Apparatus

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sensors Mode-S transponder

C804D2

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-ETT · CESSNA 172 Skyhawk

Hex
C804D2
Octal
62002322
Decimal
13,108,434
Country
NZ
Tail
ZK-ETT
Type
C172
No current signal · last broadcast 6h ago
Flights observed
153
Distinct callsigns
1
Country
NZ
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S C804D2.

Country allocation

The ICAO 24-bit address C804D2 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 1 distinct

Callsign Airline Flights Last seen
ZKETT - 153 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 ZKETT - Jun 3, 05:55 UTCJun 3, 07:00 UTC1h 5m
2026-06-03 ZKETT - Jun 3, 04:15 UTCJun 3, 04:45 UTC30m
2026-06-03 ZKETT - Jun 3, 02:15 UTCJun 3, 02:30 UTC15m
2026-05-29 ZKETT - May 29, 06:10 UTCMay 29, 06:40 UTC30m
2026-05-29 ZKETT - May 29, 03:35 UTCMay 29, 04:10 UTC35m
2026-05-29 ZKETT - May 29, 01:40 UTCMay 29, 02:25 UTC45m
2026-05-28 ZKETT - May 28, 23:10 UTCMay 28, 23:25 UTC15m
2026-05-28 ZKETT - May 28, 06:05 UTCMay 28, 06:50 UTC45m
2026-05-28 ZKETT - May 28, 03:05 UTCMay 28, 03:35 UTC30m
2026-05-28 ZKETT - May 28, 01:20 UTCMay 28, 01:55 UTC35m
2026-05-27 ZKETT - May 27, 22:25 UTCMay 27, 23:15 UTC50m
2026-05-27 ZKETT - May 27, 20:55 UTCMay 27, 21:30 UTC35m
2026-05-27 ZKETT - May 27, 03:34 UTCMay 27, 03:59 UTC25m
2026-05-27 ZKETT - May 27, 02:24 UTCMay 27, 02:59 UTC35m
2026-05-27 ZKETT - May 27, 00:25 UTCMay 27, 01:59 UTC1h 35m
2026-05-26 ZKETT - May 26, 22:50 UTCMay 26, 23:29 UTC40m
2026-05-26 ZKETT - May 26, 21:34 UTCMay 26, 22:09 UTC35m
2026-05-26 ZKETT - May 26, 07:40 UTCMay 26, 08:19 UTC40m
2026-05-26 ZKETT - May 26, 06:20 UTCMay 26, 06:54 UTC35m
2026-05-26 ZKETT - May 26, 03:35 UTCMay 26, 04:30 UTC55m
2026-05-26 ZKETT - May 26, 00:14 UTCMay 26, 00:35 UTC20m
2026-05-25 ZKETT - May 25, 22:30 UTCMay 25, 23:10 UTC40m
2026-05-25 ZKETT - May 25, 21:09 UTCMay 25, 21:35 UTC25m
2026-05-25 ZKETT - May 25, 04:10 UTCMay 25, 05:10 UTC1h 0m
2026-05-25 ZKETT - May 25, 02:25 UTCMay 25, 03:10 UTC45m
2026-05-24 ZKETT - May 24, 23:00 UTCMay 24, 23:30 UTC30m
2026-05-24 ZKETT - May 24, 21:00 UTCMay 24, 21:45 UTC45m
2026-05-24 ZKETT - May 24, 19:25 UTCMay 24, 20:05 UTC40m
2026-05-22 ZKETT - May 22, 02:15 UTCMay 22, 03:10 UTC55m
2026-05-21 ZKETT - May 21, 19:25 UTCMay 21, 19:55 UTC30m
2026-05-21 ZKETT - May 21, 03:15 UTCMay 21, 04:05 UTC50m
2026-05-21 ZKETT - May 21, 01:45 UTCMay 21, 01:55 UTC10m
2026-05-21 ZKETT - May 21, 00:20 UTCMay 21, 01:05 UTC45m
2026-05-20 ZKETT - May 20, 23:05 UTCMay 20, 23:40 UTC35m
2026-05-20 ZKETT - May 20, 21:20 UTCMay 20, 22:20 UTC1h 0m
2026-05-20 ZKETT - May 20, 19:25 UTCMay 20, 19:50 UTC25m
2026-05-20 ZKETT - May 20, 06:10 UTCMay 20, 07:15 UTC1h 5m
2026-05-20 ZKETT - May 20, 03:10 UTCMay 20, 04:05 UTC55m
2026-05-20 ZKETT - May 20, 01:45 UTCMay 20, 02:05 UTC20m
2026-05-20 ZKETT - May 20, 00:05 UTCMay 20, 00:45 UTC40m
2026-05-19 ZKETT - May 19, 20:45 UTCMay 19, 21:45 UTC1h 0m
2026-05-19 ZKETT - May 19, 03:30 UTCMay 19, 04:10 UTC40m
2026-05-19 ZKETT - May 19, 02:30 UTCMay 19, 03:00 UTC30m
2026-05-19 ZKETT - May 19, 01:40 UTCMay 19, 01:50 UTC10m
2026-05-18 ZKETT - May 18, 23:20 UTCMay 18, 23:50 UTC30m
2026-05-18 ZKETT - May 18, 00:50 UTCMay 18, 01:00 UTC10m
2026-05-17 ZKETT - May 17, 23:15 UTCMay 18, 00:05 UTC50m
2026-05-17 ZKETT - May 17, 22:10 UTCMay 17, 22:30 UTC20m
2026-05-17 ZKETT - May 17, 20:45 UTCMay 17, 21:35 UTC50m
2026-05-15 ZKETT - May 15, 03:00 UTCMay 15, 04:10 UTC1h 10m

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

Mode-S C804D2 frequently asked

What is Mode-S code C804D2?
C804D2 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-ETT.
Where is Mode-S C804D2 registered?
Mode-S code C804D2 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 C804D2 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C804D2, octal 62002322, decimal 13,108,434.
What flights does C804D2 operate?
Mode-S C804D2 has broadcast 1 distinct callsign, including ZKETT.