Apparatus

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sensors Mode-S transponder

C01723

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C01723
Octal
60013443
Decimal
12,588,835
Country
CA
Tail
C-FITU
Type
B77W
No current signal · last broadcast 17h ago
Flights observed
141
Distinct callsigns
20
Country
CA
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S C01723.

Country allocation

The ICAO 24-bit address C01723 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
ACA890 Air Canada 11 2026-05-01
ACA859 Air Canada 11 2026-05-27
ACA858 Air Canada 10 2026-05-26
ACA873 Air Canada 9 2026-05-20
ACA891 Air Canada 8 2026-05-01
ACA872 Air Canada 8 2026-05-20
ACA860 Air Canada 8 2026-05-27
ACA821 Air Canada 7 2026-05-08
ACA861 Air Canada 6 2026-05-26
ACA820 Air Canada 6 2026-05-08
ACA811 Air Canada 6 2026-05-28
ACA853 Air Canada 5 2026-05-29
ACA810 Air Canada 5 2026-05-28
ACA2 Air Canada 4 2026-05-21
ACA185 Air Canada 4 2026-05-23
ACA1 Air Canada 4 2026-05-20
ACA896 Air Canada 3 2026-05-07
ACA854 Air Canada 3 2026-05-28
ACA1373 Air Canada 3 2026-04-18
ACA1370 - 3 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ACA853 LHR → YYZ May 29, 08:00 UTCMay 29, 08:45 UTC45m
2026-05-29 ACA853 LHR → YYZ May 29, 08:00 UTCMay 29, 14:27 UTC6h 27m
2026-05-28 ACA854 YYZ → LHR May 28, 23:05 UTCMay 29, 05:45 UTC6h 40m
2026-05-28 ACA811 LIS → YYZ May 28, 13:25 UTCMay 28, 20:14 UTC6h 49m
2026-05-28 ACA811 LIS → YYZ May 28, 13:25 UTCMay 28, 14:05 UTC40m
2026-05-28 ACA810 YYZ → LIS May 28, 03:10 UTCMay 28, 09:25 UTC6h 15m
2026-05-27 ACA859 LHR → YYZ May 27, 17:10 UTCMay 27, 23:55 UTC6h 45m
2026-05-27 ACA860 YVR → LHR May 27, 03:29 UTCMay 27, 10:45 UTC7h 15m
2026-05-27 ACA860 YVR → LHR May 27, 03:27 UTCMay 27, 11:42 UTC8h 15m
2026-05-26 ACA861 LHR → YHZ May 26, 14:30 UTCMay 26, 23:35 UTC9h 5m
2026-05-26 ACA858 YYZ → LHR May 26, 04:10 UTCMay 26, 10:34 UTC6h 25m
2026-05-25 ACA859 LHR → YYZ May 25, 17:20 UTCMay 26, 00:39 UTC7h 19m
2026-05-25 ACA860 YVR → LHR May 25, 03:25 UTCMay 25, 12:00 UTC8h 35m
2026-05-24 ACA861 LHR → YHZ May 24, 13:50 UTCMay 24, 20:05 UTC6h 15m
2026-05-24 ACA858 YYZ → LHR May 24, 05:08 UTCMay 24, 11:28 UTC6h 20m
2026-05-24 ACA858 YYZ → LHR May 24, 05:10 UTCMay 24, 11:35 UTC6h 25m
2026-05-23 ACA114 YVR → YYZ May 23, 20:45 UTCMay 24, 00:30 UTC3h 45m
2026-05-23 ACA185 YYZ → YVR May 23, 12:15 UTCMay 23, 16:30 UTC4h 15m
2026-05-22 ACA114 YVR → YYZ May 22, 20:15 UTCMay 23, 00:15 UTC4h 0m
2026-05-22 ACA185 YYZ → YVR May 22, 12:40 UTCMay 22, 17:00 UTC4h 20m
2026-05-21 ACA2 HND → YYZ May 21, 12:40 UTCMay 21, 23:50 UTC11h 10m
2026-05-21 ACA2 HND → YYZ May 21, 12:40 UTCMay 21, 23:48 UTC11h 8m
2026-05-20 ACA1 YYZ → HND May 20, 21:05 UTCMay 21, 10:05 UTC13h 0m
2026-05-20 ACA873 CDG → YYZ May 20, 11:00 UTCMay 20, 12:35 UTC1h 35m
2026-05-20 ACA873 CDG → YYZ May 20, 10:55 UTCMay 20, 18:25 UTC7h 30m
2026-05-20 ACA872 YYZ → CDG May 20, 00:50 UTCMay 20, 07:30 UTC6h 41m
2026-05-19 ACA855 LHR → YYZ May 19, 11:10 UTCMay 19, 12:25 UTC1h 15m
2026-05-19 ACA855 LHR → YYZ May 19, 11:09 UTCMay 19, 18:09 UTC7h 0m
2026-05-19 ACA852 YYZ → LHR May 19, 01:50 UTCMay 19, 08:40 UTC6h 50m
2026-05-18 ACA2313 CUN → YYZ May 18, 17:35 UTCMay 18, 20:45 UTC3h 9m
2026-05-18 ACA2312 ICN → YVR May 18, 11:55 UTCMay 18, 15:05 UTC3h 10m
2026-05-18 ACA2312 ICN → YVR May 18, 11:52 UTCMay 18, 15:02 UTC3h 10m
2026-05-17 ACA859 LHR → YYZ May 17, 17:01 UTCMay 18, 00:10 UTC7h 10m
2026-05-17 ACA860 YVR → LHR May 17, 03:55 UTCMay 17, 12:35 UTC8h 40m
2026-05-16 ACA861 LHR → YHZ May 16, 14:25 UTCMay 16, 23:10 UTC8h 45m
2026-05-16 ACA858 YYZ → LHR May 16, 04:14 UTCMay 16, 10:29 UTC6h 15m
2026-05-16 ACA858 YYZ → LHR May 16, 04:15 UTCMay 16, 10:46 UTC6h 31m
2026-05-15 ACA859 LHR → YYZ May 15, 17:00 UTCMay 16, 00:05 UTC7h 5m
2026-05-15 ACA860 YVR → LHR May 15, 03:30 UTCMay 15, 12:00 UTC8h 30m
2026-05-14 ACA861 LHR → YHZ May 14, 14:35 UTCMay 14, 23:45 UTC9h 10m
2026-05-14 ACA858 YYZ → LHR May 14, 04:50 UTCMay 14, 11:15 UTC6h 25m
2026-05-13 ACA859 LHR → YYZ May 13, 18:55 UTCMay 13, 20:10 UTC1h 15m
2026-05-13 ACA859 LHR → YYZ May 13, 18:55 UTCMay 14, 01:55 UTC7h 0m
2026-05-13 ACA858 YYZ → LHR May 13, 04:15 UTCMay 13, 11:00 UTC6h 45m
2026-05-12 ACA859 LHR → YYZ May 12, 17:10 UTCMay 13, 00:15 UTC7h 5m
2026-05-12 ACA858 YYZ → LHR May 12, 03:50 UTCMay 12, 10:00 UTC6h 10m
2026-05-11 ACA859 LHR → YYZ May 11, 17:25 UTCMay 11, 18:35 UTC1h 10m
2026-05-11 ACA860 YVR → LHR May 11, 03:30 UTCMay 11, 11:55 UTC8h 25m
2026-05-10 ACA861 LHR → YHZ May 10, 14:34 UTCMay 10, 23:55 UTC9h 20m
2026-05-10 ACA858 YYZ → LHR May 10, 04:09 UTCMay 10, 10:45 UTC6h 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-FITU page for operator, model, and routing details .

Mode-S C01723 frequently asked

What is Mode-S code C01723?
C01723 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FITU.
Where is Mode-S C01723 registered?
Mode-S code C01723 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C01723 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C01723, octal 60013443, decimal 12,588,835.
What flights does C01723 operate?
Mode-S C01723 has broadcast 20 distinct callsigns, including ACA890, ACA859, ACA858, ACA873, ACA891.