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sensors Mode-S transponder

7C1A05

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-FFB · AIR TRACTOR AT-802 · operated by CENTRAL HIGHLANDS AERIAL SERVICES PTY. LTD.

Hex
7C1A05
Octal
37015005
Decimal
8,133,125
Country
AU
Tail
VH-FFB
Type
AT8T
No current signal · last broadcast 24d ago
Flights observed
32
Distinct callsigns
2
Country
AU
Last broadcast
24d ago

Last known position

Most recent position reported by Mode-S 7C1A05.

Country allocation

The ICAO 24-bit address 7C1A05 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 2 distinct

Callsign Airline Flights Last seen
FOREST3 - 19 2026-07-26
VHFFB - 13 2026-07-10

Recent flights last 32

DateFlightRouteTakeoffLandingDuration
2026-07-26 FOREST3 - Jul 26, 13:05 UTCJul 26, 14:10 UTC1h 5m
2026-07-25 FOREST3 - Jul 25, 13:50 UTCJul 25, 15:20 UTC1h 30m
2026-07-23 FOREST3 - Jul 23, 13:05 UTCJul 23, 15:00 UTC1h 55m
2026-07-20 FOREST3 - Jul 20, 13:10 UTCJul 20, 15:00 UTC1h 50m
2026-07-17 FOREST3 - Jul 17, 13:10 UTCJul 17, 14:55 UTC1h 45m
2026-07-15 FOREST3 - Jul 15, 14:25 UTCJul 15, 14:40 UTC15m
2026-07-12 FOREST3 - Jul 12, 12:45 UTCJul 12, 13:30 UTC45m
2026-07-12 FOREST3 - Jul 12, 08:10 UTCJul 12, 08:30 UTC20m
2026-07-12 FOREST3 - Jul 12, 06:15 UTCJul 12, 07:31 UTC1h 15m
2026-07-11 FOREST3 - Jul 11, 08:15 UTCJul 11, 09:25 UTC1h 10m
2026-07-11 FOREST3 - Jul 11, 05:01 UTCJul 11, 06:55 UTC1h 55m
2026-07-10 VHFFB - Jul 10, 12:40 UTCJul 10, 14:00 UTC1h 20m
2026-07-10 VHFFB PGF → PGF Jul 10, 12:05 UTCJul 10, 12:35 UTC30m
2026-07-10 VHFFB PGF → PGF Jul 10, 11:35 UTCJul 10, 11:55 UTC20m
2026-07-10 VHFFB PGF → PGF Jul 10, 08:40 UTCJul 10, 10:20 UTC1h 40m
2026-07-09 VHFFB - Jul 9, 18:40 UTCJul 9, 18:50 UTC10m
2026-07-09 VHFFB - Jul 9, 16:15 UTCJul 9, 17:00 UTC45m
2026-07-09 VHFFB - Jul 9, 15:35 UTCJul 9, 15:45 UTC10m
2026-07-09 VHFFB PGF → PGF Jul 9, 09:25 UTCJul 9, 10:00 UTC35m
2026-07-08 VHFFB - Jul 8, 10:30 UTCJul 8, 11:40 UTC1h 10m
2026-07-08 VHFFB - Jul 8, 08:55 UTCJul 8, 09:55 UTC1h 0m
2026-07-07 VHFFB PGF → PGF Jul 7, 16:40 UTCJul 7, 17:05 UTC25m
2026-07-07 VHFFB - Jul 7, 12:10 UTCJul 7, 15:20 UTC3h 10m
2026-07-07 VHFFB AHO → PGF Jul 7, 06:45 UTCJul 7, 08:30 UTC1h 45m
2026-07-06 FOREST3 - Jul 6, 12:55 UTCJul 6, 15:25 UTC2h 30m
2026-07-06 FOREST3 - Jul 6, 10:45 UTCJul 6, 11:20 UTC35m
2026-07-06 FOREST3 - Jul 6, 08:35 UTCJul 6, 08:50 UTC15m
2026-07-06 FOREST3 - Jul 6, 04:00 UTCJul 6, 05:00 UTC1h 0m
2026-07-05 FOREST3 - Jul 5, 09:10 UTCJul 5, 10:50 UTC1h 40m
2026-07-03 FOREST3 - Jul 3, 11:00 UTCJul 3, 13:00 UTC2h 0m
2026-06-28 FOREST3 - Jun 28, 06:05 UTCJun 28, 07:54 UTC1h 50m
2026-05-19 FOREST3 - May 19, 07:20 UTCMay 19, 09:05 UTC1h 45m

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-FFB page for operator, model, and routing details .

Mode-S 7C1A05 frequently asked

What is Mode-S code 7C1A05?
7C1A05 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-FFB.
Where is Mode-S 7C1A05 registered?
Mode-S code 7C1A05 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C1A05 broadcasting right now?
No active broadcast right now. Last signal was 24d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C1A05, octal 37015005, decimal 8,133,125.
What flights does 7C1A05 operate?
Mode-S 7C1A05 has broadcast 2 distinct callsigns, including FOREST3, VHFFB.