sensors Mode-S transponder
C81D82
ICAO 24-bit transponder address · allocated to New Zealand
Currently assigned to ZK-OKO · BOEING 777-300ER
- Hex
- C81D82
- Octal
- 62016602
- Decimal
- 13,114,754
- Country
- NZ
- Tail
- ZK-OKO
- Type
- B77W
- Flights observed
- 93
- Distinct callsigns
- 20
- Country
- NZ
- Last broadcast
- 3h ago
Current position
Country allocation
The ICAO 24-bit address C81D82 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| ANZ282 | Air New Zealand | 14 | 2026-05-28 |
| ANZ281 | Air New Zealand | 13 | 2026-05-29 |
| ANZ283 | Air New Zealand | 11 | 2026-05-24 |
| ANZ284 | Air New Zealand | 9 | 2026-05-24 |
| ANZ6 | Air New Zealand | 6 | 2026-05-13 |
| ANZ5 | Air New Zealand | 6 | 2026-05-14 |
| ANZ3 | Air New Zealand | 4 | 2026-04-27 |
| ANZ122 | Air New Zealand | 4 | 2026-05-05 |
| ANZ99 | Air New Zealand | 3 | 2026-05-17 |
| ANZ945 | Air New Zealand | 3 | 2026-05-29 |
| ANZ90 | Air New Zealand | 3 | 2026-05-18 |
| ANZ121 | Air New Zealand | 3 | 2026-05-05 |
| ANZ946 | Air New Zealand | 2 | 2026-04-29 |
| ANZ4 | Air New Zealand | 2 | 2026-04-26 |
| ANZ24 | Air New Zealand | 2 | 2026-05-11 |
| ANZ23 | Air New Zealand | 2 | 2026-05-12 |
| ANZ95 | Air New Zealand | 1 | 2026-05-02 |
| ANZ94 | Air New Zealand | 1 | 2026-05-03 |
| ANZ146 | Air New Zealand | 1 | 2026-05-07 |
| ANZ145 | Air New Zealand | 1 | 2026-05-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | ANZ945 | RAR → AKL | May 29, 21:05 UTC | May 30, 06:15 UTC | 9h 10m |
| 2026-05-29 | ANZ281 | SIN → AKL | May 29, 08:40 UTC | May 29, 11:40 UTC | 3h 0m |
| 2026-05-28 | ANZ282 | AKL → SIN | May 28, 14:10 UTC | May 28, 17:15 UTC | 3h 5m |
| 2026-05-28 | ANZ281 | SIN → AKL | May 28, 09:05 UTC | May 28, 12:05 UTC | 3h 0m |
| 2026-05-28 | ANZ281 | SIN → AKL | May 28, 02:45 UTC | May 28, 02:55 UTC | 10m |
| 2026-05-27 | ANZ282 | AKL → SIN | May 27, 13:50 UTC | May 27, 18:15 UTC | 4h 25m |
| 2026-05-27 | ANZ281 | SIN → AKL | May 27, 10:10 UTC | May 27, 10:35 UTC | 25m |
| 2026-05-26 | ANZ282 | AKL → SIN | May 26, 12:14 UTC | May 26, 16:40 UTC | 4h 25m |
| 2026-05-26 | ANZ281 | SIN → AKL | May 26, 06:49 UTC | May 26, 10:14 UTC | 3h 25m |
| 2026-05-25 | ANZ282 | AKL → SIN | May 25, 12:05 UTC | May 25, 15:25 UTC | 3h 20m |
| 2026-05-24 | ANZ283 | SIN → AKL | May 24, 17:50 UTC | May 24, 20:40 UTC | 2h 50m |
| 2026-05-24 | ANZ283 | SIN → AKL | May 24, 11:50 UTC | May 24, 12:00 UTC | 10m |
| 2026-05-24 | ANZ284 | AKL → SIN | May 24, 09:35 UTC | May 24, 09:45 UTC | 10m |
| 2026-05-23 | ANZ284 | AKL → SIN | May 23, 23:05 UTC | May 24, 08:55 UTC | 9h 50m |
| 2026-05-23 | ANZ283 | SIN → AKL | May 23, 17:05 UTC | May 23, 20:00 UTC | 2h 56m |
| 2026-05-22 | ANZ284 | AKL → SIN | May 22, 22:25 UTC | May 23, 04:35 UTC | 6h 9m |
| 2026-05-22 | ANZ283 | SIN → AKL | May 22, 17:10 UTC | May 22, 20:05 UTC | 2h 55m |
| 2026-05-22 | ANZ283 | SIN → AKL | May 22, 11:05 UTC | May 22, 11:15 UTC | 10m |
| 2026-05-21 | ANZ284 | AKL → SIN | May 21, 22:55 UTC | May 22, 05:05 UTC | 6h 10m |
| 2026-05-21 | ANZ283 | SIN → AKL | May 21, 17:50 UTC | May 21, 20:50 UTC | 3h 0m |
| 2026-05-21 | ANZ283 | SIN → AKL | May 21, 11:35 UTC | May 21, 11:50 UTC | 15m |
| 2026-05-20 | ANZ284 | AKL → SIN | May 20, 23:10 UTC | May 21, 02:10 UTC | 3h 0m |
| 2026-05-18 | ANZ90 | NRT → AKL | May 18, 11:25 UTC | May 18, 21:45 UTC | 10h 19m |
| 2026-05-17 | ANZ99 | AKL → NRT | May 17, 22:35 UTC | May 18, 08:45 UTC | 10h 10m |
| 2026-05-17 | ANZ283 | SIN → AKL | May 17, 17:20 UTC | May 17, 20:20 UTC | 3h 0m |
| 2026-05-16 | ANZ284 | AKL → SIN | May 16, 22:40 UTC | May 17, 05:00 UTC | 6h 20m |
| 2026-05-16 | ANZ283 | SIN → AKL | May 16, 18:00 UTC | May 16, 20:30 UTC | 2h 30m |
| 2026-05-15 | ANZ284 | AKL → SIN | May 15, 22:45 UTC | May 16, 01:50 UTC | 3h 5m |
| 2026-05-15 | ANZ283 | SIN → AKL | May 15, 17:25 UTC | May 15, 20:20 UTC | 2h 55m |
| 2026-05-14 | ANZ284 | AKL → SIN | May 14, 22:20 UTC | May 15, 01:20 UTC | 3h 0m |
| 2026-05-14 | ANZ5 | LAX → AKL | May 14, 05:35 UTC | May 14, 18:05 UTC | 12h 30m |
| 2026-05-13 | ANZ6 | AKL → LAX | May 13, 09:15 UTC | May 13, 20:40 UTC | 11h 25m |
| 2026-05-12 | ANZ945 | RAR → AKL | May 12, 21:10 UTC | May 13, 06:15 UTC | 9h 5m |
| 2026-05-12 | ANZ23 | YVR → AKL | May 12, 04:10 UTC | May 12, 17:30 UTC | 13h 20m |
| 2026-05-11 | ANZ24 | AKL → YVR | May 11, 08:35 UTC | May 11, 20:50 UTC | 12h 15m |
| 2026-05-10 | ANZ90 | NRT → AKL | May 10, 11:40 UTC | May 10, 21:44 UTC | 10h 5m |
| 2026-05-09 | ANZ99 | AKL → NRT | May 9, 22:34 UTC | May 10, 09:24 UTC | 10h 50m |
| 2026-05-09 | ANZ283 | SIN → AKL | May 9, 02:20 UTC | May 9, 20:05 UTC | 17h 45m |
| 2026-05-08 | ANZ284 | AKL → SIN | May 8, 22:30 UTC | May 9, 01:40 UTC | 3h 10m |
| 2026-05-08 | ANZ5 | LAX → AKL | May 8, 05:24 UTC | May 8, 17:35 UTC | 12h 10m |
| 2026-05-07 | ANZ6 | AKL → LAX | May 7, 08:40 UTC | May 7, 20:30 UTC | 11h 50m |
| 2026-05-07 | ANZ146 | BNE → AKL | May 7, 02:40 UTC | May 7, 05:15 UTC | 2h 35m |
| 2026-05-06 | ANZ145 | AKL → BNE | May 6, 21:35 UTC | May 7, 00:50 UTC | 3h 15m |
| 2026-05-06 | ANZ23 | YVR → AKL | May 6, 04:25 UTC | May 6, 17:40 UTC | 13h 14m |
| 2026-05-05 | ANZ24 | AKL → YVR | May 5, 11:25 UTC | May 5, 23:55 UTC | 12h 30m |
| 2026-05-05 | ANZ122 | MEL → AKL | May 5, 06:15 UTC | May 5, 09:20 UTC | 3h 5m |
| 2026-05-05 | ANZ121 | AKL → MEL | May 5, 01:05 UTC | May 5, 04:30 UTC | 3h 25m |
| 2026-05-04 | ANZ90 | NRT → AKL | May 4, 11:40 UTC | May 4, 21:40 UTC | 10h 1m |
| 2026-05-03 | ANZ99 | AKL → NRT | May 3, 22:45 UTC | May 4, 09:05 UTC | 10h 20m |
| 2026-05-03 | ANZ94 | NRT → AKL | May 3, 07:05 UTC | May 3, 17:05 UTC | 10h 0m |
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-OKO page for operator, model, and routing details .