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sensors Mode-S transponder

C0173F

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C0173F
Octal
60013477
Decimal
12,588,863
Country
CA
Tail
C-FIUW
Type
B77W
No current signal · last broadcast 8h ago
Flights observed
210
Distinct callsigns
20
Country
CA
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S C0173F.

Country allocation

The ICAO 24-bit address C0173F 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
ACA858 - 21 2026-07-09
ACA859 - 19 2026-07-10
ACA861 - 18 2026-07-09
ACA860 - 17 2026-07-10
ACA185 - 11 2026-07-08
ACA114 - 9 2026-07-08
ACA811 - 8 2026-07-11
ACA810 - 8 2026-07-11
ACA921 - 5 2026-06-15
ACA897 - 5 2026-07-13
ACA886 - 5 2026-06-29
ACA872 - 5 2026-07-12
ACA854 - 5 2026-07-01
ACA821 - 5 2026-07-04
ACA873 - 4 2026-07-12
ACA853 - 4 2026-07-02
ACA820 - 4 2026-07-04
ACA2 - 4 2026-07-03
ACA1 - 4 2026-07-02
ACA922 Air Canada 3 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ACA897 - Jul 13, 21:15 UTCJul 13, 21:45 UTC30m
2026-07-13 ACA897 ATH → YYZ Jul 13, 12:24 UTCJul 13, 22:13 UTC9h 49m
2026-07-13 ACA897 - Jul 13, 12:25 UTCJul 13, 21:10 UTC8h 45m
2026-07-13 ACA896 YYZ → ATH Jul 13, 00:30 UTCJul 13, 09:45 UTC9h 15m
2026-07-12 ACA873 - Jul 12, 11:05 UTCJul 12, 18:20 UTC7h 15m
2026-07-12 ACA872 - Jul 12, 01:05 UTCJul 12, 08:01 UTC6h 55m
2026-07-11 ACA811 LIS → YYZ Jul 11, 12:40 UTCJul 11, 19:45 UTC7h 5m
2026-07-11 ACA810 YYZ → LIS Jul 11, 03:20 UTCJul 11, 09:45 UTC6h 25m
2026-07-10 ACA859 - Jul 10, 17:30 UTCJul 11, 00:35 UTC7h 5m
2026-07-10 ACA859 LHR → YYZ Jul 10, 17:27 UTCJul 11, 00:23 UTC6h 56m
2026-07-10 ACA860 - Jul 10, 11:55 UTCJul 10, 12:00 UTC5m
2026-07-10 ACA860 - Jul 10, 03:25 UTCJul 10, 03:40 UTC15m
2026-07-09 ACA861 - Jul 9, 14:40 UTCJul 9, 23:40 UTC9h 0m
2026-07-09 ACA858 YYZ → LHR Jul 9, 04:10 UTCJul 9, 10:50 UTC6h 40m
2026-07-08 ACA114 - Jul 8, 21:20 UTCJul 9, 01:10 UTC3h 50m
2026-07-08 ACA185 YYZ → YVR Jul 8, 12:15 UTCJul 8, 16:45 UTC4h 30m
2026-07-07 ACA859 - Jul 7, 17:15 UTCJul 7, 17:45 UTC30m
2026-07-07 ACA859 LHR → YYZ Jul 7, 17:15 UTCJul 8, 00:01 UTC6h 46m
2026-07-07 ACA858 YYZ → LHR Jul 7, 04:10 UTCJul 7, 10:50 UTC6h 40m
2026-07-06 ACA114 - Jul 6, 21:25 UTCJul 7, 01:25 UTC4h 0m
2026-07-06 ACA114 YVR → YYZ Jul 6, 21:23 UTCJul 7, 01:16 UTC3h 53m
2026-07-06 ACA185 - Jul 6, 12:30 UTCJul 6, 16:50 UTC4h 20m
2026-07-05 ACA897 ATH → YYZ Jul 5, 10:25 UTCJul 5, 20:35 UTC10h 10m
2026-07-05 ACA897 ATH → YYZ Jul 5, 10:26 UTCJul 5, 20:23 UTC9h 57m
2026-07-04 ACA896 YYZ → ATH Jul 4, 23:05 UTCJul 5, 07:50 UTC8h 45m
2026-07-04 ACA821 BCN → YYZ Jul 4, 11:45 UTCJul 4, 19:55 UTC8h 10m
2026-07-04 ACA820 YYZ → BCN Jul 4, 00:25 UTCJul 4, 07:25 UTC7h 0m
2026-07-03 ACA2 HND → YYZ Jul 3, 09:35 UTCJul 3, 21:05 UTC11h 30m
2026-07-02 ACA1 - Jul 2, 17:35 UTCJul 2, 17:45 UTC10m
2026-07-02 ACA1 YYZ → HND Jul 2, 17:35 UTCJul 3, 05:51 UTC12h 16m
2026-07-02 ACA853 - Jul 2, 07:50 UTCJul 2, 15:00 UTC7h 10m
2026-07-01 ACA854 YYZ → LHR Jul 1, 23:30 UTCJul 2, 05:35 UTC6h 5m
2026-07-01 ACA821 BCN → YYZ Jul 1, 11:50 UTCJul 1, 20:00 UTC8h 10m
2026-07-01 ACA820 YYZ → BCN Jul 1, 00:35 UTCJul 1, 07:50 UTC7h 15m
2026-06-30 ACA873 - Jun 30, 11:30 UTCJun 30, 19:00 UTC7h 30m
2026-06-30 ACA872 YYZ → CDG Jun 30, 01:09 UTCJun 30, 07:51 UTC6h 42m
2026-06-30 ACA872 - Jun 30, 01:09 UTCJun 30, 08:00 UTC6h 51m
2026-06-29 ACA887 VIE → YYZ Jun 29, 09:00 UTCJun 29, 17:10 UTC8h 10m
2026-06-29 ACA886 - Jun 29, 06:19 UTCJun 29, 06:24 UTC5m
2026-06-28 ACA886 - Jun 28, 22:29 UTCJun 29, 06:24 UTC7h 55m
2026-06-28 ACA886 YYZ → VIE Jun 28, 22:25 UTCJun 29, 06:04 UTC7h 39m
2026-06-28 ACA887 VIE → YYZ Jun 28, 09:15 UTCJun 28, 17:50 UTC8h 35m
2026-06-27 ACA886 YYZ → VIE Jun 27, 22:37 UTCJun 28, 06:11 UTC7h 34m
2026-06-27 ACA886 - Jun 27, 22:40 UTCJun 27, 23:45 UTC1h 5m
2026-06-27 ACA821 BCN → YYZ Jun 27, 11:50 UTCJun 27, 19:45 UTC7h 55m
2026-06-27 ACA821 BCN → YYZ Jun 27, 11:46 UTCJun 27, 19:34 UTC7h 48m
2026-06-27 ACA820 - Jun 27, 02:50 UTCJun 27, 09:40 UTC6h 50m
2026-06-26 ACA811 LIS → YYZ Jun 26, 13:30 UTCJun 26, 20:55 UTC7h 25m
2026-06-26 ACA810 YYZ → LIS Jun 26, 05:02 UTCJun 26, 11:07 UTC6h 5m
2026-06-26 ACA810 - Jun 26, 05:05 UTCJun 26, 06:54 UTC1h 50m

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

Mode-S C0173F frequently asked

What is Mode-S code C0173F?
C0173F is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FIUW.
Where is Mode-S C0173F registered?
Mode-S code C0173F is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C0173F broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C0173F, octal 60013477, decimal 12,588,863.
What flights does C0173F operate?
Mode-S C0173F has broadcast 20 distinct callsigns, including ACA858, ACA859, ACA861, ACA860, ACA185.