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sensors Mode-S transponder

C071DB

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GRDA · CESSNA 150 · operated by AROCLUB DE MONTRAL INC. / MONTREAL FLYING CLUB INC. (AIR RICHELIEU)

Hex
C071DB
Octal
60070733
Decimal
12,612,059
Country
CA
Tail
C-GRDA
Type
C150
No current signal · last broadcast 12h ago
Flights observed
157
Distinct callsigns
1
Country
CA
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S C071DB.

Country allocation

The ICAO 24-bit address C071DB 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
CGRDA - 157 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CGRDA YHU → YHU Jul 13, 22:55 UTCJul 13, 23:25 UTC30m
2026-07-13 CGRDA - Jul 13, 18:35 UTCJul 13, 19:45 UTC1h 10m
2026-07-13 CGRDA YHU → YHU Jul 13, 15:25 UTCJul 13, 15:50 UTC25m
2026-07-11 CGRDA - Jul 11, 18:05 UTCJul 11, 18:45 UTC40m
2026-07-11 CGRDA - Jul 11, 15:35 UTCJul 11, 16:20 UTC45m
2026-07-11 CGRDA - Jul 11, 10:30 UTCJul 11, 11:25 UTC55m
2026-07-10 CGRDA YHU → YHU Jul 10, 19:40 UTCJul 10, 21:05 UTC1h 25m
2026-07-10 CGRDA - Jul 10, 17:50 UTCJul 10, 18:45 UTC55m
2026-07-10 CGRDA - Jul 10, 15:35 UTCJul 10, 16:50 UTC1h 15m
2026-07-10 CGRDA - Jul 10, 13:00 UTCJul 10, 13:40 UTC40m
2026-07-10 CGRDA - Jul 10, 10:30 UTCJul 10, 11:45 UTC1h 15m
2026-07-09 CGRDA - Jul 9, 12:05 UTCJul 9, 12:45 UTC40m
2026-07-08 CGRDA - Jul 8, 23:25 UTCJul 9, 00:50 UTC1h 25m
2026-07-08 CGRDA YHU → YHU Jul 8, 20:15 UTCJul 8, 21:40 UTC1h 25m
2026-07-07 CGRDA YHU → YHU Jul 7, 14:00 UTCJul 7, 15:25 UTC1h 25m
2026-07-07 CGRDA - Jul 7, 11:15 UTCJul 7, 12:40 UTC1h 25m
2026-07-06 CGRDA - Jul 6, 22:05 UTCJul 6, 22:55 UTC50m
2026-07-06 CGRDA - Jul 6, 20:40 UTCJul 6, 20:55 UTC15m
2026-07-06 CGRDA - Jul 6, 17:45 UTCJul 6, 18:40 UTC55m
2026-07-04 CGRDA - Jul 4, 17:40 UTCJul 4, 18:55 UTC1h 15m
2026-07-04 CGRDA YHU → YHU Jul 4, 01:55 UTCJul 4, 03:10 UTC1h 15m
2026-07-03 CGRDA YHU → YHU Jul 3, 19:00 UTCJul 3, 20:35 UTC1h 35m
2026-07-03 CGRDA - Jul 3, 16:35 UTCJul 3, 17:40 UTC1h 5m
2026-06-30 CGRDA - Jun 30, 23:20 UTCJul 1, 00:30 UTC1h 10m
2026-06-30 CGRDA YHU → YHU Jun 30, 19:10 UTCJun 30, 20:20 UTC1h 10m
2026-06-30 CGRDA - Jun 30, 12:50 UTCJun 30, 14:35 UTC1h 45m
2026-06-29 CGRDA - Jun 29, 22:59 UTCJun 29, 23:49 UTC50m
2026-06-29 CGRDA - Jun 29, 20:54 UTCJun 29, 22:00 UTC1h 5m
2026-06-29 CGRDA - Jun 29, 17:59 UTCJun 29, 19:20 UTC1h 20m
2026-06-28 CGRDA YHU → YHU Jun 28, 13:04 UTCJun 28, 13:29 UTC25m
2026-06-28 CGRDA - Jun 28, 10:35 UTCJun 28, 11:59 UTC1h 25m
2026-06-27 CGRDA YHU → YHU Jun 27, 14:39 UTCJun 27, 16:39 UTC2h 0m
2026-06-26 CGRDA YHU → YHU Jun 26, 17:04 UTCJun 26, 18:15 UTC1h 10m
2026-06-25 CGRDA - Jun 25, 20:09 UTCJun 25, 20:34 UTC25m
2026-06-25 CGRDA - Jun 25, 18:39 UTCJun 25, 19:24 UTC45m
2026-06-25 CGRDA - Jun 25, 16:50 UTCJun 25, 17:44 UTC55m
2026-06-25 CGRDA - Jun 25, 10:55 UTCJun 25, 13:00 UTC2h 5m
2026-06-24 CGRDA - Jun 24, 20:35 UTCJun 24, 21:54 UTC1h 20m
2026-06-24 CGRDA - Jun 24, 16:40 UTCJun 24, 18:05 UTC1h 25m
2026-06-24 CGRDA - Jun 24, 10:59 UTCJun 24, 11:45 UTC45m
2026-06-23 CGRDA - Jun 23, 22:44 UTCJun 23, 23:39 UTC55m
2026-06-23 CGRDA YHU → YHU Jun 23, 18:10 UTCJun 23, 20:04 UTC1h 55m
2026-06-23 CGRDA YHU → YHU Jun 23, 14:19 UTCJun 23, 16:29 UTC2h 10m
2026-06-23 CGRDA YHU → YHU Jun 23, 11:10 UTCJun 23, 12:40 UTC1h 30m
2026-06-22 CGRDA YHU → YHU Jun 22, 21:45 UTCJun 22, 23:10 UTC1h 25m
2026-06-22 CGRDA - Jun 22, 19:49 UTCJun 22, 20:49 UTC1h 0m
2026-06-22 CGRDA YHU → YHU Jun 22, 18:04 UTCJun 22, 18:35 UTC30m
2026-06-22 CGRDA - Jun 22, 15:05 UTCJun 22, 16:14 UTC1h 10m
2026-06-17 CGRDA YHU → YHU Jun 17, 13:20 UTCJun 17, 14:15 UTC55m
2026-06-17 CGRDA YHU → YHU Jun 17, 11:20 UTCJun 17, 12:20 UTC1h 0m

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

Mode-S C071DB frequently asked

What is Mode-S code C071DB?
C071DB is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GRDA.
Where is Mode-S C071DB registered?
Mode-S code C071DB is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C071DB broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C071DB, octal 60070733, decimal 12,612,059.
What flights does C071DB operate?
Mode-S C071DB has broadcast 1 distinct callsign, including CGRDA.