Apparatus

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sensors Mode-S transponder

7C7A8F

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-YHT · CESSNA 172 Skyhawk · operated by AIRFLITE PTY LTD

Hex
7C7A8F
Octal
37075217
Decimal
8,157,839
Country
AU
Tail
VH-YHT
Type
C172
No current signal · last broadcast 2d ago
Flights observed
196
Distinct callsigns
1
Country
AU
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 7C7A8F.

Country allocation

The ICAO 24-bit address 7C7A8F 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
YHT - 196 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 YHT JAD → JAD Jul 16, 00:35 UTCJul 16, 01:15 UTC40m
2026-07-15 YHT - Jul 15, 11:35 UTCJul 15, 12:40 UTC1h 5m
2026-07-15 YHT - Jul 15, 10:10 UTCJul 15, 10:50 UTC40m
2026-07-15 YHT JAD → JAD Jul 15, 07:00 UTCJul 15, 07:45 UTC45m
2026-07-15 YHT JAD → JAD Jul 15, 03:15 UTCJul 15, 04:25 UTC1h 10m
2026-07-15 YHT JAD → JAD Jul 15, 01:05 UTCJul 15, 01:50 UTC45m
2026-07-14 YHT JAD → JAD Jul 14, 11:15 UTCJul 14, 11:55 UTC40m
2026-07-14 YHT JAD → JAD Jul 14, 09:50 UTCJul 14, 10:35 UTC45m
2026-07-14 YHT - Jul 14, 08:20 UTCJul 14, 08:50 UTC30m
2026-07-14 YHT - Jul 14, 05:30 UTCJul 14, 06:30 UTC1h 0m
2026-07-13 YHT - Jul 13, 10:30 UTCJul 13, 11:10 UTC40m
2026-07-13 YHT JAD → JAD Jul 13, 09:55 UTCJul 13, 10:20 UTC25m
2026-07-13 YHT JAD → JAD Jul 13, 06:20 UTCJul 13, 07:01 UTC40m
2026-07-13 YHT JAD → JAD Jul 13, 05:15 UTCJul 13, 06:01 UTC45m
2026-07-13 YHT - Jul 13, 00:55 UTCJul 13, 01:30 UTC35m
2026-07-13 YHT JAD → JAD Jul 13, 00:05 UTCJul 13, 00:40 UTC35m
2026-07-12 YHT JAD → JAD Jul 12, 02:05 UTCJul 12, 03:30 UTC1h 25m
2026-07-08 YHT - Jul 8, 07:20 UTCJul 8, 07:55 UTC35m
2026-07-08 YHT - Jul 8, 06:30 UTCJul 8, 06:45 UTC15m
2026-07-08 YHT - Jul 8, 05:20 UTCJul 8, 05:50 UTC30m
2026-07-08 YHT JAD → JAD Jul 8, 03:15 UTCJul 8, 03:35 UTC20m
2026-07-08 YHT JAD → JAD Jul 8, 02:40 UTCJul 8, 03:00 UTC20m
2026-07-07 YHT - Jul 7, 08:40 UTCJul 7, 09:55 UTC1h 15m
2026-07-07 YHT JAD → JAD Jul 7, 07:15 UTCJul 7, 07:50 UTC35m
2026-07-07 YHT JAD → JAD Jul 7, 06:30 UTCJul 7, 06:55 UTC25m
2026-07-07 YHT JAD → JAD Jul 7, 04:20 UTCJul 7, 05:05 UTC45m
2026-07-07 YHT - Jul 7, 02:45 UTCJul 7, 03:10 UTC25m
2026-07-07 YHT JAD → JAD Jul 7, 02:05 UTCJul 7, 02:30 UTC25m
2026-07-06 YHT JAD → JAD Jul 6, 03:40 UTCJul 6, 04:20 UTC40m
2026-07-03 YHT - Jul 3, 06:10 UTCJul 3, 06:25 UTC15m
2026-07-02 YHT - Jul 2, 08:20 UTCJul 2, 08:50 UTC30m
2026-07-02 YHT - Jul 2, 06:30 UTCJul 2, 06:55 UTC25m
2026-07-02 YHT JAD → JAD Jul 2, 03:35 UTCJul 2, 04:40 UTC1h 5m
2026-07-01 YHT JAD → JAD Jul 1, 05:35 UTCJul 1, 06:20 UTC45m
2026-07-01 YHT JAD → JAD Jul 1, 03:30 UTCJul 1, 04:05 UTC35m
2026-07-01 YHT JAD → JAD Jul 1, 02:45 UTCJul 1, 03:15 UTC30m
2026-06-29 YHT JAD → JAD Jun 29, 02:50 UTCJun 29, 03:29 UTC40m
2026-06-25 YHT - Jun 25, 08:04 UTCJun 25, 08:45 UTC40m
2026-06-25 YHT - Jun 25, 06:30 UTCJun 25, 07:09 UTC40m
2026-06-24 YHT JAD → JAD Jun 24, 23:50 UTCJun 25, 00:35 UTC45m
2026-06-24 YHT JAD → JAD Jun 24, 10:14 UTCJun 24, 12:14 UTC2h 0m
2026-06-24 YHT - Jun 24, 08:39 UTCJun 24, 08:49 UTC10m
2026-06-24 YHT JAD → JAD Jun 24, 07:54 UTCJun 24, 08:09 UTC15m
2026-06-24 YHT - Jun 24, 06:29 UTCJun 24, 06:50 UTC20m
2026-06-24 YHT - Jun 24, 04:34 UTCJun 24, 05:05 UTC30m
2026-06-23 YHT - Jun 23, 01:54 UTCJun 23, 02:40 UTC45m
2026-06-23 YHT JAD → JAD Jun 23, 00:35 UTCJun 23, 01:15 UTC40m
2026-06-22 YHT JAD → JAD Jun 22, 03:50 UTCJun 22, 04:54 UTC1h 5m
2026-06-22 YHT - Jun 22, 01:19 UTCJun 22, 01:35 UTC15m
2026-06-22 YHT JAD → JAD Jun 22, 00:44 UTCJun 22, 01:00 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 VH-YHT page for operator, model, and routing details .

Mode-S 7C7A8F frequently asked

What is Mode-S code 7C7A8F?
7C7A8F is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YHT.
Where is Mode-S 7C7A8F registered?
Mode-S code 7C7A8F is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7A8F broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7A8F, octal 37075217, decimal 8,157,839.
What flights does 7C7A8F operate?
Mode-S 7C7A8F has broadcast 1 distinct callsign, including YHT.