Apparatus

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sensors Mode-S transponder

C820AE

ICAO 24-bit transponder address · allocated to New Zealand

Currently assigned to ZK-WPN · BEECH 200 Super King Air

Hex
C820AE
Octal
62020256
Decimal
13,115,566
Country
NZ
Tail
ZK-WPN
Type
BE20
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
304
Distinct callsigns
1
Country
NZ
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S C820AE.

Country allocation

The ICAO 24-bit address C820AE 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
SKL4 - 304 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKL4 NPL → NPE Jul 26, 20:45 UTCJul 26, 21:25 UTC40m
2026-07-26 SKL4 - Jul 26, 06:10 UTCJul 26, 06:40 UTC31m
2026-07-26 SKL4 NPL → HLZ Jul 26, 04:25 UTCJul 26, 04:50 UTC25m
2026-07-25 SKL4 - Jul 25, 06:10 UTCJul 25, 06:20 UTC10m
2026-07-25 SKL4 - Jul 25, 04:25 UTCJul 25, 05:10 UTC45m
2026-07-25 SKL4 - Jul 25, 01:40 UTCJul 25, 01:55 UTC15m
2026-07-25 SKL4 - Jul 25, 00:20 UTCJul 25, 00:35 UTC15m
2026-07-24 SKL4 - Jul 24, 04:40 UTCJul 24, 05:20 UTC40m
2026-07-24 SKL4 - Jul 24, 02:25 UTCJul 24, 02:45 UTC20m
2026-07-24 SKL4 - Jul 24, 00:40 UTCJul 24, 00:55 UTC15m
2026-07-23 SKL4 - Jul 23, 04:00 UTCJul 23, 04:10 UTC10m
2026-07-23 SKL4 - Jul 23, 01:50 UTCJul 23, 02:00 UTC10m
2026-07-22 SKL4 - Jul 22, 04:35 UTCJul 22, 04:55 UTC20m
2026-07-22 SKL4 - Jul 22, 03:15 UTCJul 22, 03:30 UTC15m
2026-07-22 SKL4 - Jul 22, 00:50 UTCJul 22, 01:00 UTC10m
2026-07-21 SKL4 - Jul 21, 10:50 UTCJul 21, 11:00 UTC10m
2026-07-21 SKL4 - Jul 21, 08:30 UTCJul 21, 08:40 UTC10m
2026-07-21 SKL4 - Jul 21, 06:35 UTCJul 21, 07:05 UTC30m
2026-07-21 SKL4 - Jul 21, 05:25 UTCJul 21, 05:50 UTC25m
2026-07-21 SKL4 - Jul 21, 03:00 UTCJul 21, 03:10 UTC10m
2026-07-20 SKL4 - Jul 20, 07:40 UTCJul 20, 07:50 UTC10m
2026-07-20 SKL4 - Jul 20, 05:20 UTCJul 20, 05:30 UTC10m
2026-07-20 SKL4 - Jul 20, 02:15 UTCJul 20, 02:45 UTC30m
2026-07-19 SKL4 NPL → HLZ Jul 19, 23:45 UTCJul 20, 00:15 UTC30m
2026-07-19 SKL4 - Jul 19, 10:20 UTCJul 19, 10:45 UTC25m
2026-07-19 SKL4 - Jul 19, 08:15 UTCJul 19, 08:35 UTC20m
2026-07-19 SKL4 - Jul 19, 06:10 UTCJul 19, 06:40 UTC30m
2026-07-19 SKL4 NPL → HLZ Jul 19, 03:40 UTCJul 19, 04:05 UTC25m
2026-07-19 SKL4 - Jul 19, 02:30 UTCJul 19, 03:05 UTC35m
2026-07-18 SKL4 - Jul 18, 22:45 UTCJul 18, 23:20 UTC35m
2026-07-18 SKL4 HLZ → NPL Jul 18, 09:40 UTCJul 18, 10:10 UTC30m
2026-07-18 SKL4 - Jul 18, 06:45 UTCJul 18, 07:05 UTC20m
2026-07-18 SKL4 - Jul 18, 02:19 UTCJul 18, 02:55 UTC36m
2026-07-18 SKL4 - Jul 18, 00:35 UTCJul 18, 01:05 UTC30m
2026-07-17 SKL4 - Jul 17, 07:20 UTCJul 17, 08:00 UTC40m
2026-07-17 SKL4 - Jul 17, 05:10 UTCJul 17, 05:45 UTC35m
2026-07-17 SKL4 - Jul 17, 03:10 UTCJul 17, 03:45 UTC35m
2026-07-17 SKL4 - Jul 17, 00:20 UTCJul 17, 00:40 UTC20m
2026-07-16 SKL4 NPL → HLZ Jul 16, 22:30 UTCJul 16, 22:59 UTC30m
2026-07-14 SKL4 - Jul 14, 01:10 UTCJul 14, 01:45 UTC35m
2026-07-13 SKL4 - Jul 13, 22:15 UTCJul 13, 22:50 UTC35m
2026-07-13 SKL4 - Jul 13, 05:25 UTCJul 13, 05:55 UTC30m
2026-07-13 SKL4 - Jul 13, 02:40 UTCJul 13, 03:01 UTC20m
2026-07-13 SKL4 - Jul 13, 00:25 UTCJul 13, 01:05 UTC40m
2026-07-12 SKL4 - Jul 12, 22:20 UTCJul 12, 22:50 UTC30m
2026-07-12 SKL4 - Jul 12, 02:30 UTCJul 12, 03:05 UTC35m
2026-07-12 SKL4 - Jul 12, 00:05 UTCJul 12, 00:35 UTC30m
2026-07-11 SKL4 WLG → NPL Jul 11, 07:30 UTCJul 11, 08:15 UTC45m
2026-07-11 SKL4 - Jul 11, 05:25 UTCJul 11, 06:15 UTC50m
2026-07-11 SKL4 - Jul 11, 03:10 UTCJul 11, 03:20 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.

Prefer a tail-number view? See the ZK-WPN page for operator, model, and routing details .

Mode-S C820AE frequently asked

What is Mode-S code C820AE?
C820AE is an ICAO 24-bit transponder address. Allocated to New Zealand. Assigned to ZK-WPN.
Where is Mode-S C820AE registered?
Mode-S code C820AE 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 C820AE broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C820AE, octal 62020256, decimal 13,115,566.
What flights does C820AE operate?
Mode-S C820AE has broadcast 1 distinct callsign, including SKL4.