Apparatus

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sensors Mode-S transponder

C813B6

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-HUP · EUROCOPTER BK117 C-1/2

Hex
C813B6
Octal
62011666
Decimal
13,112,246
Country
NZ
Tail
ZK-HUP
Type
BK17
No current signal · last broadcast Jul 21, 23:40 UTC
Flights observed
72
Distinct callsigns
1
Country
NZ
Last broadcast
Jul 21, 23:40 UTC

Last known position

Most recent position reported by Mode-S C813B6.

Country allocation

The ICAO 24-bit address C813B6 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
ZKHUP - 72 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 ZKHUP - Jul 21, 23:30 UTCJul 21, 23:40 UTC10m
2026-07-21 ZKHUP - Jul 21, 22:45 UTCJul 21, 22:55 UTC10m
2026-07-21 ZKHUP - Jul 21, 07:25 UTCJul 21, 07:40 UTC15m
2026-07-21 ZKHUP - Jul 21, 06:55 UTCJul 21, 07:15 UTC20m
2026-07-21 ZKHUP - Jul 21, 06:25 UTCJul 21, 06:50 UTC25m
2026-07-20 ZKHUP - Jul 20, 07:35 UTCJul 20, 08:00 UTC25m
2026-07-20 ZKHUP - Jul 20, 06:30 UTCJul 20, 07:15 UTC45m
2026-07-19 ZKHUP - Jul 19, 04:25 UTCJul 19, 04:55 UTC30m
2026-07-19 ZKHUP - Jul 19, 03:50 UTCJul 19, 04:00 UTC10m
2026-07-18 ZKHUP - Jul 18, 07:25 UTCJul 18, 07:50 UTC25m
2026-07-18 ZKHUP - Jul 18, 06:55 UTCJul 18, 07:10 UTC15m
2026-07-16 ZKHUP - Jul 16, 11:25 UTCJul 16, 11:54 UTC30m
2026-07-16 ZKHUP - Jul 16, 10:35 UTCJul 16, 10:59 UTC25m
2026-07-16 ZKHUP - Jul 16, 07:30 UTCJul 16, 07:50 UTC20m
2026-07-16 ZKHUP - Jul 16, 07:05 UTCJul 16, 07:25 UTC20m
2026-07-16 ZKHUP - Jul 16, 06:35 UTCJul 16, 07:00 UTC25m
2026-07-12 ZKHUP - Jul 12, 11:40 UTCJul 12, 12:15 UTC35m
2026-07-12 ZKHUP - Jul 12, 11:01 UTCJul 12, 11:20 UTC20m
2026-07-11 ZKHUP - Jul 11, 04:55 UTCJul 11, 05:31 UTC35m
2026-07-11 ZKHUP - Jul 11, 04:25 UTCJul 11, 04:40 UTC15m
2026-06-30 ZKHUP - Jun 30, 07:45 UTCJun 30, 08:10 UTC25m
2026-06-30 ZKHUP - Jun 30, 07:10 UTCJun 30, 07:25 UTC15m
2026-06-28 ZKHUP - Jun 28, 03:45 UTCJun 28, 03:55 UTC10m
2026-06-28 ZKHUP - Jun 28, 02:29 UTCJun 28, 02:34 UTC5m
2026-06-27 ZKHUP - Jun 27, 01:59 UTCJun 27, 02:04 UTC5m
2026-06-23 ZKHUP - Jun 23, 09:14 UTCJun 23, 09:45 UTC30m
2026-06-23 ZKHUP - Jun 23, 08:45 UTCJun 23, 09:09 UTC25m
2026-06-23 ZKHUP - Jun 23, 08:15 UTCJun 23, 08:35 UTC20m
2026-06-22 ZKHUP - Jun 22, 23:24 UTCJun 22, 23:35 UTC10m
2026-06-22 ZKHUP - Jun 22, 04:04 UTCJun 22, 04:24 UTC20m
2026-06-22 ZKHUP - Jun 22, 03:40 UTCJun 22, 04:00 UTC20m
2026-06-22 ZKHUP - Jun 22, 03:14 UTCJun 22, 03:35 UTC20m
2026-06-21 ZKHUP - Jun 21, 21:10 UTCJun 21, 21:29 UTC20m
2026-06-21 ZKHUP - Jun 21, 20:24 UTCJun 21, 20:45 UTC20m
2026-06-21 ZKHUP - Jun 21, 03:44 UTCJun 21, 04:14 UTC30m
2026-06-21 ZKHUP - Jun 21, 03:05 UTCJun 21, 03:14 UTC10m
2026-06-21 ZKHUP - Jun 21, 00:45 UTCJun 21, 01:05 UTC20m
2026-06-21 ZKHUP - Jun 21, 00:19 UTCJun 21, 00:40 UTC20m
2026-06-21 ZKHUP - Jun 21, 00:04 UTCJun 21, 00:14 UTC10m
2026-06-19 ZKHUP - Jun 19, 23:19 UTCJun 19, 23:29 UTC10m
2026-06-19 ZKHUP - Jun 19, 18:25 UTCJun 19, 18:44 UTC20m
2026-06-19 ZKHUP - Jun 19, 17:39 UTCJun 19, 18:14 UTC35m
2026-06-19 ZKHUP - Jun 19, 06:54 UTCJun 19, 07:59 UTC1h 5m
2026-06-19 ZKHUP - Jun 19, 05:54 UTCJun 19, 06:10 UTC15m
2026-06-17 ZKHUP - Jun 17, 01:30 UTCJun 17, 01:45 UTC15m
2026-06-16 ZKHUP - Jun 16, 23:55 UTCJun 17, 00:00 UTC5m
2026-05-30 ZKHUP - May 30, 02:55 UTCMay 30, 03:05 UTC10m
2026-05-24 ZKHUP - May 24, 08:40 UTCMay 24, 09:00 UTC20m
2026-05-24 ZKHUP - May 24, 08:10 UTCMay 24, 08:20 UTC10m
2026-05-23 ZKHUP - May 23, 09:00 UTCMay 23, 09:15 UTC15m

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

Mode-S C813B6 frequently asked

What is Mode-S code C813B6?
C813B6 is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-HUP.
Where is Mode-S C813B6 registered?
Mode-S code C813B6 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 C813B6 broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 23:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C813B6, octal 62011666, decimal 13,112,246.
What flights does C813B6 operate?
Mode-S C813B6 has broadcast 1 distinct callsign, including ZKHUP.