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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 Jul 26, 15:45 UTC
Flights observed
232
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 15:45 UTC

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 - 15 2026-07-18
ACA895 - 10 2026-07-18
ACA867 Air Canada 9 2026-07-26
ACA889 - 7 2026-07-13
ACA866 Air Canada 7 2026-07-25
ACA864 Air Canada 7 2026-07-19
ACA812 Air Canada 7 2026-07-23
ACA667 - 7 2026-07-17
ACA664 - 7 2026-07-17
ACA888 - 6 2026-07-13
ACA865 - 6 2026-07-19
ACA813 Air Canada 6 2026-07-23
ACA73 - 6 2026-07-17
ACA825 Air Canada 5 2026-07-20
ACA823 - 5 2026-07-16
ACA822 - 5 2026-07-15
ACA809 Air Canada 5 2026-05-19
ACA72 - 5 2026-07-17
ACA1400 - 5 2026-07-02
ACA835 - 4 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ACA867 LHR → YUL Jul 26, 08:53 UTCJul 26, 15:41 UTC6h 48m
2026-07-26 ACA867 LHR → YUL Jul 26, 08:55 UTCJul 26, 15:45 UTC6h 50m
2026-07-25 ACA866 YUL → LHR Jul 25, 23:10 UTCJul 26, 05:15 UTC6h 5m
2026-07-25 ACA819 VCE → YUL Jul 25, 10:40 UTCJul 25, 18:40 UTC8h 0m
2026-07-24 ACA816 YYZ → VCE Jul 24, 23:25 UTCJul 25, 07:05 UTC7h 40m
2026-07-24 ACA829 CPH → YYZ Jul 24, 10:55 UTCJul 24, 18:55 UTC8h 0m
2026-07-24 ACA829 CPH → YYZ Jul 24, 10:53 UTCJul 24, 18:43 UTC7h 50m
2026-07-24 ACA804 YUL → CPH Jul 24, 00:10 UTCJul 24, 06:15 UTC6h 5m
2026-07-23 ACA813 LIS → YUL Jul 23, 12:05 UTCJul 23, 18:30 UTC6h 25m
2026-07-23 ACA812 YUL → LIS Jul 23, 04:00 UTCJul 23, 10:15 UTC6h 15m
2026-07-22 ACA905 TPA → YYZ Jul 22, 13:10 UTCJul 22, 21:50 UTC8h 40m
2026-07-22 ACA904 YYZ → TPA Jul 22, 02:20 UTCJul 22, 03:45 UTC1h 25m
2026-07-21 ACA819 VCE → YUL Jul 21, 10:30 UTCJul 21, 18:35 UTC8h 5m
2026-07-20 ACA816 - Jul 20, 23:40 UTCJul 21, 07:35 UTC7h 54m
2026-07-20 ACA825 MAD → YYZ Jul 20, 12:15 UTCJul 20, 19:50 UTC7h 35m
2026-07-20 ACA825 MAD → YYZ Jul 20, 12:13 UTCJul 20, 19:33 UTC7h 20m
2026-07-19 ACA834 YYZ → BRU Jul 19, 22:45 UTCJul 20, 05:10 UTC6h 25m
2026-07-19 ACA865 LHR → YUL Jul 19, 13:30 UTCJul 19, 20:15 UTC6h 45m
2026-07-19 ACA864 YUL → LHR Jul 19, 03:25 UTCJul 19, 09:30 UTC6h 5m
2026-07-18 ACA895 MXP → YUL Jul 18, 11:40 UTCJul 18, 19:15 UTC7h 35m
2026-07-18 ACA894 YUL → MXP Jul 18, 02:07 UTCJul 18, 09:12 UTC7h 5m
2026-07-18 ACA894 YUL → MXP Jul 18, 02:09 UTCJul 18, 09:20 UTC7h 11m
2026-07-17 ACA667 - Jul 17, 21:20 UTCJul 17, 22:49 UTC1h 30m
2026-07-17 ACA664 - Jul 17, 17:55 UTCJul 17, 19:00 UTC1h 5m
2026-07-17 ACA73 - Jul 17, 08:25 UTCJul 17, 15:29 UTC7h 5m
2026-07-17 ACA72 - Jul 17, 00:04 UTCJul 17, 06:25 UTC6h 20m
2026-07-16 ACA823 - Jul 16, 18:15 UTCJul 16, 18:25 UTC10m
2026-07-16 ACA823 BCN → YUL Jul 16, 10:41 UTCJul 16, 18:00 UTC7h 19m
2026-07-16 ACA823 BCN → YUL Jul 16, 10:45 UTCJul 16, 18:25 UTC7h 40m
2026-07-15 ACA822 YUL → BCN Jul 15, 23:10 UTCJul 16, 06:05 UTC6h 55m
2026-07-15 ACA813 LIS → YUL Jul 15, 11:00 UTCJul 15, 17:30 UTC6h 30m
2026-07-15 ACA812 - Jul 15, 02:35 UTCJul 15, 03:45 UTC1h 10m
2026-07-15 ACA812 YUL → LIS Jul 15, 02:34 UTCJul 15, 08:25 UTC5h 51m
2026-07-14 ACA667 - Jul 14, 20:40 UTCJul 14, 21:55 UTC1h 15m
2026-07-14 ACA667 YHZ → YUL Jul 14, 20:35 UTCJul 14, 21:49 UTC1h 14m
2026-07-14 ACA664 - Jul 14, 17:50 UTCJul 14, 18:50 UTC1h 0m
2026-07-14 ACA867 - Jul 14, 08:50 UTCJul 14, 15:15 UTC6h 25m
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

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 Jul 26, 15:45 UTC.
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, ACA867, ACA889, ACA866.