Apparatus

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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
Broadcasting now · callsign ACA312 · 37,000 ft
Flights observed
49
Distinct callsigns
20
Country
CA
Last broadcast
6h ago

Current position

C04FBB is currently broadcasting. Map zoomed to live position.

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
ACA894 Air Canada 4 2026-05-22
ACA867 Air Canada 4 2026-04-15
ACA840 Air Canada 4 2026-05-27
ACA833 Air Canada 4 2026-04-14
ACA895 Air Canada 3 2026-05-24
ACA866 Air Canada 3 2026-04-15
ACA857 Air Canada 3 2026-04-17
ACA901 Air Canada 2 2026-05-24
ACA864 Air Canada 2 2026-04-17
ACA845 Air Canada 2 2026-05-28
ACA822 Air Canada 2 2026-05-22
ACA810 Air Canada 2 2026-04-18
ACA667 Air Canada 2 2026-05-28
ACA664 Air Canada 2 2026-05-28
ACA406 Air Canada 2 2026-05-25
ACA305 Air Canada 2 2026-05-29
ACA900 Air Canada 1 2026-05-24
ACA841 Air Canada 1 2026-05-21
ACA823 Air Canada 1 2026-05-23
ACA811 Air Canada 1 2026-04-18

Recent flights last 49

DateFlightRouteTakeoffLandingDuration
2026-05-29 ACA305 YUL → YVR May 29, 17:05 UTCMay 29, 20:45 UTC3h 40m
2026-05-29 ACA305 YUL → YVR May 29, 17:02 UTCMay 29, 21:48 UTC4h 46m
2026-05-28 ACA667 YHZ → YUL May 28, 20:55 UTCMay 28, 22:05 UTC1h 10m
2026-05-28 ACA664 YUL → YHZ May 28, 18:00 UTCMay 28, 19:05 UTC1h 5m
2026-05-28 ACA845 FRA → YUL May 28, 08:20 UTCMay 28, 10:20 UTC2h 0m
2026-05-28 ACA845 FRA → YUL May 28, 08:16 UTCMay 28, 15:07 UTC6h 51m
2026-05-27 ACA840 YYZ → FRA May 27, 21:15 UTCMay 27, 22:15 UTC1h 0m
2026-05-27 ACA840 YYZ → FRA May 27, 21:15 UTCMay 28, 04:35 UTC7h 20m
2026-05-26 ACA2394 LAX → YYZ May 26, 16:40 UTCMay 27, 00:44 UTC8h 5m
2026-05-26 ACA427 YUL → YYZ May 26, 01:30 UTCMay 26, 02:19 UTC50m
2026-05-25 ACA667 YHZ → YUL May 25, 20:34 UTCMay 25, 21:54 UTC1h 20m
2026-05-25 ACA664 YUL → YHZ May 25, 17:55 UTCMay 25, 18:50 UTC55m
2026-05-25 ACA406 YYZ → YUL May 25, 14:22 UTCMay 25, 15:12 UTC50m
2026-05-25 ACA406 YYZ → YUL May 25, 14:25 UTCMay 25, 14:45 UTC20m
2026-05-24 ACA895 DUB → YYZ May 24, 21:00 UTCMay 24, 21:50 UTC50m
2026-05-24 ACA895 DUB → YYZ May 24, 20:58 UTCMay 24, 21:55 UTC57m
2026-05-24 ACA901 FLL → YYZ May 24, 10:49 UTCMay 24, 17:31 UTC6h 42m
2026-05-24 ACA901 FLL → YYZ May 24, 10:50 UTCMay 24, 17:45 UTC6h 55m
2026-05-24 ACA900 YYZ → FLL May 24, 01:50 UTCMay 24, 07:55 UTC6h 5m
2026-05-23 ACA823 BCN → YUL May 23, 10:55 UTCMay 23, 18:30 UTC7h 36m
2026-05-22 ACA822 YYT → LHR May 22, 22:55 UTCMay 23, 05:25 UTC6h 29m
2026-05-22 ACA822 YYT → LHR May 22, 22:52 UTCMay 23, 05:19 UTC6h 27m
2026-05-22 ACA895 DUB → YYZ May 22, 10:50 UTCMay 22, 18:25 UTC7h 35m
2026-05-22 ACA894 YUL → MXP May 22, 01:45 UTCMay 22, 07:20 UTC5h 35m
2026-05-22 ACA894 YUL → MXP May 22, 00:45 UTCMay 22, 01:40 UTC55m
2026-05-21 ACA894 YUL → MXP May 21, 22:05 UTCMay 21, 22:45 UTC40m
2026-05-21 ACA894 YUL → MXP May 21, 22:02 UTCMay 21, 22:44 UTC42m
2026-05-21 ACA841 FRA → YYZ May 21, 08:30 UTCMay 21, 16:45 UTC8h 15m
2026-05-20 ACA840 YYZ → FRA May 20, 22:15 UTCMay 21, 04:45 UTC6h 30m
2026-05-20 ACA840 YYZ → FRA May 20, 22:14 UTCMay 21, 04:59 UTC6h 45m
2026-04-18 ACA811 LIS → YYZ Apr 18, 13:40 UTCApr 18, 22:40 UTC9h 0m
2026-04-18 ACA810 YYZ → LIS Apr 18, 08:50 UTCApr 18, 09:20 UTC30m
2026-04-18 ACA810 YYZ → LIS Apr 18, 03:20 UTCApr 18, 11:20 UTC8h 0m
2026-04-17 ACA857 LHR → YYZ Apr 17, 19:50 UTCApr 17, 20:55 UTC1h 5m
2026-04-17 ACA857 LHR → YYZ Apr 17, 15:45 UTCApr 17, 16:00 UTC15m
2026-04-17 ACA857 LHR → YYZ Apr 17, 13:40 UTCApr 17, 14:35 UTC55m
2026-04-17 ACA864 YUL → LHR Apr 17, 07:20 UTCApr 17, 08:55 UTC1h 35m
2026-04-17 ACA864 YUL → LHR Apr 17, 02:23 UTCApr 17, 08:30 UTC6h 7m
2026-04-15 ACA867 LHR → YUL Apr 15, 15:05 UTCApr 15, 15:25 UTC20m
2026-04-15 ACA867 LHR → YUL Apr 15, 14:35 UTCApr 15, 14:55 UTC19m
2026-04-15 ACA867 LHR → YUL Apr 15, 09:00 UTCApr 15, 09:40 UTC40m
2026-04-15 ACA867 LHR → YUL Apr 15, 08:45 UTCApr 15, 08:55 UTC10m
2026-04-15 ACA866 YUL → LHR Apr 15, 05:00 UTCApr 15, 05:55 UTC55m
2026-04-15 ACA866 YUL → LHR Apr 15, 04:35 UTCApr 15, 04:50 UTC15m
2026-04-14 ACA866 YUL → LHR Apr 14, 23:30 UTCApr 15, 00:10 UTC40m
2026-04-14 ACA833 BRU → YUL Apr 14, 16:05 UTCApr 14, 16:45 UTC40m
2026-04-14 ACA833 BRU → YUL Apr 14, 11:50 UTCApr 14, 12:10 UTC20m
2026-04-14 ACA833 BRU → YUL Apr 14, 09:10 UTCApr 14, 10:40 UTC1h 30m
2026-04-14 ACA833 BRU → YUL Apr 14, 08:05 UTCApr 14, 15:35 UTC7h 30m

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?
Yes. Mode-S C04FBB is currently airborne.
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 ACA894, ACA867, ACA840, ACA833, ACA895.