sensors Mode-S transponder

C81A92

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-NEU · DE HAVILLAND DHC-8-300 Dash 8

Hex
C81A92
Octal
62015222
Decimal
13,114,002
Country
NZ
Tail
ZK-NEU
Type
DH8C
No current signal · last broadcast 2d ago
Flights observed
4
Distinct callsigns
2
Country
NZ
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S C81A92.

Country allocation

The ICAO 24-bit address C81A92 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 2 distinct

Callsign Airline Flights Last seen
ANZ484L Air New Zealand 2 2026-04-13
ANZ481L - 2 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 ANZ481L - Apr 13, 03:55 UTCApr 13, 04:25 UTC30m
2026-04-13 ANZ481L - Apr 13, 02:50 UTCApr 13, 04:15 UTC1h 25m
2026-04-13 ANZ484L NSN → AKL Apr 13, 00:20 UTCApr 13, 02:00 UTC1h 40m
2026-04-13 ANZ484L NSN → AKL Apr 13, 00:10 UTCApr 13, 02:00 UTC1h 50m

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

Mode-S C81A92 frequently asked

What is Mode-S code C81A92?
C81A92 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEU.
Where is Mode-S C81A92 registered?
Mode-S code C81A92 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 C81A92 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81A92, octal 62015222, decimal 13,114,002.
What flights does C81A92 operate?
Mode-S C81A92 has broadcast 2 distinct callsigns, including ANZ484L, ANZ481L.