026-05-16 | DLH498 | FRA → MEX | May 16, 12:40 UTC | May 17, 00:30 UTC | 11h 50m |
| 2026-05-15 | DLH717 | HND → FRA | May 15, 04:05 UTC | May 15, 17:15 UTC | 13h 9m |
| 2026-05-14 | DLH716 | FRA → HND | May 14, 13:01 UTC | May 15, 01:30 UTC | 12h 30m |
| 2026-05-12 | DLH463 | MIA → FRA | May 12, 22:01 UTC | May 13, 06:30 UTC | 8h 30m |
| 2026-05-12 | DLH462 | FRA → MIA | May 12, 09:40 UTC | May 12, 19:05 UTC | 9h 25m |
| 2026-05-11 | DLH717 | HND → FRA | May 11, 03:40 UTC | May 11, 17:10 UTC | 13h 31m |
| 2026-05-10 | DLH716 | FRA → HND | May 10, 12:54 UTC | May 11, 01:15 UTC | 12h 20m |
| 2026-05-09 | DLH511 | EZE → FRA | May 9, 20:40 UTC | May 10, 08:10 UTC | 11h 30m |
| 2026-05-09 | DLH511 | EZE → FRA | May 9, 19:45 UTC | May 9, 20:05 UTC | 20m |
| 2026-05-08 | DLH510 | FRA → EZE | May 8, 20:10 UTC | May 9, 09:35 UTC | 13h 25m |
| 2026-05-08 | DLH499 | MEX → FRA | May 8, 03:39 UTC | May 8, 12:44 UTC | 9h 5m |
| 2026-05-08 | DLH499 | MEX → FRA | May 8, 02:55 UTC | May 8, 03:09 UTC | 15m |
| 2026-05-07 | DLH498 | FRA → MEX | May 7, 12:10 UTC | May 7, 23:45 UTC | 11h 35m |
| 2026-05-06 | DLH455 | SFO → FRA | May 6, 22:55 UTC | May 7, 09:10 UTC | 10h 16m |
| 2026-05-06 | DLH454 | FRA → SFO | May 6, 09:10 UTC | May 6, 20:05 UTC | 10h 54m |
| 2026-05-04 | DLH511 | EZE → FRA | May 4, 19:45 UTC | May 5, 07:55 UTC | 12h 10m |
| 2026-05-03 | DLH510 | FRA → EZE | May 3, 20:10 UTC | May 4, 10:00 UTC | 13h 50m |
| 2026-05-03 | DLH717 | HND → FRA | May 3, 03:15 UTC | May 3, 16:50 UTC | 13h 34m |
| 2026-05-02 | DLH716 | FRA → HND | May 2, 12:25 UTC | May 3, 00:30 UTC | 12h 5m |
| 2026-05-01 | DLH511 | EZE → FRA | May 1, 19:50 UTC | May 2, 08:20 UTC | 12h 30m |
| 2026-04-30 | DLH510 | FRA → EZE | Apr 30, 20:10 UTC | May 1, 09:30 UTC | 13h 20m |
| 2026-04-29 | DLH511 | EZE → FRA | Apr 29, 19:40 UTC | Apr 30, 08:20 UTC | 12h 39m |
| 2026-04-28 | DLH510 | FRA → EZE | Apr 28, 20:05 UTC | Apr 29, 09:25 UTC | 13h 20m |
| 2026-04-28 | DLH717 | HND → FRA | Apr 28, 03:20 UTC | Apr 28, 16:35 UTC | 13h 15m |
| 2026-04-27 | DLH716 | FRA → HND | Apr 27, 12:45 UTC | Apr 28, 00:30 UTC | 11h 45m |
| 2026-04-26 | DLH507 | GRU → FRA | Apr 26, 21:40 UTC | Apr 27, 08:30 UTC | 10h 50m |
| 2026-04-26 | DLH506 | FRA → GRU | Apr 26, 06:25 UTC | Apr 26, 07:55 UTC | 1h 30m |
| 2026-04-25 | DLH506 | FRA → GRU | Apr 25, 20:40 UTC | Apr 26, 06:00 UTC | 9h 20m |
| 2026-04-21 | DLH507 | GRU → FRA | Apr 21, 23:55 UTC | Apr 22, 08:10 UTC | 8h 15m |
| 2026-04-21 | DLH507 | GRU → FRA | Apr 21, 21:50 UTC | Apr 21, 23:50 UTC | 2h 0m |
| 2026-04-20 | DLH506 | FRA → GRU | Apr 20, 20:35 UTC | Apr 21, 08:05 UTC | 11h 30m |
| 2026-04-20 | DLH717 | HND → FRA | Apr 20, 03:15 UTC | Apr 20, 16:55 UTC | 13h 40m |
| 2026-04-19 | DLH716 | FRA → HND | Apr 19, 12:35 UTC | Apr 20, 00:25 UTC | 11h 50m |
| 2026-04-18 | DLH507 | GRU → FRA | Apr 18, 22:10 UTC | Apr 19, 09:05 UTC | 10h 55m |
| 2026-04-18 | DLH506D | FRA → GRU | Apr 18, 07:20 UTC | Apr 18, 19:00 UTC | 11h 40m |
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-ABYM page for operator, model, and routing details .