sensors Mode-S transponder

C06781

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GNFC · PIPER PA-30 Twin Comanche · operated by Border City Aviation Ltd.

Hex
C06781
Octal
60063601
Decimal
12,609,409
Country
CA
Tail
C-GNFC
Type
PA30
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
2
Country
CA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S C06781.

Country allocation

The ICAO 24-bit address C06781 falls within the block assigned to Canada (CA) by ICAO Annex 10, Volume III. Every aircraft registered in Canada 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
CGNFC - 5 2026-04-13
A - 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 A YXE → YXE Apr 13, 20:35 UTCApr 13, 21:00 UTC25m
2026-04-13 CGNFC YXE → YXE Apr 13, 19:00 UTCApr 13, 19:40 UTC40m
2026-04-13 CGNFC - Apr 13, 16:55 UTCApr 13, 17:45 UTC50m
2026-04-13 CGNFC - Apr 13, 14:25 UTCApr 13, 15:20 UTC55m
2026-04-12 CGNFC YXE → YXE Apr 12, 18:55 UTCApr 12, 19:20 UTC25m
2026-04-12 CGNFC - Apr 12, 17:15 UTCApr 12, 17:25 UTC10m

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 C-GNFC page for operator, model, and routing details .

Mode-S C06781 frequently asked

What is Mode-S code C06781?
C06781 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GNFC.
Where is Mode-S C06781 registered?
Mode-S code C06781 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C06781 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 C06781, octal 60063601, decimal 12,609,409.
What flights does C06781 operate?
Mode-S C06781 has broadcast 2 distinct callsigns, including CGNFC, A.