Apparatus

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sensors Mode-S transponder

C819DC

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C819DC
Octal
62014734
Decimal
13,113,820
Country
NZ
Tail
ZK-NEJ
Type
DH8C
No current signal · last broadcast 2h ago
Flights observed
464
Distinct callsigns
20
Country
NZ
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C819DC.

Country allocation

The ICAO 24-bit address C819DC 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
ANZ171L - 8 2026-07-12
ANZ164L Air New Zealand 8 2026-06-06
ANZ163L Air New Zealand 8 2026-06-06
ANZ796L - 7 2026-07-07
ANZ795L - 7 2026-07-07
ANZ793L - 7 2026-06-19
ANZ792L - 7 2026-06-19
ANZ769L - 7 2026-07-14
ANZ229L - 7 2026-07-12
ANZ226L - 7 2026-07-12
ANZ172L - 7 2026-07-12
ANZ843L - 6 2026-07-14
ANZ831L - 6 2026-06-26
ANZ830L - 6 2026-06-26
ANZ729L - 6 2026-06-15
ANZ160L - 6 2026-07-10
ANZ089L - 6 2026-07-14
ANZ064L Air New Zealand 6 2026-06-04
ANZ061L - 6 2026-07-13
ANZ060L Air New Zealand 6 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 ANZ848L - Jul 15, 01:10 UTCJul 15, 01:35 UTC25m
2026-07-14 ANZ769L - Jul 14, 23:30 UTCJul 15, 00:05 UTC35m
2026-07-14 ANZ769L - Jul 14, 22:45 UTCJul 14, 23:00 UTC15m
2026-07-14 ANZ768L - Jul 14, 20:20 UTCJul 14, 21:35 UTC1h 15m
2026-07-14 ANZ841L - Jul 14, 19:05 UTCJul 14, 19:30 UTC25m
2026-07-14 ANZ854L - Jul 14, 07:15 UTCJul 14, 07:35 UTC20m
2026-07-14 ANZ837L - Jul 14, 06:00 UTCJul 14, 06:20 UTC20m
2026-07-14 ANZ832L - Jul 14, 04:35 UTCJul 14, 05:00 UTC25m
2026-07-14 ANZ843L - Jul 14, 03:05 UTCJul 14, 03:30 UTC25m
2026-07-14 ANZ089L - Jul 14, 00:50 UTCJul 14, 01:40 UTC50m
2026-07-13 ANZ061L - Jul 13, 21:50 UTCJul 13, 22:35 UTC45m
2026-07-13 ANZ061L - Jul 13, 20:15 UTCJul 13, 21:10 UTC55m
2026-07-13 ANZ212L - Jul 13, 02:35 UTCJul 13, 03:55 UTC1h 20m
2026-07-13 ANZ509L - Jul 13, 00:15 UTCJul 13, 01:30 UTC1h 15m
2026-07-12 ANZ146L - Jul 12, 21:50 UTCJul 12, 22:20 UTC30m
2026-07-12 ANZ127L - Jul 12, 20:35 UTCJul 12, 21:00 UTC25m
2026-07-12 ANZ229L - Jul 12, 18:15 UTCJul 12, 18:40 UTC25m
2026-07-12 ANZ226L MHB → WRE Jul 12, 08:30 UTCJul 12, 08:55 UTC25m
2026-07-12 ANZ172L - Jul 12, 06:25 UTCJul 12, 07:15 UTC50m
2026-07-12 ANZ171L - Jul 12, 04:40 UTCJul 12, 05:25 UTC45m
2026-07-12 ANZ174L - Jul 12, 02:25 UTCJul 12, 03:10 UTC45m
2026-07-12 ANZ169L - Jul 12, 00:25 UTCJul 12, 01:10 UTC45m
2026-07-11 ANZ092L - Jul 11, 22:25 UTCJul 11, 23:05 UTC40m
2026-07-11 ANZ091L - Jul 11, 21:00 UTCJul 11, 21:35 UTC35m
2026-07-11 ANZ273L - Jul 11, 01:10 UTCJul 11, 01:40 UTC30m
2026-07-10 ANZ276L - Jul 10, 23:55 UTCJul 11, 00:20 UTC25m
2026-07-10 ANZ128L - Jul 10, 22:05 UTCJul 10, 22:30 UTC25m
2026-07-10 ANZ129L - Jul 10, 20:45 UTCJul 10, 21:15 UTC30m
2026-07-10 ANZ160L - Jul 10, 18:25 UTCJul 10, 19:10 UTC45m
2026-07-10 ANZ286L - Jul 10, 05:50 UTCJul 10, 06:45 UTC55m
2026-07-10 ANZ312L - Jul 10, 03:25 UTCJul 10, 03:50 UTC25m
2026-07-10 ANZ309L - Jul 10, 01:50 UTCJul 10, 02:10 UTC20m
2026-07-09 ANZ255L - Jul 9, 23:15 UTCJul 10, 00:20 UTC1h 5m
2026-07-09 ANZ264L - Jul 9, 21:00 UTCJul 9, 22:05 UTC1h 5m
2026-07-09 ANZ251L - Jul 9, 18:40 UTCJul 9, 19:45 UTC1h 5m
2026-07-09 ANZ262L - Jul 9, 07:35 UTCJul 9, 08:40 UTC1h 5m
2026-07-09 ANZ895L NPE → WLG Jul 9, 05:10 UTCJul 9, 05:55 UTC45m
2026-07-09 ANZ886L WLG → NPE Jul 9, 03:35 UTCJul 9, 04:25 UTC50m
2026-07-09 ANZ308L - Jul 9, 01:45 UTCJul 9, 02:10 UTC25m
2026-07-09 ANZ323L - Jul 9, 00:30 UTCJul 9, 00:45 UTC15m
2026-07-08 ANZ334L - Jul 8, 19:45 UTCJul 8, 20:40 UTC55m
2026-07-07 ANZ375L - Jul 7, 06:30 UTCJul 7, 07:15 UTC45m
2026-07-07 ANZ795L - Jul 7, 04:30 UTCJul 7, 05:10 UTC40m
2026-07-07 ANZ796L WLG → NPL Jul 7, 03:05 UTCJul 7, 03:50 UTC45m
2026-07-06 ANZ255L - Jul 6, 23:20 UTCJul 7, 00:20 UTC1h 0m
2026-07-06 ANZ264L - Jul 6, 21:00 UTCJul 6, 22:10 UTC1h 10m
2026-07-06 ANZ251L - Jul 6, 18:40 UTCJul 6, 19:35 UTC55m
2026-07-06 ANZ972L - Jul 6, 07:00 UTCJul 6, 07:30 UTC30m
2026-07-06 ANZ289L - Jul 6, 03:35 UTCJul 6, 05:55 UTC2h 20m
2026-07-06 ANZ167L - Jul 6, 01:55 UTCJul 6, 02:40 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-NEJ page for operator, model, and routing details .

Mode-S C819DC frequently asked

What is Mode-S code C819DC?
C819DC is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEJ.
Where is Mode-S C819DC registered?
Mode-S code C819DC 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 C819DC 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 C819DC, octal 62014734, decimal 13,113,820.
What flights does C819DC operate?
Mode-S C819DC has broadcast 20 distinct callsigns, including ANZ171L, ANZ164L, ANZ163L, ANZ796L, ANZ795L.