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sensors Mode-S transponder

C0842D

ICAO 24-bit transponder address · allocated to Canada

Hex
C0842D
Octal
60102055
Decimal
12,616,749
Country
CA
No current signal · last broadcast 18h ago
Flights observed
84
Distinct callsigns
2
Country
CA
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S C0842D.

Country allocation

The ICAO 24-bit address C0842D 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 2 distinct

Callsign Airline Flights Last seen
CGYBK - 33 2026-07-20
GYBK - 1 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 CGYBK - Jul 20, 22:15 UTCJul 20, 22:45 UTC30m
2026-07-18 CGYBK - Jul 18, 21:15 UTCJul 18, 21:55 UTC40m
2026-07-18 CGYBK - Jul 18, 20:05 UTCJul 18, 20:35 UTC30m
2026-07-18 CGYBK - Jul 18, 16:45 UTCJul 18, 17:15 UTC30m
2026-07-16 CGYBK - Jul 16, 19:50 UTCJul 16, 20:19 UTC30m
2026-07-16 CGYBK - Jul 16, 16:35 UTCJul 16, 17:00 UTC25m
2026-07-15 CGYBK - Jul 15, 19:10 UTCJul 15, 19:45 UTC35m
2026-07-15 CGYBK - Jul 15, 15:55 UTCJul 15, 16:25 UTC30m
2026-07-15 CGYBK - Jul 15, 14:35 UTCJul 15, 15:15 UTC40m
2026-07-15 CGYBK - Jul 15, 13:10 UTCJul 15, 13:35 UTC25m
2026-07-15 - - Jul 15, 00:40 UTCJul 15, 01:15 UTC35m
2026-07-14 - - Jul 14, 21:40 UTCJul 14, 22:10 UTC30m
2026-07-14 - - Jul 14, 17:05 UTCJul 14, 17:40 UTC35m
2026-07-14 - - Jul 14, 13:40 UTCJul 14, 14:15 UTC35m
2026-07-14 - - Jul 14, 07:00 UTCJul 14, 07:50 UTC50m
2026-07-14 - - Jul 14, 01:10 UTCJul 14, 02:15 UTC1h 5m
2026-07-13 CGYBK - Jul 13, 23:55 UTCJul 14, 00:20 UTC25m
2026-07-13 - - Jul 13, 22:15 UTCJul 13, 22:45 UTC30m
2026-07-13 - - Jul 13, 20:20 UTCJul 13, 21:00 UTC40m
2026-07-13 - - Jul 13, 12:00 UTCJul 13, 12:45 UTC45m
2026-07-13 - - Jul 13, 03:20 UTCJul 13, 04:45 UTC1h 25m
2026-07-12 - - Jul 12, 22:15 UTCJul 12, 22:55 UTC40m
2026-07-12 CGYBK - Jul 12, 20:30 UTCJul 12, 21:15 UTC45m
2026-07-12 CGYBK - Jul 12, 16:25 UTCJul 12, 17:01 UTC35m
2026-07-12 CGYBK - Jul 12, 02:15 UTCJul 12, 02:45 UTC30m
2026-07-11 CGYBK - Jul 11, 22:45 UTCJul 11, 23:15 UTC30m
2026-07-11 CGYBK - Jul 11, 21:30 UTCJul 11, 21:50 UTC20m
2026-07-11 CGYBK - Jul 11, 17:35 UTCJul 11, 18:10 UTC35m
2026-07-11 - - Jul 11, 02:50 UTCJul 11, 03:10 UTC20m
2026-07-10 - - Jul 10, 23:20 UTCJul 10, 23:50 UTC30m
2026-07-10 CGYBK - Jul 10, 22:05 UTCJul 10, 22:40 UTC35m
2026-07-10 - - Jul 10, 18:35 UTCJul 10, 18:50 UTC15m
2026-07-10 CGYBK - Jul 10, 16:20 UTCJul 10, 16:50 UTC30m
2026-07-09 CGYBK - Jul 9, 19:35 UTCJul 9, 20:00 UTC25m
2026-07-09 - - Jul 9, 01:25 UTCJul 9, 02:00 UTC35m
2026-07-08 - - Jul 8, 21:40 UTCJul 8, 21:55 UTC15m
2026-07-08 - - Jul 8, 18:40 UTCJul 8, 19:10 UTC30m
2026-07-06 - - Jul 6, 14:15 UTCJul 6, 14:55 UTC40m
2026-07-06 CGYBK - Jul 6, 00:55 UTCJul 6, 01:25 UTC30m
2026-07-05 CGYBK - Jul 5, 21:50 UTCJul 5, 22:10 UTC20m
2026-07-05 - - Jul 5, 18:35 UTCJul 5, 19:15 UTC40m
2026-07-05 - - Jul 5, 15:35 UTCJul 5, 16:00 UTC25m
2026-07-05 - - Jul 5, 14:15 UTCJul 5, 14:40 UTC25m
2026-07-04 - - Jul 4, 23:05 UTCJul 4, 23:40 UTC35m
2026-07-04 CGYBK - Jul 4, 21:25 UTCJul 4, 22:00 UTC35m
2026-07-04 CGYBK - Jul 4, 13:40 UTCJul 4, 14:10 UTC30m
2026-07-04 - - Jul 4, 03:30 UTCJul 4, 04:20 UTC50m
2026-07-04 - - Jul 4, 00:35 UTCJul 4, 01:00 UTC25m
2026-07-03 CGYBK - Jul 3, 23:15 UTCJul 3, 23:50 UTC35m
2026-07-03 CGYBK - Jul 3, 13:40 UTCJul 3, 14:00 UTC20m

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.

Mode-S C0842D frequently asked

What is Mode-S code C0842D?
C0842D is an ICAO 24-bit transponder address. Allocated to Canada.
Where is Mode-S C0842D registered?
Mode-S code C0842D is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0842D broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0842D, octal 60102055, decimal 12,616,749.
What flights does C0842D operate?
Mode-S C0842D has broadcast 2 distinct callsigns, including CGYBK, GYBK.