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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 Jul 26, 18:25 UTC
Flights observed
303
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 18:25 UTC

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 Air Canada 25 2026-07-23
ACA861 Air Canada 21 2026-07-22
ACA891 Air Canada 19 2026-06-11
ACA821 - 15 2026-07-16
ACA810 Air Canada 15 2026-07-24
ACA811 - 14 2026-07-24
ACA890 Air Canada 13 2026-06-11
ACA854 - 13 2026-06-17
ACA853 - 13 2026-06-18
ACA859 Air Canada 12 2026-07-23
ACA2 - 12 2026-06-19
ACA185 - 12 2026-07-17
ACA820 - 11 2026-07-16
ACA1 - 11 2026-06-18
ACA858 Air Canada 10 2026-07-21
ACA114 - 10 2026-07-17
ACA897 Air Canada 8 2026-07-25
ACA873 Air Canada 8 2026-07-26
ACA872 Air Canada 8 2026-07-26
ACA896 Air Canada 7 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ACA873 CDG → YYZ Jul 26, 11:00 UTCJul 26, 18:15 UTC7h 15m
2026-07-26 ACA872 YYZ → CDG Jul 26, 01:00 UTCJul 26, 07:35 UTC6h 36m
2026-07-25 ACA897 ATH → YYZ Jul 25, 10:55 UTCJul 25, 20:40 UTC9h 45m
2026-07-25 ACA897 ATH → YYZ Jul 25, 10:54 UTCJul 25, 20:31 UTC9h 37m
2026-07-24 ACA896 YYZ → ATH Jul 24, 22:55 UTCJul 25, 07:45 UTC8h 50m
2026-07-24 ACA896 YYZ → ATH Jul 24, 22:52 UTCJul 25, 07:28 UTC8h 36m
2026-07-24 ACA811 LIS → YYZ Jul 24, 12:40 UTCJul 24, 19:40 UTC7h 0m
2026-07-24 ACA810 YYZ → LIS Jul 24, 03:15 UTCJul 24, 09:44 UTC6h 29m
2026-07-24 ACA810 YYZ → LIS Jul 24, 03:20 UTCJul 24, 09:55 UTC6h 35m
2026-07-23 ACA859 LHR → YYZ Jul 23, 23:45 UTCJul 23, 23:50 UTC5m
2026-07-23 ACA859 LHR → YYZ Jul 23, 17:00 UTCJul 23, 23:50 UTC6h 50m
2026-07-23 ACA859 LHR → YYZ Jul 23, 16:56 UTCJul 23, 23:28 UTC6h 32m
2026-07-23 ACA860 YVR → LHR Jul 23, 03:30 UTCJul 23, 12:00 UTC8h 30m
2026-07-23 ACA860 YVR → LHR Jul 23, 03:28 UTCJul 23, 11:53 UTC8h 25m
2026-07-22 ACA861 LHR → YHZ Jul 22, 14:25 UTCJul 22, 23:25 UTC9h 0m
2026-07-22 ACA860 YVR → LHR Jul 22, 03:25 UTCJul 22, 11:50 UTC8h 25m
2026-07-21 ACA861 LHR → YHZ Jul 21, 14:35 UTCJul 21, 23:30 UTC8h 55m
2026-07-21 ACA858 YYZ → LHR Jul 21, 04:10 UTCJul 21, 10:45 UTC6h 35m
2026-07-20 ACA148 YYC → YYZ Jul 20, 22:13 UTCJul 21, 01:01 UTC2h 48m
2026-07-20 ACA148 YYC → YYZ Jul 20, 22:15 UTCJul 21, 01:10 UTC2h 54m
2026-07-20 ACA141 - Jul 20, 16:25 UTCJul 20, 16:30 UTC5m
2026-07-20 ACA141 YYZ → YYC Jul 20, 16:23 UTCJul 20, 19:53 UTC3h 30m
2026-07-20 ACA124 YVR → YYZ Jul 20, 01:10 UTCJul 20, 04:40 UTC3h 30m
2026-07-19 ACA113 - Jul 19, 18:25 UTCJul 19, 23:05 UTC4h 40m
2026-07-18 ACA859 - Jul 18, 22:30 UTCJul 19, 00:15 UTC1h 45m
2026-07-18 ACA859 - Jul 18, 17:05 UTCJul 18, 22:25 UTC5h 20m
2026-07-18 ACA858 YYZ → LHR Jul 18, 04:35 UTCJul 18, 11:10 UTC6h 35m
2026-07-17 ACA114 YVR → YYZ Jul 17, 21:30 UTCJul 18, 01:25 UTC3h 55m
2026-07-17 ACA185 YYZ → YVR Jul 17, 13:21 UTCJul 17, 17:38 UTC4h 17m
2026-07-17 ACA185 - Jul 17, 13:25 UTCJul 17, 17:50 UTC4h 25m
2026-07-16 ACA821 BCN → YYZ Jul 16, 11:50 UTCJul 16, 19:50 UTC8h 0m
2026-07-16 ACA821 BCN → YYZ Jul 16, 11:46 UTCJul 16, 19:33 UTC7h 47m
2026-07-16 ACA820 YYZ → BCN Jul 16, 00:15 UTCJul 16, 07:40 UTC7h 25m
2026-07-15 ACA811 LIS → YYZ Jul 15, 12:36 UTCJul 15, 19:23 UTC6h 47m
2026-07-15 ACA811 LIS → YYZ Jul 15, 12:40 UTCJul 15, 19:30 UTC6h 50m
2026-07-15 ACA810 YYZ → LIS Jul 15, 03:55 UTCJul 15, 10:15 UTC6h 20m
2026-07-14 ACA859 - Jul 14, 17:05 UTCJul 15, 00:05 UTC6h 59m
2026-07-14 ACA859 LHR → YYZ Jul 14, 17:04 UTCJul 14, 23:54 UTC6h 50m
2026-07-14 ACA860 - Jul 14, 03:20 UTCJul 14, 12:00 UTC8h 40m
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

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 Jul 26, 18:25 UTC.
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, ACA861, ACA891, ACA821, ACA810.