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sensors Mode-S transponder

C0840E

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GYAF · AIR TRACTOR AT-504 · operated by Arty's Air Service Ltd.

Hex
C0840E
Octal
60102016
Decimal
12,616,718
Country
CA
Tail
C-GYAF
Type
AT5T
No current signal · last broadcast Jul 25, 18:25 UTC
Flights observed
51
Distinct callsigns
1
Country
CA
Last broadcast
Jul 25, 18:25 UTC

Last known position

Most recent position reported by Mode-S C0840E.

Country allocation

The ICAO 24-bit address C0840E 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
CGYAF - 51 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CGYAF - Jul 25, 18:05 UTCJul 25, 18:25 UTC20m
2026-07-25 CGYAF - Jul 25, 15:45 UTCJul 25, 16:50 UTC1h 5m
2026-07-25 CGYAF - Jul 25, 13:05 UTCJul 25, 15:05 UTC2h 0m
2026-07-24 CGYAF - Jul 24, 01:20 UTCJul 24, 01:55 UTC35m
2026-07-23 CGYAF - Jul 23, 02:15 UTCJul 23, 02:50 UTC35m
2026-07-14 CGYAF - Jul 14, 18:25 UTCJul 14, 19:05 UTC40m
2026-07-14 CGYAF - Jul 14, 10:10 UTCJul 14, 16:25 UTC6h 15m
2026-07-13 CGYAF - Jul 13, 10:35 UTCJul 13, 13:55 UTC3h 20m
2026-07-12 CGYAF - Jul 12, 18:40 UTCJul 12, 19:01 UTC20m
2026-07-12 CGYAF - Jul 12, 17:35 UTCJul 12, 18:01 UTC25m
2026-07-12 CGYAF - Jul 12, 15:15 UTCJul 12, 17:01 UTC1h 45m
2026-07-12 CGYAF - Jul 12, 12:15 UTCJul 12, 14:35 UTC2h 20m
2026-07-12 CGYAF - Jul 12, 10:40 UTCJul 12, 11:40 UTC1h 0m
2026-07-11 CGYAF - Jul 11, 22:30 UTCJul 12, 03:01 UTC4h 30m
2026-07-11 CGYAF - Jul 11, 15:35 UTCJul 11, 20:40 UTC5h 5m
2026-07-11 CGYAF - Jul 11, 10:40 UTCJul 11, 14:50 UTC4h 10m
2026-07-11 CGYAF - Jul 11, 00:05 UTCJul 11, 02:50 UTC2h 45m
2026-07-10 CGYAF - Jul 10, 11:55 UTCJul 10, 23:15 UTC11h 20m
2026-07-09 CGYAF - Jul 9, 22:50 UTCJul 9, 23:35 UTC45m
2026-07-09 CGYAF - Jul 9, 12:55 UTCJul 9, 19:45 UTC6h 50m
2026-07-09 CGYAF - Jul 9, 10:30 UTCJul 9, 12:50 UTC2h 20m
2026-07-08 CGYAF - Jul 8, 10:40 UTCJul 9, 03:05 UTC16h 25m
2026-07-07 CGYAF - Jul 7, 10:30 UTCJul 7, 18:30 UTC8h 0m
2026-07-06 CGYAF - Jul 6, 23:45 UTCJul 7, 03:00 UTC3h 15m
2026-07-06 CGYAF - Jul 6, 15:35 UTCJul 6, 20:50 UTC5h 15m
2026-07-05 CGYAF - Jul 5, 09:55 UTCJul 5, 19:35 UTC9h 40m
2026-07-04 CGYAF - Jul 4, 10:40 UTCJul 5, 02:25 UTC15h 45m
2026-07-03 CGYAF - Jul 3, 22:40 UTCJul 4, 01:30 UTC2h 50m
2026-07-03 CGYAF - Jul 3, 20:00 UTCJul 3, 22:05 UTC2h 5m
2026-07-03 CGYAF - Jul 3, 17:50 UTCJul 3, 18:15 UTC25m
2026-07-03 CGYAF - Jul 3, 14:45 UTCJul 3, 17:10 UTC2h 25m
2026-07-03 CGYAF - Jul 3, 12:30 UTCJul 3, 13:55 UTC1h 25m
2026-07-03 CGYAF - Jul 3, 10:15 UTCJul 3, 10:40 UTC25m
2026-07-02 CGYAF - Jul 2, 10:15 UTCJul 3, 02:15 UTC16h 0m
2026-07-01 CGYAF - Jul 1, 23:00 UTCJul 2, 02:45 UTC3h 45m
2026-07-01 CGYAF - Jul 1, 19:45 UTCJul 1, 20:20 UTC35m
2026-07-01 CGYAF - Jul 1, 10:10 UTCJul 1, 16:30 UTC6h 20m
2026-07-01 CGYAF - Jul 1, 01:00 UTCJul 1, 02:40 UTC1h 40m
2026-06-30 CGYAF - Jun 30, 10:15 UTCJun 30, 13:55 UTC3h 40m
2026-06-29 CGYAF - Jun 29, 16:29 UTCJun 29, 21:09 UTC4h 40m
2026-06-29 CGYAF - Jun 29, 14:44 UTCJun 29, 15:45 UTC1h 0m
2026-06-27 CGYAF - Jun 27, 14:29 UTCJun 27, 15:30 UTC1h 0m
2026-06-27 CGYAF - Jun 27, 01:35 UTCJun 27, 02:25 UTC50m
2026-06-27 CGYAF - Jun 27, 00:20 UTCJun 27, 00:29 UTC10m
2026-06-26 CGYAF - Jun 26, 22:25 UTCJun 26, 23:30 UTC1h 5m
2026-06-13 CGYAF - Jun 13, 15:15 UTCJun 13, 15:45 UTC30m
2026-05-31 CGYAF - May 31, 18:35 UTCMay 31, 19:20 UTC45m
2026-05-31 CGYAF - May 31, 11:20 UTCMay 31, 12:40 UTC1h 20m
2026-05-25 CGYAF - May 25, 21:24 UTCMay 25, 21:49 UTC25m
2026-05-06 CGYAF - May 6, 23:15 UTCMay 7, 00:25 UTC1h 10m

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

Mode-S C0840E frequently asked

What is Mode-S code C0840E?
C0840E is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GYAF.
Where is Mode-S C0840E registered?
Mode-S code C0840E is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0840E broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 18:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0840E, octal 60102016, decimal 12,616,718.
What flights does C0840E operate?
Mode-S C0840E has broadcast 1 distinct callsign, including CGYAF.