sensors Mode-S transponder
C84129
ICAO 24-bit transponder address
Currently assigned to ZK-SWL · operated by Southern Wings Limited
- Hex
- C84129
- Octal
- 62040451
- Decimal
- 13,123,881
- Tail
- ZK-SWL
- Type
- PA44
- Flights observed
- 26
- Distinct callsigns
- 1
- Country
- -
- Last broadcast
- 5h ago
Last known position
Callsign history 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| ZKSWL | - | 26 | 2026-05-30 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | ZKSWL | - | May 30, 03:40 UTC | May 30, 05:25 UTC | 1h 45m |
| 2026-05-29 | ZKSWL | - | May 29, 23:15 UTC | May 30, 01:35 UTC | 2h 20m |
| 2026-05-23 | ZKSWL | - | May 23, 02:20 UTC | May 23, 03:30 UTC | 1h 9m |
| 2026-05-22 | ZKSWL | - | May 22, 02:00 UTC | May 22, 03:25 UTC | 1h 25m |
| 2026-05-20 | ZKSWL | - | May 20, 03:55 UTC | May 20, 04:35 UTC | 40m |
| 2026-05-19 | ZKSWL | - | May 19, 22:20 UTC | May 20, 00:20 UTC | 2h 0m |
| 2026-05-19 | ZKSWL | - | May 19, 04:20 UTC | May 19, 05:10 UTC | 50m |
| 2026-05-18 | ZKSWL | AMZ → AMZ | May 18, 22:10 UTC | May 19, 00:10 UTC | 2h 0m |
| 2026-05-18 | ZKSWL | - | May 18, 04:05 UTC | May 18, 04:55 UTC | 50m |
| 2026-05-17 | ZKSWL | - | May 17, 22:30 UTC | May 18, 00:25 UTC | 1h 55m |
| 2026-05-08 | ZKSWL | - | May 8, 00:44 UTC | May 8, 01:24 UTC | 40m |
| 2026-05-06 | ZKSWL | AMZ → AMZ | May 6, 04:25 UTC | May 6, 05:10 UTC | 45m |
| 2026-05-04 | ZKSWL | - | May 4, 22:05 UTC | May 4, 22:55 UTC | 50m |
| 2026-04-30 | ZKSWL | - | Apr 30, 21:10 UTC | Apr 30, 21:50 UTC | 40m |
| 2026-04-24 | ZKSWL | - | Apr 24, 04:30 UTC | Apr 24, 06:00 UTC | 1h 30m |
| 2026-04-23 | ZKSWL | - | Apr 23, 22:50 UTC | Apr 24, 00:10 UTC | 1h 20m |
| 2026-04-23 | ZKSWL | - | Apr 23, 00:45 UTC | Apr 23, 02:15 UTC | 1h 30m |
| 2026-04-21 | ZKSWL | - | Apr 21, 03:35 UTC | Apr 21, 04:30 UTC | 55m |
| 2026-04-21 | ZKSWL | - | Apr 21, 01:10 UTC | Apr 21, 02:30 UTC | 1h 20m |
| 2026-04-19 | ZKSWL | - | Apr 19, 22:05 UTC | Apr 19, 23:25 UTC | 1h 20m |
| 2026-04-17 | ZKSWL | - | Apr 17, 03:20 UTC | Apr 17, 03:45 UTC | 25m |
| 2026-04-17 | ZKSWL | - | Apr 17, 03:05 UTC | Apr 17, 03:15 UTC | 10m |
| 2026-04-16 | ZKSWL | - | Apr 16, 23:20 UTC | Apr 17, 00:05 UTC | 45m |
| 2026-04-16 | ZKSWL | - | Apr 16, 22:34 UTC | Apr 16, 23:10 UTC | 35m |
| 2026-04-16 | ZKSWL | - | Apr 16, 01:10 UTC | Apr 16, 02:04 UTC | 55m |
| 2026-04-16 | ZKSWL | - | Apr 16, 00:30 UTC | Apr 16, 01:05 UTC | 35m |
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-SWL page for operator, model, and routing details .