Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

C051E4

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C051E4
Octal
60050744
Decimal
12,603,876
Country
CA
Tail
C-GFAH
Type
A333
No current signal · last broadcast 1d ago
Flights observed
136
Distinct callsigns
20
Country
CA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S C051E4.

Country allocation

The ICAO 24-bit address C051E4 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
ACA813 Air Canada 11 2026-05-15
ACA895 Air Canada 8 2026-05-20
ACA865 Air Canada 8 2026-05-28
ACA864 Air Canada 6 2026-05-28
ACA812 Air Canada 6 2026-05-15
ACA889 Air Canada 5 2026-05-11
ACA888 Air Canada 5 2026-05-12
ACA851 Air Canada 5 2026-05-23
ACA809 Air Canada 5 2026-05-22
ACA306 Air Canada 5 2026-05-26
ACA301 Air Canada 5 2026-05-26
ACA894 Air Canada 4 2026-05-10
ACA866 Air Canada 4 2026-05-10
ACA856 Air Canada 4 2026-05-23
ACA833 Air Canada 4 2026-05-16
ACA832 Air Canada 4 2026-05-15
ACA808 Air Canada 4 2026-05-22
ACA326 Air Canada 4 2026-05-23
ACA2312 Air Canada 3 2026-04-17
ACA884 Air Canada 2 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 ACA865 LHR → YUL May 28, 19:35 UTCMay 28, 20:15 UTC40m
2026-05-28 ACA865 LHR → YUL May 28, 13:45 UTCMay 28, 14:50 UTC1h 5m
2026-05-28 ACA864 YUL → LHR May 28, 02:55 UTCMay 28, 09:30 UTC6h 35m
2026-05-27 ACA865 LHR → YUL May 27, 13:35 UTCMay 27, 20:00 UTC6h 25m
2026-05-27 ACA864 YUL → LHR May 27, 02:29 UTCMay 27, 08:50 UTC6h 21m
2026-05-26 ACA306 YVR → YUL May 26, 18:50 UTCMay 26, 22:59 UTC4h 10m
2026-05-26 ACA301 YUL → YVR May 26, 11:39 UTCMay 26, 16:30 UTC4h 50m
2026-05-25 ACA324 YYC → YUL May 25, 18:25 UTCMay 25, 22:00 UTC3h 35m
2026-05-25 ACA317 YUL → YVR May 25, 12:40 UTCMay 25, 16:40 UTC4h 0m
2026-05-23 ACA326 YYC → YUL May 23, 20:35 UTCMay 24, 00:05 UTC3h 30m
2026-05-23 ACA851 LHR → YYC May 23, 09:30 UTCMay 23, 18:05 UTC8h 35m
2026-05-23 ACA856 YYZ → LHR May 23, 00:45 UTCMay 23, 07:10 UTC6h 24m
2026-05-22 ACA809 AMS → YYZ May 22, 12:30 UTCMay 22, 19:55 UTC7h 25m
2026-05-22 ACA808 YYZ → AMS May 22, 03:45 UTCMay 22, 10:10 UTC6h 25m
2026-05-21 ACA809 AMS → YYZ May 21, 11:10 UTCMay 21, 18:50 UTC7h 40m
2026-05-21 ACA808 YYZ → AMS May 21, 02:05 UTCMay 21, 08:35 UTC6h 30m
2026-05-20 ACA809 AMS → YYZ May 20, 13:45 UTCMay 20, 21:50 UTC8h 5m
2026-05-20 ACA808 YYZ → AMS May 20, 05:00 UTCMay 20, 11:40 UTC6h 40m
2026-05-20 ACA895 DUB → YYZ May 20, 01:15 UTCMay 20, 02:10 UTC55m
2026-05-19 ACA865 LHR → YUL May 19, 13:35 UTCMay 19, 14:45 UTC1h 10m
2026-05-19 ACA865 LHR → YUL May 19, 13:30 UTCMay 19, 20:10 UTC6h 40m
2026-05-19 ACA864 YUL → LHR May 19, 02:25 UTCMay 19, 08:50 UTC6h 25m
2026-05-18 ACA326 YYC → YUL May 18, 20:35 UTCMay 19, 00:05 UTC3h 30m
2026-05-18 ACA851 LHR → YYC May 18, 09:35 UTCMay 18, 18:00 UTC8h 25m
2026-05-18 ACA856 YYZ → LHR May 18, 00:35 UTCMay 18, 07:10 UTC6h 35m
2026-05-17 ACA857 LHR → YYZ May 17, 13:31 UTCMay 17, 20:50 UTC7h 20m
2026-05-17 ACA850 YYC → LHR May 17, 02:10 UTCMay 17, 10:30 UTC8h 20m
2026-05-16 ACA323 YUL → YYC May 16, 18:05 UTCMay 16, 22:10 UTC4h 5m
2026-05-16 ACA833 BRU → YUL May 16, 08:16 UTCMay 16, 15:20 UTC7h 5m
2026-05-15 ACA832 YUL → BRU May 15, 22:53 UTCMay 16, 05:03 UTC6h 10m
2026-05-15 ACA832 YUL → BRU May 15, 22:55 UTCMay 16, 05:15 UTC6h 20m
2026-05-15 ACA813 LIS → YUL May 15, 18:35 UTCMay 15, 18:40 UTC5m
2026-05-15 ACA813 LIS → YUL May 15, 11:30 UTCMay 15, 12:05 UTC35m
2026-05-15 ACA813 LIS → YUL May 15, 11:30 UTCMay 15, 18:20 UTC6h 50m
2026-05-15 ACA812 YUL → LIS May 15, 02:00 UTCMay 15, 07:45 UTC5h 45m
2026-05-14 ACA1403 HUX → YVR May 14, 18:55 UTCMay 14, 22:30 UTC3h 35m
2026-05-14 ACA1400 YYZ → VRA May 14, 13:01 UTCMay 14, 17:05 UTC4h 5m
2026-05-13 ACA815 BCN → YYZ May 13, 09:50 UTCMay 13, 17:00 UTC7h 10m
2026-05-13 ACA815 BCN → YYZ May 13, 09:46 UTCMay 13, 17:28 UTC7h 42m
2026-05-13 ACA814 YYZ → BCN May 13, 00:20 UTCMay 13, 01:30 UTC1h 10m
2026-05-13 ACA814 YYZ → BCN May 13, 00:20 UTCMay 13, 07:25 UTC7h 5m
2026-05-12 ACA667 YHZ → YUL May 12, 21:05 UTCMay 12, 22:10 UTC1h 5m
2026-05-12 ACA664 YUL → YHZ May 12, 17:45 UTCMay 12, 18:50 UTC1h 5m
2026-05-12 ACA867 LHR → YUL May 12, 08:55 UTCMay 12, 15:50 UTC6h 55m
2026-05-12 ACA888 YYZ → FCO May 12, 04:10 UTCMay 12, 05:40 UTC1h 30m
2026-05-11 ACA888 YYZ → FCO May 11, 23:27 UTCMay 12, 05:21 UTC5h 54m
2026-05-11 ACA889 LHR → YOW May 11, 09:10 UTCMay 11, 16:05 UTC6h 55m
2026-05-10 ACA866 YUL → LHR May 10, 23:00 UTCMay 11, 05:10 UTC6h 10m
2026-05-10 ACA895 DUB → YYZ May 10, 10:40 UTCMay 10, 18:15 UTC7h 35m
2026-05-10 ACA894 YUL → MXP May 10, 01:04 UTCMay 10, 08:15 UTC7h 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-GFAH page for operator, model, and routing details .

Mode-S C051E4 frequently asked

What is Mode-S code C051E4?
C051E4 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GFAH.
Where is Mode-S C051E4 registered?
Mode-S code C051E4 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C051E4 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C051E4, octal 60050744, decimal 12,603,876.
What flights does C051E4 operate?
Mode-S C051E4 has broadcast 20 distinct callsigns, including ACA813, ACA895, ACA865, ACA864, ACA812.