Apparatus

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sensors Mode-S transponder

C8243A

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-NZM · BOEING 787-9 Dreamliner

Hex
C8243A
Octal
62022072
Decimal
13,116,474
Country
NZ
Tail
ZK-NZM
Type
B789
Broadcasting now · callsign ANZ2 · 20,900 ft
Flights observed
183
Distinct callsigns
20
Country
NZ
Last broadcast
2h ago

Current position

C8243A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C8243A 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
ANZ2 - 16 2026-07-09
ANZ1 - 16 2026-07-10
ANZ146 Air New Zealand 15 2026-07-18
ANZ145 - 15 2026-07-17
ANZ9 - 14 2026-07-09
ANZ10 - 11 2026-07-08
ANZ104 Air New Zealand 8 2026-06-03
ANZ77 - 7 2026-07-11
ANZ175 - 7 2026-06-19
ANZ103 Air New Zealand 7 2026-06-02
ANZ78 - 6 2026-07-12
ANZ80 - 4 2026-06-18
ANZ6 Air New Zealand 4 2026-05-14
ANZ289 - 4 2026-07-16
ANZ288 - 4 2026-07-17
ANZ176 - 4 2026-06-19
ANZ993 Air New Zealand 3 2026-05-10
ANZ953 Air New Zealand 3 2026-06-05
ANZ81 - 3 2026-06-18
ANZ5 Air New Zealand 3 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 ANZ146 BNE → AKL Jul 18, 02:35 UTCJul 18, 05:15 UTC2h 41m
2026-07-17 ANZ145 - Jul 17, 23:45 UTCJul 18, 00:35 UTC50m
2026-07-17 ANZ145 - Jul 17, 21:34 UTCJul 17, 21:50 UTC15m
2026-07-17 ANZ288 - Jul 17, 17:25 UTCJul 17, 17:44 UTC20m
2026-07-16 ANZ289 - Jul 16, 21:55 UTCJul 17, 08:20 UTC10h 25m
2026-07-16 ANZ289 - Jul 16, 11:05 UTCJul 16, 11:20 UTC15m
2026-07-16 ANZ122 MEL → AKL Jul 16, 04:50 UTCJul 16, 08:05 UTC3h 15m
2026-07-15 ANZ121 - Jul 15, 23:50 UTCJul 16, 02:55 UTC3h 5m
2026-07-15 ANZ146 BNE → AKL Jul 15, 03:05 UTCJul 15, 05:40 UTC2h 35m
2026-07-14 ANZ145 - Jul 14, 22:05 UTCJul 15, 01:20 UTC3h 14m
2026-07-12 ANZ78 - Jul 12, 19:20 UTCJul 12, 19:45 UTC25m
2026-07-12 ANZ78 - Jul 12, 09:40 UTCJul 12, 10:10 UTC30m
2026-07-11 ANZ77 - Jul 11, 23:15 UTCJul 12, 07:55 UTC8h 40m
2026-07-11 ANZ77 - Jul 11, 20:55 UTCJul 11, 21:15 UTC20m
2026-07-11 ANZ150 - Jul 11, 07:00 UTCJul 11, 07:15 UTC15m
2026-07-11 ANZ150 - Jul 11, 04:45 UTCJul 11, 05:25 UTC40m
2026-07-11 ANZ149 - Jul 11, 02:20 UTCJul 11, 03:10 UTC50m
2026-07-11 ANZ149 - Jul 11, 00:10 UTCJul 11, 00:20 UTC10m
2026-07-10 ANZ1 - Jul 10, 02:50 UTCJul 10, 18:50 UTC16h 0m
2026-07-10 ANZ1 - Jul 10, 02:30 UTCJul 10, 02:45 UTC15m
2026-07-09 ANZ2 - Jul 9, 07:55 UTCJul 9, 23:25 UTC15h 30m
2026-07-09 ANZ9 - Jul 9, 04:40 UTCJul 9, 05:30 UTC50m
2026-07-08 ANZ9 - Jul 8, 20:40 UTCJul 8, 20:50 UTC10m
2026-07-08 ANZ10 - Jul 8, 17:55 UTCJul 8, 18:15 UTC20m
2026-07-08 ANZ10 - Jul 8, 10:15 UTCJul 8, 10:45 UTC30m
2026-07-08 ANZ146 BNE → AKL Jul 8, 02:30 UTCJul 8, 05:10 UTC2h 40m
2026-07-07 ANZ145 AKL → BNE Jul 7, 21:40 UTCJul 8, 00:50 UTC3h 10m
2026-07-07 ANZ288 - Jul 7, 07:10 UTCJul 7, 17:25 UTC10h 15m
2026-07-06 ANZ288 - Jul 6, 20:55 UTCJul 7, 17:25 UTC20h 30m
2026-07-06 ANZ289 - Jul 6, 11:10 UTCJul 7, 07:25 UTC20h 15m
2026-07-06 ANZ146 BNE → AKL Jul 6, 04:30 UTCJul 6, 07:05 UTC2h 35m
2026-07-05 ANZ145 - Jul 5, 23:45 UTCJul 6, 02:45 UTC3h 0m
2026-07-05 ANZ1 JFK → AKL Jul 5, 04:30 UTCJul 5, 21:25 UTC16h 55m
2026-07-04 ANZ2 - Jul 4, 07:55 UTCJul 4, 23:35 UTC15h 40m
2026-07-03 ANZ9 - Jul 3, 20:55 UTCJul 4, 05:30 UTC8h 35m
2026-07-03 ANZ10 - Jul 3, 11:00 UTCJul 3, 18:50 UTC7h 50m
2026-07-03 ANZ122 MEL → AKL Jul 3, 03:05 UTCJul 3, 06:00 UTC2h 55m
2026-07-02 ANZ121 - Jul 2, 21:25 UTCJul 3, 01:00 UTC3h 35m
2026-07-01 ANZ291 - Jul 1, 23:25 UTCJul 2, 16:45 UTC17h 20m
2026-06-29 ANZ128 MEL → AKL Jun 29, 06:09 UTCJun 29, 09:10 UTC3h 0m
2026-06-29 ANZ127 - Jun 29, 00:00 UTCJun 29, 03:29 UTC3h 30m
2026-06-28 ANZ1 JFK → AKL Jun 28, 03:45 UTCJun 28, 20:09 UTC16h 25m
2026-06-27 ANZ2 - Jun 27, 07:55 UTCJun 27, 23:14 UTC15h 20m
2026-06-27 ANZ146 BNE → AKL Jun 27, 02:50 UTCJun 27, 05:25 UTC2h 35m
2026-06-26 ANZ145 - Jun 26, 21:50 UTCJun 27, 00:50 UTC3h 0m
2026-06-24 ANZ9 - Jun 24, 21:14 UTCJun 25, 05:39 UTC8h 25m
2026-06-24 ANZ10 - Jun 24, 10:45 UTCJun 24, 18:55 UTC8h 10m
2026-06-23 ANZ1 JFK → AKL Jun 23, 03:00 UTCJun 23, 19:55 UTC16h 55m
2026-06-22 ANZ2 - Jun 22, 07:54 UTCJun 22, 23:20 UTC15h 25m
2026-06-22 ANZ146 BNE → AKL Jun 22, 02:45 UTCJun 22, 05:10 UTC2h 25m

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

Mode-S C8243A frequently asked

What is Mode-S code C8243A?
C8243A is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-NZM.
Where is Mode-S C8243A registered?
Mode-S code C8243A 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 C8243A broadcasting right now?
Yes. Mode-S C8243A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C8243A, octal 62022072, decimal 13,116,474.
What flights does C8243A operate?
Mode-S C8243A has broadcast 20 distinct callsigns, including ANZ2, ANZ1, ANZ146, ANZ145, ANZ9.