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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 Jul 26, 22:20 UTC
Flights observed
509
Distinct callsigns
20
Country
NZ
Last broadcast
Jul 26, 22:20 UTC

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
ANZ164L - 9 2026-07-20
ANZ163L - 9 2026-07-19
ANZ769L Air New Zealand 8 2026-07-20
ANZ171L - 8 2026-07-12
ANZ060L Air New Zealand 8 2026-07-25
ANZ843L - 7 2026-07-22
ANZ832L - 7 2026-07-24
ANZ796L - 7 2026-07-07
ANZ795L - 7 2026-07-07
ANZ793L - 7 2026-06-19
ANZ792L - 7 2026-06-19
ANZ229L - 7 2026-07-12
ANZ226L - 7 2026-07-12
ANZ172L - 7 2026-07-12
ANZ064L - 7 2026-07-16
ANZ841L Air New Zealand 6 2026-07-20
ANZ837L - 6 2026-07-24
ANZ831L - 6 2026-06-26
ANZ830L - 6 2026-06-26
ANZ729L - 6 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANZ318L NSN → WLG Jul 26, 21:45 UTCJul 26, 22:15 UTC30m
2026-07-26 ANZ315L WLG → NSN Jul 26, 20:35 UTCJul 26, 21:00 UTC25m
2026-07-26 ANZ507L GIS → WLG Jul 26, 18:45 UTCJul 26, 19:50 UTC1h 5m
2026-07-26 ANZ161L AKL → GIS Jul 26, 07:30 UTCJul 26, 08:10 UTC40m
2026-07-26 ANZ138L TRG → AKL Jul 26, 04:40 UTCJul 26, 05:25 UTC45m
2026-07-26 ANZ137L AKL → TRG Jul 26, 03:35 UTCJul 26, 04:00 UTC25m
2026-07-26 ANZ273L KKE → AKL Jul 26, 01:10 UTCJul 26, 01:45 UTC35m
2026-07-25 ANZ276L AKL → KKE Jul 25, 23:45 UTCJul 26, 00:15 UTC30m
2026-07-25 ANZ060L NSN → AKL Jul 25, 20:45 UTCJul 25, 22:00 UTC1h 15m
2026-07-24 ANZ854L CHC → NSN Jul 24, 07:10 UTCJul 24, 07:50 UTC40m
2026-07-24 ANZ837L - Jul 24, 05:55 UTCJul 24, 06:15 UTC20m
2026-07-24 ANZ832L - Jul 24, 04:40 UTCJul 24, 05:00 UTC20m
2026-07-22 ANZ832L - Jul 22, 04:35 UTCJul 22, 04:55 UTC20m
2026-07-22 ANZ843L - Jul 22, 02:45 UTCJul 22, 03:25 UTC40m
2026-07-21 ANZ517L WLG → NSN Jul 21, 23:10 UTCJul 21, 23:35 UTC25m
2026-07-21 ANZ336L CHC → WLG Jul 21, 20:15 UTCJul 21, 21:00 UTC45m
2026-07-21 ANZ763L NPL → CHC Jul 21, 05:15 UTCJul 21, 06:20 UTC1h 5m
2026-07-21 ANZ764L CHC → NPL Jul 21, 03:10 UTCJul 21, 04:15 UTC1h 5m
2026-07-20 ANZ769L NPL → CHC Jul 20, 23:10 UTCJul 21, 00:15 UTC1h 5m
2026-07-20 ANZ768L CHC → NPL Jul 20, 20:25 UTCJul 20, 21:30 UTC1h 5m
2026-07-20 ANZ841L NSN → CHC Jul 20, 19:00 UTCJul 20, 19:45 UTC45m
2026-07-20 ANZ087L AKL → NSN Jul 20, 08:55 UTCJul 20, 10:00 UTC1h 5m
2026-07-20 ANZ164L - Jul 20, 01:00 UTCJul 20, 01:45 UTC45m
2026-07-19 ANZ163L - Jul 19, 22:10 UTCJul 19, 22:50 UTC40m
2026-07-19 ANZ208L - Jul 19, 18:10 UTCJul 19, 19:40 UTC1h 30m
2026-07-19 ANZ205L AKL → BHE Jul 19, 06:50 UTCJul 19, 08:00 UTC1h 10m
2026-07-19 ANZ114L - Jul 19, 04:25 UTCJul 19, 05:20 UTC55m
2026-07-19 ANZ113L - Jul 19, 02:35 UTCJul 19, 03:30 UTC55m
2026-07-19 ANZ598L - Jul 19, 00:35 UTCJul 19, 01:25 UTC50m
2026-07-18 ANZ115L - Jul 18, 22:55 UTCJul 18, 23:55 UTC1h 0m
2026-07-18 ANZ060L - Jul 18, 20:50 UTCJul 18, 22:05 UTC1h 15m
2026-07-17 ANZ087L - Jul 17, 08:30 UTCJul 17, 09:45 UTC1h 15m
2026-07-17 ANZ096L - Jul 17, 06:29 UTCJul 17, 07:05 UTC35m
2026-07-17 ANZ095L - Jul 17, 05:04 UTCJul 17, 05:39 UTC35m
2026-07-17 ANZ034L NPL → AKL Jul 17, 01:20 UTCJul 17, 01:59 UTC40m
2026-07-16 ANZ045L AKL → NPL Jul 16, 23:59 UTCJul 17, 00:40 UTC40m
2026-07-16 ANZ092L - Jul 16, 22:10 UTCJul 16, 22:45 UTC35m
2026-07-16 ANZ091L - Jul 16, 20:49 UTCJul 16, 21:25 UTC35m
2026-07-16 ANZ064L - Jul 16, 18:15 UTCJul 16, 19:25 UTC1h 10m
2026-07-16 ANZ309L WLG → NSN Jul 16, 02:15 UTCJul 16, 02:35 UTC20m
2026-07-15 ANZ885L NPE → WLG Jul 15, 23:15 UTCJul 16, 00:10 UTC55m
2026-07-15 ANZ884L WLG → NPE Jul 15, 21:45 UTCJul 15, 22:25 UTC40m
2026-07-15 ANZ190L - Jul 15, 19:05 UTCJul 15, 20:00 UTC55m
2026-07-15 ANZ199L - Jul 15, 05:55 UTCJul 15, 07:05 UTC1h 10m
2026-07-15 ANZ524L - Jul 15, 04:35 UTCJul 15, 04:50 UTC15m
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

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 Jul 26, 22:20 UTC.
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 ANZ164L, ANZ163L, ANZ769L, ANZ171L, ANZ060L.