Apparatus

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sensors Mode-S transponder

C81EA8

ICAO 24-bit transponder address · allocated to New Zealand

Hex
C81EA8
Octal
62017250
Decimal
13,115,048
Country
NZ
No current signal · last broadcast 4h ago
Flights observed
136
Distinct callsigns
3
Country
NZ
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S C81EA8.

Country allocation

The ICAO 24-bit address C81EA8 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 3 distinct

Callsign Airline Flights Last seen
AMD8 - 118 2026-07-16
ZKIGB - 16 2026-07-16
IGB - 2 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 AMD8 - Jul 16, 04:05 UTCJul 16, 04:25 UTC20m
2026-07-16 ZKIGB - Jul 16, 03:10 UTCJul 16, 03:30 UTC20m
2026-07-15 ZKIGB CHC → CHC Jul 15, 23:00 UTCJul 15, 23:55 UTC55m
2026-07-15 ZKIGB - Jul 15, 22:45 UTCJul 15, 22:55 UTC10m
2026-07-15 ZKIGB - Jul 15, 22:25 UTCJul 15, 22:35 UTC10m
2026-07-15 AMD8 - Jul 15, 09:00 UTCJul 15, 09:20 UTC20m
2026-07-15 AMD8 - Jul 15, 06:05 UTCJul 15, 06:25 UTC20m
2026-07-15 AMD8 - Jul 15, 03:25 UTCJul 15, 04:05 UTC40m
2026-07-15 AMD8 - Jul 15, 03:05 UTCJul 15, 03:15 UTC10m
2026-07-14 AMD8 - Jul 14, 08:40 UTCJul 14, 08:55 UTC15m
2026-07-14 AMD8 - Jul 14, 07:40 UTCJul 14, 07:50 UTC10m
2026-07-14 AMD8 - Jul 14, 03:10 UTCJul 14, 03:20 UTC10m
2026-07-13 AMD8 - Jul 13, 12:00 UTCJul 13, 12:15 UTC15m
2026-07-13 AMD8 - Jul 13, 10:10 UTCJul 13, 10:40 UTC30m
2026-07-12 AMD8 - Jul 12, 08:30 UTCJul 12, 09:15 UTC45m
2026-07-12 AMD8 - Jul 12, 06:30 UTCJul 12, 06:40 UTC10m
2026-07-11 AMD8 - Jul 11, 17:30 UTCJul 11, 17:40 UTC10m
2026-07-11 AMD8 - Jul 11, 06:20 UTCJul 11, 07:00 UTC40m
2026-07-11 AMD8 - Jul 11, 05:15 UTCJul 11, 05:25 UTC10m
2026-07-11 AMD8 - Jul 11, 03:40 UTCJul 11, 03:55 UTC15m
2026-07-11 AMD8 - Jul 11, 01:50 UTCJul 11, 02:15 UTC25m
2026-07-10 AMD8 - Jul 10, 07:40 UTCJul 10, 08:15 UTC35m
2026-07-10 AMD8 - Jul 10, 06:20 UTCJul 10, 06:30 UTC10m
2026-07-10 AMD8 - Jul 10, 04:55 UTCJul 10, 05:40 UTC45m
2026-07-10 AMD8 - Jul 10, 01:35 UTCJul 10, 01:55 UTC20m
2026-07-09 AMD8 - Jul 9, 23:50 UTCJul 10, 00:35 UTC45m
2026-07-09 AMD8 - Jul 9, 21:55 UTCJul 9, 22:15 UTC20m
2026-07-09 AMD8 CHC → CHC Jul 9, 03:05 UTCJul 9, 03:50 UTC45m
2026-06-18 ZKIGB - Jun 18, 01:15 UTCJun 18, 03:15 UTC2h 0m
2026-06-17 IGB - Jun 17, 07:05 UTCJun 17, 09:35 UTC2h 30m
2026-06-16 ZKIGB - Jun 16, 00:24 UTCJun 16, 02:40 UTC2h 15m
2026-06-14 ZKIGB - Jun 14, 09:00 UTCJun 14, 09:35 UTC35m
2026-06-14 ZKIGB - Jun 14, 07:55 UTCJun 14, 08:25 UTC30m
2026-06-14 ZKIGB - Jun 14, 06:45 UTCJun 14, 07:10 UTC25m
2026-06-14 AMD8 - Jun 14, 01:05 UTCJun 14, 01:20 UTC15m
2026-06-13 AMD8 - Jun 13, 04:20 UTCJun 13, 04:35 UTC15m
2026-06-13 AMD8 - Jun 13, 02:20 UTCJun 13, 02:40 UTC20m
2026-06-13 AMD8 - Jun 13, 01:10 UTCJun 13, 01:20 UTC10m
2026-06-13 AMD8 - Jun 13, 00:05 UTCJun 13, 00:20 UTC15m
2026-06-12 AMD8 - Jun 12, 22:40 UTCJun 12, 22:55 UTC15m
2026-06-12 ZKIGB CHC → CHC Jun 12, 06:50 UTCJun 12, 07:55 UTC1h 5m
2026-06-12 AMD8 - Jun 12, 04:00 UTCJun 12, 04:30 UTC30m
2026-06-12 AMD8 - Jun 12, 02:10 UTCJun 12, 02:40 UTC30m
2026-06-10 AMD8 - Jun 10, 05:15 UTCJun 10, 05:30 UTC15m
2026-06-09 AMD8 - Jun 9, 10:05 UTCJun 9, 11:00 UTC55m
2026-06-09 AMD8 - Jun 9, 09:05 UTCJun 9, 09:30 UTC25m
2026-06-03 AMD8 - Jun 3, 04:10 UTCJun 3, 04:20 UTC10m
2026-06-01 AMD8 - Jun 1, 21:10 UTCJun 1, 22:05 UTC55m
2026-06-01 AMD8 - Jun 1, 02:05 UTCJun 1, 02:15 UTC10m
2026-06-01 AMD8 - Jun 1, 00:05 UTCJun 1, 00:15 UTC10m

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.

Mode-S C81EA8 frequently asked

What is Mode-S code C81EA8?
C81EA8 is an ICAO 24-bit transponder address. Allocated to New Zealand.
Where is Mode-S C81EA8 registered?
Mode-S code C81EA8 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 C81EA8 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81EA8, octal 62017250, decimal 13,115,048.
What flights does C81EA8 operate?
Mode-S C81EA8 has broadcast 3 distinct callsigns, including AMD8, ZKIGB, IGB.