sensors Mode-S transponder

C0675A

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GNDP · CESSNA 172 Skyhawk · operated by Calgary Flying Club

Hex
C0675A
Octal
60063532
Decimal
12,609,370
Country
CA
Tail
C-GNDP
Type
C172
No current signal · last broadcast 1d ago
Flights observed
1
Distinct callsigns
1
Country
CA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S C0675A.

Country allocation

The ICAO 24-bit address C0675A 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 1 distinct

Callsign Airline Flights Last seen
CGNDP - 1 2026-04-14

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-14 CGNDP - Apr 14, 05:15 UTCApr 14, 05:30 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 C-GNDP page for operator, model, and routing details .

Mode-S C0675A frequently asked

What is Mode-S code C0675A?
C0675A is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GNDP.
Where is Mode-S C0675A registered?
Mode-S code C0675A is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0675A 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 C0675A, octal 60063532, decimal 12,609,370.
What flights does C0675A operate?
Mode-S C0675A has broadcast 1 distinct callsign, including CGNDP.