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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 2h ago
Flights observed
178
Distinct callsigns
20
Country
CA
Last broadcast
2h ago

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
ACA840 - 11 2026-07-13
ACA841 - 10 2026-07-13
ACA823 - 8 2026-07-06
ACA822 - 8 2026-07-05
ACA836 - 7 2026-07-10
ACA894 - 6 2026-06-15
ACA895 - 5 2026-06-23
ACA845 Air Canada 5 2026-06-28
ACA824 - 5 2026-07-03
ACA814 - 5 2026-07-05
ACA907 - 4 2026-07-07
ACA867 Air Canada 4 2026-04-15
ACA837 - 4 2026-07-11
ACA833 Air Canada 4 2026-04-14
ACA825 Air Canada 4 2026-06-29
ACA815 - 4 2026-07-05
ACA929 Air Canada 3 2026-06-22
ACA906 - 3 2026-07-07
ACA905 Air Canada 3 2026-06-10
ACA866 Air Canada 3 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-09 ACA840 YYZ → FRA Jul 9, 21:05 UTCJul 10, 04:05 UTC7h 0m
2026-07-09 ACA837 - Jul 9, 10:20 UTCJul 9, 18:55 UTC8h 35m
2026-07-08 ACA836 YYZ → MUC Jul 8, 21:52 UTCJul 9, 05:17 UTC7h 25m
2026-07-08 ACA836 - Jul 8, 21:55 UTCJul 9, 05:25 UTC7h 30m
2026-07-08 ACA935 PRG → YYZ Jul 8, 11:00 UTCJul 8, 19:20 UTC8h 20m
2026-07-08 ACA935 PRG → YYZ Jul 8, 11:00 UTCJul 8, 12:45 UTC1h 45m
2026-07-08 ACA934 YYZ → PRG Jul 8, 01:10 UTCJul 8, 08:55 UTC7h 45m
2026-07-07 ACA907 - Jul 7, 12:55 UTCJul 7, 21:25 UTC8h 30m
2026-07-07 ACA907 FCO → YYZ Jul 7, 12:52 UTCJul 7, 21:20 UTC8h 28m
2026-07-07 ACA906 - Jul 7, 02:30 UTCJul 7, 10:35 UTC8h 5m
2026-07-06 ACA489 YUL → YYZ Jul 6, 22:56 UTCJul 6, 23:40 UTC44m
2026-07-06 ACA489 YUL → YYZ Jul 6, 23:00 UTCJul 6, 23:50 UTC50m
2026-07-06 ACA823 BCN → YUL Jul 6, 10:50 UTCJul 6, 18:20 UTC7h 30m
2026-07-05 ACA822 YUL → BCN Jul 5, 23:10 UTCJul 6, 06:05 UTC6h 55m
2026-07-05 ACA822 YUL → BCN Jul 5, 23:08 UTCJul 6, 05:54 UTC6h 46m
2026-07-05 ACA815 - Jul 5, 10:25 UTCJul 5, 18:05 UTC7h 40m
2026-07-05 ACA814 YUL → NCE Jul 5, 01:20 UTCJul 5, 08:10 UTC6h 50m
2026-07-03 ACA835 MAD → YUL Jul 3, 11:15 UTCJul 3, 18:35 UTC7h 20m
2026-07-03 ACA824 YYZ → MAD Jul 3, 00:23 UTCJul 3, 07:03 UTC6h 40m
2026-07-03 ACA824 - Jul 3, 00:25 UTCJul 3, 07:10 UTC6h 45m
2026-07-02 ACA841 - Jul 2, 08:15 UTCJul 2, 08:45 UTC30m
2026-07-02 ACA841 FRA → YYZ Jul 2, 08:15 UTCJul 2, 16:16 UTC8h 1m
2026-07-02 ACA840 - Jul 2, 02:00 UTCJul 2, 03:55 UTC1h 55m
2026-07-01 ACA840 - Jul 1, 21:00 UTCJul 1, 22:45 UTC1h 45m
2026-07-01 ACA837 MUC → YYZ Jul 1, 10:15 UTCJul 1, 18:40 UTC8h 25m
2026-06-30 ACA836 YYZ → MUC Jun 30, 22:00 UTCJul 1, 05:40 UTC7h 40m
2026-06-30 ACA836 YYZ → MUC Jun 30, 21:59 UTCJul 1, 05:27 UTC7h 28m
2026-06-30 ACA837 MUC → YYZ Jun 30, 10:05 UTCJun 30, 18:20 UTC8h 15m
2026-06-29 ACA836 YYZ → MUC Jun 29, 22:10 UTCJun 30, 05:30 UTC7h 21m
2026-06-29 ACA825 MAD → YYZ Jun 29, 11:55 UTCJun 29, 18:44 UTC6h 50m
2026-06-29 ACA825 MAD → YYZ Jun 29, 11:51 UTCJun 29, 19:37 UTC7h 46m
2026-06-28 ACA834 - Jun 28, 22:20 UTCJun 29, 04:30 UTC6h 10m
2026-06-28 ACA845 FRA → YUL Jun 28, 15:24 UTCJun 28, 15:29 UTC5m
2026-06-28 ACA845 FRA → YUL Jun 28, 08:14 UTCJun 28, 09:50 UTC1h 35m
2026-06-28 ACA845 FRA → YUL Jun 28, 08:11 UTCJun 28, 15:08 UTC6h 57m
2026-06-27 ACA844 - Jun 27, 20:55 UTCJun 27, 22:20 UTC1h 25m
2026-06-27 ACA844 YUL → FRA Jun 27, 20:54 UTCJun 28, 03:39 UTC6h 45m
2026-06-27 ACA805 CPH → YUL Jun 27, 10:29 UTCJun 27, 17:34 UTC7h 5m
2026-06-27 ACA804 YUL → CPH Jun 27, 00:50 UTCJun 27, 07:34 UTC6h 45m

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 2h ago.
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 ACA840, ACA841, ACA823, ACA822, ACA836.