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 Jul 26, 21:20 UTC
Flights observed
570
Distinct callsigns
20
Country
NZ
Last broadcast
Jul 26, 21:20 UTC

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 - 10 2026-06-29
ANZ375L Air New Zealand 9 2026-07-23
ANZ764L - 8 2026-06-29
ANZ796L - 7 2026-07-13
ANZ795L - 7 2026-07-13
ANZ321L - 7 2026-07-19
ANZ315L - 7 2026-07-20
ANZ264L - 7 2026-07-13
ANZ258L - 7 2026-07-15
ANZ257L - 7 2026-07-15
ANZ255L - 7 2026-07-14
ANZ126L - 7 2026-07-17
ANZ831L - 6 2026-07-09
ANZ830L - 6 2026-07-09
ANZ769L - 6 2026-07-07
ANZ524L - 6 2026-07-18
ANZ350L - 6 2026-07-09
ANZ334L Air New Zealand 6 2026-06-30
ANZ318L - 6 2026-07-11
ANZ312L Air New Zealand 6 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANZ061L AKL → NSN Jul 26, 20:05 UTCJul 26, 21:20 UTC1h 15m
2026-07-26 ANZ229L - Jul 26, 17:50 UTCJul 26, 18:20 UTC30m
2026-07-26 ANZ226L - Jul 26, 08:30 UTCJul 26, 08:55 UTC25m
2026-07-26 ANZ172L GIS → AKL Jul 26, 06:25 UTCJul 26, 07:15 UTC51m
2026-07-26 ANZ171L AKL → GIS Jul 26, 04:50 UTCJul 26, 05:35 UTC45m
2026-07-26 ANZ269L KKE → AKL Jul 26, 03:20 UTCJul 26, 03:50 UTC30m
2026-07-26 ANZ268L AKL → KKE Jul 26, 02:05 UTCJul 26, 02:30 UTC25m
2026-07-25 ANZ204L BHE → AKL Jul 25, 21:50 UTCJul 25, 23:10 UTC1h 20m
2026-07-25 ANZ209L AKL → BHE Jul 25, 03:30 UTCJul 25, 04:45 UTC1h 15m
2026-07-25 ANZ225L - Jul 25, 00:30 UTCJul 25, 00:55 UTC25m
2026-07-24 ANZ224L - Jul 24, 23:15 UTCJul 24, 23:40 UTC25m
2026-07-24 ANZ160L GIS → AKL Jul 24, 18:20 UTCJul 24, 19:15 UTC55m
2026-07-24 ANZ286L WLG → GIS Jul 24, 05:50 UTCJul 24, 06:45 UTC55m
2026-07-24 ANZ932L NSN → AKL Jul 24, 00:20 UTCJul 24, 01:05 UTC45m
2026-07-23 ANZ375L WLG → CHC Jul 23, 06:05 UTCJul 23, 07:00 UTC55m
2026-07-23 ANZ312L NSN → WLG Jul 23, 04:30 UTCJul 23, 04:55 UTC25m
2026-07-23 ANZ089L AKL → NSN Jul 23, 02:35 UTCJul 23, 03:45 UTC1h 10m
2026-07-21 ANZ160L GIS → AKL Jul 21, 18:35 UTCJul 21, 19:20 UTC45m
2026-07-21 ANZ286L WLG → GIS Jul 21, 05:40 UTCJul 21, 06:30 UTC50m
2026-07-21 ANZ312L NSN → WLG Jul 21, 03:05 UTCJul 21, 03:30 UTC25m
2026-07-21 ANZ089L AKL → NSN Jul 21, 00:35 UTCJul 21, 01:50 UTC1h 15m
2026-07-20 ANZ088L - Jul 20, 22:10 UTCJul 20, 23:25 UTC1h 15m
2026-07-20 ANZ315L - Jul 20, 20:35 UTCJul 20, 21:00 UTC25m
2026-07-20 ANZ507L GIS → WLG Jul 20, 18:40 UTCJul 20, 19:40 UTC1h 0m
2026-07-20 ANZ161L AKL → GIS Jul 20, 07:40 UTCJul 20, 08:20 UTC40m
2026-07-20 ANZ066L - Jul 20, 04:25 UTCJul 20, 05:35 UTC1h 10m
2026-07-19 ANZ321L - Jul 19, 06:55 UTCJul 19, 07:20 UTC25m
2026-07-19 ANZ289L GIS → WLG Jul 19, 03:30 UTCJul 19, 04:25 UTC55m
2026-07-19 ANZ167L AKL → GIS Jul 19, 01:55 UTCJul 19, 02:35 UTC40m
2026-07-18 ANZ088L - Jul 18, 22:10 UTCJul 18, 23:20 UTC1h 10m
2026-07-18 ANZ319L WLG → NSN Jul 18, 05:40 UTCJul 18, 06:05 UTC25m
2026-07-18 ANZ524L - Jul 18, 04:30 UTCJul 18, 04:55 UTC25m
2026-07-18 ANZ073L - Jul 18, 02:29 UTCJul 18, 03:40 UTC1h 11m
2026-07-17 ANZ164L - Jul 17, 22:25 UTCJul 17, 23:05 UTC40m
2026-07-17 ANZ163L - Jul 17, 20:40 UTCJul 17, 21:30 UTC50m
2026-07-17 ANZ126L - Jul 17, 19:15 UTCJul 17, 19:40 UTC25m
2026-07-17 ANZ143L - Jul 17, 06:45 UTCJul 17, 07:14 UTC30m
2026-07-17 ANZ223L - Jul 17, 05:25 UTCJul 17, 05:50 UTC25m
2026-07-17 ANZ222L - Jul 17, 04:14 UTCJul 17, 04:39 UTC25m
2026-07-17 ANZ225L - Jul 17, 00:35 UTCJul 17, 01:00 UTC25m
2026-07-16 ANZ224L - Jul 16, 23:20 UTCJul 16, 23:40 UTC20m
2026-07-16 ANZ060L - Jul 16, 20:45 UTCJul 16, 22:00 UTC1h 15m
2026-07-16 ANZ063L - Jul 16, 18:44 UTCJul 16, 19:55 UTC1h 10m
2026-07-16 ANZ080L - Jul 16, 07:55 UTCJul 16, 08:35 UTC40m
2026-07-16 ANZ583L - Jul 16, 05:25 UTCJul 16, 06:20 UTC55m
2026-07-16 ANZ212L - Jul 16, 02:50 UTCJul 16, 04:00 UTC1h 10m
2026-07-16 ANZ509L - Jul 16, 00:35 UTCJul 16, 02:00 UTC1h 25m
2026-07-15 ANZ060L - Jul 15, 21:50 UTCJul 15, 22:45 UTC55m
2026-07-15 ANZ325L - Jul 15, 08:15 UTCJul 15, 08:30 UTC15m
2026-07-15 ANZ257L - Jul 15, 06:10 UTCJul 15, 07:25 UTC1h 15m

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 Jul 26, 21:20 UTC.
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, ANZ375L, ANZ764L, ANZ796L, ANZ795L.