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sensors Mode-S transponder

C051E2

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GFAF · AIRBUS A-330-300 · operated by Air Canada

Hex
C051E2
Octal
60050742
Decimal
12,603,874
Country
CA
Tail
C-GFAF
Type
A333
No current signal · last broadcast 1h ago
Flights observed
196
Distinct callsigns
20
Country
CA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S C051E2.

Country allocation

The ICAO 24-bit address C051E2 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
ACA894 - 13 2026-06-25
ACA895 - 9 2026-07-03
ACA889 - 7 2026-07-13
ACA867 - 7 2026-07-14
ACA888 - 6 2026-07-13
ACA866 - 6 2026-07-13
ACA864 - 6 2026-07-08
ACA865 - 5 2026-07-08
ACA809 Air Canada 5 2026-05-19
ACA73 - 5 2026-07-04
ACA664 - 5 2026-07-10
ACA1400 - 5 2026-07-02
ACA835 - 4 2026-07-07
ACA822 - 4 2026-06-22
ACA813 - 4 2026-07-11
ACA812 - 4 2026-07-11
ACA808 Air Canada 4 2026-05-19
ACA72 - 4 2026-07-04
ACA667 - 4 2026-07-10
ACA326 Air Canada 4 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ACA867 - Jul 14, 08:50 UTCJul 14, 10:00 UTC1h 10m
2026-07-13 ACA888 - Jul 13, 23:40 UTCJul 14, 06:00 UTC6h 20m
2026-07-13 ACA889 - Jul 13, 09:45 UTCJul 13, 16:30 UTC6h 45m
2026-07-13 ACA889 LHR → YOW Jul 13, 09:42 UTCJul 13, 16:30 UTC6h 48m
2026-07-13 ACA866 YUL → LHR Jul 13, 00:55 UTCJul 13, 07:20 UTC6h 25m
2026-07-11 ACA813 LIS → YUL Jul 11, 10:35 UTCJul 11, 17:15 UTC6h 40m
2026-07-11 ACA812 YUL → LIS Jul 11, 02:20 UTCJul 11, 08:25 UTC6h 5m
2026-07-10 ACA667 - Jul 10, 20:50 UTCJul 10, 22:10 UTC1h 20m
2026-07-10 ACA664 - Jul 10, 17:55 UTCJul 10, 18:55 UTC1h 0m
2026-07-10 ACA867 LHR → YUL Jul 10, 09:01 UTCJul 10, 15:52 UTC6h 51m
2026-07-10 ACA867 - Jul 10, 09:05 UTCJul 10, 10:25 UTC1h 20m
2026-07-09 ACA888 - Jul 9, 23:45 UTCJul 10, 05:40 UTC5h 55m
2026-07-09 ACA889 LHR → YOW Jul 9, 08:50 UTCJul 9, 16:00 UTC7h 10m
2026-07-08 ACA866 YUL → LHR Jul 8, 23:13 UTCJul 9, 05:06 UTC5h 53m
2026-07-08 ACA866 - Jul 8, 23:15 UTCJul 9, 04:30 UTC5h 15m
2026-07-08 ACA865 - Jul 8, 13:25 UTCJul 8, 20:05 UTC6h 40m
2026-07-08 ACA864 YUL → LHR Jul 8, 02:55 UTCJul 8, 09:25 UTC6h 30m
2026-07-07 ACA835 - Jul 7, 11:15 UTCJul 7, 12:30 UTC1h 15m
2026-07-07 ACA835 MAD → YUL Jul 7, 11:15 UTCJul 7, 18:05 UTC6h 50m
2026-07-06 ACA824 YYZ → MAD Jul 6, 23:35 UTCJul 7, 06:40 UTC7h 5m
2026-07-06 ACA825 MAD → YYZ Jul 6, 12:15 UTCJul 6, 19:55 UTC7h 40m
2026-07-06 ACA825 MAD → YYZ Jul 6, 12:13 UTCJul 6, 19:45 UTC7h 32m
2026-07-05 ACA824 - Jul 5, 23:25 UTCJul 6, 00:30 UTC1h 5m
2026-07-05 ACA824 YYZ → MAD Jul 5, 23:23 UTCJul 6, 06:13 UTC6h 50m
2026-07-05 ACA817 - Jul 5, 10:35 UTCJul 5, 18:30 UTC7h 55m
2026-07-05 ACA817 VCE → YYZ Jul 5, 10:30 UTCJul 5, 19:10 UTC8h 40m
2026-07-05 ACA818 YUL → VCE Jul 5, 00:25 UTCJul 5, 07:10 UTC6h 45m
2026-07-05 ACA818 YUL → VCE Jul 5, 00:20 UTCJul 5, 06:58 UTC6h 38m
2026-07-04 ACA73 - Jul 4, 08:20 UTCJul 4, 15:35 UTC7h 15m
2026-07-04 ACA72 - Jul 4, 00:00 UTCJul 4, 01:20 UTC1h 20m
2026-07-03 ACA72 YUL → CMN Jul 3, 23:56 UTCJul 4, 06:17 UTC6h 21m
2026-07-03 ACA895 MXP → YUL Jul 3, 12:30 UTCJul 3, 20:35 UTC8h 5m
2026-07-03 ACA2394 YUL → MXP Jul 3, 03:50 UTCJul 3, 10:40 UTC6h 50m
2026-07-02 ACA1403 CUN → YUL Jul 2, 19:00 UTCJul 2, 22:45 UTC3h 45m
2026-07-02 ACA1400 YUL → CUN Jul 2, 13:00 UTCJul 2, 17:05 UTC4h 5m
2026-07-01 ACA7052 YYZ → YUL Jul 1, 23:24 UTCJul 2, 00:15 UTC51m
2026-07-01 ACA7052 YYZ → YUL Jul 1, 23:25 UTCJul 2, 00:25 UTC1h 0m
2026-07-01 ACA935 PRG → YYZ Jul 1, 11:20 UTCJul 1, 19:45 UTC8h 25m
2026-07-01 ACA934 YYZ → PUJ Jul 1, 01:25 UTCJul 1, 09:10 UTC7h 45m
2026-06-30 ACA903 TPA → YYZ Jun 30, 13:30 UTCJun 30, 21:15 UTC7h 45m
2026-06-30 ACA902 YYZ → TPA Jun 30, 04:05 UTCJun 30, 11:15 UTC7h 10m
2026-06-30 ACA907 FCO → YYZ Jun 30, 00:45 UTCJun 30, 01:14 UTC30m
2026-06-29 ACA907 FCO → YYZ Jun 29, 16:04 UTCJun 29, 19:20 UTC3h 15m
2026-06-29 ACA907 FCO → YYZ Jun 29, 16:00 UTCJun 30, 01:00 UTC9h 0m
2026-06-29 ACA906 YYZ → FCO Jun 29, 05:04 UTCJun 29, 13:00 UTC7h 55m
2026-06-27 ACA935 PRG → YYZ Jun 27, 11:25 UTCJun 27, 19:39 UTC8h 15m
2026-06-27 ACA934 YYZ → PUJ Jun 27, 01:15 UTCJun 27, 08:29 UTC7h 15m
2026-06-27 ACA934 YYZ → PUJ Jun 27, 01:12 UTCJun 27, 08:32 UTC7h 20m
2026-06-26 ACA825 MAD → YYZ Jun 26, 11:55 UTCJun 26, 19:45 UTC7h 50m
2026-06-25 ACA834 YUL → MAD Jun 25, 22:24 UTCJun 26, 04:39 UTC6h 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-GFAF page for operator, model, and routing details .

Mode-S C051E2 frequently asked

What is Mode-S code C051E2?
C051E2 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GFAF.
Where is Mode-S C051E2 registered?
Mode-S code C051E2 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C051E2 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 C051E2, octal 60050742, decimal 12,603,874.
What flights does C051E2 operate?
Mode-S C051E2 has broadcast 20 distinct callsigns, including ACA894, ACA895, ACA889, ACA867, ACA888.