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sensors Mode-S transponder

C818A7

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-TAI · CESSNA 172 Skyhawk

Hex
C818A7
Octal
62014247
Decimal
13,113,511
Country
NZ
Tail
ZK-TAI
Type
C172
No current signal · last broadcast Jul 24, 04:00 UTC
Flights observed
110
Distinct callsigns
1
Country
NZ
Last broadcast
Jul 24, 04:00 UTC

Last known position

Most recent position reported by Mode-S C818A7.

Country allocation

The ICAO 24-bit address C818A7 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 1 distinct

Callsign Airline Flights Last seen
ZKTAI - 110 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 ZKTAI - Jul 24, 02:50 UTCJul 24, 04:00 UTC1h 10m
2026-07-24 ZKTAI - Jul 24, 00:30 UTCJul 24, 01:40 UTC1h 10m
2026-07-23 ZKTAI - Jul 23, 05:30 UTCJul 23, 06:30 UTC1h 0m
2026-07-23 ZKTAI - Jul 23, 01:50 UTCJul 23, 02:25 UTC35m
2026-07-22 ZKTAI - Jul 22, 01:50 UTCJul 22, 02:25 UTC35m
2026-07-20 ZKTAI - Jul 20, 22:35 UTCJul 21, 00:10 UTC1h 34m
2026-07-19 ZKTAI - Jul 19, 07:20 UTCJul 19, 07:30 UTC10m
2026-07-19 ZKTAI - Jul 19, 06:35 UTCJul 19, 06:45 UTC10m
2026-07-19 ZKTAI - Jul 19, 05:40 UTCJul 19, 05:50 UTC10m
2026-07-19 ZKTAI - Jul 19, 02:00 UTCJul 19, 03:45 UTC1h 45m
2026-07-18 ZKTAI - Jul 18, 02:40 UTCJul 18, 04:40 UTC2h 1m
2026-07-17 ZKTAI - Jul 17, 22:40 UTCJul 18, 01:10 UTC2h 30m
2026-07-17 ZKTAI - Jul 17, 02:59 UTCJul 17, 04:54 UTC1h 55m
2026-07-17 ZKTAI - Jul 17, 00:04 UTCJul 17, 01:39 UTC1h 35m
2026-07-16 ZKTAI - Jul 16, 04:25 UTCJul 16, 04:50 UTC25m
2026-07-16 ZKTAI - Jul 16, 03:05 UTCJul 16, 03:50 UTC45m
2026-07-15 ZKTAI - Jul 15, 23:20 UTCJul 16, 00:40 UTC1h 20m
2026-07-14 ZKTAI - Jul 14, 20:25 UTCJul 14, 21:35 UTC1h 10m
2026-07-14 ZKTAI - Jul 14, 03:45 UTCJul 14, 04:55 UTC1h 10m
2026-07-11 ZKTAI - Jul 11, 03:10 UTCJul 11, 04:55 UTC1h 45m
2026-07-11 ZKTAI - Jul 11, 00:10 UTCJul 11, 01:50 UTC1h 40m
2026-07-10 ZKTAI - Jul 10, 02:35 UTCJul 10, 02:45 UTC10m
2026-07-09 ZKTAI - Jul 9, 21:30 UTCJul 9, 22:10 UTC40m
2026-07-09 ZKTAI - Jul 9, 03:10 UTCJul 9, 05:00 UTC1h 50m
2026-07-08 ZKTAI - Jul 8, 02:25 UTCJul 8, 04:00 UTC1h 35m
2026-07-07 ZKTAI - Jul 7, 22:00 UTCJul 7, 23:30 UTC1h 30m
2026-07-05 ZKTAI - Jul 5, 03:30 UTCJul 5, 05:30 UTC2h 0m
2026-06-30 ZKTAI - Jun 30, 20:20 UTCJun 30, 21:30 UTC1h 10m
2026-06-30 ZKTAI - Jun 30, 02:20 UTCJun 30, 03:55 UTC1h 35m
2026-06-28 ZKTAI - Jun 28, 04:35 UTCJun 28, 05:04 UTC30m
2026-06-28 ZKTAI - Jun 28, 02:49 UTCJun 28, 03:09 UTC20m
2026-06-28 ZKTAI - Jun 28, 01:34 UTCJun 28, 02:10 UTC35m
2026-06-28 ZKTAI - Jun 28, 00:59 UTCJun 28, 01:19 UTC20m
2026-06-27 ZKTAI - Jun 27, 22:40 UTCJun 27, 23:14 UTC35m
2026-06-27 ZKTAI TRG → TRG Jun 27, 05:59 UTCJun 27, 06:19 UTC20m
2026-06-22 ZKTAI - Jun 22, 02:14 UTCJun 22, 03:05 UTC50m
2026-06-21 ZKTAI - Jun 21, 22:34 UTCJun 21, 23:40 UTC1h 5m
2026-06-20 ZKTAI - Jun 20, 04:14 UTCJun 20, 04:59 UTC45m
2026-06-19 ZKTAI - Jun 19, 22:04 UTCJun 19, 22:19 UTC15m
2026-06-18 ZKTAI - Jun 18, 23:20 UTCJun 19, 01:04 UTC1h 44m
2026-06-14 ZKTAI - Jun 14, 00:25 UTCJun 14, 01:00 UTC35m
2026-06-13 ZKTAI TRG → TRG Jun 13, 22:35 UTCJun 13, 23:05 UTC30m
2026-06-13 ZKTAI - Jun 13, 02:05 UTCJun 13, 03:10 UTC1h 5m
2026-06-12 ZKTAI - Jun 12, 23:50 UTCJun 13, 01:10 UTC1h 20m
2026-06-12 ZKTAI - Jun 12, 03:30 UTCJun 12, 04:45 UTC1h 15m
2026-06-11 ZKTAI - Jun 11, 23:30 UTCJun 12, 01:00 UTC1h 30m
2026-06-10 ZKTAI - Jun 10, 03:40 UTCJun 10, 05:10 UTC1h 30m
2026-06-08 ZKTAI - Jun 8, 01:35 UTCJun 8, 03:50 UTC2h 15m
2026-06-07 ZKTAI - Jun 7, 03:55 UTCJun 7, 04:05 UTC10m
2026-06-06 ZKTAI - Jun 6, 03:25 UTCJun 6, 04:20 UTC55m

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

Mode-S C818A7 frequently asked

What is Mode-S code C818A7?
C818A7 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-TAI.
Where is Mode-S C818A7 registered?
Mode-S code C818A7 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 C818A7 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 04:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C818A7, octal 62014247, decimal 13,113,511.
What flights does C818A7 operate?
Mode-S C818A7 has broadcast 1 distinct callsign, including ZKTAI.