sensors Mode-S transponder
3C4B35
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-ABYU · BOEING 747-8
- Hex
- 3C4B35
- Octal
- 17045465
- Decimal
- 3,951,413
- Country
- DE
- Tail
- D-ABYU
- Type
- B748
- Flights observed
- 55
- Distinct callsigns
- 19
- Country
- DE
- Last broadcast
- 8h ago
Last known position
Country allocation
The ICAO 24-bit address 3C4B35 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 19 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DLH510 | Lufthansa | 9 | 2026-06-02 |
| DLH511 | Lufthansa | 8 | 2026-06-03 |
| DLH716 | Lufthansa | 6 | 2026-06-04 |
| DLH717 | Lufthansa | 5 | 2026-05-30 |
| DLH507 | Lufthansa | 3 | 2026-05-26 |
| DLH506 | Lufthansa | 3 | 2026-05-25 |
| DLH457 | Lufthansa | 3 | 2026-06-01 |
| DLH456 | Lufthansa | 3 | 2026-06-01 |
| DLH499 | Lufthansa | 2 | 2026-05-14 |
| DLH498 | Lufthansa | 2 | 2026-05-13 |
| DLH463 | Lufthansa | 2 | 2026-05-01 |
| DLH462 | Lufthansa | 2 | 2026-05-01 |
| DLH9923 | Lufthansa | 1 | 2026-04-18 |
| DLH573 | Lufthansa | 1 | 2026-04-22 |
| DLH572 | Lufthansa | 1 | 2026-04-21 |
| DLH431 | Lufthansa | 1 | 2026-05-04 |
| DLH430 | Lufthansa | 1 | 2026-05-04 |
| DLH403 | Lufthansa | 1 | 2026-05-17 |
| DLH402 | Lufthansa | 1 | 2026-05-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-04 | DLH716 | FRA → HND | Jun 4, 12:40 UTC | Jun 5, 00:20 UTC | 11h 40m |
| 2026-06-03 | DLH511 | EZE → FRA | Jun 3, 19:45 UTC | Jun 4, 08:15 UTC | 12h 30m |
| 2026-06-02 | DLH510 | FRA → EZE | Jun 2, 20:10 UTC | Jun 3, 09:20 UTC | 13h 10m |
| 2026-06-01 | DLH457 | LAX → FRA | Jun 1, 22:25 UTC | Jun 2, 08:50 UTC | 10h 25m |
| 2026-06-01 | DLH456 | FRA → LAX | Jun 1, 09:20 UTC | Jun 1, 19:55 UTC | 10h 35m |
| 2026-05-30 | DLH717 | HND → FRA | May 30, 03:35 UTC | May 30, 16:50 UTC | 13h 15m |
| 2026-05-29 | DLH716 | FRA → HND | May 29, 12:35 UTC | May 30, 00:10 UTC | 11h 36m |
| 2026-05-28 | DLH511 | EZE → FRA | May 28, 19:55 UTC | May 29, 09:00 UTC | 13h 5m |
| 2026-05-27 | DLH510 | FRA → EZE | May 27, 20:05 UTC | May 28, 09:25 UTC | 13h 20m |
| 2026-05-26 | DLH507 | GRU → FRA | May 26, 21:49 UTC | May 27, 08:50 UTC | 11h 1m |
| 2026-05-25 | DLH506 | FRA → GRU | May 25, 20:30 UTC | May 26, 08:04 UTC | 11h 35m |
| 2026-05-25 | DLH717 | HND → FRA | May 25, 04:00 UTC | May 25, 17:35 UTC | 13h 35m |
| 2026-05-24 | DLH716 | FRA → HND | May 24, 12:50 UTC | May 24, 23:46 UTC | 10h 56m |
| 2026-05-23 | DLH507 | GRU → FRA | May 23, 21:50 UTC | May 24, 08:40 UTC | 10h 50m |
| 2026-05-22 | DLH506 | FRA → GRU | May 22, 20:40 UTC | May 23, 08:10 UTC | 11h 29m |
| 2026-05-22 | DLH717 | HND → FRA | May 22, 03:40 UTC | May 22, 17:10 UTC | 13h 30m |
| 2026-05-21 | DLH716 | FRA → HND | May 21, 13:01 UTC | May 22, 01:15 UTC | 12h 15m |
| 2026-05-20 | DLH511 | EZE → FRA | May 20, 19:45 UTC | May 21, 08:30 UTC | 12h 45m |
| 2026-05-19 | DLH510 | FRA → EZE | May 19, 20:05 UTC | May 20, 09:25 UTC | 13h 21m |
| 2026-05-17 | DLH403 | EWR → FRA | May 17, 22:40 UTC | May 18, 05:30 UTC | 6h 50m |
| 2026-05-17 | DLH402 | FRA → EWR | May 17, 11:50 UTC | May 17, 19:30 UTC | 7h 40m |
| 2026-05-16 | DLH511 | EZE → FRA | May 16, 19:45 UTC | May 17, 08:10 UTC | 12h 25m |
| 2026-05-15 | DLH510 | FRA → EZE | May 15, 20:30 UTC | May 16, 09:45 UTC | 13h 16m |
| 2026-05-14 | DLH499 | MEX → FRA | May 14, 02:40 UTC | May 14, 13:01 UTC | 10h 20m |
| 2026-05-13 | DLH498 | FRA → MEX | May 13, 12:05 UTC | May 13, 23:30 UTC | 11h 25m |
| 2026-05-12 | DLH511 | EZE → FRA | May 12, 19:50 UTC | May 13, 08:05 UTC | 12h 15m |
| 2026-05-11 | DLH510 | FRA → EZE | May 11, 20:15 UTC | May 12, 09:45 UTC | 13h 30m |
| 2026-05-10 | DLH511 | EZE → FRA | May 10, 19:50 UTC | May 11, 08:00 UTC | 12h 11m |
| 2026-05-09 | DLH510 | FRA → EZE | May 9, 20:10 UTC | May 10, 09:50 UTC | 13h 40m |
| 2026-05-08 | DLH511 | EZE → FRA | May 8, 19:45 UTC | May 9, 08:20 UTC | 12h 35m |
| 2026-05-08 | DLH510 | FRA → EZE | May 8, 06:14 UTC | May 8, 09:39 UTC | 3h 25m |
| 2026-05-07 | DLH510 | FRA → EZE | May 7, 20:10 UTC | May 8, 05:44 UTC | 9h 35m |
| 2026-05-07 | DLH717 | HND → FRA | May 7, 03:15 UTC | May 7, 16:55 UTC | 13h 40m |
| 2026-05-06 | DLH716 | FRA → HND | May 6, 12:35 UTC | May 7, 00:50 UTC | 12h 14m |
| 2026-05-05 | DLH457 | LAX → FRA | May 5, 22:25 UTC | May 6, 08:35 UTC | 10h 10m |
| 2026-05-05 | DLH456 | FRA → LAX | May 5, 09:15 UTC | May 5, 20:01 UTC | 10h 45m |
| 2026-05-04 | DLH431 | ORD → FRA | May 4, 21:55 UTC | May 5, 05:40 UTC | 7h 45m |
| 2026-05-04 | DLH430 | FRA → ORD | May 4, 09:25 UTC | May 4, 17:50 UTC | 8h 25m |
| 2026-05-01 | DLH463 | MIA → FRA | May 1, 21:20 UTC | May 2, 06:00 UTC | 8h 40m |
| 2026-05-01 | DLH462 | FRA → MIA | May 1, 09:35 UTC | May 1, 18:50 UTC | 9h 15m |
| 2026-04-29 | DLH463 | MIA → FRA | Apr 29, 21:30 UTC | Apr 30, 06:10 UTC | 8h 39m |
| 2026-04-29 | DLH462 | FRA → MIA | Apr 29, 09:05 UTC | Apr 29, 18:10 UTC | 9h 5m |
| 2026-04-27 | DLH507 | GRU → FRA | Apr 27, 21:55 UTC | Apr 28, 08:45 UTC | 10h 50m |
| 2026-04-26 | DLH506 | FRA → GRU | Apr 26, 20:25 UTC | Apr 27, 07:35 UTC | 11h 10m |
| 2026-04-25 | DLH511 | EZE → FRA | Apr 25, 19:50 UTC | Apr 26, 08:35 UTC | 12h 45m |
| 2026-04-24 | DLH510 | FRA → EZE | Apr 24, 20:20 UTC | Apr 25, 09:45 UTC | 13h 25m |
| 2026-04-24 | DLH499 | MEX → FRA | Apr 24, 02:25 UTC | Apr 24, 13:00 UTC | 10h 35m |
| 2026-04-23 | DLH498 | FRA → MEX | Apr 23, 11:55 UTC | Apr 23, 22:50 UTC | 10h 54m |
| 2026-04-22 | DLH573 | JNB → FRA | Apr 22, 17:35 UTC | Apr 23, 03:40 UTC | 10h 5m |
| 2026-04-21 | DLH572 | FRA → JNB | Apr 21, 20:40 UTC | Apr 22, 06:30 UTC | 9h 50m |
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-ABYU page for operator, model, and routing details .