Apparatus

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sensors Mode-S transponder

C81B24

ICAO 24-bit transponder address · allocated to New Zealand

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

Hex
C81B24
Octal
62015444
Decimal
13,114,148
Country
NZ
Tail
ZK-NEZ
Type
DH8C
No current signal · last broadcast Jul 26, 20:15 UTC
Flights observed
550
Distinct callsigns
20
Country
NZ
Last broadcast
Jul 26, 20:15 UTC

Last known position

Most recent position reported by Mode-S C81B24.

Country allocation

The ICAO 24-bit address C81B24 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
ANZ895L Air New Zealand 10 2026-07-23
ANZ886L Air New Zealand 10 2026-07-23
ANZ262L - 8 2026-07-20
ANZ129L - 8 2026-07-13
ANZ128L - 8 2026-07-13
ANZ126L Air New Zealand 8 2026-06-24
ANZ769L Air New Zealand 7 2026-07-25
ANZ321L Air New Zealand 7 2026-07-23
ANZ277L - 7 2026-07-14
ANZ270L - 7 2026-07-14
ANZ885L Air New Zealand 6 2026-07-22
ANZ884L Air New Zealand 6 2026-07-22
ANZ763L Air New Zealand 6 2026-07-26
ANZ726L Air New Zealand 6 2026-05-21
ANZ325L - 6 2026-06-19
ANZ323L - 6 2026-07-21
ANZ305L Air New Zealand 6 2026-06-15
ANZ289L - 6 2026-06-22
ANZ251L Air New Zealand 6 2026-07-20
ANZ222L - 6 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ANZ331L WLG → CHC Jul 26, 19:20 UTCJul 26, 20:15 UTC55m
2026-07-26 ANZ382L CHC → WLG Jul 26, 08:00 UTCJul 26, 08:50 UTC50m
2026-07-26 ANZ763L NPL → CHC Jul 26, 05:15 UTCJul 26, 06:40 UTC1h 26m
2026-07-26 ANZ764L CHC → NPL Jul 26, 03:30 UTCJul 26, 04:40 UTC1h 10m
2026-07-25 ANZ769L NPL → CHC Jul 25, 23:10 UTCJul 26, 00:10 UTC1h 0m
2026-07-25 ANZ768L CHC → NPL Jul 25, 20:55 UTCJul 25, 21:50 UTC55m
2026-07-24 ANZ763L NPL → CHC Jul 24, 05:50 UTCJul 24, 06:45 UTC55m
2026-07-24 ANZ764L CHC → NPL Jul 24, 03:10 UTCJul 24, 04:15 UTC1h 5m
2026-07-23 ANZ769L NPL → CHC Jul 23, 22:55 UTCJul 24, 00:00 UTC1h 5m
2026-07-23 ANZ768L CHC → NPL Jul 23, 20:25 UTCJul 23, 21:40 UTC1h 15m
2026-07-23 ANZ841L NSN → CHC Jul 23, 19:00 UTCJul 23, 19:40 UTC40m
2026-07-23 ANZ321L WLG → NSN Jul 23, 06:45 UTCJul 23, 07:10 UTC25m
2026-07-23 ANZ895L NPE → WLG Jul 23, 04:55 UTCJul 23, 05:45 UTC50m
2026-07-23 ANZ886L WLG → NPE Jul 23, 03:20 UTCJul 23, 04:05 UTC45m
2026-07-22 ANZ885L NPE → WLG Jul 22, 22:55 UTCJul 22, 23:45 UTC50m
2026-07-22 ANZ884L WLG → NPE Jul 22, 21:20 UTCJul 22, 22:05 UTC45m
2026-07-22 ANZ302L - Jul 22, 19:50 UTCJul 22, 20:25 UTC35m
2026-07-21 ANZ323L - Jul 21, 00:20 UTCJul 21, 00:45 UTC25m
2026-07-20 ANZ793L - Jul 20, 22:50 UTCJul 20, 23:40 UTC50m
2026-07-20 ANZ792L WLG → NPL Jul 20, 21:10 UTCJul 20, 21:30 UTC20m
2026-07-20 ANZ251L TRG → WLG Jul 20, 18:45 UTCJul 20, 20:05 UTC1h 20m
2026-07-20 ANZ262L - Jul 20, 07:10 UTCJul 20, 08:15 UTC1h 5m
2026-07-20 ANZ524L - Jul 20, 04:35 UTCJul 20, 05:05 UTC30m
2026-07-20 ANZ323L - Jul 20, 01:10 UTCJul 20, 01:40 UTC30m
2026-07-19 ANZ965L AKL → WLG Jul 19, 23:30 UTCJul 20, 00:25 UTC55m
2026-07-19 ANZ161L AKL → GIS Jul 19, 07:30 UTCJul 19, 08:05 UTC35m
2026-07-19 ANZ138L TRG → AKL Jul 19, 04:40 UTCJul 19, 05:10 UTC30m
2026-07-19 ANZ137L - Jul 19, 03:40 UTCJul 19, 04:00 UTC20m
2026-07-19 ANZ072L NSN → AKL Jul 19, 01:30 UTCJul 19, 02:35 UTC1h 5m
2026-07-18 ANZ517L - Jul 18, 23:10 UTCJul 18, 23:40 UTC30m
2026-07-18 ANZ318L NSN → WLG Jul 18, 21:55 UTCJul 18, 22:20 UTC25m
2026-07-17 ANZ321L - Jul 17, 06:40 UTCJul 17, 07:05 UTC25m
2026-07-17 ANZ895L NPE → WLG Jul 17, 05:04 UTCJul 17, 06:00 UTC55m
2026-07-17 ANZ886L WLG → NPE Jul 17, 03:34 UTCJul 17, 04:14 UTC40m
2026-07-16 ANZ255L - Jul 16, 23:20 UTCJul 17, 00:35 UTC1h 15m
2026-07-16 ANZ264L - Jul 16, 20:55 UTCJul 16, 21:50 UTC55m
2026-07-16 ANZ251L - Jul 16, 18:40 UTCJul 16, 19:55 UTC1h 15m
2026-07-16 ANZ262L - Jul 16, 07:15 UTCJul 16, 08:10 UTC55m
2026-07-16 ANZ895L - Jul 16, 04:55 UTCJul 16, 05:40 UTC45m
2026-07-16 ANZ886L WLG → NPE Jul 16, 03:30 UTCJul 16, 04:15 UTC45m
2026-07-16 ANZ730L - Jul 16, 01:45 UTCJul 16, 02:00 UTC15m
2026-07-16 ANZ729L WLG → BHE Jul 16, 00:45 UTCJul 16, 01:05 UTC20m
2026-07-15 ANZ318L - Jul 15, 22:40 UTCJul 15, 22:55 UTC15m
2026-07-15 ANZ315L - Jul 15, 20:45 UTCJul 15, 21:05 UTC20m
2026-07-15 ANZ507L - Jul 15, 18:40 UTCJul 15, 19:40 UTC1h 0m
2026-07-15 ANZ286L - Jul 15, 05:50 UTCJul 15, 06:45 UTC55m
2026-07-15 ANZ312L - Jul 15, 03:15 UTCJul 15, 03:30 UTC15m
2026-07-14 ANZ061L - Jul 14, 23:45 UTCJul 15, 00:35 UTC50m
2026-07-14 ANZ275L - Jul 14, 22:00 UTCJul 14, 22:30 UTC30m
2026-07-14 ANZ272L - Jul 14, 07:55 UTCJul 14, 08:25 UTC30m

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

Mode-S C81B24 frequently asked

What is Mode-S code C81B24?
C81B24 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NEZ.
Where is Mode-S C81B24 registered?
Mode-S code C81B24 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 C81B24 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81B24, octal 62015444, decimal 13,114,148.
What flights does C81B24 operate?
Mode-S C81B24 has broadcast 20 distinct callsigns, including ANZ895L, ANZ886L, ANZ262L, ANZ129L, ANZ128L.