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
507
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 - 47 2026-07-13
ANZ548 - 44 2026-07-13
ANZ634 - 39 2026-07-14
ANZ637 - 37 2026-07-14
ANZ574 - 28 2026-07-07
ANZ563 - 28 2026-07-07
ANZ619 - 20 2026-07-06
ANZ630 - 18 2026-07-07
ANZ625 - 18 2026-07-13
ANZ675 - 17 2026-07-13
ANZ660 - 17 2026-07-13
ANZ628 - 17 2026-07-13
ANZ456 - 13 2026-06-25
ANZ449 - 13 2026-06-25
ANZ412 - 12 2026-07-08
ANZ405 - 12 2026-07-08
ANZ611 - 10 2026-07-09
ANZ614 - 9 2026-07-09
ANZ550 - 9 2026-06-30
ANZ580 - 6 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ANZ634 - Jul 14, 03:40 UTCJul 14, 05:10 UTC1h 30m
2026-07-14 ANZ637 - Jul 14, 00:35 UTCJul 14, 02:15 UTC1h 40m
2026-07-13 ANZ548 - Jul 13, 21:15 UTCJul 13, 22:15 UTC1h 0m
2026-07-13 ANZ519 - Jul 13, 19:00 UTCJul 13, 20:05 UTC1h 5m
2026-07-13 ANZ628 - Jul 13, 08:55 UTCJul 13, 10:20 UTC1h 25m
2026-07-13 ANZ625 - Jul 13, 06:20 UTCJul 13, 07:45 UTC1h 25m
2026-07-13 ANZ660 - Jul 13, 03:40 UTCJul 13, 05:15 UTC1h 35m
2026-07-13 ANZ675 - Jul 13, 01:01 UTCJul 13, 02:35 UTC1h 35m
2026-07-12 ANZ676 - Jul 12, 22:05 UTCJul 12, 23:40 UTC1h 35m
2026-07-12 ANZ673 - Jul 12, 19:30 UTCJul 12, 21:05 UTC1h 35m
2026-07-12 ANZ628 - Jul 12, 09:15 UTCJul 12, 10:40 UTC1h 25m
2026-07-12 ANZ625 - Jul 12, 06:30 UTCJul 12, 07:55 UTC1h 25m
2026-07-12 ANZ660 - Jul 12, 03:50 UTCJul 12, 05:25 UTC1h 35m
2026-07-12 ANZ675 - Jul 12, 00:55 UTCJul 12, 02:30 UTC1h 35m
2026-07-11 ANZ420 WLG → AKL Jul 11, 22:55 UTCJul 11, 23:40 UTC45m
2026-07-11 ANZ413 AKL → WLG Jul 11, 20:55 UTCJul 11, 21:45 UTC50m
2026-07-11 ANZ660 - Jul 11, 03:25 UTCJul 11, 04:55 UTC1h 30m
2026-07-11 ANZ675 - Jul 11, 00:50 UTCJul 11, 02:25 UTC1h 35m
2026-07-10 ANZ676 - Jul 10, 21:50 UTCJul 10, 23:15 UTC1h 25m
2026-07-10 ANZ673 - Jul 10, 19:10 UTCJul 10, 20:40 UTC1h 30m
2026-07-10 ANZ628 - Jul 10, 09:05 UTCJul 10, 10:25 UTC1h 20m
2026-07-10 ANZ625 - Jul 10, 06:10 UTCJul 10, 07:40 UTC1h 30m
2026-07-10 ANZ634 - Jul 10, 03:30 UTCJul 10, 05:00 UTC1h 30m
2026-07-10 ANZ637 - Jul 10, 00:50 UTCJul 10, 02:00 UTC1h 10m
2026-07-09 ANZ614 - Jul 9, 22:00 UTCJul 9, 23:20 UTC1h 20m
2026-07-09 ANZ611 - Jul 9, 18:50 UTCJul 9, 20:20 UTC1h 30m
2026-07-09 ANZ634 - Jul 9, 04:10 UTCJul 9, 05:45 UTC1h 35m
2026-07-09 ANZ637 - Jul 9, 01:15 UTCJul 9, 02:50 UTC1h 35m
2026-07-08 ANZ412 WLG → AKL Jul 8, 21:20 UTCJul 8, 22:00 UTC40m
2026-07-08 ANZ405 - Jul 8, 19:15 UTCJul 8, 20:05 UTC50m
2026-07-08 ANZ466 WLG → AKL Jul 8, 07:10 UTCJul 8, 07:55 UTC45m
2026-07-08 ANZ445 - Jul 8, 05:15 UTCJul 8, 06:05 UTC50m
2026-07-08 ANZ546 - Jul 8, 01:40 UTCJul 8, 02:45 UTC1h 5m
2026-07-07 ANZ535 - Jul 7, 23:20 UTCJul 8, 00:30 UTC1h 10m
2026-07-07 ANZ412 WLG → AKL Jul 7, 21:20 UTCJul 7, 22:05 UTC45m
2026-07-07 ANZ405 - Jul 7, 19:25 UTCJul 7, 20:15 UTC50m
2026-07-07 ANZ574 - Jul 7, 08:20 UTCJul 7, 09:25 UTC1h 5m
2026-07-07 ANZ563 - Jul 7, 06:20 UTCJul 7, 07:25 UTC1h 5m
2026-07-07 ANZ630 - Jul 7, 02:40 UTCJul 7, 04:05 UTC1h 25m
2026-07-06 ANZ619 - Jul 6, 23:55 UTCJul 7, 01:20 UTC1h 25m
2026-07-06 ANZ548 CHC → AKL Jul 6, 21:35 UTCJul 6, 22:40 UTC1h 5m
2026-07-06 ANZ519 - Jul 6, 19:10 UTCJul 6, 20:15 UTC1h 5m
2026-07-06 ANZ628 - Jul 6, 08:55 UTCJul 6, 10:20 UTC1h 25m
2026-07-06 ANZ625 - Jul 6, 06:15 UTCJul 6, 07:40 UTC1h 25m
2026-07-06 ANZ630 - Jul 6, 03:15 UTCJul 6, 04:00 UTC45m
2026-07-06 ANZ630 - Jul 6, 02:30 UTCJul 6, 02:40 UTC10m
2026-07-05 ANZ619 - Jul 5, 23:55 UTCJul 6, 01:20 UTC1h 25m
2026-07-05 ANZ548 CHC → AKL Jul 5, 21:20 UTCJul 5, 22:30 UTC1h 10m
2026-07-05 ANZ519 - Jul 5, 19:05 UTCJul 5, 20:10 UTC1h 5m
2026-07-05 ANZ628 - Jul 5, 09:30 UTCJul 5, 10:55 UTC1h 25m

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, ANZ637, ANZ574.