Apparatus

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sensors Mode-S transponder

7C3631

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-KZN · PIPER PA-44 Seminole · operated by AIRFLITE PTY LTD

Hex
7C3631
Octal
37033061
Decimal
8,140,337
Country
AU
Tail
VH-KZN
Type
PA44
No current signal · last broadcast 6h ago
Flights observed
239
Distinct callsigns
1
Country
AU
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 7C3631.

Country allocation

The ICAO 24-bit address 7C3631 falls within the block assigned to Australia (AU) by ICAO Annex 10, Volume III. Every aircraft registered in Australia 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
KZN - 239 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KZN - Jul 14, 00:00 UTCJul 14, 00:30 UTC30m
2026-07-13 KZN - Jul 13, 21:50 UTCJul 13, 23:25 UTC1h 35m
2026-07-13 KZN TMW → TMW Jul 13, 05:01 UTCJul 13, 06:10 UTC1h 10m
2026-07-13 KZN TMW → TMW Jul 13, 02:45 UTCJul 13, 04:00 UTC1h 15m
2026-07-12 KZN - Jul 12, 23:50 UTCJul 13, 00:35 UTC45m
2026-07-12 KZN - Jul 12, 22:05 UTCJul 12, 22:20 UTC15m
2026-07-12 KZN TMW → TMW Jul 12, 05:25 UTCJul 12, 06:55 UTC1h 30m
2026-07-11 KZN TMW → TMW Jul 11, 22:45 UTCJul 11, 23:40 UTC55m
2026-07-10 KZN TMW → TMW Jul 10, 00:45 UTCJul 10, 01:35 UTC50m
2026-07-09 KZN TMW → TMW Jul 9, 23:20 UTCJul 10, 00:05 UTC45m
2026-07-09 KZN TMW → TMW Jul 9, 21:40 UTCJul 9, 22:20 UTC40m
2026-07-09 KZN TMW → TMW Jul 9, 04:50 UTCJul 9, 06:10 UTC1h 20m
2026-07-09 KZN TMW → TMW Jul 9, 02:40 UTCJul 9, 03:45 UTC1h 5m
2026-07-08 KZN - Jul 8, 23:30 UTCJul 9, 00:50 UTC1h 20m
2026-07-08 KZN - Jul 8, 21:45 UTCJul 8, 22:10 UTC25m
2026-07-08 KZN TMW → TMW Jul 8, 04:45 UTCJul 8, 05:45 UTC1h 0m
2026-07-08 KZN TMW → TMW Jul 8, 03:00 UTCJul 8, 03:45 UTC45m
2026-07-08 KZN TMW → TMW Jul 8, 01:00 UTCJul 8, 02:00 UTC1h 0m
2026-07-07 KZN TMW → TMW Jul 7, 06:25 UTCJul 7, 07:20 UTC55m
2026-07-07 KZN TMW → TMW Jul 7, 04:50 UTCJul 7, 05:15 UTC25m
2026-07-07 KZN - Jul 7, 02:50 UTCJul 7, 03:40 UTC50m
2026-07-07 KZN TMW → TMW Jul 7, 01:15 UTCJul 7, 02:05 UTC50m
2026-07-06 KZN - Jul 6, 23:30 UTCJul 7, 00:25 UTC55m
2026-07-06 KZN - Jul 6, 21:55 UTCJul 6, 22:45 UTC50m
2026-07-06 KZN TMW → TMW Jul 6, 05:30 UTCJul 6, 07:10 UTC1h 40m
2026-07-06 KZN TMW → TMW Jul 6, 03:30 UTCJul 6, 04:30 UTC1h 0m
2026-07-06 KZN TMW → TMW Jul 6, 01:20 UTCJul 6, 02:30 UTC1h 10m
2026-07-05 KZN TMW → TMW Jul 5, 22:05 UTCJul 6, 00:25 UTC2h 20m
2026-07-05 KZN TMW → TMW Jul 5, 00:30 UTCJul 5, 01:25 UTC55m
2026-07-04 KZN TMW → TMW Jul 4, 23:00 UTCJul 5, 00:15 UTC1h 15m
2026-07-02 KZN - Jul 2, 06:15 UTCJul 2, 06:35 UTC20m
2026-07-02 KZN - Jul 2, 04:00 UTCJul 2, 04:30 UTC30m
2026-07-02 KZN TMW → TMW Jul 2, 00:30 UTCJul 2, 00:35 UTC5m
2026-07-01 KZN TMW → TMW Jul 1, 01:15 UTCJul 1, 02:25 UTC1h 10m
2026-06-30 KZN - Jun 30, 04:15 UTCJun 30, 05:25 UTC1h 10m
2026-06-30 KZN - Jun 30, 02:15 UTCJun 30, 02:35 UTC20m
2026-06-29 KZN TMW → TMW Jun 29, 21:44 UTCJun 29, 23:25 UTC1h 40m
2026-06-29 KZN - Jun 29, 02:00 UTCJun 29, 02:39 UTC40m
2026-06-29 KZN - Jun 29, 00:34 UTCJun 29, 01:05 UTC30m
2026-06-26 KZN - Jun 26, 06:54 UTCJun 26, 07:30 UTC35m
2026-06-26 KZN - Jun 26, 05:44 UTCJun 26, 06:09 UTC25m
2026-06-26 KZN - Jun 26, 02:40 UTCJun 26, 04:10 UTC1h 30m
2026-06-26 KZN - Jun 26, 00:05 UTCJun 26, 00:45 UTC40m
2026-06-25 KZN - Jun 25, 21:50 UTCJun 25, 22:45 UTC55m
2026-06-25 KZN - Jun 25, 08:30 UTCJun 25, 09:14 UTC45m
2026-06-25 KZN - Jun 25, 06:25 UTCJun 25, 07:45 UTC1h 20m
2026-06-25 KZN - Jun 25, 03:54 UTCJun 25, 04:29 UTC35m
2026-06-25 KZN - Jun 25, 01:35 UTCJun 25, 02:39 UTC1h 5m
2026-06-24 KZN TMW → TMW Jun 24, 21:54 UTCJun 24, 23:59 UTC2h 5m
2026-06-24 KZN - Jun 24, 11:05 UTCJun 24, 11:50 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 VH-KZN page for operator, model, and routing details .

Mode-S 7C3631 frequently asked

What is Mode-S code 7C3631?
7C3631 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-KZN.
Where is Mode-S 7C3631 registered?
Mode-S code 7C3631 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C3631 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C3631, octal 37033061, decimal 8,140,337.
What flights does 7C3631 operate?
Mode-S 7C3631 has broadcast 1 distinct callsign, including KZN.