Apparatus

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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 1h ago
Flights observed
85
Distinct callsigns
20
Country
CA
Last broadcast
1h 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 Air Canada 12 2026-05-29
ACA859 Air Canada 9 2026-05-19
ACA861 Air Canada 8 2026-05-29
ACA860 Air Canada 7 2026-04-24
ACA185 Air Canada 4 2026-05-21
ACA811 Air Canada 3 2026-05-22
ACA810 Air Canada 3 2026-05-22
ACA112 Air Canada 3 2026-04-17
ACA107 Air Canada 3 2026-04-17
ACA921 Air Canada 2 2026-05-28
ACA873 Air Canada 2 2026-05-26
ACA872 Air Canada 2 2026-05-26
ACA854 Air Canada 2 2026-05-22
ACA7328 Air Canada 2 2026-05-15
ACA7105 Air Canada 2 2026-05-15
ACA4 Air Canada 2 2026-04-14
ACA3 Air Canada 2 2026-04-14
ACA2 Air Canada 2 2026-05-24
ACA110 Air Canada 2 2026-04-14
ACA923 Air Canada 1 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ACA861 LHR → YHZ May 29, 14:30 UTCMay 29, 23:40 UTC9h 10m
2026-05-29 ACA858 YYZ → LHR May 29, 04:10 UTCMay 29, 11:05 UTC6h 55m
2026-05-28 ACA921 PBI → YYZ May 28, 12:50 UTCMay 28, 22:28 UTC9h 38m
2026-05-28 ACA921 PBI → YYZ May 28, 12:50 UTCMay 28, 13:45 UTC55m
2026-05-28 ACA922 YYZ → MCO May 28, 01:35 UTCMay 28, 10:20 UTC8h 45m
2026-05-27 ACA923 MCO → YYZ May 27, 13:00 UTCMay 27, 22:10 UTC9h 10m
2026-05-27 ACA920 YYZ → PBI May 27, 01:44 UTCMay 27, 10:45 UTC9h 0m
2026-05-26 ACA873 CDG → YYZ May 26, 17:04 UTCMay 26, 18:40 UTC1h 35m
2026-05-26 ACA873 CDG → YYZ May 26, 11:20 UTCMay 26, 16:59 UTC5h 40m
2026-05-26 ACA872 YYZ → CDG May 26, 01:05 UTCMay 26, 07:55 UTC6h 50m
2026-05-26 ACA872 YYZ → CDG May 26, 01:01 UTCMay 26, 07:37 UTC6h 36m
2026-05-25 ACA821 BCN → YYZ May 25, 11:35 UTCMay 25, 19:40 UTC8h 4m
2026-05-25 ACA820 YYZ → BCN May 25, 05:25 UTCMay 25, 07:10 UTC1h 45m
2026-05-24 ACA2 HND → YYZ May 24, 09:56 UTCMay 24, 21:20 UTC11h 24m
2026-05-24 ACA2 HND → YYZ May 24, 10:00 UTCMay 24, 21:35 UTC11h 35m
2026-05-23 ACA1 YYZ → HND May 23, 17:35 UTCMay 24, 05:50 UTC12h 16m
2026-05-23 ACA853 LHR → YYZ May 23, 07:45 UTCMay 23, 14:55 UTC7h 10m
2026-05-22 ACA854 YYZ → LHR May 22, 22:47 UTCMay 23, 04:57 UTC6h 10m
2026-05-22 ACA854 YYZ → LHR May 22, 22:50 UTCMay 23, 05:15 UTC6h 25m
2026-05-22 ACA811 LIS → YYZ May 22, 12:45 UTCMay 22, 20:15 UTC7h 30m
2026-05-22 ACA810 YYZ → LIS May 22, 03:50 UTCMay 22, 09:40 UTC5h 50m
2026-05-21 ACA114 YVR → YYZ May 21, 21:00 UTCMay 22, 00:55 UTC3h 55m
2026-05-21 ACA185 YYZ → YVR May 21, 12:20 UTCMay 21, 16:40 UTC4h 20m
2026-05-19 ACA859 LHR → YYZ May 19, 16:55 UTCMay 20, 00:10 UTC7h 15m
2026-05-19 ACA859 LHR → YYZ May 19, 16:53 UTCMay 19, 23:55 UTC7h 2m
2026-05-19 ACA858 YYZ → LHR May 19, 06:10 UTCMay 19, 12:40 UTC6h 30m
2026-05-17 ACA843 FRA → YYZ May 17, 15:35 UTCMay 17, 23:35 UTC8h 0m
2026-05-17 ACA842 YYZ → FRA May 17, 01:35 UTCMay 17, 08:40 UTC7h 5m
2026-05-16 ACA811 LIS → YYZ May 16, 12:36 UTCMay 16, 20:04 UTC7h 28m
2026-05-16 ACA811 LIS → YYZ May 16, 12:40 UTCMay 16, 20:15 UTC7h 35m
2026-05-16 ACA810 YYZ → LIS May 16, 03:05 UTCMay 16, 09:31 UTC6h 26m
2026-05-16 ACA810 YYZ → LIS May 16, 03:03 UTCMay 16, 09:18 UTC6h 15m
2026-05-15 ACA7328 YYZ → DFW May 15, 09:05 UTCMay 15, 09:40 UTC35m
2026-05-15 ACA7328 YYZ → DFW May 15, 09:05 UTCMay 15, 23:54 UTC14h 49m
2026-05-15 ACA7105 SIN → NRT May 15, 01:50 UTCMay 15, 02:10 UTC20m
2026-05-14 ACA7105 SIN → NRT May 14, 22:55 UTCMay 14, 23:10 UTC15m
2026-04-26 ACA7103 SIN → HKG Apr 26, 10:15 UTCApr 26, 17:00 UTC6h 45m
2026-04-25 ACA21 YVR → HKG Apr 25, 15:20 UTCApr 26, 03:40 UTC12h 20m
2026-04-24 ACA859 LHR → YYZ Apr 24, 17:15 UTCApr 24, 23:50 UTC6h 35m
2026-04-24 ACA860 YVR → LHR Apr 24, 03:45 UTCApr 24, 12:15 UTC8h 30m
2026-04-23 ACA861 LHR → YHZ Apr 23, 14:30 UTCApr 23, 23:40 UTC9h 10m
2026-04-23 ACA858 YYZ → LHR Apr 23, 04:00 UTCApr 23, 11:05 UTC7h 5m
2026-04-22 ACA859 LHR → YYZ Apr 22, 17:00 UTCApr 22, 23:50 UTC6h 50m
2026-04-22 ACA858 YYZ → LHR Apr 22, 04:05 UTCApr 22, 10:50 UTC6h 45m
2026-04-21 ACA859 LHR → YYZ Apr 21, 17:05 UTCApr 22, 00:05 UTC7h 0m
2026-04-21 ACA860 YVR → LHR Apr 21, 03:30 UTCApr 21, 03:45 UTC15m
2026-04-21 ACA860 YVR → LHR Apr 21, 03:30 UTCApr 21, 11:59 UTC8h 29m
2026-04-20 ACA861 LHR → YHZ Apr 20, 14:25 UTCApr 20, 23:35 UTC9h 10m
2026-04-20 ACA858 YYZ → LHR Apr 20, 04:05 UTCApr 20, 10:40 UTC6h 35m
2026-04-19 ACA859 LHR → YYZ Apr 19, 17:15 UTCApr 20, 00:30 UTC7h 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-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 1h 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.