Apparatus

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sensors Mode-S transponder

C0171A

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FITL · BOEING 777-300ER · operated by Air Canada

Hex
C0171A
Octal
60013432
Decimal
12,588,826
Country
CA
Tail
C-FITL
Type
B77W
No current signal · last broadcast 2h ago
Flights observed
265
Distinct callsigns
20
Country
CA
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C0171A.

Country allocation

The ICAO 24-bit address C0171A 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
ACA860 - 22 2026-07-14
ACA891 Air Canada 19 2026-06-11
ACA861 - 19 2026-07-13
ACA890 Air Canada 13 2026-06-11
ACA854 - 13 2026-06-17
ACA853 - 13 2026-06-18
ACA821 Air Canada 13 2026-05-23
ACA810 - 12 2026-06-28
ACA2 - 12 2026-06-19
ACA811 - 11 2026-06-28
ACA1 - 11 2026-06-18
ACA820 Air Canada 10 2026-05-22
ACA185 - 10 2026-07-09
ACA114 - 9 2026-07-09
ACA858 - 8 2026-07-10
ACA873 - 7 2026-06-29
ACA872 - 7 2026-06-29
ACA897 Air Canada 6 2026-05-26
ACA920 Air Canada 5 2026-06-12
ACA896 Air Canada 5 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ACA860 - Jul 14, 03:20 UTCJul 14, 04:25 UTC1h 5m
2026-07-13 ACA861 - Jul 13, 14:25 UTCJul 13, 23:30 UTC9h 5m
2026-07-13 ACA860 - Jul 13, 03:30 UTCJul 13, 12:05 UTC8h 35m
2026-07-12 ACA861 LHR → YVR Jul 12, 14:35 UTCJul 12, 23:40 UTC9h 5m
2026-07-12 ACA860 - Jul 12, 04:15 UTCJul 12, 11:55 UTC7h 40m
2026-07-12 ACA860 - Jul 12, 03:25 UTCJul 12, 03:40 UTC15m
2026-07-11 ACA861 LHR → YVR Jul 11, 14:40 UTCJul 12, 00:01 UTC9h 20m
2026-07-11 ACA860 YVR → LHR Jul 11, 03:25 UTCJul 11, 12:05 UTC8h 40m
2026-07-10 ACA861 LHR → YVR Jul 10, 14:36 UTCJul 10, 23:33 UTC8h 57m
2026-07-10 ACA861 - Jul 10, 14:40 UTCJul 10, 15:55 UTC1h 15m
2026-07-10 ACA858 YYZ → LHR Jul 10, 04:55 UTCJul 10, 11:10 UTC6h 15m
2026-07-09 ACA114 YVR → YYZ Jul 9, 21:25 UTCJul 10, 01:10 UTC3h 45m
2026-07-09 ACA114 YVR → YYZ Jul 9, 21:25 UTCJul 10, 01:10 UTC3h 45m
2026-07-09 ACA185 YYZ → YVR Jul 9, 12:25 UTCJul 9, 16:55 UTC4h 30m
2026-07-08 ACA859 - Jul 8, 17:10 UTCJul 9, 00:25 UTC7h 15m
2026-07-08 ACA860 YVR → LHR Jul 8, 03:30 UTCJul 8, 12:15 UTC8h 45m
2026-07-07 ACA861 LHR → YVR Jul 7, 14:22 UTCJul 7, 23:28 UTC9h 6m
2026-07-07 ACA860 YVR → LHR Jul 7, 03:35 UTCJul 7, 12:05 UTC8h 30m
2026-07-06 ACA861 - Jul 6, 15:00 UTCJul 7, 00:00 UTC9h 0m
2026-07-06 ACA861 LHR → YVR Jul 6, 14:58 UTCJul 6, 23:55 UTC8h 57m
2026-07-06 ACA860 - Jul 6, 12:20 UTCJul 6, 12:30 UTC10m
2026-07-06 ACA860 - Jul 6, 03:35 UTCJul 6, 04:30 UTC55m
2026-07-06 ACA860 YVR → LHR Jul 6, 03:35 UTCJul 6, 12:01 UTC8h 26m
2026-07-05 ACA861 - Jul 5, 14:40 UTCJul 5, 23:45 UTC9h 5m
2026-07-05 ACA860 - Jul 5, 03:35 UTCJul 5, 04:30 UTC55m
2026-07-05 ACA860 YVR → LHR Jul 5, 03:32 UTCJul 5, 11:46 UTC8h 14m
2026-07-04 ACA861 - Jul 4, 14:30 UTCJul 4, 23:45 UTC9h 15m
2026-07-04 ACA860 YVR → LHR Jul 4, 03:25 UTCJul 4, 11:55 UTC8h 30m
2026-07-03 ACA861 - Jul 3, 14:35 UTCJul 3, 23:40 UTC9h 5m
2026-07-03 ACA858 YYZ → LHR Jul 3, 04:35 UTCJul 3, 10:45 UTC6h 10m
2026-07-02 ACA859 - Jul 2, 17:50 UTCJul 3, 01:10 UTC7h 20m
2026-07-02 ACA860 YVR → LHR Jul 2, 03:45 UTCJul 2, 12:05 UTC8h 20m
2026-07-01 ACA861 - Jul 1, 14:35 UTCJul 1, 23:35 UTC9h 0m
2026-07-01 ACA861 LHR → YVR Jul 1, 14:33 UTCJul 1, 23:23 UTC8h 50m
2026-07-01 ACA858 YYZ → LHR Jul 1, 04:21 UTCJul 1, 10:28 UTC6h 7m
2026-07-01 ACA858 - Jul 1, 04:25 UTCJul 1, 10:30 UTC6h 5m
2026-06-30 ACA114 YVR → YYZ Jun 30, 21:15 UTCJul 1, 01:10 UTC3h 55m
2026-06-30 ACA114 YVR → YYZ Jun 30, 21:15 UTCJul 1, 01:00 UTC3h 45m
2026-06-30 ACA185 YYZ → YVR Jun 30, 12:20 UTCJun 30, 16:30 UTC4h 10m
2026-06-29 ACA873 - Jun 29, 11:14 UTCJun 29, 18:30 UTC7h 15m
2026-06-29 ACA873 CDG → YYZ Jun 29, 11:13 UTCJun 29, 18:43 UTC7h 30m
2026-06-29 ACA872 YYZ → CDG Jun 29, 01:46 UTCJun 29, 08:39 UTC6h 53m
2026-06-29 ACA872 - Jun 29, 01:50 UTCJun 29, 08:44 UTC6h 55m
2026-06-28 ACA811 - Jun 28, 12:35 UTCJun 28, 13:14 UTC40m
2026-06-28 ACA811 LIS → YYZ Jun 28, 12:34 UTCJun 28, 19:47 UTC7h 13m
2026-06-28 ACA810 YYZ → LIS Jun 28, 03:19 UTCJun 28, 09:20 UTC6h 0m
2026-06-27 ACA859 - Jun 27, 17:09 UTCJun 28, 00:00 UTC6h 50m
2026-06-27 ACA860 YVR → LHR Jun 27, 03:30 UTCJun 27, 12:19 UTC8h 50m
2026-06-26 ACA861 - Jun 26, 14:44 UTCJun 26, 23:39 UTC8h 55m
2026-06-26 ACA860 - Jun 26, 03:50 UTCJun 26, 12:24 UTC8h 35m

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

Mode-S C0171A frequently asked

What is Mode-S code C0171A?
C0171A is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FITL.
Where is Mode-S C0171A registered?
Mode-S code C0171A is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0171A 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 C0171A, octal 60013432, decimal 12,588,826.
What flights does C0171A operate?
Mode-S C0171A has broadcast 20 distinct callsigns, including ACA860, ACA891, ACA861, ACA890, ACA854.