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sensors Mode-S transponder

C04FBB

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C04FBB
Octal
60047673
Decimal
12,603,323
Country
CA
Tail
C-GEFA
Type
A333
No current signal · last broadcast Jul 26, 22:05 UTC
Flights observed
217
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 22:05 UTC

Last known position

Most recent position reported by Mode-S C04FBB.

Country allocation

The ICAO 24-bit address C04FBB 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
ACA841 - 17 2026-07-19
ACA840 Air Canada 17 2026-07-18
ACA894 Air Canada 9 2026-07-20
ACA836 - 9 2026-07-14
ACA823 Air Canada 9 2026-07-23
ACA822 Air Canada 9 2026-07-22
ACA895 Air Canada 8 2026-07-26
ACA867 - 6 2026-07-22
ACA845 Air Canada 5 2026-06-28
ACA837 - 5 2026-07-15
ACA835 - 5 2026-07-21
ACA824 - 5 2026-07-03
ACA814 - 5 2026-07-05
ACA907 - 4 2026-07-07
ACA903 Air Canada 4 2026-07-26
ACA866 Air Canada 4 2026-07-21
ACA834 Air Canada 4 2026-07-20
ACA833 Air Canada 4 2026-04-14
ACA828 Air Canada 4 2026-07-25
ACA825 Air Canada 4 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ACA903 TPA → YYZ Jul 26, 14:30 UTCJul 26, 22:00 UTC7h 30m
2026-07-26 ACA902 YYZ → TPA Jul 26, 03:40 UTCJul 26, 10:50 UTC7h 11m
2026-07-26 ACA895 DUB → YYZ Jul 26, 00:15 UTCJul 26, 01:00 UTC45m
2026-07-25 ACA805 CPH → YUL Jul 25, 17:55 UTCJul 25, 18:40 UTC45m
2026-07-25 ACA805 CPH → YUL Jul 25, 11:30 UTCJul 25, 17:50 UTC6h 20m
2026-07-25 ACA828 YYZ → CPH Jul 25, 02:45 UTCJul 25, 04:45 UTC2h 0m
2026-07-25 ACA828 YYZ → CPH Jul 25, 02:44 UTCJul 25, 09:32 UTC6h 48m
2026-07-24 ACA903 TPA → YYZ Jul 24, 11:10 UTCJul 24, 18:50 UTC7h 40m
2026-07-24 ACA902 YYZ → TPA Jul 24, 01:55 UTCJul 24, 08:40 UTC6h 45m
2026-07-23 ACA9XC YUL → YYZ Jul 23, 21:45 UTCJul 23, 22:35 UTC50m
2026-07-23 ACA823 BCN → YUL Jul 23, 10:40 UTCJul 23, 18:00 UTC7h 20m
2026-07-22 ACA822 YYT → LHR Jul 22, 23:15 UTCJul 23, 06:05 UTC6h 50m
2026-07-22 ACA867 - Jul 22, 14:15 UTCJul 22, 15:45 UTC1h 30m
2026-07-22 ACA867 LHR → YUL Jul 22, 08:43 UTCJul 22, 15:25 UTC6h 42m
2026-07-21 ACA866 YUL → LHR Jul 21, 23:35 UTCJul 22, 05:25 UTC5h 50m
2026-07-21 ACA835 - Jul 21, 11:10 UTCJul 21, 17:50 UTC6h 40m
2026-07-21 ACA835 MAD → YUL Jul 21, 11:08 UTCJul 21, 17:34 UTC6h 26m
2026-07-20 ACA834 YYZ → BRU Jul 20, 22:15 UTCJul 21, 04:40 UTC6h 24m
2026-07-20 ACA895 MXP → YUL Jul 20, 10:54 UTCJul 20, 18:26 UTC7h 32m
2026-07-20 ACA895 - Jul 20, 10:55 UTCJul 20, 12:45 UTC1h 50m
2026-07-20 ACA894 YUL → MXP Jul 20, 01:15 UTCJul 20, 08:30 UTC7h 15m
2026-07-20 ACA894 YUL → MXP Jul 20, 01:11 UTCJul 20, 08:17 UTC7h 6m
2026-07-19 ACA894 YYZ → YUL Jul 19, 21:45 UTCJul 19, 22:40 UTC55m
2026-07-19 ACA841 FRA → YYZ Jul 19, 08:21 UTCJul 19, 16:12 UTC7h 51m
2026-07-19 ACA841 FRA → YYZ Jul 19, 08:20 UTCJul 19, 16:15 UTC7h 55m
2026-07-18 ACA840 YYZ → FRA Jul 18, 21:10 UTCJul 19, 04:20 UTC7h 10m
2026-07-18 ACA840 YYZ → FRA Jul 18, 21:10 UTCJul 18, 22:45 UTC1h 35m
2026-07-18 ACA841 FRA → YYZ Jul 18, 08:45 UTCJul 18, 16:40 UTC7h 55m
2026-07-17 ACA840 YYZ → FRA Jul 17, 20:55 UTCJul 18, 04:10 UTC7h 16m
2026-07-17 ACA840 YYZ → FRA Jul 17, 20:54 UTCJul 18, 04:04 UTC7h 10m
2026-07-17 ACA841 FRA → YYZ Jul 17, 09:10 UTCJul 17, 16:49 UTC7h 40m
2026-07-16 ACA840 YYZ → FRA Jul 16, 21:05 UTCJul 17, 04:39 UTC7h 35m
2026-07-16 ACA841 FRA → YYZ Jul 16, 08:20 UTCJul 16, 16:00 UTC7h 40m
2026-07-15 ACA840 - Jul 15, 21:10 UTCJul 16, 04:25 UTC7h 15m
2026-07-15 ACA837 - Jul 15, 10:10 UTCJul 15, 18:15 UTC8h 5m
2026-07-14 ACA836 - Jul 14, 22:05 UTCJul 14, 22:45 UTC39m
2026-07-14 ACA836 YYZ → MUC Jul 14, 22:05 UTCJul 15, 05:26 UTC7h 21m
2026-07-14 ACA841 FRA → YYZ Jul 14, 08:30 UTCJul 14, 16:05 UTC7h 35m
2026-07-14 ACA841 FRA → YYZ Jul 14, 08:26 UTCJul 14, 16:01 UTC7h 35m
2026-07-13 ACA840 YYZ → FRA Jul 13, 20:55 UTCJul 14, 04:20 UTC7h 25m
2026-07-13 ACA841 FRA → YYZ Jul 13, 08:48 UTCJul 13, 16:28 UTC7h 40m
2026-07-13 ACA841 FRA → YYZ Jul 13, 08:50 UTCJul 13, 16:40 UTC7h 50m
2026-07-12 ACA840 YYZ → FRA Jul 12, 21:10 UTCJul 13, 04:25 UTC7h 15m
2026-07-12 ACA829 CPH → YYZ Jul 12, 11:30 UTCJul 12, 19:05 UTC7h 35m
2026-07-12 ACA828 - Jul 12, 01:55 UTCJul 12, 09:05 UTC7h 10m
2026-07-11 ACA837 - Jul 11, 10:05 UTCJul 11, 18:25 UTC8h 20m
2026-07-10 ACA836 YYZ → MUC Jul 10, 21:52 UTCJul 11, 05:02 UTC7h 10m
2026-07-10 ACA836 - Jul 10, 21:55 UTCJul 11, 05:15 UTC7h 20m
2026-07-10 ACA841 FRA → YYZ Jul 10, 08:15 UTCJul 10, 16:30 UTC8h 15m
2026-07-10 ACA841 FRA → YYZ Jul 10, 08:14 UTCJul 10, 16:21 UTC8h 7m

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

Mode-S C04FBB frequently asked

What is Mode-S code C04FBB?
C04FBB is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GEFA.
Where is Mode-S C04FBB registered?
Mode-S code C04FBB is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C04FBB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C04FBB, octal 60047673, decimal 12,603,323.
What flights does C04FBB operate?
Mode-S C04FBB has broadcast 20 distinct callsigns, including ACA841, ACA840, ACA894, ACA836, ACA823.