sensors Mode-S transponder
3C4599
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-AALY · BOEING 777-200LR
- Hex
- 3C4599
- Octal
- 17042631
- Decimal
- 3,949,977
- Country
- DE
- Tail
- D-AALY
- Type
- B77L
- Flights observed
- 124
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 3C4599 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 |
|---|---|---|---|
| BOX704 | - | 10 | 2026-05-04 |
| BOX733 | - | 7 | 2026-05-07 |
| BOX571 | AeroLogic | 7 | 2026-05-08 |
| BOX530 | AeroLogic | 7 | 2026-04-14 |
| BOX570 | AeroLogic | 6 | 2026-05-08 |
| BOX589 | AeroLogic | 5 | 2026-04-15 |
| BOX528 | AeroLogic | 5 | 2026-04-18 |
| BOX389 | AeroLogic | 5 | 2026-05-29 |
| BOX563 | - | 4 | 2026-04-17 |
| BOX715 | - | 3 | 2026-04-30 |
| BOX623 | AeroLogic | 3 | 2026-05-09 |
| BOX585 | AeroLogic | 3 | 2026-05-21 |
| BOX584 | - | 3 | 2026-05-20 |
| BOX562 | - | 3 | 2026-04-16 |
| BOX556 | - | 3 | 2026-04-20 |
| BOX519 | AeroLogic | 3 | 2026-05-20 |
| BOX502 | AeroLogic | 3 | 2026-04-22 |
| BOX394 | AeroLogic | 3 | 2026-05-28 |
| BOX722 | - | 2 | 2026-05-25 |
| BOX714 | - | 2 | 2026-05-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | BOX738 | - | May 30, 01:40 UTC | May 30, 11:00 UTC | 9h 20m |
| 2026-05-29 | BOX389 | EMA → CVG | May 29, 20:35 UTC | May 29, 22:00 UTC | 1h 25m |
| 2026-05-29 | BOX389 | EMA → CVG | May 29, 10:55 UTC | May 29, 18:05 UTC | 7h 10m |
| 2026-05-28 | BOX394 | LEJ → CVG | May 28, 21:10 UTC | May 29, 04:30 UTC | 7h 20m |
| 2026-05-28 | BOX389 | EMA → CVG | May 28, 17:25 UTC | May 28, 18:30 UTC | 1h 5m |
| 2026-05-28 | BOX389 | EMA → CVG | May 28, 11:25 UTC | May 28, 13:35 UTC | 2h 10m |
| 2026-05-27 | BOX394 | LEJ → CVG | May 27, 21:50 UTC | May 28, 05:00 UTC | 7h 10m |
| 2026-05-27 | BOX389 | EMA → CVG | May 27, 11:10 UTC | May 27, 18:05 UTC | 6h 55m |
| 2026-05-26 | BOX394 | LEJ → CVG | May 26, 21:09 UTC | May 27, 04:55 UTC | 7h 45m |
| 2026-05-26 | BOX192 | LEJ → EMA | May 26, 17:09 UTC | May 26, 18:50 UTC | 1h 40m |
| 2026-05-25 | BOX709 | - | May 25, 23:49 UTC | May 26, 13:54 UTC | 14h 5m |
| 2026-05-25 | BOX709 | - | May 25, 22:15 UTC | May 25, 22:30 UTC | 15m |
| 2026-05-25 | BOX722 | - | May 25, 08:45 UTC | May 25, 16:15 UTC | 7h 30m |
| 2026-05-24 | BOX722 | - | May 24, 23:00 UTC | May 25, 05:35 UTC | 6h 35m |
| 2026-05-24 | BOX509 | HKG → LEJ | May 24, 11:00 UTC | May 24, 14:45 UTC | 3h 45m |
| 2026-05-24 | BOX509 | HKG → LEJ | May 24, 03:05 UTC | May 24, 03:15 UTC | 10m |
| 2026-05-22 | BOX728 | - | May 22, 07:35 UTC | May 22, 23:55 UTC | 16h 20m |
| 2026-05-21 | BOX397 | CVG → LEJ | May 21, 19:20 UTC | May 22, 02:50 UTC | 7h 30m |
| 2026-05-21 | BOX585 | SZX → LAX | May 21, 12:40 UTC | May 21, 16:10 UTC | 3h 30m |
| 2026-05-21 | BOX585 | SZX → LAX | May 21, 00:45 UTC | May 21, 10:35 UTC | 9h 50m |
| 2026-05-20 | BOX585 | SZX → LAX | May 20, 22:35 UTC | May 20, 22:45 UTC | 10m |
| 2026-05-20 | BOX584 | - | May 20, 13:05 UTC | May 20, 15:20 UTC | 2h 15m |
| 2026-05-20 | BOX584 | - | May 20, 10:55 UTC | May 20, 11:10 UTC | 15m |
| 2026-05-20 | BOX584 | - | May 20, 09:10 UTC | May 20, 09:30 UTC | 20m |
| 2026-05-20 | BOX519 | HKG → LEJ | May 20, 02:15 UTC | May 20, 06:20 UTC | 4h 6m |
| 2026-05-19 | BOX519 | HKG → LEJ | May 19, 17:10 UTC | May 20, 02:05 UTC | 8h 55m |
| 2026-05-19 | BOX519 | HKG → LEJ | May 19, 09:10 UTC | May 19, 09:25 UTC | 15m |
| 2026-05-19 | BOX594 | HKG → CVG | May 19, 02:25 UTC | May 19, 06:15 UTC | 3h 50m |
| 2026-05-18 | BOX594 | HKG → CVG | May 18, 11:25 UTC | May 18, 23:50 UTC | 12h 24m |
| 2026-05-18 | BOX126 | FRA → LEJ | May 18, 07:35 UTC | May 18, 08:10 UTC | 35m |
| 2026-05-17 | BOX473 | LAX → FRA | May 17, 10:05 UTC | May 17, 19:30 UTC | 9h 25m |
| 2026-05-17 | BOX473 | LAX → FRA | May 17, 04:35 UTC | May 17, 06:55 UTC | 2h 20m |
| 2026-05-16 | BOX472 | FRA → LAX | May 16, 14:46 UTC | May 17, 02:00 UTC | 11h 15m |
| 2026-05-15 | BOX613 | - | May 15, 11:55 UTC | May 16, 04:20 UTC | 16h 24m |
| 2026-05-14 | BOX614 | FRA → HKG | May 14, 19:40 UTC | May 15, 08:55 UTC | 13h 15m |
| 2026-05-14 | BOX443 | DFW → FRA | May 14, 07:35 UTC | May 14, 15:40 UTC | 8h 5m |
| 2026-05-14 | BOX442 | ATL → DFW | May 14, 03:05 UTC | May 14, 04:10 UTC | 1h 5m |
| 2026-05-13 | BOX442 | ATL → DFW | May 13, 17:05 UTC | May 14, 01:00 UTC | 7h 55m |
| 2026-05-13 | BOX465 | IAH → FRA | May 13, 04:45 UTC | May 13, 14:15 UTC | 9h 30m |
| 2026-05-12 | BOX464 | FRA → YYZ | May 12, 23:10 UTC | May 13, 01:40 UTC | 2h 30m |
| 2026-05-12 | BOX464 | FRA → YYZ | May 12, 12:50 UTC | May 12, 21:05 UTC | 8h 15m |
| 2026-05-11 | BOX458 | FRA → ATL | May 11, 14:20 UTC | May 12, 09:10 UTC | 18h 51m |
| 2026-05-11 | BOX458 | FRA → ATL | May 11, 13:45 UTC | May 12, 09:10 UTC | 19h 26m |
| 2026-05-11 | BOX457 | ATL → FRA | May 11, 02:30 UTC | May 11, 10:25 UTC | 7h 55m |
| 2026-05-10 | BOX456 | JFK → DFW | May 10, 14:54 UTC | May 10, 23:55 UTC | 9h 0m |
| 2026-05-09 | BOX623 | BOM → FRA | May 9, 18:20 UTC | May 10, 12:19 UTC | 18h 0m |
| 2026-05-09 | BOX623 | BOM → FRA | May 9, 16:20 UTC | May 10, 12:19 UTC | 20h 0m |
| 2026-05-09 | BOX623 | BOM → FRA | May 9, 14:40 UTC | May 10, 12:19 UTC | 21h 40m |
| 2026-05-09 | BOX174 | LEJ → FRA | May 9, 11:20 UTC | May 9, 12:05 UTC | 45m |
| 2026-05-08 | BOX571 | LEJ → LEJ | May 8, 14:20 UTC | May 9, 09:35 UTC | 19h 15m |
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-AALY page for operator, model, and routing details .