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sensors Mode-S transponder

C0055D

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FCAU · CESSNA 172 Skyhawk · operated by Aquila Aviation Ltd.

Hex
C0055D
Octal
60002535
Decimal
12,584,285
Country
CA
Tail
C-FCAU
Type
C172
No current signal · last broadcast 7h ago
Flights observed
455
Distinct callsigns
1
Country
CA
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S C0055D.

Country allocation

The ICAO 24-bit address C0055D 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
CFCAU - 455 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 CFCAU YXX → YXX Jul 19, 01:35 UTCJul 19, 02:45 UTC1h 10m
2026-07-18 CFCAU YXX → YXX Jul 18, 23:55 UTCJul 19, 00:45 UTC50m
2026-07-18 CFCAU YXX → YXX Jul 18, 21:50 UTCJul 18, 22:45 UTC55m
2026-07-18 CFCAU - Jul 18, 19:40 UTCJul 18, 20:40 UTC1h 0m
2026-07-18 CFCAU - Jul 18, 18:10 UTCJul 18, 18:55 UTC45m
2026-07-18 CFCAU YXX → YXX Jul 18, 16:20 UTCJul 18, 17:05 UTC45m
2026-07-18 CFCAU - Jul 18, 02:09 UTCJul 18, 02:55 UTC46m
2026-07-17 CFCAU - Jul 17, 23:50 UTCJul 18, 01:05 UTC1h 15m
2026-07-17 CFCAU - Jul 17, 22:55 UTCJul 17, 23:05 UTC10m
2026-07-17 CFCAU - Jul 17, 22:15 UTCJul 17, 22:25 UTC10m
2026-07-17 CFCAU YXX → YXX Jul 17, 19:25 UTCJul 17, 20:04 UTC40m
2026-07-17 CFCAU - Jul 17, 17:50 UTCJul 17, 18:34 UTC45m
2026-07-17 CFCAU YXX → YXX Jul 17, 01:55 UTCJul 17, 02:39 UTC45m
2026-07-16 CFCAU - Jul 16, 23:29 UTCJul 17, 00:25 UTC55m
2026-07-16 CFCAU - Jul 16, 22:00 UTCJul 16, 22:49 UTC50m
2026-07-16 CFCAU YXX → YXX Jul 16, 20:05 UTCJul 16, 20:35 UTC30m
2026-07-16 CFCAU - Jul 16, 17:49 UTCJul 16, 18:40 UTC50m
2026-07-16 CFCAU - Jul 16, 15:40 UTCJul 16, 16:35 UTC55m
2026-07-16 CFCAU - Jul 16, 03:50 UTCJul 16, 04:00 UTC10m
2026-07-16 CFCAU YXX → YCW Jul 16, 03:00 UTCJul 16, 03:15 UTC15m
2026-07-16 CFCAU YXX → YXX Jul 16, 01:40 UTCJul 16, 02:20 UTC40m
2026-07-16 CFCAU - Jul 16, 00:15 UTCJul 16, 00:50 UTC35m
2026-07-15 CFCAU - Jul 15, 21:50 UTCJul 15, 22:45 UTC55m
2026-07-15 CFCAU - Jul 15, 19:30 UTCJul 15, 20:40 UTC1h 10m
2026-07-15 CFCAU - Jul 15, 17:55 UTCJul 15, 18:35 UTC40m
2026-07-15 CFCAU - Jul 15, 16:05 UTCJul 15, 16:50 UTC45m
2026-07-15 CFCAU - Jul 15, 02:55 UTCJul 15, 03:10 UTC15m
2026-07-15 CFCAU - Jul 15, 01:55 UTCJul 15, 02:10 UTC15m
2026-07-15 CFCAU - Jul 15, 00:10 UTCJul 15, 00:50 UTC40m
2026-07-14 CFCAU - Jul 14, 22:10 UTCJul 14, 23:00 UTC49m
2026-07-14 CFCAU - Jul 14, 19:50 UTCJul 14, 20:35 UTC45m
2026-07-14 CFCAU - Jul 14, 18:10 UTCJul 14, 19:10 UTC1h 0m
2026-07-14 CFCAU - Jul 14, 16:15 UTCJul 14, 16:55 UTC40m
2026-07-14 CFCAU YXX → YXX Jul 14, 01:45 UTCJul 14, 02:50 UTC1h 5m
2026-07-13 CFCAU YXX → YXX Jul 13, 23:50 UTCJul 14, 00:50 UTC1h 0m
2026-07-13 CFCAU - Jul 13, 21:45 UTCJul 13, 22:50 UTC1h 5m
2026-07-13 CFCAU YXX → YXX Jul 13, 19:40 UTCJul 13, 20:20 UTC40m
2026-07-13 CFCAU YXX → YXX Jul 13, 17:30 UTCJul 13, 18:15 UTC45m
2026-07-13 CFCAU - Jul 13, 15:55 UTCJul 13, 16:30 UTC35m
2026-07-12 CFCAU - Jul 12, 01:50 UTCJul 12, 02:40 UTC50m
2026-07-12 CFCAU - Jul 12, 00:01 UTCJul 12, 01:00 UTC1h 0m
2026-07-11 CFCAU - Jul 11, 22:50 UTCJul 11, 23:00 UTC10m
2026-07-11 CFCAU - Jul 11, 22:01 UTCJul 11, 22:15 UTC15m
2026-07-11 CFCAU - Jul 11, 19:45 UTCJul 11, 20:40 UTC55m
2026-07-11 CFCAU - Jul 11, 17:55 UTCJul 11, 18:55 UTC1h 0m
2026-07-11 CFCAU - Jul 11, 16:50 UTCJul 11, 17:15 UTC25m
2026-07-11 CFCAU YXX → YXX Jul 11, 02:05 UTCJul 11, 02:50 UTC45m
2026-07-11 CFCAU - Jul 11, 00:10 UTCJul 11, 01:00 UTC50m
2026-07-10 CFCAU - Jul 10, 22:00 UTCJul 10, 22:50 UTC50m
2026-07-10 CFCAU YXX → YXX Jul 10, 19:35 UTCJul 10, 20:40 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-FCAU page for operator, model, and routing details .

Mode-S C0055D frequently asked

What is Mode-S code C0055D?
C0055D is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FCAU.
Where is Mode-S C0055D registered?
Mode-S code C0055D is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0055D broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0055D, octal 60002535, decimal 12,584,285.
What flights does C0055D operate?
Mode-S C0055D has broadcast 1 distinct callsign, including CFCAU.