sensors Mode-S transponder

C819DE

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C819DE
Octal
62014736
Decimal
13,113,822
Country
NZ
Tail
ZK-NEM
Type
DH8C
No current signal · last broadcast 2h ago
Flights observed
281
Distinct callsigns
20
Country
NZ
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C819DE.

Country allocation

The ICAO 24-bit address C819DE 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
ANZ763L Air New Zealand 9 2026-05-24
ANZ764L Air New Zealand 6 2026-05-24
ANZ375L Air New Zealand 6 2026-05-07
ANZ831L - 4 2026-05-29
ANZ830L - 4 2026-05-29
ANZ193L - 4 2026-05-24
ANZ172L Air New Zealand 4 2026-05-17
ANZ171L Air New Zealand 4 2026-05-17
ANZ126L Air New Zealand 4 2026-05-28
ANZ092L Air New Zealand 4 2026-05-28
ANZ091L Air New Zealand 4 2026-05-28
ANZ895L Air New Zealand 3 2026-05-25
ANZ886L Air New Zealand 3 2026-05-25
ANZ798L Air New Zealand 3 2026-05-12
ANZ736L Air New Zealand 3 2026-05-12
ANZ524L Air New Zealand 3 2026-05-19
ANZ507L Air New Zealand 3 2026-05-21
ANZ357L Air New Zealand 3 2026-05-22
ANZ350L Air New Zealand 3 2026-05-04
ANZ334L Air New Zealand 3 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ANZ831L - May 29, 22:00 UTCMay 29, 22:20 UTC20m
2026-05-29 ANZ830L - May 29, 20:40 UTCMay 29, 21:00 UTC20m
2026-05-29 ANZ841L NSN → CHC May 29, 19:00 UTCMay 29, 19:25 UTC25m
2026-05-29 ANZ087L AKL → NSN May 29, 08:10 UTCMay 29, 09:05 UTC55m
2026-05-29 ANZ096L TUO → AKL May 29, 06:20 UTCMay 29, 07:00 UTC40m
2026-05-29 ANZ095L AKL → TUO May 29, 05:10 UTCMay 29, 05:40 UTC30m
2026-05-29 ANZ076L NSN → AKL May 29, 03:15 UTCMay 29, 04:05 UTC50m
2026-05-29 ANZ089L AKL → NSN May 29, 00:30 UTCMay 29, 01:30 UTC1h 0m
2026-05-28 ANZ092L TUO → AKL May 28, 22:10 UTCMay 28, 22:45 UTC35m
2026-05-28 ANZ091L AKL → TUO May 28, 20:55 UTCMay 28, 21:30 UTC35m
2026-05-28 ANZ126L TRG → AKL May 28, 19:15 UTCMay 28, 19:45 UTC30m
2026-05-28 ANZ143L AKL → TRG May 28, 06:45 UTCMay 28, 07:10 UTC25m
2026-05-28 ANZ138L TRG → AKL May 28, 04:50 UTCMay 28, 05:15 UTC25m
2026-05-28 ANZ137L AKL → TRG May 28, 03:20 UTCMay 28, 03:45 UTC25m
2026-05-27 ANZ221L - May 27, 21:35 UTCMay 27, 21:55 UTC20m
2026-05-27 ANZ220L - May 27, 20:25 UTCMay 27, 20:45 UTC20m
2026-05-27 ANZ160L GIS → AKL May 27, 18:25 UTCMay 27, 19:15 UTC50m
2026-05-27 ANZ161L AKL → GIS May 27, 07:20 UTCMay 27, 08:05 UTC45m
2026-05-27 ANZ138L TRG → AKL May 27, 04:39 UTCMay 27, 05:09 UTC30m
2026-05-27 ANZ137L AKL → TRG May 27, 03:24 UTCMay 27, 03:50 UTC25m
2026-05-27 ANZ225L - May 27, 00:44 UTCMay 27, 01:05 UTC20m
2026-05-26 ANZ224L - May 26, 23:14 UTCMay 26, 23:35 UTC20m
2026-05-26 ANZ060L NSN → AKL May 26, 21:00 UTCMay 26, 21:49 UTC50m
2026-05-26 ANZ063L AKL → NSN May 26, 18:45 UTCMay 26, 19:30 UTC45m
2026-05-26 ANZ277L KKE → AKL May 26, 05:59 UTCMay 26, 06:20 UTC20m
2026-05-26 ANZ270L AKL → KKE May 26, 04:30 UTCMay 26, 04:54 UTC25m
2026-05-25 ANZ128L TRG → AKL May 25, 21:49 UTCMay 25, 22:15 UTC25m
2026-05-25 ANZ129L AKL → TRG May 25, 20:50 UTCMay 25, 21:15 UTC25m
2026-05-25 ANZ126L TRG → AKL May 25, 19:15 UTCMay 25, 19:40 UTC25m
2026-05-25 ANZ262L WLG → TRG May 25, 07:05 UTCMay 25, 08:00 UTC55m
2026-05-25 ANZ895L NPE → WLG May 25, 04:50 UTCMay 25, 05:40 UTC50m
2026-05-25 ANZ886L WLG → NPE May 25, 03:25 UTCMay 25, 04:05 UTC40m
2026-05-24 ANZ193L - May 24, 23:00 UTCMay 24, 23:35 UTC35m
2026-05-24 ANZ231L ROT → WLG May 24, 20:35 UTCMay 24, 21:40 UTC1h 5m
2026-05-24 ANZ238L - May 24, 18:55 UTCMay 24, 19:40 UTC45m
2026-05-24 ANZ382L CHC → WLG May 24, 07:25 UTCMay 24, 08:10 UTC45m
2026-05-24 ANZ763L NPL → CHC May 24, 05:55 UTCMay 24, 06:30 UTC35m
2026-05-24 ANZ763L NPL → CHC May 24, 05:05 UTCMay 24, 05:20 UTC15m
2026-05-24 ANZ764L CHC → NPL May 24, 03:05 UTCMay 24, 04:15 UTC1h 10m
2026-05-24 ANZ859L NSN → CHC May 24, 01:30 UTCMay 24, 02:00 UTC30m
2026-05-23 ANZ844L CHC → NSN May 23, 23:35 UTCMay 24, 00:00 UTC25m
2026-05-23 ANZ708L IVC → CHC May 23, 21:35 UTCMay 23, 22:35 UTC1h 0m
2026-05-23 ANZ707L CHC → IVC May 23, 19:40 UTCMay 23, 21:00 UTC1h 20m
2026-05-22 ANZ763L NPL → CHC May 22, 05:05 UTCMay 22, 06:25 UTC1h 20m
2026-05-22 ANZ764L CHC → NPL May 22, 03:10 UTCMay 22, 04:25 UTC1h 15m
2026-05-22 ANZ357L WLG → CHC May 22, 01:20 UTCMay 22, 02:10 UTC50m
2026-05-21 ANZ255L TRG → WLG May 21, 23:10 UTCMay 22, 00:10 UTC1h 0m
2026-05-21 ANZ264L WLG → TRG May 21, 21:10 UTCMay 21, 22:15 UTC1h 5m
2026-05-21 ANZ507L GIS → WLG May 21, 18:35 UTCMay 21, 19:30 UTC55m
2026-05-21 ANZ286L WLG → GIS May 21, 05:40 UTCMay 21, 06:30 UTC50m

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

Mode-S C819DE frequently asked

What is Mode-S code C819DE?
C819DE is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEM.
Where is Mode-S C819DE registered?
Mode-S code C819DE 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 C819DE broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C819DE, octal 62014736, decimal 13,113,822.
What flights does C819DE operate?
Mode-S C819DE has broadcast 20 distinct callsigns, including ANZ763L, ANZ764L, ANZ375L, ANZ831L, ANZ830L.