Apparatus

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sensors Mode-S transponder

C084A3

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GYFY · AIRBUS A-321 · operated by Air Canada

Hex
C084A3
Octal
60102243
Decimal
12,616,867
Country
CA
Tail
C-GYFY
Type
A321
No current signal · last broadcast 1h ago
Flights observed
226
Distinct callsigns
20
Country
CA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S C084A3.

Country allocation

The ICAO 24-bit address C084A3 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
ACA168 Air Canada 14 2026-05-24
ACA1203 Air Canada 13 2026-04-30
ACA1200 Air Canada 13 2026-04-30
ACA601 Air Canada 12 2026-05-19
ACA167 Air Canada 11 2026-05-24
ACA605 Air Canada 10 2026-04-30
ACA1043 Air Canada 10 2026-05-29
ACA618 Air Canada 9 2026-05-14
ACA1201 Air Canada 9 2026-04-29
ACA1044 Air Canada 9 2026-05-29
ACA1198 Air Canada 7 2026-04-29
ACA614 Air Canada 6 2026-04-29
ACA176 Air Canada 6 2026-05-28
ACA173 Air Canada 6 2026-05-29
ACA725 Air Canada 5 2026-05-22
ACA1141 Air Canada 5 2026-04-28
ACA1138 Air Canada 5 2026-04-28
ACA718 Air Canada 4 2026-05-21
ACA256 Air Canada 4 2026-05-23
ACA175 Air Canada 4 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ACA173 YYZ → YEG May 29, 21:55 UTCMay 30, 00:45 UTC2h 50m
2026-05-29 ACA1044 AUS → YYZ May 29, 17:20 UTCMay 29, 20:15 UTC2h 55m
2026-05-29 ACA1043 YYZ → AUS May 29, 12:55 UTCMay 29, 15:45 UTC2h 50m
2026-05-29 ACA174 YYC → YYZ May 29, 00:10 UTCMay 29, 03:25 UTC3h 15m
2026-05-29 ACA174 YYC → YYZ May 29, 00:07 UTCMay 29, 03:19 UTC3h 12m
2026-05-28 ACA171 YYZ → YEG May 28, 19:15 UTCMay 28, 22:55 UTC3h 40m
2026-05-28 ACA176 YEG → YYZ May 28, 14:05 UTCMay 28, 17:25 UTC3h 20m
2026-05-27 ACA175 YYZ → YEG May 27, 23:40 UTCMay 28, 00:45 UTC1h 5m
2026-05-27 ACA175 YYZ → YEG May 27, 23:05 UTCMay 27, 23:35 UTC30m
2026-05-27 ACA175 YYZ → YEG May 27, 23:05 UTCMay 28, 02:46 UTC3h 41m
2026-05-27 ACA1044 AUS → YYZ May 27, 17:50 UTCMay 27, 20:35 UTC2h 45m
2026-05-27 ACA1044 AUS → YYZ May 27, 17:49 UTCMay 27, 20:25 UTC2h 36m
2026-05-27 ACA1043 YYZ → AUS May 27, 13:15 UTCMay 27, 16:20 UTC3h 5m
2026-05-27 ACA156 YYC → YYZ May 27, 07:25 UTCMay 27, 10:45 UTC3h 20m
2026-05-27 ACA226 YVR → YYC May 27, 02:39 UTCMay 27, 03:50 UTC1h 10m
2026-05-26 ACA109 YYZ → YVR May 26, 17:09 UTCMay 26, 21:44 UTC4h 35m
2026-05-26 ACA160 YEG → YYZ May 26, 12:05 UTCMay 26, 15:24 UTC3h 20m
2026-05-26 ACA160 YEG → YYZ May 26, 12:00 UTCMay 26, 15:17 UTC3h 17m
2026-05-25 ACA175 YYZ → YEG May 25, 23:14 UTCMay 26, 02:49 UTC3h 35m
2026-05-25 ACA164 YEG → YYZ May 25, 17:35 UTCMay 25, 20:50 UTC3h 15m
2026-05-25 ACA164 YEG → YYZ May 25, 17:29 UTCMay 25, 20:38 UTC3h 9m
2026-05-25 ACA165 YYZ → YEG May 25, 12:15 UTCMay 25, 16:00 UTC3h 45m
2026-05-25 ACA178 YEG → YYZ May 25, 07:15 UTCMay 25, 10:35 UTC3h 20m
2026-05-25 ACA177 YYZ → YEG May 25, 01:55 UTCMay 25, 05:30 UTC3h 35m
2026-05-25 ACA177 YYZ → YEG May 25, 01:42 UTCMay 25, 05:19 UTC3h 37m
2026-05-24 ACA168 YEG → YYZ May 24, 23:00 UTCMay 24, 23:15 UTC15m
2026-05-24 ACA168 YEG → YYZ May 24, 19:55 UTCMay 24, 21:45 UTC1h 50m
2026-05-24 ACA168 YEG → YYZ May 24, 19:51 UTCMay 24, 23:00 UTC3h 9m
2026-05-24 ACA167 YYZ → YEG May 24, 14:45 UTCMay 24, 18:25 UTC3h 40m
2026-05-24 ACA703 LGA → YYZ May 24, 11:40 UTCMay 24, 12:40 UTC1h 0m
2026-05-24 ACA703 LGA → YYZ May 24, 11:37 UTCMay 24, 12:33 UTC56m
2026-05-24 ACA724 YYZ → LGA May 24, 02:26 UTCMay 24, 03:22 UTC56m
2026-05-24 ACA724 YYZ → LGA May 24, 02:30 UTCMay 24, 03:35 UTC1h 5m
2026-05-23 ACA168 YEG → YYZ May 23, 19:50 UTCMay 23, 23:15 UTC3h 25m
2026-05-23 ACA168 YEG → YYZ May 23, 19:49 UTCMay 23, 23:00 UTC3h 11m
2026-05-23 ACA167 YYZ → YEG May 23, 14:45 UTCMay 23, 18:10 UTC3h 25m
2026-05-23 ACA256 YWG → YYZ May 23, 10:15 UTCMay 23, 10:45 UTC30m
2026-05-23 ACA256 YWG → YYZ May 23, 10:14 UTCMay 23, 12:14 UTC2h 0m
2026-05-23 ACA271 YYZ → YWG May 23, 02:09 UTCMay 23, 04:13 UTC2h 4m
2026-05-23 ACA271 YYZ → YWG May 23, 02:10 UTCMay 23, 04:20 UTC2h 9m
2026-05-22 ACA168 YEG → YYZ May 22, 20:00 UTCMay 22, 23:20 UTC3h 20m
2026-05-22 ACA167 YYZ → YEG May 22, 14:50 UTCMay 22, 18:40 UTC3h 50m
2026-05-22 ACA725 LGA → YYZ May 22, 02:20 UTCMay 22, 03:20 UTC1h 0m
2026-05-21 ACA718 YYZ → LGA May 21, 23:40 UTCMay 22, 00:45 UTC1h 5m
2026-05-21 ACA1044 AUS → YYZ May 21, 17:20 UTCMay 21, 20:00 UTC2h 40m
2026-05-21 ACA1043 YYZ → AUS May 21, 12:35 UTCMay 21, 15:40 UTC3h 5m
2026-05-21 ACA725 LGA → YYZ May 21, 03:47 UTCMay 21, 04:39 UTC52m
2026-05-21 ACA725 LGA → YYZ May 21, 03:50 UTCMay 21, 04:45 UTC55m
2026-05-21 ACA718 YYZ → LGA May 21, 01:20 UTCMay 21, 02:30 UTC1h 10m
2026-05-20 ACA176 YEG → YYZ May 20, 14:20 UTCMay 20, 17:30 UTC3h 10m

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

Mode-S C084A3 frequently asked

What is Mode-S code C084A3?
C084A3 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GYFY.
Where is Mode-S C084A3 registered?
Mode-S code C084A3 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C084A3 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 C084A3, octal 60102243, decimal 12,616,867.
What flights does C084A3 operate?
Mode-S C084A3 has broadcast 20 distinct callsigns, including ACA168, ACA1203, ACA1200, ACA601, ACA167.