Apparatus

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sensors Mode-S transponder

C04DB0

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GDKX · CESSNA 172 Skyhawk · operated by Rockcliffe Flying Club (1961)

Hex
C04DB0
Octal
60046660
Decimal
12,602,800
Country
CA
Tail
C-GDKX
Type
C172
No current signal · last broadcast 38m ago
Flights observed
199
Distinct callsigns
1
Country
CA
Last broadcast
38m ago

Last known position

Most recent position reported by Mode-S C04DB0.

Country allocation

The ICAO 24-bit address C04DB0 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
CGDKX - 199 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CGDKX - Jul 25, 17:30 UTCJul 25, 18:00 UTC30m
2026-07-25 CGDKX - Jul 25, 14:55 UTCJul 25, 15:50 UTC55m
2026-07-25 CGDKX - Jul 25, 12:50 UTCJul 25, 14:10 UTC1h 20m
2026-07-24 CGDKX - Jul 24, 22:30 UTCJul 24, 23:25 UTC55m
2026-07-23 CGDKX - Jul 23, 22:25 UTCJul 23, 23:05 UTC40m
2026-07-23 CGDKX - Jul 23, 20:15 UTCJul 23, 21:20 UTC1h 5m
2026-07-23 CGDKX - Jul 23, 17:30 UTCJul 23, 18:25 UTC55m
2026-07-23 CGDKX - Jul 23, 12:45 UTCJul 23, 13:35 UTC50m
2026-07-22 CGDKX - Jul 22, 22:35 UTCJul 22, 23:10 UTC35m
2026-07-22 CGDKX - Jul 22, 20:45 UTCJul 22, 21:25 UTC40m
2026-07-22 CGDKX - Jul 22, 18:40 UTCJul 22, 19:55 UTC1h 15m
2026-07-22 CGDKX - Jul 22, 16:30 UTCJul 22, 17:50 UTC1h 20m
2026-07-21 CGDKX - Jul 21, 15:10 UTCJul 21, 15:50 UTC40m
2026-07-21 CGDKX - Jul 21, 02:30 UTCJul 21, 04:20 UTC1h 50m
2026-07-20 CGDKX - Jul 20, 21:20 UTCJul 21, 00:00 UTC2h 39m
2026-07-20 CGDKX - Jul 20, 17:45 UTCJul 20, 18:45 UTC1h 0m
2026-07-20 CGDKX - Jul 20, 16:05 UTCJul 20, 16:40 UTC35m
2026-07-20 CGDKX - Jul 20, 13:55 UTCJul 20, 14:30 UTC35m
2026-07-18 CGDKX - Jul 18, 00:00 UTCJul 18, 01:15 UTC1h 15m
2026-07-17 CGDKX - Jul 17, 20:20 UTCJul 17, 21:10 UTC50m
2026-07-17 CGDKX - Jul 17, 15:55 UTCJul 17, 16:34 UTC40m
2026-07-17 CGDKX - Jul 17, 13:20 UTCJul 17, 14:30 UTC1h 10m
2026-07-17 CGDKX - Jul 17, 03:30 UTCJul 17, 03:59 UTC30m
2026-07-17 CGDKX - Jul 17, 01:45 UTCJul 17, 02:30 UTC45m
2026-07-16 CGDKX - Jul 16, 21:25 UTCJul 16, 22:15 UTC50m
2026-07-16 CGDKX - Jul 16, 19:20 UTCJul 16, 20:00 UTC40m
2026-07-16 CGDKX - Jul 16, 17:35 UTCJul 16, 18:00 UTC25m
2026-07-15 CGDKX - Jul 15, 21:25 UTCJul 15, 22:20 UTC55m
2026-07-14 CGDKX - Jul 14, 21:30 UTCJul 14, 22:00 UTC30m
2026-07-13 CGDKX - Jul 13, 15:35 UTCJul 13, 16:20 UTC45m
2026-07-12 CGDKX - Jul 12, 20:20 UTCJul 12, 20:30 UTC10m
2026-07-12 CGDKX - Jul 12, 14:35 UTCJul 12, 14:50 UTC15m
2026-07-11 CGDKX - Jul 11, 22:01 UTCJul 11, 23:15 UTC1h 15m
2026-07-11 CGDKX - Jul 11, 18:35 UTCJul 11, 19:35 UTC1h 0m
2026-07-11 CGDKX - Jul 11, 17:30 UTCJul 11, 17:45 UTC15m
2026-07-11 CGDKX - Jul 11, 14:40 UTCJul 11, 15:40 UTC1h 0m
2026-07-11 CGDKX - Jul 11, 13:00 UTCJul 11, 13:30 UTC30m
2026-07-08 CGDKX - Jul 8, 19:40 UTCJul 8, 20:20 UTC40m
2026-07-08 CGDKX - Jul 8, 15:10 UTCJul 8, 15:55 UTC45m
2026-07-07 CGDKX - Jul 7, 21:00 UTCJul 7, 21:50 UTC50m
2026-07-07 CGDKX - Jul 7, 18:55 UTCJul 7, 19:55 UTC1h 0m
2026-07-07 CGDKX - Jul 7, 17:05 UTCJul 7, 17:40 UTC35m
2026-07-06 CGDKX - Jul 6, 17:50 UTCJul 6, 20:05 UTC2h 15m
2026-07-04 CGDKX - Jul 4, 23:55 UTCJul 5, 00:40 UTC45m
2026-07-04 CGDKX - Jul 4, 20:00 UTCJul 4, 21:05 UTC1h 5m
2026-07-04 CGDKX - Jul 4, 17:45 UTCJul 4, 18:25 UTC40m
2026-07-04 CGDKX - Jul 4, 14:35 UTCJul 4, 15:30 UTC55m
2026-07-04 CGDKX - Jul 4, 13:05 UTCJul 4, 13:40 UTC35m
2026-07-03 CGDKX - Jul 3, 21:05 UTCJul 3, 21:25 UTC20m
2026-07-03 CGDKX - Jul 3, 19:05 UTCJul 3, 19:35 UTC30m

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

Mode-S C04DB0 frequently asked

What is Mode-S code C04DB0?
C04DB0 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GDKX.
Where is Mode-S C04DB0 registered?
Mode-S code C04DB0 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C04DB0 broadcasting right now?
No active broadcast right now. Last signal was 38m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C04DB0, octal 60046660, decimal 12,602,800.
What flights does C04DB0 operate?
Mode-S C04DB0 has broadcast 1 distinct callsign, including CGDKX.