sensors Mode-S transponder

C818DA

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C818DA
Octal
62014332
Decimal
13,113,562
Country
NZ
Tail
ZK-NEB
Type
DH8C
No current signal · last broadcast 39m ago
Flights observed
252
Distinct callsigns
20
Country
NZ
Last broadcast
39m ago

Last known position

Most recent position reported by Mode-S C818DA.

Country allocation

The ICAO 24-bit address C818DA 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
ANZ205L Air New Zealand 5 2026-05-27
ANZ172L Air New Zealand 5 2026-05-18
ANZ171L Air New Zealand 5 2026-05-18
ANZ129L Air New Zealand 5 2026-05-30
ANZ128L Air New Zealand 5 2026-05-30
ANZ885L Air New Zealand 4 2026-05-25
ANZ796L Air New Zealand 4 2026-05-25
ANZ795L Air New Zealand 4 2026-05-25
ANZ598L - 4 2026-05-29
ANZ507L Air New Zealand 4 2026-05-07
ANZ229L - 4 2026-05-19
ANZ226L - 4 2026-05-19
ANZ223L - 4 2026-05-22
ANZ147L Air New Zealand 4 2026-05-18
ANZ143L Air New Zealand 4 2026-05-22
ANZ136L Air New Zealand 4 2026-05-18
ANZ115L - 4 2026-05-28
ANZ895L Air New Zealand 3 2026-05-16
ANZ884L Air New Zealand 3 2026-05-25
ANZ726L Air New Zealand 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ANZ128L TRG → AKL May 30, 21:50 UTCMay 30, 22:25 UTC35m
2026-05-30 ANZ129L AKL → TRG May 30, 20:45 UTCMay 30, 21:10 UTC25m
2026-05-29 ANZ598L - May 29, 00:50 UTCMay 29, 01:45 UTC55m
2026-05-28 ANZ115L - May 28, 23:05 UTCMay 29, 00:05 UTC1h 0m
2026-05-28 ANZ168L GIS → AKL May 28, 20:35 UTCMay 28, 21:25 UTC50m
2026-05-28 ANZ173L AKL → GIS May 28, 19:00 UTCMay 28, 19:45 UTC45m
2026-05-28 ANZ080L NSN → AKL May 28, 08:10 UTCMay 28, 08:55 UTC45m
2026-05-27 ANZ205L AKL → BHE May 27, 06:44 UTCMay 27, 07:55 UTC1h 10m
2026-05-27 ANZ066L NSN → AKL May 27, 04:45 UTCMay 27, 05:40 UTC55m
2026-05-27 ANZ311L WLG → NSN May 27, 03:20 UTCMay 27, 03:24 UTC5m
2026-05-26 ANZ350L CHC → WLG May 26, 23:29 UTCMay 27, 00:14 UTC45m
2026-05-26 ANZ831L - May 26, 22:09 UTCMay 26, 22:25 UTC15m
2026-05-26 ANZ830L - May 26, 20:50 UTCMay 26, 21:09 UTC20m
2026-05-26 ANZ331L WLG → CHC May 26, 18:40 UTCMay 26, 19:34 UTC55m
2026-05-26 ANZ235L ROT → WLG May 26, 05:59 UTCMay 26, 06:59 UTC1h 0m
2026-05-26 ANZ230L WLG → ROT May 26, 04:30 UTCMay 26, 05:20 UTC50m
2026-05-25 ANZ885L NPE → WLG May 25, 22:55 UTCMay 25, 23:45 UTC50m
2026-05-25 ANZ884L WLG → NPE May 25, 21:30 UTCMay 25, 22:15 UTC45m
2026-05-25 ANZ190L - May 25, 18:55 UTCMay 25, 19:50 UTC55m
2026-05-25 ANZ199L - May 25, 05:50 UTCMay 25, 07:00 UTC1h 10m
2026-05-25 ANZ795L NPL → WLG May 25, 04:15 UTCMay 25, 05:05 UTC50m
2026-05-25 ANZ796L WLG → NPL May 25, 03:00 UTCMay 25, 03:45 UTC45m
2026-05-24 ANZ885L NPE → WLG May 24, 23:10 UTCMay 24, 23:46 UTC36m
2026-05-24 ANZ726L BHE → WLG May 24, 20:50 UTCMay 24, 21:00 UTC10m
2026-05-24 ANZ725L WLG → BHE May 24, 19:45 UTCMay 24, 19:55 UTC10m
2026-05-24 ANZ300L NSN → WLG May 24, 18:45 UTCMay 24, 19:00 UTC15m
2026-05-24 ANZ325L WLG → NSN May 24, 08:10 UTCMay 24, 08:20 UTC10m
2026-05-24 ANZ257L TRG → WLG May 24, 06:05 UTCMay 24, 07:05 UTC1h 0m
2026-05-24 ANZ258L WLG → TRG May 24, 04:15 UTCMay 24, 05:20 UTC1h 5m
2026-05-24 ANZ314L NSN → WLG May 24, 02:05 UTCMay 24, 02:15 UTC10m
2026-05-23 ANZ067L AKL → NSN May 23, 22:55 UTCMay 23, 23:55 UTC1h 0m
2026-05-22 ANZ126L TRG → AKL May 22, 19:15 UTCMay 22, 19:45 UTC30m
2026-05-22 ANZ143L AKL → TRG May 22, 06:45 UTCMay 22, 07:05 UTC20m
2026-05-22 ANZ223L - May 22, 05:35 UTCMay 22, 05:55 UTC20m
2026-05-22 - - May 22, 04:15 UTCMay 22, 04:35 UTC20m
2026-05-21 ANZ126L TRG → AKL May 21, 19:10 UTCMay 21, 19:45 UTC35m
2026-05-21 ANZ143L AKL → TRG May 21, 06:45 UTCMay 21, 07:10 UTC25m
2026-05-21 ANZ138L TRG → AKL May 21, 04:35 UTCMay 21, 05:10 UTC35m
2026-05-21 ANZ137L AKL → TRG May 21, 03:20 UTCMay 21, 03:45 UTC25m
2026-05-21 ANZ273L KKE → AKL May 21, 01:05 UTCMay 21, 01:30 UTC25m
2026-05-20 ANZ276L AKL → KKE May 20, 23:50 UTCMay 21, 00:10 UTC20m
2026-05-20 ANZ267L KKE → AKL May 20, 22:15 UTCMay 20, 22:40 UTC25m
2026-05-20 ANZ266L AKL → KKE May 20, 20:55 UTCMay 20, 21:15 UTC20m
2026-05-20 ANZ208L BHE → AKL May 20, 18:25 UTCMay 20, 19:35 UTC1h 10m
2026-05-20 ANZ205L AKL → BHE May 20, 06:50 UTCMay 20, 07:50 UTC1h 0m
2026-05-19 ANZ088L NSN → AKL May 19, 22:35 UTCMay 19, 23:30 UTC55m
2026-05-19 ANZ061L AKL → NSN May 19, 20:00 UTCMay 19, 20:45 UTC45m
2026-05-19 ANZ229L - May 19, 18:10 UTCMay 19, 18:30 UTC20m
2026-05-19 ANZ226L - May 19, 08:20 UTCMay 19, 08:40 UTC20m
2026-05-18 ANZ088L NSN → AKL May 18, 22:30 UTCMay 18, 23:15 UTC45m

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

Mode-S C818DA frequently asked

What is Mode-S code C818DA?
C818DA is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEB.
Where is Mode-S C818DA registered?
Mode-S code C818DA 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 C818DA broadcasting right now?
No active broadcast right now. Last signal was 39m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C818DA, octal 62014332, decimal 13,113,562.
What flights does C818DA operate?
Mode-S C818DA has broadcast 20 distinct callsigns, including ANZ205L, ANZ172L, ANZ171L, ANZ129L, ANZ128L.