Apparatus

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sensors Mode-S transponder

C819DF

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C819DF
Octal
62014737
Decimal
13,113,823
Country
NZ
Tail
ZK-NEO
Type
DH8C
Broadcasting now · callsign ANZ375L · 18,025 ft
Flights observed
264
Distinct callsigns
20
Country
NZ
Last broadcast
1h ago

Current position

C819DF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C819DF 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
ANZ792L Air New Zealand 6 2026-05-26
ANZ726L Air New Zealand 6 2026-05-27
ANZ725L Air New Zealand 6 2026-05-27
ANZ300L Air New Zealand 6 2026-05-27
ANZ793L Air New Zealand 5 2026-05-26
ANZ193L - 5 2026-05-27
ANZ192L - 5 2026-05-27
ANZ769L Air New Zealand 4 2026-05-12
ANZ375L Air New Zealand 4 2026-05-18
ANZ323L Air New Zealand 4 2026-05-27
ANZ277L Air New Zealand 4 2026-05-21
ANZ270L Air New Zealand 4 2026-05-21
ANZ258L Air New Zealand 4 2026-05-01
ANZ257L Air New Zealand 4 2026-05-01
ANZ161L Air New Zealand 4 2026-05-21
ANZ895L Air New Zealand 3 2026-05-10
ANZ886L Air New Zealand 3 2026-05-10
ANZ854L Air New Zealand 3 2026-05-13
ANZ848L Air New Zealand 3 2026-05-13
ANZ841L Air New Zealand 3 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 ANZ261L TRG → WLG May 30, 03:45 UTCMay 30, 04:45 UTC1h 0m
2026-05-30 ANZ252L WLG → TRG May 30, 01:55 UTCMay 30, 02:55 UTC1h 0m
2026-05-29 ANZ255L TRG → WLG May 29, 23:15 UTCMay 30, 00:20 UTC1h 5m
2026-05-29 ANZ264L WLG → TRG May 29, 21:05 UTCMay 29, 22:05 UTC1h 0m
2026-05-29 ANZ251L TRG → WLG May 29, 18:40 UTCMay 29, 19:55 UTC1h 15m
2026-05-29 ANZ262L WLG → TRG May 29, 07:20 UTCMay 29, 08:15 UTC55m
2026-05-29 ANZ261L TRG → WLG May 29, 03:35 UTCMay 29, 04:40 UTC1h 5m
2026-05-29 ANZ252L WLG → TRG May 29, 01:55 UTCMay 29, 02:55 UTC1h 0m
2026-05-28 ANZ255L TRG → WLG May 28, 23:40 UTCMay 29, 00:50 UTC1h 10m
2026-05-28 ANZ264L WLG → TRG May 28, 21:05 UTCMay 28, 22:00 UTC55m
2026-05-28 ANZ251L TRG → WLG May 28, 18:35 UTCMay 28, 19:50 UTC1h 15m
2026-05-28 ANZ262L WLG → TRG May 28, 07:15 UTCMay 28, 08:10 UTC55m
2026-05-28 ANZ304L NSN → WLG May 28, 06:30 UTCMay 28, 06:40 UTC10m
2026-05-28 ANZ317L WLG → NSN May 28, 04:55 UTCMay 28, 05:10 UTC15m
2026-05-28 ANZ954L NSN → WLG May 28, 04:05 UTCMay 28, 04:15 UTC10m
2026-05-27 ANZ192L - May 27, 23:55 UTCMay 28, 01:05 UTC1h 10m
2026-05-27 ANZ193L - May 27, 21:50 UTCMay 27, 23:00 UTC1h 10m
2026-05-27 ANZ726L BHE → WLG May 27, 21:00 UTCMay 27, 21:10 UTC10m
2026-05-27 ANZ725L WLG → BHE May 27, 19:50 UTCMay 27, 19:55 UTC5m
2026-05-27 ANZ300L NSN → WLG May 27, 18:40 UTCMay 27, 18:50 UTC10m
2026-05-27 ANZ325L WLG → NSN May 27, 08:00 UTCMay 27, 08:05 UTC5m
2026-05-27 ANZ235L ROT → WLG May 27, 06:04 UTCMay 27, 07:05 UTC1h 1m
2026-05-27 ANZ230L WLG → ROT May 27, 04:24 UTCMay 27, 05:14 UTC50m
2026-05-27 ANZ323L WLG → NSN May 27, 00:10 UTCMay 27, 00:19 UTC10m
2026-05-26 ANZ793L NPL → WLG May 26, 22:29 UTCMay 26, 23:14 UTC45m
2026-05-26 ANZ792L WLG → NPL May 26, 21:00 UTCMay 26, 21:40 UTC40m
2026-05-26 ANZ791L NPL → WLG May 26, 18:59 UTCMay 26, 19:45 UTC45m
2026-05-26 ANZ798L WLG → NPL May 26, 07:40 UTCMay 26, 08:24 UTC45m
2026-05-26 ANZ736L BHE → WLG May 26, 06:59 UTCMay 26, 07:05 UTC5m
2026-05-26 ANZ739L WLG → BHE May 26, 05:45 UTCMay 26, 05:54 UTC10m
2026-05-26 ANZ289L GIS → WLG May 26, 03:25 UTCMay 26, 04:24 UTC1h 0m
2026-05-26 ANZ167L AKL → GIS May 26, 01:44 UTCMay 26, 02:29 UTC45m
2026-05-25 ANZ088L NSN → AKL May 25, 22:49 UTCMay 25, 23:40 UTC50m
2026-05-25 ANZ061L AKL → NSN May 25, 20:15 UTCMay 25, 21:09 UTC55m
2026-05-25 ANZ229L - May 25, 18:05 UTCMay 25, 18:25 UTC20m
2026-05-25 ANZ226L - May 25, 08:30 UTCMay 25, 08:50 UTC20m
2026-05-25 ANZ172L GIS → AKL May 25, 06:25 UTCMay 25, 07:20 UTC55m
2026-05-25 ANZ171L AKL → GIS May 25, 04:50 UTCMay 25, 05:40 UTC50m
2026-05-24 ANZ282L WLG → GIS May 24, 21:20 UTCMay 24, 21:45 UTC25m
2026-05-24 ANZ251L TRG → WLG May 24, 18:45 UTCMay 24, 20:00 UTC1h 15m
2026-05-24 ANZ143L AKL → TRG May 24, 06:45 UTCMay 24, 07:15 UTC30m
2026-05-24 ANZ223L - May 24, 05:30 UTCMay 24, 06:00 UTC30m
2026-05-24 ANZ222L - May 24, 04:15 UTCMay 24, 04:35 UTC20m
2026-05-24 ANZ174L GIS → AKL May 24, 02:30 UTCMay 24, 03:15 UTC45m
2026-05-24 ANZ169L AKL → GIS May 24, 00:20 UTCMay 24, 01:00 UTC40m
2026-05-23 ANZ164L GIS → AKL May 23, 22:20 UTCMay 23, 23:10 UTC50m
2026-05-23 ANZ163L AKL → GIS May 23, 20:40 UTCMay 23, 21:25 UTC45m
2026-05-22 ANZ138L TRG → AKL May 22, 04:45 UTCMay 22, 05:20 UTC35m
2026-05-22 ANZ137L AKL → TRG May 22, 03:30 UTCMay 22, 03:55 UTC25m
2026-05-22 ANZ072L NSN → AKL May 22, 01:40 UTCMay 22, 02:40 UTC1h 0m

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

Mode-S C819DF frequently asked

What is Mode-S code C819DF?
C819DF is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEO.
Where is Mode-S C819DF registered?
Mode-S code C819DF 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 C819DF broadcasting right now?
Yes. Mode-S C819DF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C819DF, octal 62014737, decimal 13,113,823.
What flights does C819DF operate?
Mode-S C819DF has broadcast 20 distinct callsigns, including ANZ792L, ANZ726L, ANZ725L, ANZ300L, ANZ793L.