sensors Mode-S transponder
3E7E5B
ICAO 24-bit transponder address · allocated to Germany
Currently assigned to D-KNAX · SCHEIBE SF-25 Falke
- Hex
- 3E7E5B
- Octal
- 17477133
- Decimal
- 4,095,579
- Country
- DE
- Tail
- D-KNAX
- Type
- SF25
- Flights observed
- 45
- Distinct callsigns
- 1
- Country
- DE
- Last broadcast
- Jul 25, 12:45 UTC
Last known position
Country allocation
The ICAO 24-bit address 3E7E5B 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| DKNAX | - | 45 | 2026-07-25 |
Recent flights last 45
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | DKNAX | - | Jul 25, 12:10 UTC | Jul 25, 12:45 UTC | 35m |
| 2026-07-25 | DKNAX | - | Jul 25, 08:55 UTC | Jul 25, 09:40 UTC | 45m |
| 2026-07-24 | DKNAX | - | Jul 24, 12:10 UTC | Jul 24, 12:30 UTC | 20m |
| 2026-07-21 | DKNAX | QLG → QLG | Jul 21, 13:25 UTC | Jul 21, 14:00 UTC | 35m |
| 2026-07-20 | DKNAX | QLG → QLG | Jul 20, 07:25 UTC | Jul 20, 08:00 UTC | 35m |
| 2026-07-18 | DKNAX | - | Jul 18, 10:25 UTC | Jul 18, 10:40 UTC | 15m |
| 2026-07-15 | DKNAX | - | Jul 15, 10:00 UTC | Jul 15, 10:35 UTC | 35m |
| 2026-07-15 | DKNAX | - | Jul 15, 07:55 UTC | Jul 15, 08:10 UTC | 15m |
| 2026-07-13 | DKNAX | - | Jul 13, 14:50 UTC | Jul 13, 15:40 UTC | 50m |
| 2026-07-12 | DKNAX | - | Jul 12, 08:05 UTC | Jul 12, 09:25 UTC | 1h 20m |
| 2026-07-11 | DKNAX | - | Jul 11, 09:25 UTC | Jul 11, 09:45 UTC | 20m |
| 2026-07-11 | DKNAX | - | Jul 11, 07:40 UTC | Jul 11, 07:50 UTC | 10m |
| 2026-07-10 | DKNAX | - | Jul 10, 14:10 UTC | Jul 10, 15:15 UTC | 1h 5m |
| 2026-07-09 | DKNAX | - | Jul 9, 16:35 UTC | Jul 9, 17:40 UTC | 1h 5m |
| 2026-07-09 | DKNAX | QLG → QLG | Jul 9, 11:55 UTC | Jul 9, 12:55 UTC | 1h 0m |
| 2026-07-09 | DKNAX | - | Jul 9, 08:45 UTC | Jul 9, 10:10 UTC | 1h 25m |
| 2026-07-02 | DKNAX | QLG → QLG | Jul 2, 09:35 UTC | Jul 2, 10:45 UTC | 1h 10m |
| 2026-06-29 | DKNAX | - | Jun 29, 06:24 UTC | Jun 29, 07:50 UTC | 1h 25m |
| 2026-06-26 | DKNAX | - | Jun 26, 09:45 UTC | Jun 26, 10:39 UTC | 55m |
| 2026-06-26 | DKNAX | - | Jun 26, 07:55 UTC | Jun 26, 08:34 UTC | 40m |
| 2026-06-25 | DKNAX | - | Jun 25, 07:25 UTC | Jun 25, 08:20 UTC | 55m |
| 2026-06-18 | DKNAX | - | Jun 18, 09:00 UTC | Jun 18, 10:30 UTC | 1h 30m |
| 2026-06-17 | DKNAX | - | Jun 17, 12:50 UTC | Jun 17, 14:05 UTC | 1h 15m |
| 2026-06-15 | DKNAX | - | Jun 15, 08:35 UTC | Jun 15, 09:49 UTC | 1h 15m |
| 2026-06-08 | DKNAX | - | Jun 8, 14:00 UTC | Jun 8, 14:55 UTC | 55m |
| 2026-06-04 | DKNAX | - | Jun 4, 12:30 UTC | Jun 4, 12:45 UTC | 15m |
| 2026-06-04 | DKNAX | - | Jun 4, 10:10 UTC | Jun 4, 10:20 UTC | 10m |
| 2026-05-30 | DKNAX | - | May 30, 14:30 UTC | May 30, 15:40 UTC | 1h 10m |
| 2026-05-26 | DKNAX | - | May 26, 11:54 UTC | May 26, 12:24 UTC | 30m |
| 2026-05-17 | DKNAX | - | May 17, 14:01 UTC | May 17, 15:25 UTC | 1h 25m |
| 2026-05-17 | DKNAX | - | May 17, 09:55 UTC | May 17, 11:30 UTC | 1h 35m |
| 2026-05-09 | DKNAX | - | May 9, 07:50 UTC | May 9, 08:40 UTC | 50m |
| 2026-05-08 | DKNAX | - | May 8, 14:45 UTC | May 8, 15:25 UTC | 40m |
| 2026-05-08 | DKNAX | - | May 8, 13:15 UTC | May 8, 13:55 UTC | 40m |
| 2026-05-01 | DKNAX | - | May 1, 09:05 UTC | May 1, 12:00 UTC | 2h 55m |
| 2026-04-28 | DKNAX | - | Apr 28, 12:15 UTC | Apr 28, 12:50 UTC | 35m |
| 2026-04-26 | DKNAX | QLG → QLG | Apr 26, 11:50 UTC | Apr 26, 12:45 UTC | 55m |
| 2026-04-26 | DKNAX | - | Apr 26, 10:55 UTC | Apr 26, 11:20 UTC | 25m |
| 2026-04-26 | DKNAX | - | Apr 26, 09:10 UTC | Apr 26, 10:00 UTC | 50m |
| 2026-04-24 | DKNAX | - | Apr 24, 11:40 UTC | Apr 24, 12:45 UTC | 1h 5m |
| 2026-04-23 | DKNAX | - | Apr 23, 11:25 UTC | Apr 23, 12:05 UTC | 40m |
| 2026-04-23 | DKNAX | - | Apr 23, 09:45 UTC | Apr 23, 10:20 UTC | 35m |
| 2026-04-22 | DKNAX | QLG → QLG | Apr 22, 14:10 UTC | Apr 22, 15:10 UTC | 1h 0m |
| 2026-04-17 | DKNAX | - | Apr 17, 13:20 UTC | Apr 17, 14:15 UTC | 55m |
| 2026-04-15 | DKNAX | - | Apr 15, 13:40 UTC | Apr 15, 14:35 UTC | 55m |
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-KNAX page for operator, model, and routing details .