sensors Mode-S transponder
3C4591
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-AALQ · BOEING 777-200LR
- Hex
- 3C4591
- Octal
- 17042621
- Decimal
- 3,949,969
- Country
- DE
- Tail
- D-AALQ
- Type
- B77L
- Flights observed
- 145
- Distinct callsigns
- 20
- Country
- DE
- Last broadcast
- 7h ago
Last known position
Country allocation
The ICAO 24-bit address 3C4591 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 |
|---|---|---|---|
| BOX620 | AeroLogic | 10 | 2026-05-26 |
| BOX621 | AeroLogic | 9 | 2026-05-26 |
| BOX530 | AeroLogic | 8 | 2026-05-20 |
| BOX720 | - | 7 | 2026-04-16 |
| BOX586 | AeroLogic | 7 | 2026-05-18 |
| BOX589 | AeroLogic | 6 | 2026-05-21 |
| BOX395 | - | 6 | 2026-04-15 |
| BOX735 | - | 5 | 2026-05-15 |
| BOX712 | - | 5 | 2026-05-16 |
| BOX587 | AeroLogic | 5 | 2026-05-19 |
| BOX570 | AeroLogic | 5 | 2026-04-27 |
| BOX531 | AeroLogic | 5 | 2026-05-20 |
| BOX442 | AeroLogic | 5 | 2026-05-25 |
| BOX733 | - | 4 | 2026-05-03 |
| BOX584 | - | 4 | 2026-04-21 |
| BOX571 | AeroLogic | 4 | 2026-04-27 |
| BOX519 | AeroLogic | 4 | 2026-04-29 |
| BOX513 | AeroLogic | 4 | 2026-04-17 |
| BOX390 | AeroLogic | 4 | 2026-04-15 |
| BOX619 | AeroLogic | 3 | 2026-05-28 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | BOX617 | HKG → LEJ | May 29, 17:10 UTC | May 30, 03:30 UTC | 10h 20m |
| 2026-05-28 | BOX619 | HAN → SGN | May 28, 15:40 UTC | May 29, 07:55 UTC | 16h 15m |
| 2026-05-28 | BOX619 | HAN → SGN | May 28, 06:45 UTC | May 28, 23:10 UTC | 16h 25m |
| 2026-05-28 | BOX619 | HAN → SGN | May 28, 03:45 UTC | May 28, 23:10 UTC | 19h 25m |
| 2026-05-27 | BOX618 | FRA → MAA | May 27, 23:15 UTC | May 27, 23:25 UTC | 10m |
| 2026-05-27 | BOX618 | FRA → MAA | May 27, 15:05 UTC | May 27, 21:50 UTC | 6h 45m |
| 2026-05-26 | BOX621 | HAN → SGN | May 26, 06:20 UTC | May 27, 03:34 UTC | 21h 15m |
| 2026-05-26 | BOX621 | HAN → SGN | May 26, 02:55 UTC | May 27, 02:14 UTC | 23h 20m |
| 2026-05-26 | BOX620 | FRA → SGN | May 26, 00:19 UTC | May 27, 00:14 UTC | 23h 55m |
| 2026-05-25 | BOX620 | FRA → SGN | May 25, 22:19 UTC | May 26, 20:09 UTC | 21h 50m |
| 2026-05-25 | BOX620 | FRA → SGN | May 25, 20:34 UTC | May 26, 20:09 UTC | 23h 35m |
| 2026-05-25 | BOX443 | DFW → FRA | May 25, 08:40 UTC | May 25, 16:25 UTC | 7h 45m |
| 2026-05-25 | BOX442 | ATL → DFW | May 25, 04:15 UTC | May 25, 05:30 UTC | 1h 15m |
| 2026-05-25 | BOX442 | ATL → DFW | May 25, 01:55 UTC | May 25, 02:05 UTC | 10m |
| 2026-05-24 | BOX442 | ATL → DFW | May 24, 18:10 UTC | May 24, 20:10 UTC | 2h 0m |
| 2026-05-24 | BOX459 | ATL → FRA | May 24, 03:50 UTC | May 24, 12:00 UTC | 8h 10m |
| 2026-05-23 | BOX458 | FRA → ATL | May 23, 15:25 UTC | May 24, 00:40 UTC | 9h 16m |
| 2026-05-23 | BOX621 | HAN → SGN | May 23, 01:35 UTC | May 23, 12:25 UTC | 10h 49m |
| 2026-05-22 | BOX621 | HAN → SGN | May 22, 14:45 UTC | May 23, 12:25 UTC | 21h 39m |
| 2026-05-22 | BOX621 | HAN → SGN | May 22, 12:20 UTC | May 23, 12:15 UTC | 23h 54m |
| 2026-05-22 | BOX620 | FRA → SGN | May 22, 12:00 UTC | May 23, 10:15 UTC | 22h 14m |
| 2026-05-22 | BOX620 | FRA → SGN | May 22, 08:25 UTC | May 23, 04:45 UTC | 20h 19m |
| 2026-05-22 | BOX620 | FRA → SGN | May 22, 06:20 UTC | May 23, 04:45 UTC | 22h 24m |
| 2026-05-22 | BOX620 | FRA → SGN | May 22, 05:25 UTC | May 23, 04:15 UTC | 22h 49m |
| 2026-05-22 | BOX170 | LEJ → FRA | May 22, 02:30 UTC | May 22, 03:15 UTC | 45m |
| 2026-05-21 | BOX589 | HKG → LEJ | May 21, 01:10 UTC | May 21, 11:50 UTC | 10h 40m |
| 2026-05-20 | BOX531 | SIN → BLR | May 20, 21:15 UTC | May 20, 23:10 UTC | 1h 55m |
| 2026-05-20 | BOX530 | LEJ → SIN | May 20, 06:30 UTC | May 20, 18:10 UTC | 11h 40m |
| 2026-05-19 | BOX393 | CVG → LEJ | May 19, 19:35 UTC | May 20, 03:30 UTC | 7h 55m |
| 2026-05-19 | BOX587 | SZX → LEJ | May 19, 13:35 UTC | May 19, 17:05 UTC | 3h 30m |
| 2026-05-19 | BOX587 | SZX → LEJ | May 19, 00:55 UTC | May 19, 10:55 UTC | 10h 0m |
| 2026-05-18 | BOX587 | SZX → LEJ | May 18, 22:35 UTC | May 18, 22:45 UTC | 10m |
| 2026-05-18 | BOX586 | LEJ → BKK | May 18, 18:25 UTC | May 18, 18:40 UTC | 14m |
| 2026-05-18 | BOX586 | LEJ → BKK | May 18, 16:25 UTC | May 18, 16:55 UTC | 30m |
| 2026-05-17 | BOX586 | LEJ → BKK | May 17, 21:15 UTC | May 18, 11:40 UTC | 14h 25m |
| 2026-05-17 | BOX707 | HKG → LEJ | May 17, 00:15 UTC | May 17, 14:30 UTC | 14h 15m |
| 2026-05-16 | BOX707 | HKG → LEJ | May 16, 22:30 UTC | May 16, 22:45 UTC | 15m |
| 2026-05-16 | BOX712 | LEJ → HKG | May 16, 04:15 UTC | May 16, 19:20 UTC | 15h 6m |
| 2026-05-15 | BOX735 | - | May 15, 08:10 UTC | May 15, 15:50 UTC | 7h 39m |
| 2026-05-14 | BOX735 | - | May 14, 22:30 UTC | May 15, 02:45 UTC | 4h 15m |
| 2026-05-14 | BOX712 | - | May 14, 19:45 UTC | May 14, 20:10 UTC | 25m |
| 2026-05-14 | BOX712 | - | May 14, 05:05 UTC | May 14, 17:55 UTC | 12h 50m |
| 2026-05-13 | BOX555 | - | May 13, 07:15 UTC | May 13, 14:55 UTC | 7h 40m |
| 2026-05-12 | BOX555 | - | May 12, 22:20 UTC | May 13, 04:20 UTC | 6h 0m |
| 2026-05-12 | BOX554 | LEJ → TPE | May 12, 07:45 UTC | May 12, 20:05 UTC | 12h 20m |
| 2026-05-12 | BOX911 | LEJ → FRA | May 12, 03:45 UTC | May 12, 04:30 UTC | 45m |
| 2026-05-11 | BOX443 | DFW → FRA | May 11, 08:45 UTC | May 11, 16:10 UTC | 7h 25m |
| 2026-05-11 | BOX442 | ATL → DFW | May 11, 04:15 UTC | May 11, 05:30 UTC | 1h 15m |
| 2026-05-10 | BOX442 | ATL → DFW | May 10, 18:05 UTC | May 11, 02:00 UTC | 7h 55m |
| 2026-05-10 | BOX445 | ORD → FRA | May 10, 03:40 UTC | May 10, 11:20 UTC | 7h 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-AALQ page for operator, model, and routing details .