sensors Mode-S transponder
C8491F
ICAO 24-bit transponder address
Currently assigned to ZK-WUN · operated by New Zealand International Commercial Pilot Academy Limited
- Hex
- C8491F
- Octal
- 62044437
- Decimal
- 13,125,919
- Tail
- ZK-WUN
- Type
- DA42
- Flights observed
- 28
- Distinct callsigns
- 7
- Country
- -
- Last broadcast
- 1d ago
Last known position
Callsign history 7 distinct
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-16 | ZKWUN | - | Jul 16, 20:00 UTC | Jul 16, 20:25 UTC | 25m |
| 2026-07-16 | ADY33 | - | Jul 16, 05:00 UTC | Jul 16, 05:55 UTC | 55m |
| 2026-07-16 | ADY22 | - | Jul 16, 02:15 UTC | Jul 16, 02:30 UTC | 15m |
| 2026-07-15 | ADY13 | - | Jul 15, 05:30 UTC | Jul 15, 06:25 UTC | 55m |
| 2026-07-14 | ADY93 | - | Jul 14, 03:40 UTC | Jul 14, 04:35 UTC | 55m |
| 2026-07-14 | ADY33 | - | Jul 14, 00:30 UTC | Jul 14, 01:25 UTC | 55m |
| 2026-07-11 | ADY13 | - | Jul 11, 21:35 UTC | Jul 11, 22:15 UTC | 40m |
| 2026-07-08 | ADY33 | - | Jul 8, 00:00 UTC | Jul 8, 00:50 UTC | 50m |
| 2026-06-24 | ADY05 | - | Jun 24, 01:04 UTC | Jun 24, 01:44 UTC | 40m |
| 2026-06-23 | ADY05 | - | Jun 23, 00:30 UTC | Jun 23, 01:15 UTC | 45m |
| 2026-06-22 | ADY05 | - | Jun 22, 01:55 UTC | Jun 22, 02:34 UTC | 40m |
| 2026-06-21 | ADY05 | - | Jun 21, 22:29 UTC | Jun 21, 23:40 UTC | 1h 10m |
| 2026-06-19 | ADY05 | - | Jun 19, 23:34 UTC | Jun 20, 01:44 UTC | 2h 10m |
| 2026-06-18 | ADY33 | - | Jun 18, 23:35 UTC | Jun 19, 00:20 UTC | 44m |
| 2026-06-17 | ADY05 | - | Jun 17, 21:40 UTC | Jun 18, 00:35 UTC | 2h 55m |
| 2026-06-16 | ADY13 | - | Jun 16, 01:30 UTC | Jun 16, 02:15 UTC | 45m |
| 2026-06-14 | ADY13 | - | Jun 14, 02:00 UTC | Jun 14, 02:55 UTC | 55m |
| 2026-06-13 | ADY13 | - | Jun 13, 22:00 UTC | Jun 13, 22:55 UTC | 55m |
| 2026-06-13 | ADY13 | - | Jun 13, 02:50 UTC | Jun 13, 03:45 UTC | 55m |
| 2026-06-11 | ADY05 | - | Jun 11, 23:10 UTC | Jun 11, 23:40 UTC | 30m |
| 2026-06-11 | ADY05 | - | Jun 11, 21:35 UTC | Jun 11, 22:10 UTC | 35m |
| 2026-06-11 | ADY05 | - | Jun 11, 02:55 UTC | Jun 11, 04:35 UTC | 1h 40m |
| 2026-06-10 | ADY13 | - | Jun 10, 02:50 UTC | Jun 10, 03:45 UTC | 55m |
| 2026-06-10 | ADY13 | - | Jun 10, 01:30 UTC | Jun 10, 02:05 UTC | 35m |
| 2026-06-09 | ADY04 | - | Jun 9, 20:35 UTC | Jun 9, 21:10 UTC | 35m |
| 2026-06-08 | ADY13 | - | Jun 8, 04:25 UTC | Jun 8, 05:15 UTC | 50m |
| 2026-05-30 | ADY22 | - | May 30, 00:35 UTC | May 30, 01:05 UTC | 30m |
| 2026-05-20 | ADY22 | - | May 20, 04:40 UTC | May 20, 04:50 UTC | 10m |
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 ZK-WUN page for operator, model, and routing details .