Apparatus

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sensors Mode-S transponder

C81377

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-JCV · CESSNA 182 Skylane

Hex
C81377
Octal
62011567
Decimal
13,112,183
Country
NZ
Tail
ZK-JCV
Type
C182
No current signal · last broadcast Jul 21, 08:10 UTC
Flights observed
22
Distinct callsigns
1
Country
NZ
Last broadcast
Jul 21, 08:10 UTC

Last known position

Most recent position reported by Mode-S C81377.

Country allocation

The ICAO 24-bit address C81377 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
ZKJCV - 22 2026-07-21

Recent flights last 22

DateFlightRouteTakeoffLandingDuration
2026-07-21 ZKJCV - Jul 21, 07:10 UTCJul 21, 08:10 UTC1h 0m
2026-07-18 ZKJCV - Jul 18, 02:14 UTCJul 18, 03:00 UTC46m
2026-07-18 ZKJCV - Jul 18, 00:39 UTCJul 18, 01:00 UTC20m
2026-07-17 ZKJCV - Jul 17, 22:00 UTCJul 17, 22:49 UTC50m
2026-07-03 ZKJCV WTZ → AMZ Jul 3, 03:25 UTCJul 3, 03:45 UTC20m
2026-07-03 ZKJCV - Jul 3, 02:10 UTCJul 3, 02:30 UTC20m
2026-07-02 ZKJCV - Jul 2, 07:50 UTCJul 2, 08:25 UTC35m
2026-07-01 ZKJCV - Jul 1, 06:40 UTCJul 1, 07:35 UTC55m
2026-06-28 ZKJCV AMZ → AMZ Jun 28, 02:05 UTCJun 28, 03:00 UTC55m
2026-06-22 ZKJCV - Jun 22, 07:49 UTCJun 22, 08:29 UTC40m
2026-06-20 ZKJCV - Jun 20, 02:29 UTCJun 20, 02:40 UTC10m
2026-06-19 ZKJCV - Jun 19, 22:14 UTCJun 19, 22:24 UTC10m
2026-06-19 ZKJCV - Jun 19, 01:50 UTCJun 19, 02:04 UTC15m
2026-06-19 ZKJCV - Jun 19, 00:49 UTCJun 19, 01:04 UTC15m
2026-06-11 ZKJCV - Jun 11, 07:55 UTCJun 11, 08:30 UTC35m
2026-06-10 ZKJCV - Jun 10, 07:35 UTCJun 10, 08:20 UTC45m
2026-05-29 ZKJCV - May 29, 00:45 UTCMay 29, 01:05 UTC20m
2026-05-28 ZKJCV - May 28, 23:50 UTCMay 29, 00:05 UTC15m
2026-05-17 ZKJCV - May 17, 23:40 UTCMay 18, 00:20 UTC40m
2026-05-17 ZKJCV - May 17, 01:55 UTCMay 17, 02:30 UTC35m
2026-05-11 ZKJCV - May 11, 00:19 UTCMay 11, 01:20 UTC1h 0m
2026-04-25 ZKJCV - Apr 25, 04:05 UTCApr 25, 04:50 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-JCV page for operator, model, and routing details .

Mode-S C81377 frequently asked

What is Mode-S code C81377?
C81377 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-JCV.
Where is Mode-S C81377 registered?
Mode-S code C81377 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 C81377 broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 08:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C81377, octal 62011567, decimal 13,112,183.
What flights does C81377 operate?
Mode-S C81377 has broadcast 1 distinct callsign, including ZKJCV.