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sensors Mode-S transponder

C05840

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GHKX · AIRBUS A-330-300 · operated by Air Canada

Hex
C05840
Octal
60054100
Decimal
12,605,504
Country
CA
Tail
C-GHKX
Type
A333
Broadcasting now · callsign ACA301 · 38,000 ft
Flights observed
286
Distinct callsigns
20
Country
CA
Last broadcast
Jul 25, 18:00 UTC

Current position

C05840 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C05840 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 20 distinct

Callsign Airline Flights Last seen
ACA894 Air Canada 13 2026-07-22
ACA73 - 13 2026-07-23
ACA72 Air Canada 13 2026-07-22
ACA834 Air Canada 12 2026-07-24
ACA895 Air Canada 9 2026-07-22
ACA833 Air Canada 9 2026-05-21
ACA832 Air Canada 9 2026-05-20
ACA306 Air Canada 9 2026-07-18
ACA865 Air Canada 8 2026-05-14
ACA850 Air Canada 8 2026-05-14
ACA835 Air Canada 8 2026-07-25
ACA817 - 8 2026-07-10
ACA885 Air Canada 7 2026-05-30
ACA814 Air Canada 7 2026-07-24
ACA664 Air Canada 7 2026-07-23
ACA301 Air Canada 7 2026-07-18
ACA9XC Air Canada 6 2026-06-25
ACA884 Air Canada 6 2026-05-30
ACA822 - 6 2026-07-12
ACA815 Air Canada 6 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ACA835 BRU → YYZ Jul 25, 11:15 UTCJul 25, 17:55 UTC6h 40m
2026-07-24 ACA834 YYZ → BRU Jul 24, 22:14 UTCJul 25, 04:31 UTC6h 17m
2026-07-24 ACA834 YYZ → BRU Jul 24, 22:15 UTCJul 25, 04:40 UTC6h 25m
2026-07-24 ACA815 BCN → YYZ Jul 24, 10:10 UTCJul 24, 17:50 UTC7h 40m
2026-07-24 ACA814 YYZ → BCN Jul 24, 00:10 UTCJul 24, 07:15 UTC7h 5m
2026-07-23 ACA667 YHZ → YUL Jul 23, 20:40 UTCJul 23, 21:55 UTC1h 15m
2026-07-23 ACA664 YUL → YHZ Jul 23, 17:50 UTCJul 23, 18:45 UTC55m
2026-07-23 ACA73 - Jul 23, 08:45 UTCJul 23, 09:10 UTC25m
2026-07-23 ACA73 CMN → YUL Jul 23, 08:09 UTCJul 23, 15:06 UTC6h 57m
2026-07-22 ACA72 YUL → CMN Jul 22, 23:50 UTCJul 23, 00:00 UTC10m
2026-07-22 ACA72 YUL → CMN Jul 22, 23:49 UTCJul 23, 06:22 UTC6h 33m
2026-07-22 ACA895 DUB → YYZ Jul 22, 12:25 UTCJul 22, 20:20 UTC7h 55m
2026-07-22 ACA894 YUL → MXP Jul 22, 03:20 UTCJul 22, 04:00 UTC40m
2026-07-22 ACA894 YUL → MXP Jul 22, 03:19 UTCJul 22, 10:33 UTC7h 14m
2026-07-21 ACA894 YUL → MXP Jul 21, 23:45 UTCJul 22, 00:31 UTC46m
2026-07-21 ACA894 YUL → MXP Jul 21, 23:50 UTCJul 22, 00:45 UTC55m
2026-07-21 ACA903 ARN → YYZ Jul 21, 11:10 UTCJul 21, 19:25 UTC8h 15m
2026-07-21 ACA902 YYZ → TPA Jul 21, 02:05 UTCJul 21, 09:05 UTC7h 0m
2026-07-20 ACA895 YUL → YYZ Jul 20, 21:05 UTCJul 20, 21:55 UTC50m
2026-07-20 ACA815 BCN → YYZ Jul 20, 09:40 UTCJul 20, 17:15 UTC7h 35m
2026-07-20 ACA814 YYZ → BCN Jul 20, 00:20 UTCJul 20, 01:35 UTC1h 15m
2026-07-20 ACA814 YYZ → BCN Jul 20, 00:20 UTCJul 20, 07:22 UTC7h 2m
2026-07-18 ACA306 YVR → YUL Jul 18, 18:55 UTCJul 18, 22:55 UTC4h 0m
2026-07-18 ACA306 YVR → YUL Jul 18, 18:53 UTCJul 18, 22:43 UTC3h 50m
2026-07-18 ACA301 YUL → YVR Jul 18, 11:50 UTCJul 18, 16:50 UTC5h 0m
2026-07-17 ACA8XC YYZ → YUL Jul 17, 23:39 UTCJul 18, 00:29 UTC50m
2026-07-17 ACA903 ARN → YYZ Jul 17, 12:04 UTCJul 17, 19:45 UTC7h 40m
2026-07-17 ACA902 YYZ → ARN Jul 17, 02:34 UTCJul 17, 09:45 UTC7h 10m
2026-07-16 ACA825 - Jul 16, 12:09 UTCJul 16, 19:50 UTC7h 40m
2026-07-16 ACA824 - Jul 16, 00:55 UTCJul 16, 02:00 UTC1h 5m
2026-07-16 ACA824 YYZ → MAD Jul 16, 00:55 UTCJul 16, 07:43 UTC6h 48m
2026-07-15 ACA891 - Jul 15, 11:05 UTCJul 15, 20:15 UTC9h 10m
2026-07-15 ACA890 - Jul 15, 00:25 UTCJul 15, 08:25 UTC8h 0m
2026-07-14 ACA895 YUL → YYZ Jul 14, 20:57 UTCJul 14, 21:46 UTC49m
2026-07-14 ACA895 YUL → YYZ Jul 14, 21:00 UTCJul 14, 21:55 UTC55m
2026-07-14 ACA73 - Jul 14, 08:10 UTCJul 14, 09:15 UTC1h 5m
2026-07-14 ACA73 CMN → YUL Jul 14, 08:07 UTCJul 14, 15:00 UTC6h 53m
2026-07-13 ACA72 YUL → CMN Jul 13, 23:45 UTCJul 14, 06:20 UTC6h 35m
2026-07-13 ACA823 BCN → YUL Jul 13, 10:40 UTCJul 13, 18:15 UTC7h 35m
2026-07-12 ACA822 YUL → BCN Jul 12, 23:25 UTCJul 13, 06:25 UTC7h 0m
2026-07-12 ACA895 MXP → YUL Jul 12, 11:30 UTCJul 12, 18:50 UTC7h 20m
2026-07-12 ACA894 YUL → MXP Jul 12, 02:05 UTCJul 12, 09:15 UTC7h 10m
2026-07-11 ACA8XC YYZ → YUL Jul 11, 22:30 UTCJul 11, 23:30 UTC1h 0m
2026-07-11 ACA8XC YYZ → YUL Jul 11, 22:30 UTCJul 11, 23:17 UTC47m
2026-07-11 ACA829 CPH → YYZ Jul 11, 11:10 UTCJul 11, 19:05 UTC7h 55m
2026-07-11 ACA828 - Jul 11, 06:20 UTCJul 11, 09:10 UTC2h 50m
2026-07-11 ACA828 - Jul 11, 02:05 UTCJul 11, 03:35 UTC1h 30m
2026-07-10 ACA817 VCE → YYZ Jul 10, 11:05 UTCJul 10, 19:35 UTC8h 30m
2026-07-10 ACA818 YUL → VCE Jul 10, 00:35 UTCJul 10, 07:50 UTC7h 15m
2026-07-08 ACA667 - Jul 8, 20:30 UTCJul 8, 21:45 UTC1h 15m

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

Mode-S C05840 frequently asked

What is Mode-S code C05840?
C05840 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GHKX.
Where is Mode-S C05840 registered?
Mode-S code C05840 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C05840 broadcasting right now?
Yes. Mode-S C05840 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C05840, octal 60054100, decimal 12,605,504.
What flights does C05840 operate?
Mode-S C05840 has broadcast 20 distinct callsigns, including ACA894, ACA73, ACA72, ACA834, ACA895.