Apparatus

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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
No current signal · last broadcast 2h ago
Flights observed
250
Distinct callsigns
20
Country
CA
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C05840.

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
ACA72 - 11 2026-07-13
ACA834 - 10 2026-06-24
ACA73 - 10 2026-07-14
ACA894 - 9 2026-07-12
ACA833 Air Canada 9 2026-05-21
ACA832 Air Canada 9 2026-05-20
ACA865 Air Canada 8 2026-05-14
ACA850 Air Canada 8 2026-05-14
ACA817 - 8 2026-07-10
ACA885 Air Canada 7 2026-05-30
ACA835 - 7 2026-06-25
ACA306 Air Canada 7 2026-07-06
ACA9XC Air Canada 6 2026-06-25
ACA884 Air Canada 6 2026-05-30
ACA822 - 6 2026-07-12
ACA664 - 6 2026-07-08
ACA301 - 6 2026-07-06
ACA895 - 5 2026-07-12
ACA867 - 5 2026-07-01
ACA818 - 5 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ACA73 - Jul 14, 08:10 UTCJul 14, 09:15 UTC1h 5m
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
2026-07-08 ACA664 - Jul 8, 17:45 UTCJul 8, 18:45 UTC1h 0m
2026-07-08 ACA664 YUL → YHZ Jul 8, 17:45 UTCJul 8, 18:49 UTC1h 4m
2026-07-08 ACA73 - Jul 8, 08:15 UTCJul 8, 15:20 UTC7h 5m
2026-07-08 ACA73 CMN → YUL Jul 8, 08:13 UTCJul 8, 15:07 UTC6h 54m
2026-07-07 ACA72 YUL → CMN Jul 7, 23:45 UTCJul 8, 06:15 UTC6h 30m
2026-07-07 ACA813 LIS → YUL Jul 7, 10:55 UTCJul 7, 17:20 UTC6h 25m
2026-07-07 ACA812 - Jul 7, 02:00 UTCJul 7, 03:30 UTC1h 30m
2026-07-07 ACA812 YUL → LIS Jul 7, 01:57 UTCJul 7, 07:52 UTC5h 55m
2026-07-06 ACA306 YVR → YUL Jul 6, 19:05 UTCJul 6, 23:25 UTC4h 20m
2026-07-06 ACA301 YUL → YVR Jul 6, 11:45 UTCJul 6, 16:40 UTC4h 55m
2026-07-05 ACA306 YVR → YUL Jul 5, 20:50 UTCJul 6, 00:55 UTC4h 5m
2026-07-05 ACA301 YUL → YVR Jul 5, 13:05 UTCJul 5, 18:00 UTC4h 55m
2026-07-04 ACA929 OPO → YUL Jul 4, 11:00 UTCJul 4, 17:35 UTC6h 35m
2026-07-04 ACA928 YUL → OPO Jul 4, 02:45 UTCJul 4, 08:40 UTC5h 55m
2026-07-03 ACA815 - Jul 3, 09:50 UTCJul 3, 17:55 UTC8h 5m
2026-07-03 ACA814 YUL → NCE Jul 3, 01:00 UTCJul 3, 07:50 UTC6h 50m
2026-07-02 ACA929 OPO → YUL Jul 2, 11:40 UTCJul 2, 18:10 UTC6h 30m
2026-07-02 ACA928 YUL → OPO Jul 2, 00:55 UTCJul 2, 06:51 UTC5h 56m
2026-07-01 ACA867 - Jul 1, 08:55 UTCJul 1, 15:50 UTC6h 55m
2026-06-30 ACA866 YUL → LHR Jun 30, 23:15 UTCJul 1, 05:20 UTC6h 5m
2026-06-30 ACA819 VCE → YUL Jun 30, 12:40 UTCJun 30, 14:00 UTC1h 20m
2026-06-30 ACA819 VCE → YUL Jun 30, 12:35 UTCJun 30, 20:32 UTC7h 57m
2026-06-29 ACA816 YYZ → VCE Jun 29, 23:49 UTCJun 30, 07:35 UTC7h 46m
2026-06-29 ACA817 VCE → YYZ Jun 29, 11:14 UTCJun 29, 20:00 UTC8h 45m
2026-06-28 ACA816 YYZ → VCE Jun 28, 23:54 UTCJun 29, 07:30 UTC7h 35m
2026-06-28 ACA825 MAD → YYZ Jun 28, 12:35 UTCJun 28, 20:29 UTC7h 55m
2026-06-28 ACA824 YYZ → MAD Jun 28, 01:02 UTCJun 28, 07:32 UTC6h 30m
2026-06-28 ACA824 YYZ → MAD Jun 28, 01:04 UTCJun 28, 07:50 UTC6h 45m
2026-06-27 ACA907 FCO → YYZ Jun 27, 12:39 UTCJun 27, 21:40 UTC9h 0m
2026-06-27 ACA906 YYZ → FCO Jun 27, 01:37 UTCJun 27, 09:15 UTC7h 38m
2026-06-27 ACA906 YYZ → FCO Jun 27, 01:39 UTCJun 27, 09:29 UTC7h 50m
2026-06-26 ACA907 FCO → YYZ Jun 26, 13:04 UTCJun 26, 21:45 UTC8h 40m
2026-06-26 ACA906 YYZ → FCO Jun 26, 01:34 UTCJun 26, 09:20 UTC7h 45m
2026-06-25 ACA9XC YUL → YYZ Jun 25, 21:04 UTCJun 25, 21:47 UTC43m
2026-06-25 ACA9XC YUL → YYZ Jun 25, 21:05 UTCJun 25, 21:59 UTC55m
2026-06-25 ACA835 MAD → YUL Jun 25, 11:44 UTCJun 25, 18:55 UTC7h 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-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?
No active broadcast right now. Last signal was 2h ago.
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 ACA72, ACA834, ACA73, ACA894, ACA833.