Apparatus

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sensors Mode-S transponder

C04FD4

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GEFZ · CESSNA 172 Skyhawk · operated by 2115828 Ontario Inc.

Hex
C04FD4
Octal
60047724
Decimal
12,603,348
Country
CA
Tail
C-GEFZ
Type
C172
No current signal · last broadcast 1h ago
Flights observed
157
Distinct callsigns
1
Country
CA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S C04FD4.

Country allocation

The ICAO 24-bit address C04FD4 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
CGEFZ - 157 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CGEFZ YOO → YOO May 30, 15:30 UTCMay 30, 16:15 UTC45m
2026-05-30 CGEFZ YOO → YOO May 30, 13:45 UTCMay 30, 14:35 UTC50m
2026-05-27 CGEFZ YOO → YOO May 27, 23:50 UTCMay 28, 01:10 UTC1h 20m
2026-05-27 CGEFZ - May 27, 22:25 UTCMay 27, 23:15 UTC50m
2026-05-27 CGEFZ YOO → YOO May 27, 19:05 UTCMay 27, 20:00 UTC55m
2026-05-27 CGEFZ - May 27, 17:15 UTCMay 27, 17:50 UTC35m
2026-05-27 CGEFZ YOO → YOO May 27, 15:30 UTCMay 27, 16:00 UTC30m
2026-05-27 CGEFZ - May 27, 13:35 UTCMay 27, 14:35 UTC1h 0m
2026-05-26 CGEFZ - May 26, 22:09 UTCMay 26, 22:54 UTC45m
2026-05-26 CGEFZ - May 26, 17:09 UTCMay 26, 17:50 UTC40m
2026-05-26 CGEFZ - May 26, 15:20 UTCMay 26, 16:20 UTC1h 0m
2026-05-26 CGEFZ YOO → YOO May 26, 11:50 UTCMay 26, 12:45 UTC55m
2026-05-26 CGEFZ - May 26, 00:09 UTCMay 26, 01:00 UTC50m
2026-05-25 CGEFZ - May 25, 21:49 UTCMay 25, 22:40 UTC50m
2026-05-25 CGEFZ YOO → YOO May 25, 15:40 UTCMay 25, 16:15 UTC35m
2026-05-22 CGEFZ - May 22, 21:55 UTCMay 22, 22:55 UTC1h 0m
2026-05-22 CGEFZ - May 22, 18:55 UTCMay 22, 19:45 UTC50m
2026-05-22 CGEFZ YOO → YOO May 22, 17:10 UTCMay 22, 18:05 UTC55m
2026-05-22 CGEFZ YOO → YOO May 22, 13:55 UTCMay 22, 14:20 UTC25m
2026-05-22 CGEFZ - May 22, 02:30 UTCMay 22, 04:40 UTC2h 10m
2026-05-21 CGEFZ - May 21, 23:50 UTCMay 22, 00:50 UTC1h 0m
2026-05-21 CGEFZ YOO → YOO May 21, 20:55 UTCMay 21, 21:40 UTC45m
2026-05-21 CGEFZ - May 21, 19:10 UTCMay 21, 19:50 UTC40m
2026-05-21 CGEFZ YOO → YOO May 21, 17:35 UTCMay 21, 17:50 UTC15m
2026-05-21 CGEFZ - May 21, 15:25 UTCMay 21, 16:25 UTC1h 0m
2026-05-21 CGEFZ - May 21, 13:35 UTCMay 21, 14:30 UTC55m
2026-05-21 CGEFZ - May 21, 11:55 UTCMay 21, 12:40 UTC45m
2026-05-21 CGEFZ - May 21, 01:40 UTCMay 21, 03:00 UTC1h 20m
2026-05-20 CGEFZ YOO → YOO May 20, 22:25 UTCMay 20, 23:15 UTC50m
2026-05-20 CGEFZ - May 20, 20:40 UTCMay 20, 21:35 UTC55m
2026-05-20 CGEFZ - May 20, 17:10 UTCMay 20, 18:05 UTC55m
2026-05-20 CGEFZ YOO → YOO May 20, 15:20 UTCMay 20, 16:10 UTC50m
2026-05-17 CGEFZ YOO → YOO May 17, 23:35 UTCMay 18, 00:15 UTC40m
2026-05-17 CGEFZ - May 17, 21:45 UTCMay 17, 22:25 UTC40m
2026-05-17 CGEFZ YOO → YOO May 17, 19:55 UTCMay 17, 20:45 UTC50m
2026-05-17 CGEFZ YOO → YOO May 17, 17:55 UTCMay 17, 18:55 UTC1h 0m
2026-05-17 CGEFZ - May 17, 16:30 UTCMay 17, 16:55 UTC25m
2026-05-17 CGEFZ - May 17, 14:50 UTCMay 17, 15:25 UTC35m
2026-05-16 CGEFZ - May 16, 20:15 UTCMay 16, 21:05 UTC50m
2026-05-16 CGEFZ YOO → YOO May 16, 19:00 UTCMay 16, 19:40 UTC40m
2026-05-16 CGEFZ YOO → YOO May 16, 01:55 UTCMay 16, 02:25 UTC30m
2026-05-15 CGEFZ YOO → YOO May 15, 22:05 UTCMay 15, 23:10 UTC1h 5m
2026-05-15 CGEFZ YOO → YOO May 15, 18:45 UTCMay 15, 19:40 UTC55m
2026-05-15 CGEFZ YOO → YOO May 15, 15:35 UTCMay 15, 16:20 UTC45m
2026-05-15 CGEFZ YOO → YOO May 15, 11:40 UTCMay 15, 12:40 UTC1h 0m
2026-05-12 CGEFZ - May 12, 15:35 UTCMay 12, 16:25 UTC50m
2026-05-12 CGEFZ YOO → YOO May 12, 12:00 UTCMay 12, 12:45 UTC45m
2026-05-11 CGEFZ - May 11, 20:25 UTCMay 11, 21:25 UTC1h 0m
2026-05-11 CGEFZ - May 11, 18:50 UTCMay 11, 19:40 UTC50m
2026-05-11 CGEFZ - May 11, 17:05 UTCMay 11, 17:50 UTC45m

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

Mode-S C04FD4 frequently asked

What is Mode-S code C04FD4?
C04FD4 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GEFZ.
Where is Mode-S C04FD4 registered?
Mode-S code C04FD4 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C04FD4 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C04FD4, octal 60047724, decimal 12,603,348.
What flights does C04FD4 operate?
Mode-S C04FD4 has broadcast 1 distinct callsign, including CGEFZ.