Apparatus

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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
Broadcasting now · callsign ANZ28 · 20,000 ft
Flights observed
204
Distinct callsigns
20
Country
NZ
Last broadcast
Jul 26, 15:20 UTC

Current position

C81D82 is currently broadcasting. Map zoomed to live 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 25 2026-07-26
ANZ281 - 25 2026-07-14
ANZ283 Air New Zealand 24 2026-06-20
ANZ284 - 18 2026-06-19
ANZ5 Air New Zealand 17 2026-07-22
ANZ6 Air New Zealand 16 2026-07-21
ANZ293 Air New Zealand 9 2026-07-25
ANZ122 Air New Zealand 8 2026-07-21
ANZ121 Air New Zealand 7 2026-07-20
ANZ104 Air New Zealand 6 2026-07-25
ANZ292 - 5 2026-07-09
ANZ103 Air New Zealand 5 2026-07-24
ANZ953 - 4 2026-07-15
ANZ945 - 4 2026-06-24
ANZ3 Air New Zealand 4 2026-04-27
ANZ24 Air New Zealand 4 2026-07-23
ANZ23 Air New Zealand 4 2026-07-24
ANZ99 Air New Zealand 3 2026-05-17
ANZ90 Air New Zealand 3 2026-05-18
ANZ946 Air New Zealand 2 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANZ282 AKL → SIN Jul 26, 12:15 UTCJul 26, 15:20 UTC3h 5m
2026-07-25 ANZ293 DPS → AKL Jul 25, 14:50 UTCJul 26, 06:40 UTC15h 51m
2026-07-25 ANZ293 DPS → AKL Jul 25, 12:10 UTCJul 26, 06:40 UTC18h 31m
2026-07-25 ANZ293 DPS → AKL Jul 25, 08:05 UTCJul 26, 06:30 UTC22h 25m
2026-07-25 ANZ104 SYD → AKL Jul 25, 02:45 UTCJul 25, 05:15 UTC2h 30m
2026-07-24 ANZ103 AKL → SYD Jul 24, 21:40 UTCJul 25, 01:00 UTC3h 20m
2026-07-24 ANZ23 YVR → AKL Jul 24, 04:30 UTCJul 24, 17:35 UTC13h 5m
2026-07-23 ANZ24 AKL → YVR Jul 23, 09:10 UTCJul 23, 21:30 UTC12h 20m
2026-07-22 ANZ5 LAX → AKL Jul 22, 16:50 UTCJul 22, 17:30 UTC40m
2026-07-21 ANZ6 AKL → LAX Jul 21, 08:35 UTCJul 21, 20:20 UTC11h 45m
2026-07-21 ANZ122 MEL → AKL Jul 21, 03:00 UTCJul 21, 05:55 UTC2h 55m
2026-07-20 ANZ121 AKL → MEL Jul 20, 21:35 UTCJul 21, 01:15 UTC3h 40m
2026-07-20 ANZ5 LAX → AKL Jul 20, 05:40 UTCJul 20, 17:50 UTC12h 10m
2026-07-19 ANZ6 - Jul 19, 09:35 UTCJul 19, 21:10 UTC11h 35m
2026-07-19 ANZ122 MEL → AKL Jul 19, 02:30 UTCJul 19, 05:40 UTC3h 10m
2026-07-18 ANZ121 AKL → MEL Jul 18, 21:20 UTCJul 19, 00:45 UTC3h 25m
2026-07-18 ANZ23 YVR → AKL Jul 18, 04:20 UTCJul 18, 17:05 UTC12h 45m
2026-07-17 ANZ24 - Jul 17, 08:40 UTCJul 17, 21:10 UTC12h 30m
2026-07-15 ANZ953 - Jul 15, 22:55 UTCJul 16, 05:55 UTC7h 0m
2026-07-15 ANZ903 - Jul 15, 15:00 UTCJul 15, 20:35 UTC5h 35m
2026-07-15 ANZ902 - Jul 15, 08:00 UTCJul 15, 12:15 UTC4h 15m
2026-07-14 ANZ953 - Jul 14, 22:50 UTCJul 15, 05:35 UTC6h 45m
2026-07-14 ANZ281 - Jul 14, 09:35 UTCJul 14, 09:55 UTC20m
2026-07-14 ANZ281 - Jul 14, 00:55 UTCJul 14, 07:55 UTC7h 0m
2026-07-13 ANZ282 - Jul 13, 22:10 UTCJul 13, 22:20 UTC10m
2026-07-13 ANZ282 - Jul 13, 12:05 UTCJul 13, 18:35 UTC6h 30m
2026-07-13 ANZ281 - Jul 13, 09:25 UTCJul 13, 09:45 UTC20m
2026-07-13 ANZ281 - Jul 13, 07:05 UTCJul 13, 07:55 UTC50m
2026-07-13 ANZ281 - Jul 13, 00:55 UTCJul 13, 01:05 UTC10m
2026-07-12 ANZ282 - Jul 12, 22:30 UTCJul 12, 22:45 UTC15m
2026-07-12 ANZ282 - Jul 12, 12:15 UTCJul 12, 15:50 UTC3h 35m
2026-07-12 ANZ281 - Jul 12, 09:35 UTCJul 12, 09:50 UTC15m
2026-07-12 ANZ281 - Jul 12, 07:10 UTCJul 12, 07:55 UTC45m
2026-07-11 ANZ282 - Jul 11, 22:35 UTCJul 11, 22:45 UTC10m
2026-07-11 ANZ282 - Jul 11, 12:15 UTCJul 11, 15:25 UTC3h 10m
2026-07-11 ANZ281 - Jul 11, 09:20 UTCJul 11, 09:40 UTC20m
2026-07-11 ANZ281 - Jul 11, 07:05 UTCJul 11, 07:45 UTC40m
2026-07-11 ANZ281 - Jul 11, 01:00 UTCJul 11, 01:10 UTC10m
2026-07-10 ANZ282 - Jul 10, 22:30 UTCJul 10, 22:40 UTC10m
2026-07-10 ANZ282 - Jul 10, 12:20 UTCJul 10, 15:25 UTC3h 5m
2026-07-09 ANZ293 - Jul 9, 12:35 UTCJul 10, 07:05 UTC18h 30m
2026-07-09 ANZ293 - Jul 9, 11:10 UTCJul 10, 07:05 UTC19h 55m
2026-07-09 ANZ292 - Jul 9, 08:35 UTCJul 10, 07:05 UTC22h 30m
2026-07-09 ANZ292 - Jul 9, 08:25 UTCJul 10, 06:30 UTC22h 5m
2026-07-09 ANZ104 SYD → AKL Jul 9, 02:30 UTCJul 9, 05:00 UTC2h 30m
2026-07-08 ANZ103 - Jul 8, 21:20 UTCJul 9, 00:30 UTC3h 10m
2026-07-08 ANZ5 LAX → AKL Jul 8, 05:25 UTCJul 8, 17:40 UTC12h 15m
2026-07-07 ANZ6 - Jul 7, 08:45 UTCJul 7, 20:20 UTC11h 35m
2026-07-07 ANZ122 MEL → AKL Jul 7, 03:15 UTCJul 7, 06:20 UTC3h 5m
2026-07-06 ANZ121 - Jul 6, 21:20 UTCJul 7, 01:20 UTC4h 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 .

Mode-S C81D82 frequently asked

What is Mode-S code C81D82?
C81D82 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-OKO.
Where is Mode-S C81D82 registered?
Mode-S code C81D82 is allocated to New Zealand (NZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C81D82 broadcasting right now?
Yes. Mode-S C81D82 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81D82, octal 62016602, decimal 13,114,754.
What flights does C81D82 operate?
Mode-S C81D82 has broadcast 20 distinct callsigns, including ANZ282, ANZ281, ANZ283, ANZ284, ANZ5.