Apparatus

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sensors Mode-S transponder

C829AB

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-OYA · AIRBUS A-321neo

Hex
C829AB
Octal
62024653
Decimal
13,117,867
Country
NZ
Tail
ZK-OYA
Type
A21N
No current signal · last broadcast 2h ago
Flights observed
264
Distinct callsigns
20
Country
NZ
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C829AB.

Country allocation

The ICAO 24-bit address C829AB 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
ANZ519 Air New Zealand 25 2026-05-27
ANZ548 Air New Zealand 24 2026-05-27
ANZ634 Air New Zealand 15 2026-05-29
ANZ619 Air New Zealand 14 2026-05-07
ANZ637 Air New Zealand 13 2026-05-29
ANZ574 Air New Zealand 13 2026-05-27
ANZ563 Air New Zealand 13 2026-05-27
ANZ630 Air New Zealand 10 2026-05-08
ANZ625 Air New Zealand 8 2026-05-29
ANZ456 Air New Zealand 8 2026-05-28
ANZ449 Air New Zealand 8 2026-05-28
ANZ675 Air New Zealand 7 2026-05-20
ANZ660 Air New Zealand 7 2026-05-20
ANZ628 Air New Zealand 7 2026-05-29
ANZ412 Air New Zealand 7 2026-05-25
ANZ405 Air New Zealand 7 2026-05-25
ANZ550 Air New Zealand 6 2026-05-28
ANZ611 Air New Zealand 5 2026-05-28
ANZ539 Air New Zealand 5 2026-05-28
ANZ614 Air New Zealand 4 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ANZ580 CHC → AKL May 29, 22:20 UTCMay 29, 22:45 UTC25m
2026-05-29 ANZ523 AKL → CHC May 29, 20:15 UTCMay 29, 21:20 UTC1h 5m
2026-05-29 ANZ628 ZQN → AKL May 29, 08:55 UTCMay 29, 10:05 UTC1h 10m
2026-05-29 ANZ625 AKL → ZQN May 29, 06:00 UTCMay 29, 07:30 UTC1h 30m
2026-05-29 ANZ634 ZQN → AKL May 29, 03:30 UTCMay 29, 04:55 UTC1h 25m
2026-05-29 ANZ637 AKL → ZQN May 29, 00:55 UTCMay 29, 02:10 UTC1h 15m
2026-05-28 ANZ614 ZQN → AKL May 28, 21:40 UTCMay 28, 22:55 UTC1h 15m
2026-05-28 ANZ611 AKL → ZQN May 28, 18:55 UTCMay 28, 20:30 UTC1h 35m
2026-05-28 ANZ456 WLG → AKL May 28, 08:45 UTCMay 28, 09:30 UTC45m
2026-05-28 ANZ449 AKL → WLG May 28, 06:35 UTCMay 28, 07:20 UTC45m
2026-05-28 ANZ550 CHC → AKL May 28, 03:00 UTCMay 28, 04:05 UTC1h 5m
2026-05-28 ANZ539 AKL → CHC May 28, 00:30 UTCMay 28, 01:45 UTC1h 15m
2026-05-27 ANZ548 CHC → AKL May 27, 22:20 UTCMay 27, 23:20 UTC1h 0m
2026-05-27 ANZ519 AKL → CHC May 27, 19:00 UTCMay 27, 20:10 UTC1h 10m
2026-05-27 ANZ574 CHC → AKL May 27, 08:20 UTCMay 27, 09:20 UTC1h 0m
2026-05-27 ANZ563 AKL → CHC May 27, 06:20 UTCMay 27, 07:30 UTC1h 11m
2026-05-27 ANZ634 ZQN → AKL May 27, 03:29 UTCMay 27, 04:59 UTC1h 30m
2026-05-26 ANZ548 CHC → AKL May 26, 21:40 UTCMay 26, 22:39 UTC1h 0m
2026-05-26 ANZ519 AKL → CHC May 26, 19:34 UTCMay 26, 20:45 UTC1h 10m
2026-05-26 ANZ634 ZQN → AKL May 26, 03:19 UTCMay 26, 04:35 UTC1h 15m
2026-05-26 ANZ637 AKL → ZQN May 26, 00:35 UTCMay 26, 01:55 UTC1h 20m
2026-05-25 ANZ412 WLG → AKL May 25, 21:15 UTCMay 25, 21:54 UTC40m
2026-05-25 ANZ405 AKL → WLG May 25, 19:10 UTCMay 25, 19:59 UTC50m
2026-05-25 ANZ574 CHC → AKL May 25, 08:20 UTCMay 25, 09:20 UTC1h 0m
2026-05-25 ANZ563 AKL → CHC May 25, 06:05 UTCMay 25, 07:20 UTC1h 15m
2026-05-25 ANZ634 ZQN → AKL May 25, 03:50 UTCMay 25, 05:05 UTC1h 15m
2026-05-25 ANZ637 AKL → ZQN May 25, 01:55 UTCMay 25, 02:35 UTC40m
2026-05-24 ANZ634 ZQN → AKL May 24, 04:50 UTCMay 24, 06:10 UTC1h 20m
2026-05-24 ANZ637 AKL → ZQN May 24, 02:00 UTCMay 24, 03:20 UTC1h 20m
2026-05-23 ANZ548 CHC → AKL May 23, 21:25 UTCMay 23, 22:25 UTC1h 0m
2026-05-23 ANZ519 AKL → CHC May 23, 19:05 UTCMay 23, 20:15 UTC1h 10m
2026-05-23 ANZ574 CHC → AKL May 23, 08:15 UTCMay 23, 09:15 UTC1h 0m
2026-05-23 ANZ563 AKL → CHC May 23, 06:10 UTCMay 23, 07:20 UTC1h 10m
2026-05-23 ANZ634 ZQN → AKL May 23, 03:25 UTCMay 23, 04:55 UTC1h 30m
2026-05-23 ANZ637 AKL → ZQN May 23, 00:45 UTCMay 23, 01:55 UTC1h 10m
2026-05-22 ANZ456 WLG → AKL May 22, 08:05 UTCMay 22, 08:50 UTC45m
2026-05-22 ANZ449 AKL → WLG May 22, 06:20 UTCMay 22, 07:10 UTC50m
2026-05-22 ANZ634 ZQN → AKL May 22, 03:20 UTCMay 22, 04:50 UTC1h 30m
2026-05-22 ANZ637 AKL → ZQN May 22, 00:40 UTCMay 22, 01:55 UTC1h 15m
2026-05-21 ANZ548 CHC → AKL May 21, 21:20 UTCMay 21, 22:25 UTC1h 5m
2026-05-21 ANZ519 AKL → CHC May 21, 19:05 UTCMay 21, 20:10 UTC1h 5m
2026-05-21 ANZ456 WLG → AKL May 21, 08:15 UTCMay 21, 09:00 UTC45m
2026-05-21 ANZ449 AKL → WLG May 21, 06:20 UTCMay 21, 07:05 UTC45m
2026-05-21 ANZ634 ZQN → AKL May 21, 03:30 UTCMay 21, 04:55 UTC1h 25m
2026-05-21 ANZ637 AKL → ZQN May 21, 00:50 UTCMay 21, 02:05 UTC1h 15m
2026-05-20 ANZ548 CHC → AKL May 20, 21:25 UTCMay 20, 22:30 UTC1h 5m
2026-05-20 ANZ519 AKL → CHC May 20, 18:55 UTCMay 20, 20:00 UTC1h 5m
2026-05-20 ANZ660 DUD → AKL May 20, 03:20 UTCMay 20, 04:45 UTC1h 26m
2026-05-20 ANZ675 AKL → DUD May 20, 00:45 UTCMay 20, 02:15 UTC1h 30m
2026-05-19 ANZ548 CHC → AKL May 19, 21:25 UTCMay 19, 22:30 UTC1h 5m

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-OYA page for operator, model, and routing details .

Mode-S C829AB frequently asked

What is Mode-S code C829AB?
C829AB is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-OYA.
Where is Mode-S C829AB registered?
Mode-S code C829AB 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 C829AB broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C829AB, octal 62024653, decimal 13,117,867.
What flights does C829AB operate?
Mode-S C829AB has broadcast 20 distinct callsigns, including ANZ519, ANZ548, ANZ634, ANZ619, ANZ637.