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 14h ago
Flights observed
105
Distinct callsigns
1
Country
AU
Last broadcast
14h 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 - 105 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 YHT - Jun 2, 05:40 UTCJun 2, 06:15 UTC35m
2026-06-02 YHT JAD → JAD Jun 2, 04:45 UTCJun 2, 05:20 UTC35m
2026-06-02 YHT JAD → JAD Jun 2, 03:25 UTCJun 2, 04:15 UTC50m
2026-06-02 YHT JAD → JAD Jun 2, 02:20 UTCJun 2, 03:00 UTC40m
2026-06-01 YHT JAD → JAD Jun 1, 06:15 UTCJun 1, 06:50 UTC35m
2026-05-29 YHT JAD → JAD May 29, 05:10 UTCMay 29, 06:45 UTC1h 35m
2026-05-28 YHT JAD → JAD May 28, 10:20 UTCMay 28, 12:00 UTC1h 40m
2026-05-28 YHT JAD → JAD May 28, 07:15 UTCMay 28, 08:15 UTC1h 0m
2026-05-28 YHT JAD → JAD May 28, 05:10 UTCMay 28, 06:15 UTC1h 5m
2026-05-27 YHT JAD → JAD May 27, 06:55 UTCMay 27, 07:35 UTC40m
2026-05-25 YHT JAD → JAD May 25, 03:10 UTCMay 25, 03:50 UTC40m
2026-05-23 YHT JAD → JAD May 23, 01:50 UTCMay 23, 03:15 UTC1h 25m
2026-05-22 YHT JAD → JAD May 22, 09:55 UTCMay 22, 10:40 UTC45m
2026-05-22 YHT JAD → JAD May 22, 04:55 UTCMay 22, 05:45 UTC50m
2026-05-22 YHT JAD → JAD May 22, 02:25 UTCMay 22, 03:05 UTC40m
2026-05-21 YHT JAD → JAD May 21, 06:15 UTCMay 21, 06:40 UTC25m
2026-05-20 YHT JAD → JAD May 20, 10:10 UTCMay 20, 12:05 UTC1h 55m
2026-05-20 YHT - May 20, 07:10 UTCMay 20, 08:00 UTC50m
2026-05-20 YHT - May 20, 05:25 UTCMay 20, 06:05 UTC40m
2026-05-20 YHT - May 20, 02:05 UTCMay 20, 02:40 UTC35m
2026-05-20 YHT - May 20, 00:40 UTCMay 20, 01:20 UTC40m
2026-05-19 YHT JAD → JAD May 19, 11:25 UTCMay 19, 13:25 UTC2h 0m
2026-05-19 YHT JAD → JAD May 19, 07:20 UTCMay 19, 09:00 UTC1h 40m
2026-05-19 YHT - May 19, 03:10 UTCMay 19, 04:20 UTC1h 10m
2026-05-19 YHT - May 19, 02:05 UTCMay 19, 02:40 UTC35m
2026-05-18 YHT JAD → JAD May 18, 12:45 UTCMay 18, 13:35 UTC50m
2026-05-18 YHT JAD → JAD May 18, 12:20 UTCMay 18, 12:35 UTC15m
2026-05-18 YHT JAD → JAD May 18, 11:15 UTCMay 18, 12:05 UTC50m
2026-05-18 YHT JAD → JAD May 18, 10:45 UTCMay 18, 11:05 UTC20m
2026-05-17 YHT - May 17, 07:30 UTCMay 17, 08:00 UTC30m
2026-05-17 YHT - May 17, 06:25 UTCMay 17, 06:55 UTC30m
2026-05-17 YHT JAD → JAD May 17, 05:25 UTCMay 17, 05:55 UTC30m
2026-05-17 YHT - May 17, 03:15 UTCMay 17, 03:45 UTC30m
2026-05-17 YHT - May 17, 02:25 UTCMay 17, 02:50 UTC25m
2026-05-17 YHT - May 17, 01:30 UTCMay 17, 02:00 UTC30m
2026-05-17 YHT JAD → JAD May 17, 00:25 UTCMay 17, 01:00 UTC35m
2026-05-16 YHT - May 16, 07:05 UTCMay 16, 07:31 UTC25m
2026-05-16 YHT JAD → JAD May 16, 06:10 UTCMay 16, 06:41 UTC30m
2026-05-16 YHT JAD → JAD May 16, 05:20 UTCMay 16, 05:46 UTC26m
2026-05-16 YHT JAD → JAD May 16, 03:15 UTCMay 16, 03:50 UTC35m
2026-05-16 YHT - May 16, 02:15 UTCMay 16, 02:50 UTC35m
2026-05-16 YHT - May 16, 01:10 UTCMay 16, 01:45 UTC35m
2026-05-16 YHT JAD → JAD May 16, 00:15 UTCMay 16, 00:45 UTC30m
2026-05-15 YHT JAD → JAD May 15, 07:00 UTCMay 15, 07:30 UTC30m
2026-05-15 YHT JAD → JAD May 15, 04:15 UTCMay 15, 04:25 UTC10m
2026-05-15 YHT - May 15, 02:55 UTCMay 15, 03:55 UTC1h 0m
2026-05-15 YHT - May 15, 02:40 UTCMay 15, 02:50 UTC10m
2026-05-13 YHT JAD → JAD May 13, 08:10 UTCMay 13, 08:20 UTC10m
2026-05-13 YHT JAD → JAD May 13, 05:25 UTCMay 13, 06:10 UTC45m
2026-05-13 YHT JAD → JAD May 13, 02:00 UTCMay 13, 02:50 UTC50m

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 14h 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.