sensors Mode-S transponder
3C4B2B
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-ABYK · BOEING 747-8
- Hex
- 3C4B2B
- Octal
- 17045453
- Decimal
- 3,951,403
- Country
- DE
- Tail
- D-ABYK
- Type
- B748
- Flights observed
- 56
- Distinct callsigns
- 16
- Country
- DE
- Last broadcast
- 13h ago
Last known position
Country allocation
The ICAO 24-bit address 3C4B2B 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 16 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DLH499 | Lufthansa | 8 | 2026-05-22 |
| DLH430 | Lufthansa | 6 | 2026-05-08 |
| DLH573 | Lufthansa | 5 | 2026-05-23 |
| DLH572 | Lufthansa | 5 | 2026-05-22 |
| DLH498 | Lufthansa | 5 | 2026-05-21 |
| DLH431 | Lufthansa | 5 | 2026-05-08 |
| DLH463 | Lufthansa | 4 | 2026-05-17 |
| DLH457 | Lufthansa | 4 | 2026-05-29 |
| DLH456 | Lufthansa | 4 | 2026-05-28 |
| DLH462 | Lufthansa | 3 | 2026-05-17 |
| DLH506 | Lufthansa | 2 | 2026-05-29 |
| DLH781 | Lufthansa | 1 | 2026-05-16 |
| DLH780 | Lufthansa | 1 | 2026-05-15 |
| DLH507 | Lufthansa | 1 | 2026-05-20 |
| DLH455 | Lufthansa | 1 | 2026-04-18 |
| DLH454 | Lufthansa | 1 | 2026-04-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | DLH506 | FRA → GRU | May 29, 21:00 UTC | May 30, 08:00 UTC | 11h 0m |
| 2026-05-29 | DLH457 | LAX → FRA | May 29, 01:05 UTC | May 29, 11:40 UTC | 10h 35m |
| 2026-05-28 | DLH456 | FRA → LAX | May 28, 12:00 UTC | May 28, 22:55 UTC | 10h 55m |
| 2026-05-23 | DLH573 | JNB → FRA | May 23, 17:25 UTC | May 24, 03:40 UTC | 10h 16m |
| 2026-05-22 | DLH572 | FRA → JNB | May 22, 20:35 UTC | May 23, 06:05 UTC | 9h 29m |
| 2026-05-22 | DLH499 | MEX → FRA | May 22, 03:20 UTC | May 22, 12:50 UTC | 9h 30m |
| 2026-05-21 | DLH498 | FRA → MEX | May 21, 12:15 UTC | May 22, 00:40 UTC | 12h 25m |
| 2026-05-20 | DLH507 | GRU → FRA | May 20, 21:50 UTC | May 21, 08:35 UTC | 10h 45m |
| 2026-05-19 | DLH506 | FRA → GRU | May 19, 20:50 UTC | May 20, 08:05 UTC | 11h 16m |
| 2026-05-19 | DLH499 | MEX → FRA | May 19, 03:20 UTC | May 19, 13:40 UTC | 10h 20m |
| 2026-05-18 | DLH498 | FRA → MEX | May 18, 13:05 UTC | May 19, 00:35 UTC | 11h 29m |
| 2026-05-17 | DLH463 | MIA → FRA | May 17, 21:40 UTC | May 18, 05:55 UTC | 8h 15m |
| 2026-05-17 | DLH462 | FRA → MIA | May 17, 09:15 UTC | May 17, 19:15 UTC | 10h 0m |
| 2026-05-16 | DLH781 | SIN → FRA | May 16, 16:15 UTC | May 17, 04:25 UTC | 12h 10m |
| 2026-05-15 | DLH780 | FRA → SIN | May 15, 20:15 UTC | May 16, 07:45 UTC | 11h 31m |
| 2026-05-14 | DLH457 | LAX → FRA | May 14, 22:20 UTC | May 15, 08:40 UTC | 10h 20m |
| 2026-05-14 | DLH456 | FRA → LAX | May 14, 09:10 UTC | May 14, 20:10 UTC | 11h 0m |
| 2026-05-08 | DLH431 | ORD → FRA | May 8, 22:30 UTC | May 9, 06:05 UTC | 7h 35m |
| 2026-05-08 | DLH430 | FRA → ORD | May 8, 09:30 UTC | May 8, 18:15 UTC | 8h 45m |
| 2026-05-07 | DLH573 | JNB → FRA | May 7, 17:55 UTC | May 8, 04:00 UTC | 10h 5m |
| 2026-05-06 | DLH572 | FRA → JNB | May 6, 20:45 UTC | May 7, 06:40 UTC | 9h 55m |
| 2026-05-06 | DLH499 | MEX → FRA | May 6, 02:40 UTC | May 6, 12:45 UTC | 10h 5m |
| 2026-05-05 | DLH498 | FRA → MEX | May 5, 12:05 UTC | May 5, 23:50 UTC | 11h 45m |
| 2026-05-04 | DLH573 | JNB → FRA | May 4, 17:25 UTC | May 5, 03:30 UTC | 10h 6m |
| 2026-05-03 | DLH572 | FRA → JNB | May 3, 20:35 UTC | May 4, 06:45 UTC | 10h 10m |
| 2026-05-02 | DLH457 | LAX → FRA | May 2, 22:50 UTC | May 3, 08:55 UTC | 10h 4m |
| 2026-05-02 | DLH456 | FRA → LAX | May 2, 09:30 UTC | May 2, 20:25 UTC | 10h 55m |
| 2026-05-01 | DLH431 | ORD → FRA | May 1, 21:45 UTC | May 2, 05:25 UTC | 7h 40m |
| 2026-05-01 | DLH430 | FRA → ORD | May 1, 15:25 UTC | May 1, 17:50 UTC | 2h 25m |
| 2026-05-01 | DLH430 | FRA → ORD | May 1, 09:20 UTC | May 1, 15:20 UTC | 6h 0m |
| 2026-04-30 | DLH431 | ORD → FRA | Apr 30, 21:30 UTC | May 1, 05:10 UTC | 7h 40m |
| 2026-04-30 | DLH430 | FRA → ORD | Apr 30, 09:25 UTC | Apr 30, 17:40 UTC | 8h 15m |
| 2026-04-28 | DLH431 | ORD → FRA | Apr 28, 22:25 UTC | Apr 29, 06:05 UTC | 7h 40m |
| 2026-04-28 | DLH430 | FRA → ORD | Apr 28, 09:30 UTC | Apr 28, 18:00 UTC | 8h 30m |
| 2026-04-27 | DLH573 | JNB → FRA | Apr 27, 17:50 UTC | Apr 28, 03:45 UTC | 9h 55m |
| 2026-04-26 | DLH572 | FRA → JNB | Apr 26, 20:35 UTC | Apr 27, 06:40 UTC | 10h 5m |
| 2026-04-25 | DLH457 | LAX → FRA | Apr 25, 22:55 UTC | Apr 26, 09:00 UTC | 10h 5m |
| 2026-04-25 | DLH456 | FRA → LAX | Apr 25, 09:25 UTC | Apr 25, 20:05 UTC | 10h 40m |
| 2026-04-24 | DLH463 | MIA → FRA | Apr 24, 21:15 UTC | Apr 25, 05:35 UTC | 8h 20m |
| 2026-04-24 | DLH462 | FRA → MIA | Apr 24, 09:30 UTC | Apr 24, 18:30 UTC | 9h 0m |
| 2026-04-23 | DLH431 | ORD → FRA | Apr 23, 22:15 UTC | Apr 24, 06:25 UTC | 8h 10m |
| 2026-04-23 | DLH430 | FRA → ORD | Apr 23, 09:20 UTC | Apr 23, 17:15 UTC | 7h 55m |
| 2026-04-23 | DLH463 | MIA → FRA | Apr 23, 04:15 UTC | Apr 23, 06:01 UTC | 1h 46m |
| 2026-04-22 | DLH463 | MIA → FRA | Apr 22, 21:20 UTC | Apr 22, 21:35 UTC | 15m |
| 2026-04-22 | DLH462 | FRA → MIA | Apr 22, 09:10 UTC | Apr 22, 18:25 UTC | 9h 15m |
| 2026-04-21 | DLH573 | JNB → FRA | Apr 21, 17:25 UTC | Apr 22, 03:40 UTC | 10h 15m |
| 2026-04-20 | DLH572 | FRA → JNB | Apr 20, 20:30 UTC | Apr 21, 06:25 UTC | 9h 55m |
| 2026-04-18 | DLH455 | SFO → FRA | Apr 18, 22:10 UTC | Apr 19, 08:15 UTC | 10h 5m |
| 2026-04-18 | DLH454 | FRA → SFO | Apr 18, 08:55 UTC | Apr 18, 19:20 UTC | 10h 25m |
| 2026-04-15 | DLH499 | MEX → FRA | Apr 15, 11:00 UTC | Apr 15, 12:45 UTC | 1h 45m |
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-ABYK page for operator, model, and routing details .