Apparatus

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sensors Mode-S transponder

7C3C75

ICAO 24-bit transponder address · allocated to Australia

Hex
7C3C75
Octal
37036165
Decimal
8,141,941
Country
AU
No current signal · last broadcast 1d ago
Flights observed
164
Distinct callsigns
1
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C3C75.

Country allocation

The ICAO 24-bit address 7C3C75 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
L77 - 164 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 L77 JAD → JAD Jul 16, 02:40 UTCJul 16, 03:30 UTC50m
2026-07-14 L77 JAD → JAD Jul 14, 23:20 UTCJul 15, 00:10 UTC50m
2026-07-14 L77 JAD → JAD Jul 14, 07:05 UTCJul 14, 08:10 UTC1h 5m
2026-07-14 L77 JAD → JAD Jul 14, 04:45 UTCJul 14, 06:25 UTC1h 40m
2026-07-14 L77 JAD → JAD Jul 14, 02:30 UTCJul 14, 03:35 UTC1h 5m
2026-07-13 L77 JAD → JAD Jul 13, 23:55 UTCJul 14, 01:00 UTC1h 5m
2026-07-13 L77 - Jul 13, 05:50 UTCJul 13, 06:40 UTC50m
2026-07-13 L77 - Jul 13, 04:35 UTCJul 13, 05:15 UTC40m
2026-07-13 L77 JAD → JAD Jul 13, 02:20 UTCJul 13, 03:30 UTC1h 10m
2026-07-13 L77 JAD → JAD Jul 13, 00:05 UTCJul 13, 01:10 UTC1h 5m
2026-07-12 L77 JAD → JAD Jul 12, 05:10 UTCJul 12, 05:50 UTC40m
2026-07-11 L77 JAD → JAD Jul 11, 00:25 UTCJul 11, 01:05 UTC40m
2026-07-09 L77 - Jul 9, 06:25 UTCJul 9, 07:10 UTC45m
2026-07-09 L77 - Jul 9, 03:15 UTCJul 9, 05:00 UTC1h 45m
2026-07-08 L77 JAD → JAD Jul 8, 05:00 UTCJul 8, 06:05 UTC1h 5m
2026-07-08 L77 JAD → JAD Jul 8, 02:55 UTCJul 8, 03:35 UTC40m
2026-07-07 L77 JAD → JAD Jul 7, 07:05 UTCJul 7, 07:20 UTC15m
2026-07-06 L77 JAD → JAD Jul 6, 23:20 UTCJul 6, 23:30 UTC10m
2026-07-06 L77 JAD → JAD Jul 6, 07:35 UTCJul 6, 08:05 UTC30m
2026-07-04 L77 JAD → JAD Jul 4, 02:15 UTCJul 4, 03:50 UTC1h 35m
2026-07-04 L77 JAD → JAD Jul 4, 00:35 UTCJul 4, 01:35 UTC1h 0m
2026-07-03 L77 JAD → JAD Jul 3, 05:55 UTCJul 3, 06:55 UTC1h 0m
2026-07-03 L77 JAD → JAD Jul 3, 00:20 UTCJul 3, 01:50 UTC1h 30m
2026-07-02 L77 JAD → JAD Jul 2, 07:25 UTCJul 2, 08:35 UTC1h 10m
2026-07-02 L77 JAD → JAD Jul 2, 05:10 UTCJul 2, 06:20 UTC1h 10m
2026-07-02 L77 JAD → JAD Jul 2, 02:45 UTCJul 2, 03:55 UTC1h 10m
2026-07-02 L77 JAD → JAD Jul 2, 00:25 UTCJul 2, 01:45 UTC1h 20m
2026-07-01 L77 JAD → JAD Jul 1, 02:35 UTCJul 1, 03:35 UTC1h 0m
2026-07-01 L77 JAD → JAD Jul 1, 00:15 UTCJul 1, 01:35 UTC1h 20m
2026-06-29 L77 JAD → JAD Jun 29, 02:35 UTCJun 29, 05:40 UTC3h 5m
2026-06-29 L77 JAD → JAD Jun 29, 00:24 UTCJun 29, 01:34 UTC1h 10m
2026-06-25 L77 JAD → JAD Jun 25, 07:09 UTCJun 25, 08:04 UTC55m
2026-06-25 L77 JAD → JAD Jun 25, 04:54 UTCJun 25, 06:05 UTC1h 10m
2026-06-25 L77 JAD → JAD Jun 25, 02:14 UTCJun 25, 03:20 UTC1h 5m
2026-06-24 L77 JAD → JAD Jun 24, 05:05 UTCJun 24, 06:39 UTC1h 35m
2026-06-24 L77 JAD → JAD Jun 24, 02:09 UTCJun 24, 03:19 UTC1h 10m
2026-06-24 L77 JAD → JAD Jun 24, 00:30 UTCJun 24, 01:30 UTC1h 0m
2026-06-23 L77 JAD → JAD Jun 23, 05:09 UTCJun 23, 06:24 UTC1h 15m
2026-06-23 L77 JAD → JAD Jun 23, 02:20 UTCJun 23, 04:00 UTC1h 40m
2026-06-22 L77 JAD → JAD Jun 22, 23:45 UTCJun 23, 01:00 UTC1h 15m
2026-06-22 L77 JAD → JAD Jun 22, 02:54 UTCJun 22, 04:04 UTC1h 10m
2026-06-21 L77 JAD → JAD Jun 21, 07:29 UTCJun 21, 08:04 UTC35m
2026-06-21 L77 JAD → JAD Jun 21, 04:14 UTCJun 21, 05:44 UTC1h 30m
2026-06-20 L77 JAD → JAD Jun 20, 05:09 UTCJun 20, 07:04 UTC1h 55m
2026-06-18 L77 JAD → JAD Jun 18, 05:25 UTCJun 18, 07:10 UTC1h 45m
2026-06-18 L77 JAD → JAD Jun 18, 02:10 UTCJun 18, 03:25 UTC1h 15m
2026-06-18 L77 JAD → JAD Jun 18, 00:10 UTCJun 18, 01:30 UTC1h 20m
2026-06-17 L77 JAD → JAD Jun 17, 07:45 UTCJun 17, 09:10 UTC1h 25m
2026-06-17 L77 JAD → JAD Jun 17, 02:50 UTCJun 17, 04:05 UTC1h 15m
2026-06-16 L77 JAD → JAD Jun 16, 02:09 UTCJun 16, 03:25 UTC1h 15m

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.

Mode-S 7C3C75 frequently asked

What is Mode-S code 7C3C75?
7C3C75 is an ICAO 24-bit transponder address. Allocated to Australia.
Where is Mode-S 7C3C75 registered?
Mode-S code 7C3C75 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C3C75 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C3C75, octal 37036165, decimal 8,141,941.
What flights does 7C3C75 operate?
Mode-S 7C3C75 has broadcast 1 distinct callsign, including L77.