sensors Mode-S transponder
C81A75
ICAO 24-bit transponder address · allocated to New Zealand
Currently assigned to ZK-INP · ROBINSON R-44 Raven
- Hex
- C81A75
- Octal
- 62015165
- Decimal
- 13,113,973
- Country
- NZ
- Tail
- ZK-INP
- Type
- R44
- Flights observed
- 39
- Distinct callsigns
- 1
- Country
- NZ
- Last broadcast
- 23h ago
Last known position
Country allocation
The ICAO 24-bit address C81A75 falls within the block assigned to New Zealand (NZ) by ICAO Annex 10, Volume III. Every aircraft registered in New Zealand 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 |
|---|---|---|---|
| ZKINP | - | 39 | 2026-07-18 |
Recent flights last 39
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | ZKINP | - | Jul 18, 04:50 UTC | Jul 18, 05:30 UTC | 40m |
| 2026-07-16 | ZKINP | - | Jul 16, 21:55 UTC | Jul 16, 22:19 UTC | 25m |
| 2026-07-08 | ZKINP | - | Jul 8, 03:05 UTC | Jul 8, 03:40 UTC | 35m |
| 2026-07-03 | ZKINP | TRG → TRG | Jul 3, 22:40 UTC | Jul 3, 23:25 UTC | 45m |
| 2026-06-30 | ZKINP | TRG → TRG | Jun 30, 00:45 UTC | Jun 30, 00:55 UTC | 10m |
| 2026-06-29 | ZKINP | TRG → TRG | Jun 29, 04:25 UTC | Jun 29, 05:24 UTC | 1h 0m |
| 2026-06-29 | ZKINP | - | Jun 29, 01:00 UTC | Jun 29, 01:20 UTC | 20m |
| 2026-06-23 | ZKINP | TRG → TRG | Jun 23, 23:55 UTC | Jun 24, 00:05 UTC | 10m |
| 2026-06-22 | ZKINP | TRG → TRG | Jun 22, 21:59 UTC | Jun 22, 22:30 UTC | 30m |
| 2026-06-22 | ZKINP | TRG → TRG | Jun 22, 02:10 UTC | Jun 22, 02:54 UTC | 45m |
| 2026-06-16 | ZKINP | - | Jun 16, 03:20 UTC | Jun 16, 04:05 UTC | 45m |
| 2026-06-13 | ZKINP | - | Jun 13, 21:25 UTC | Jun 13, 21:35 UTC | 10m |
| 2026-06-10 | ZKINP | TRG → TRG | Jun 10, 23:15 UTC | Jun 10, 23:25 UTC | 10m |
| 2026-06-10 | ZKINP | - | Jun 10, 06:20 UTC | Jun 10, 07:15 UTC | 55m |
| 2026-06-09 | ZKINP | - | Jun 9, 06:45 UTC | Jun 9, 07:45 UTC | 1h 0m |
| 2026-06-03 | ZKINP | - | Jun 3, 00:50 UTC | Jun 3, 01:10 UTC | 20m |
| 2026-05-28 | ZKINP | TRG → TRG | May 28, 02:00 UTC | May 28, 02:30 UTC | 30m |
| 2026-05-26 | ZKINP | TRG → TRG | May 26, 23:19 UTC | May 27, 00:00 UTC | 40m |
| 2026-05-25 | ZKINP | - | May 25, 23:10 UTC | May 25, 23:24 UTC | 15m |
| 2026-05-17 | ZKINP | - | May 17, 21:45 UTC | May 17, 22:01 UTC | 15m |
| 2026-05-16 | ZKINP | - | May 16, 23:35 UTC | May 17, 02:00 UTC | 2h 25m |
| 2026-05-16 | ZKINP | - | May 16, 01:00 UTC | May 16, 01:10 UTC | 10m |
| 2026-05-13 | ZKINP | - | May 13, 20:15 UTC | May 13, 21:20 UTC | 1h 5m |
| 2026-05-08 | ZKINP | - | May 8, 23:20 UTC | May 8, 23:40 UTC | 20m |
| 2026-05-05 | ZKINP | - | May 5, 01:35 UTC | May 5, 02:25 UTC | 50m |
| 2026-05-04 | ZKINP | - | May 4, 23:40 UTC | May 5, 00:00 UTC | 20m |
| 2026-05-03 | ZKINP | - | May 3, 01:10 UTC | May 3, 01:25 UTC | 15m |
| 2026-05-02 | ZKINP | - | May 2, 04:40 UTC | May 2, 05:40 UTC | 1h 0m |
| 2026-05-01 | ZKINP | - | May 1, 04:05 UTC | May 1, 04:15 UTC | 10m |
| 2026-04-28 | ZKINP | TRG → TRG | Apr 28, 22:45 UTC | Apr 28, 23:00 UTC | 15m |
| 2026-04-25 | ZKINP | - | Apr 25, 22:50 UTC | Apr 25, 23:00 UTC | 10m |
| 2026-04-25 | ZKINP | - | Apr 25, 22:05 UTC | Apr 25, 22:15 UTC | 10m |
| 2026-04-25 | ZKINP | - | Apr 25, 03:20 UTC | Apr 25, 03:40 UTC | 20m |
| 2026-04-23 | ZKINP | - | Apr 23, 20:50 UTC | Apr 23, 21:35 UTC | 45m |
| 2026-04-22 | ZKINP | - | Apr 22, 02:50 UTC | Apr 22, 03:00 UTC | 10m |
| 2026-04-22 | ZKINP | - | Apr 22, 01:55 UTC | Apr 22, 02:15 UTC | 20m |
| 2026-04-21 | ZKINP | - | Apr 21, 23:45 UTC | Apr 22, 00:50 UTC | 1h 5m |
| 2026-04-20 | ZKINP | - | Apr 20, 04:15 UTC | Apr 20, 04:25 UTC | 10m |
| 2026-04-16 | ZKINP | - | Apr 16, 22:54 UTC | Apr 16, 23:10 UTC | 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 ZK-INP page for operator, model, and routing details .