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
Broadcasting now · callsign ANZ532 · 3,250 ft
Flights observed
12
Distinct callsigns
8
Country
NZ
Last broadcast
13h ago

Current position

C829AB is currently broadcasting. Map zoomed to live position.

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 8 distinct

Callsign Airline Flights Last seen
ANZ619 - 3 2026-04-13
ANZ573 - 2 2026-04-14
ANZ566 - 2 2026-04-14
ANZ628 - 1 2026-04-13
ANZ625 - 1 2026-04-13
ANZ6204 - 1 2026-04-13
ANZ535 - 1 2026-04-13
ANZ519 - 1 2026-04-12

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 ANZ573 - Apr 14, 09:10 UTCApr 14, 09:55 UTC45m
2026-04-14 ANZ573 - Apr 14, 08:50 UTCApr 14, 09:05 UTC15m
2026-04-14 ANZ566 - Apr 14, 07:10 UTCApr 14, 07:25 UTC15m
2026-04-14 ANZ566 - Apr 14, 06:20 UTCApr 14, 07:10 UTC50m
2026-04-13 ANZ535 - Apr 13, 23:20 UTCApr 13, 23:40 UTC20m
2026-04-13 ANZ628 - Apr 13, 09:05 UTCApr 13, 10:35 UTC1h 30m
2026-04-13 ANZ625 - Apr 13, 06:25 UTCApr 13, 07:20 UTC55m
2026-04-13 ANZ6204 - Apr 13, 04:20 UTCApr 13, 05:25 UTC1h 5m
2026-04-13 ANZ619 - Apr 13, 02:10 UTCApr 13, 02:45 UTC35m
2026-04-13 ANZ619 - Apr 13, 00:20 UTCApr 13, 01:25 UTC1h 5m
2026-04-13 ANZ619 - Apr 13, 00:05 UTCApr 13, 01:25 UTC1h 20m
2026-04-12 ANZ519 - Apr 12, 19:00 UTCApr 12, 20:05 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?
Yes. Mode-S C829AB is currently airborne.
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 8 distinct callsigns, including ANZ619, ANZ573, ANZ566, ANZ628, ANZ625.