Apparatus

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sensors Mode-S transponder

7CFAA5

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to A60-007 · SIKORSKY UH-60 Black Hawk

Hex
7CFAA5
Octal
37175245
Decimal
8,190,629
Country
AU
Tail
A60-007
Type
H60
No current signal · last broadcast 16h ago
Flights observed
9
Distinct callsigns
1
Country
AU
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 7CFAA5.

Country allocation

The ICAO 24-bit address 7CFAA5 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
VALK81 - 9 2026-04-14

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 VALK81 - Apr 14, 05:15 UTCApr 14, 06:15 UTC1h 0m
2026-04-13 VALK81 - Apr 13, 06:40 UTCApr 13, 06:50 UTC10m
2026-04-13 VALK81 - Apr 13, 04:50 UTCApr 13, 06:35 UTC1h 45m
2026-04-13 VALK81 - Apr 13, 04:20 UTCApr 13, 04:25 UTC5m
2026-04-13 VALK81 - Apr 13, 04:00 UTCApr 13, 04:10 UTC10m
2026-04-13 VALK81 - Apr 13, 03:45 UTCApr 13, 03:55 UTC10m
2026-04-13 VALK81 - Apr 13, 03:25 UTCApr 13, 03:40 UTC15m
2026-04-13 VALK81 - Apr 13, 02:30 UTCApr 13, 03:15 UTC45m
2026-04-13 VALK81 - Apr 13, 02:10 UTCApr 13, 02:25 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 A60-007 page for operator, model, and routing details .

Mode-S 7CFAA5 frequently asked

What is Mode-S code 7CFAA5?
7CFAA5 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to A60-007.
Where is Mode-S 7CFAA5 registered?
Mode-S code 7CFAA5 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7CFAA5 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7CFAA5, octal 37175245, decimal 8,190,629.
What flights does 7CFAA5 operate?
Mode-S 7CFAA5 has broadcast 1 distinct callsign, including VALK81.