sensors Mode-S transponder

C81959

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C81959
Octal
62014531
Decimal
13,113,689
Country
NZ
Tail
ZK-NEE
Type
DH8C
Broadcasting now · callsign ANZ012L · 3,050 ft
Flights observed
225
Distinct callsigns
20
Country
NZ
Last broadcast
35m ago

Current position

C81959 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C81959 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ANZ012L NPE → AKL May 29, 23:55 UTCMay 30, 00:15 UTC20m
2026-05-29 ANZ005L AKL → NPE May 29, 22:20 UTCMay 29, 23:10 UTC50m
2026-05-29 ANZ126L TRG → AKL May 29, 19:25 UTCMay 29, 19:55 UTC30m
2026-05-29 ANZ143L AKL → TRG May 29, 06:40 UTCMay 29, 07:05 UTC25m
2026-05-29 ANZ138L TRG → AKL May 29, 04:35 UTCMay 29, 05:00 UTC25m
2026-05-29 ANZ137L AKL → TRG May 29, 03:25 UTCMay 29, 03:50 UTC25m
2026-05-28 ANZ166L GIS → AKL May 28, 23:40 UTCMay 29, 00:30 UTC50m
2026-05-28 ANZ282L WLG → GIS May 28, 21:15 UTCMay 28, 22:00 UTC45m
2026-05-28 ANZ334L CHC → WLG May 28, 19:45 UTCMay 28, 20:30 UTC45m
2026-05-28 ANZ763L NPL → CHC May 28, 05:55 UTCMay 28, 06:30 UTC35m
2026-05-28 ANZ763L NPL → CHC May 28, 05:00 UTCMay 28, 05:15 UTC15m
2026-05-28 ANZ764L CHC → NPL May 28, 03:15 UTCMay 28, 04:25 UTC1h 10m
2026-05-27 ANZ331L WLG → CHC May 27, 18:45 UTCMay 27, 19:50 UTC1h 5m
2026-05-27 ANZ257L TRG → WLG May 27, 05:59 UTCMay 27, 07:15 UTC1h 16m
2026-05-27 ANZ258L WLG → TRG May 27, 04:19 UTCMay 27, 05:14 UTC55m
2026-05-27 ANZ312L NSN → WLG May 27, 03:14 UTCMay 27, 03:24 UTC10m
2026-05-27 ANZ089L AKL → NSN May 27, 00:30 UTCMay 27, 01:24 UTC55m
2026-05-26 ANZ164L GIS → AKL May 26, 22:20 UTCMay 26, 23:05 UTC45m
2026-05-26 ANZ163L AKL → GIS May 26, 20:34 UTCMay 26, 21:14 UTC40m
2026-05-26 ANZ208L BHE → AKL May 26, 18:19 UTCMay 26, 19:10 UTC50m
2026-05-26 ANZ205L AKL → BHE May 26, 06:39 UTCMay 26, 07:49 UTC1h 10m
2026-05-26 ANZ212L BHE → AKL May 26, 02:55 UTCMay 26, 03:45 UTC50m
2026-05-26 ANZ509L AKL → BHE May 26, 00:14 UTCMay 26, 01:24 UTC1h 10m
2026-05-25 ANZ221L - May 25, 21:40 UTCMay 25, 22:00 UTC20m
2026-05-25 ANZ220L - May 25, 20:34 UTCMay 25, 20:50 UTC15m
2026-05-25 ANZ160L GIS → AKL May 25, 18:20 UTCMay 25, 19:05 UTC45m
2026-05-25 ANZ161L AKL → GIS May 25, 07:25 UTCMay 25, 08:05 UTC40m
2026-05-25 ANZ116L - May 25, 04:25 UTCMay 25, 05:20 UTC55m
2026-05-25 ANZ109L - May 25, 02:45 UTCMay 25, 03:45 UTC1h 0m
2026-05-24 ANZ129L AKL → TRG May 24, 21:00 UTCMay 24, 21:25 UTC25m
2026-05-24 ANZ208L BHE → AKL May 24, 18:15 UTCMay 24, 19:10 UTC55m
2026-05-24 ANZ205L AKL → BHE May 24, 06:50 UTCMay 24, 07:55 UTC1h 5m
2026-05-24 ANZ096L TUO → AKL May 24, 05:15 UTCMay 24, 05:55 UTC40m
2026-05-24 ANZ095L AKL → TUO May 24, 03:55 UTCMay 24, 04:30 UTC35m
2026-05-24 ANZ162L GIS → AKL May 24, 00:50 UTCMay 24, 01:40 UTC50m
2026-05-23 ANZ284L WLG → GIS May 23, 23:05 UTCMay 24, 00:00 UTC55m
2026-05-23 ANZ318L NSN → WLG May 23, 22:15 UTCMay 23, 22:20 UTC5m
2026-05-21 ANZ854L CHC → NSN May 21, 07:10 UTCMay 21, 07:30 UTC20m
2026-05-21 ANZ837L - May 21, 06:00 UTCMay 21, 06:20 UTC20m
2026-05-21 ANZ832L - May 21, 04:45 UTCMay 21, 05:00 UTC15m
2026-05-21 ANZ843L NSN → CHC May 21, 03:05 UTCMay 21, 03:20 UTC15m
2026-05-20 ANZ305L WLG → NSN May 20, 21:35 UTCMay 20, 21:45 UTC10m
2026-05-20 ANZ251L TRG → WLG May 20, 18:40 UTCMay 20, 19:45 UTC1h 5m
2026-05-20 ANZ143L AKL → TRG May 20, 06:45 UTCMay 20, 07:05 UTC20m
2026-05-20 ANZ223L - May 20, 05:35 UTCMay 20, 05:55 UTC20m
2026-05-20 ANZ222L - May 20, 04:25 UTCMay 20, 04:45 UTC21m
2026-05-20 ANZ244L TRG → AKL May 20, 00:35 UTCMay 20, 01:05 UTC30m
2026-05-19 ANZ133L AKL → TRG May 19, 23:20 UTCMay 19, 23:45 UTC25m
2026-05-19 ANZ060L NSN → AKL May 19, 21:10 UTCMay 19, 21:55 UTC45m
2026-05-19 ANZ063L AKL → NSN May 19, 18:50 UTCMay 19, 19:35 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-NEE page for operator, model, and routing details .

Mode-S C81959 frequently asked

What is Mode-S code C81959?
C81959 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEE.
Where is Mode-S C81959 registered?
Mode-S code C81959 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 C81959 broadcasting right now?
Yes. Mode-S C81959 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81959, octal 62014531, decimal 13,113,689.
What flights does C81959 operate?
Mode-S C81959 has broadcast 20 distinct callsigns, including ANZ262L, ANZ126L, ANZ796L, ANZ375L, ANZ143L.