Apparatus

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sensors Mode-S transponder

C818C9

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C818C9
Octal
62014311
Decimal
13,113,545
Country
NZ
Tail
ZK-NEA
Type
DH8C
No current signal · last broadcast 45m ago
Flights observed
255
Distinct callsigns
20
Country
NZ
Last broadcast
45m ago

Last known position

Most recent position reported by Mode-S C818C9.

Country allocation

The ICAO 24-bit address C818C9 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
ANZ258L Air New Zealand 6 2026-05-28
ANZ257L Air New Zealand 6 2026-05-28
ANZ885L Air New Zealand 5 2026-05-21
ANZ769L Air New Zealand 5 2026-05-27
ANZ312L Air New Zealand 5 2026-05-28
ANZ895L Air New Zealand 4 2026-05-21
ANZ884L Air New Zealand 4 2026-05-21
ANZ791L Air New Zealand 4 2026-05-25
ANZ763L Air New Zealand 4 2026-05-15
ANZ331L Air New Zealand 4 2026-05-14
ANZ321L Air New Zealand 4 2026-05-22
ANZ272L Air New Zealand 4 2026-05-29
ANZ238L - 4 2026-05-20
ANZ231L Air New Zealand 4 2026-05-20
ANZ886L Air New Zealand 3 2026-05-21
ANZ848L Air New Zealand 3 2026-05-28
ANZ841L Air New Zealand 3 2026-05-27
ANZ831L - 3 2026-05-22
ANZ830L - 3 2026-05-22
ANZ798L Air New Zealand 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ANZ276L AKL → KKE May 29, 23:40 UTCMay 30, 00:05 UTC25m
2026-05-29 ANZ092L TUO → AKL May 29, 22:10 UTCMay 29, 22:45 UTC35m
2026-05-29 ANZ091L AKL → TUO May 29, 20:55 UTCMay 29, 21:25 UTC30m
2026-05-29 ANZ275L KKE → AKL May 29, 19:15 UTCMay 29, 19:45 UTC30m
2026-05-29 ANZ272L AKL → KKE May 29, 07:55 UTCMay 29, 08:15 UTC20m
2026-05-29 ANZ024L NPE → AKL May 29, 06:05 UTCMay 29, 07:00 UTC55m
2026-05-29 ANZ019L AKL → NPE May 29, 04:35 UTCMay 29, 05:30 UTC55m
2026-05-29 ANZ273L KKE → AKL May 29, 01:10 UTCMay 29, 01:30 UTC20m
2026-05-28 ANZ276L AKL → KKE May 28, 23:40 UTCMay 29, 00:05 UTC25m
2026-05-28 ANZ128L TRG → AKL May 28, 22:25 UTCMay 28, 22:50 UTC25m
2026-05-28 ANZ129L AKL → TRG May 28, 21:20 UTCMay 28, 21:45 UTC25m
2026-05-28 ANZ064L NSN → AKL May 28, 18:30 UTCMay 28, 19:20 UTC50m
2026-05-28 ANZ325L WLG → NSN May 28, 08:50 UTCMay 28, 09:00 UTC10m
2026-05-28 ANZ257L TRG → WLG May 28, 06:55 UTCMay 28, 08:05 UTC1h 10m
2026-05-28 ANZ258L WLG → TRG May 28, 05:20 UTCMay 28, 06:15 UTC55m
2026-05-28 ANZ312L NSN → WLG May 28, 04:25 UTCMay 28, 04:30 UTC5m
2026-05-28 ANZ848L CHC → NSN May 28, 01:20 UTCMay 28, 01:40 UTC20m
2026-05-27 ANZ769L NPL → CHC May 27, 23:50 UTCMay 28, 00:20 UTC30m
2026-05-27 ANZ769L NPL → CHC May 27, 22:55 UTCMay 27, 23:10 UTC15m
2026-05-27 ANZ768L CHC → NPL May 27, 20:45 UTCMay 27, 22:00 UTC1h 15m
2026-05-27 ANZ841L NSN → CHC May 27, 19:05 UTCMay 27, 19:30 UTC25m
2026-05-27 ANZ087L AKL → NSN May 27, 08:30 UTCMay 27, 09:30 UTC1h 0m
2026-05-27 ANZ096L TUO → AKL May 27, 06:29 UTCMay 27, 07:05 UTC36m
2026-05-27 ANZ095L AKL → TUO May 27, 05:19 UTCMay 27, 05:49 UTC30m
2026-05-27 ANZ052L NPL → AKL May 27, 03:50 UTCMay 27, 04:24 UTC35m
2026-05-27 ANZ041L AKL → NPL May 27, 02:29 UTCMay 27, 03:09 UTC40m
2026-05-26 ANZ166L GIS → AKL May 26, 23:39 UTCMay 27, 00:25 UTC45m
2026-05-26 ANZ282L WLG → GIS May 26, 21:14 UTCMay 26, 22:05 UTC50m
2026-05-26 ANZ190L ASG → WLG May 26, 19:05 UTCMay 26, 19:50 UTC45m
2026-05-26 ANZ199L - May 26, 06:04 UTCMay 26, 06:59 UTC55m
2026-05-26 ANZ524L NSN → WLG May 26, 04:35 UTCMay 26, 04:45 UTC10m
2026-05-26 ANZ311L WLG → NSN May 26, 02:55 UTCMay 26, 03:09 UTC15m
2026-05-25 ANZ255L TRG → WLG May 25, 23:14 UTCMay 26, 00:24 UTC1h 10m
2026-05-25 ANZ264L WLG → TRG May 25, 20:55 UTCMay 25, 21:49 UTC55m
2026-05-25 ANZ791L NPL → WLG May 25, 19:05 UTCMay 25, 19:54 UTC50m
2026-05-25 ANZ798L WLG → NPL May 25, 07:45 UTCMay 25, 08:25 UTC40m
2026-05-25 ANZ736L BHE → WLG May 25, 07:00 UTCMay 25, 07:10 UTC10m
2026-05-25 ANZ739L WLG → BHE May 25, 05:55 UTCMay 25, 06:00 UTC5m
2026-05-25 ANZ259L TRG → WLG May 25, 01:55 UTCMay 25, 02:10 UTC15m
2026-05-24 ANZ260L WLG → TRG May 24, 23:15 UTCMay 24, 23:46 UTC31m
2026-05-22 ANZ831L - May 22, 22:20 UTCMay 22, 22:40 UTC20m
2026-05-22 ANZ830L - May 22, 20:45 UTCMay 22, 21:05 UTC20m
2026-05-22 ANZ841L NSN → CHC May 22, 19:05 UTCMay 22, 19:25 UTC20m
2026-05-22 ANZ321L WLG → NSN May 22, 06:40 UTCMay 22, 06:45 UTC5m
2026-05-22 ANZ261L TRG → WLG May 22, 03:55 UTCMay 22, 05:05 UTC1h 10m
2026-05-22 ANZ252L WLG → TRG May 22, 02:10 UTCMay 22, 03:15 UTC1h 5m
2026-05-21 ANZ885L NPE → WLG May 21, 22:55 UTCMay 21, 23:40 UTC45m
2026-05-21 ANZ884L WLG → NPE May 21, 21:25 UTCMay 21, 22:05 UTC40m
2026-05-21 ANZ251L TRG → WLG May 21, 18:40 UTCMay 21, 19:45 UTC1h 5m
2026-05-21 ANZ262L WLG → TRG May 21, 07:10 UTCMay 21, 08:15 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-NEA page for operator, model, and routing details .

Mode-S C818C9 frequently asked

What is Mode-S code C818C9?
C818C9 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEA.
Where is Mode-S C818C9 registered?
Mode-S code C818C9 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 C818C9 broadcasting right now?
No active broadcast right now. Last signal was 45m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C818C9, octal 62014311, decimal 13,113,545.
What flights does C818C9 operate?
Mode-S C818C9 has broadcast 20 distinct callsigns, including ANZ258L, ANZ257L, ANZ885L, ANZ769L, ANZ312L.