sensors Mode-S transponder

C06723

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GNBM · CESSNA 150 · operated by AROCLUB DE MONTRAL INC. / MONTREAL FLYING CLUB INC.

Hex
C06723
Octal
60063443
Decimal
12,609,315
Country
CA
Tail
C-GNBM
Type
C150
No current signal · last broadcast 2d ago
Flights observed
1
Distinct callsigns
1
Country
CA
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S C06723.

Country allocation

The ICAO 24-bit address C06723 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
CGNBM - 1 2026-04-12

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-12 CGNBM YHU → YHU Apr 12, 17:55 UTCApr 12, 19:00 UTC1h 5m

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

Mode-S C06723 frequently asked

What is Mode-S code C06723?
C06723 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GNBM.
Where is Mode-S C06723 registered?
Mode-S code C06723 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C06723 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C06723, octal 60063443, decimal 12,609,315.
What flights does C06723 operate?
Mode-S C06723 has broadcast 1 distinct callsign, including CGNBM.