Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

C023AA

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FNND · BOEING 777-200LR · operated by Air Canada

Hex
C023AA
Octal
60021652
Decimal
12,592,042
Country
CA
Tail
C-FNND
Type
B77L
No current signal · last broadcast 58m ago
Flights observed
228
Distinct callsigns
20
Country
CA
Last broadcast
58m ago

Last known position

Most recent position reported by Mode-S C023AA.

Country allocation

The ICAO 24-bit address C023AA 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
ACA34 - 69 2026-07-06
ACA33 Air Canada 66 2026-07-05
ACA42 - 17 2026-07-08
ACA43 - 16 2026-07-08
ACA886 - 8 2026-07-12
ACA49 Air Canada 8 2026-05-08
ACA48 Air Canada 8 2026-05-22
ACA887 - 5 2026-07-13
ACA880 - 4 2026-07-14
ACA881 Air Canada 3 2026-06-16
ACA852 - 3 2026-06-28
ACA3XC - 3 2026-06-11
ACA891 - 2 2026-07-10
ACA855 - 2 2026-06-28
ACA821 - 2 2026-07-07
ACA2410 Air Canada 2 2026-04-26
ACA987 Air Canada 1 2026-04-22
ACA897 Air Canada 1 2026-06-10
ACA896 Air Canada 1 2026-06-09
ACA890 - 1 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ACA880 - Jul 14, 00:25 UTCJul 14, 02:20 UTC1h 55m
2026-07-13 ACA887 VIE → YYZ Jul 13, 08:50 UTCJul 13, 17:15 UTC8h 25m
2026-07-12 ACA886 YYZ → VIE Jul 12, 22:35 UTCJul 13, 06:30 UTC7h 55m
2026-07-12 ACA886 YYZ → VIE Jul 12, 22:32 UTCJul 13, 06:17 UTC7h 45m
2026-07-12 ACA887 VIE → YYZ Jul 12, 08:45 UTCJul 12, 17:10 UTC8h 25m
2026-07-11 ACA886 YYZ → VIE Jul 11, 22:20 UTCJul 12, 06:05 UTC7h 45m
2026-07-11 ACA886 YYZ → VIE Jul 11, 22:19 UTCJul 12, 06:05 UTC7h 46m
2026-07-11 ACA887 VIE → YYZ Jul 11, 08:45 UTCJul 11, 17:15 UTC8h 30m
2026-07-11 ACA887 VIE → YYZ Jul 11, 08:43 UTCJul 11, 17:09 UTC8h 26m
2026-07-10 ACA886 YYZ → VIE Jul 10, 22:15 UTCJul 11, 05:50 UTC7h 35m
2026-07-10 ACA891 - Jul 10, 10:50 UTCJul 10, 19:45 UTC8h 55m
2026-07-10 ACA891 FCO → YYZ Jul 10, 10:46 UTCJul 10, 19:29 UTC8h 43m
2026-07-10 ACA890 - Jul 10, 00:35 UTCJul 10, 08:25 UTC7h 50m
2026-07-08 ACA43 DEL → YYZ Jul 8, 17:27 UTCJul 9, 08:41 UTC15h 14m
2026-07-08 ACA43 - Jul 8, 17:30 UTCJul 8, 18:15 UTC45m
2026-07-08 ACA42 - Jul 8, 00:05 UTCJul 8, 14:00 UTC13h 55m
2026-07-07 ACA821 - Jul 7, 18:15 UTCJul 7, 19:30 UTC1h 15m
2026-07-07 ACA821 - Jul 7, 11:55 UTCJul 7, 18:10 UTC6h 15m
2026-07-07 ACA820 YYZ → BCN Jul 7, 00:10 UTCJul 7, 07:15 UTC7h 5m
2026-07-06 ACA34 YVR → YYZ Jul 6, 16:15 UTCJul 6, 20:05 UTC3h 50m
2026-07-06 ACA34 - Jul 6, 00:00 UTCJul 6, 00:30 UTC30m
2026-07-05 ACA34 SYD → YVR Jul 5, 23:59 UTCJul 6, 13:51 UTC13h 52m
2026-07-05 ACA33 YVR → SYD Jul 5, 06:40 UTCJul 5, 21:20 UTC14h 40m
2026-07-04 ACA33 YVR → SYD Jul 4, 23:45 UTCJul 5, 04:15 UTC4h 30m
2026-07-04 ACA34 YVR → YYZ Jul 4, 16:10 UTCJul 4, 19:55 UTC3h 45m
2026-07-03 ACA34 SYD → YVR Jul 3, 23:50 UTCJul 4, 13:30 UTC13h 40m
2026-07-03 ACA33 YVR → SYD Jul 3, 06:15 UTCJul 3, 21:15 UTC15h 0m
2026-07-02 ACA33 YVR → SYD Jul 2, 23:25 UTCJul 3, 03:50 UTC4h 25m
2026-07-02 ACA34 YVR → YYZ Jul 2, 16:15 UTCJul 2, 20:00 UTC3h 45m
2026-07-01 ACA34 SYD → YVR Jul 1, 23:30 UTCJul 2, 13:20 UTC13h 50m
2026-07-01 ACA33 YVR → SYD Jul 1, 06:05 UTCJul 1, 20:40 UTC14h 35m
2026-06-30 ACA33 YVR → SYD Jun 30, 23:30 UTCJul 1, 03:55 UTC4h 25m
2026-06-30 ACA34 YVR → YYZ Jun 30, 16:25 UTCJun 30, 20:15 UTC3h 50m
2026-06-30 ACA34 SYD → YVR Jun 30, 00:04 UTCJun 30, 13:50 UTC13h 46m
2026-06-29 ACA33 YVR → SYD Jun 29, 06:24 UTCJun 29, 21:14 UTC14h 50m
2026-06-28 ACA33 YVR → SYD Jun 28, 23:50 UTCJun 29, 04:04 UTC4h 15m
2026-06-28 ACA855 - Jun 28, 11:25 UTCJun 28, 18:19 UTC6h 55m
2026-06-28 ACA852 YYZ → LHR Jun 28, 02:34 UTCJun 28, 08:38 UTC6h 4m
2026-06-28 ACA852 - Jun 28, 02:34 UTCJun 28, 04:20 UTC1h 45m
2026-06-27 ACA786 LAX → YYZ Jun 27, 20:39 UTCJun 28, 00:30 UTC3h 50m
2026-06-27 ACA785 - Jun 27, 12:55 UTCJun 27, 17:34 UTC4h 40m
2026-06-26 ACA43 - Jun 26, 17:54 UTCJun 27, 08:55 UTC15h 0m
2026-06-26 ACA42 YYZ → DEL Jun 26, 00:35 UTCJun 26, 14:19 UTC13h 45m
2026-06-24 ACA43 DEL → YYZ Jun 24, 17:50 UTCJun 25, 08:55 UTC15h 5m
2026-06-24 ACA42 YYZ → DEL Jun 24, 00:10 UTCJun 24, 13:30 UTC13h 20m
2026-06-24 ACA42 - Jun 24, 00:09 UTCJun 24, 00:30 UTC20m
2026-06-23 ACA34 - Jun 23, 16:54 UTCJun 23, 20:49 UTC3h 55m
2026-06-22 ACA34 SYD → YVR Jun 22, 23:45 UTCJun 23, 13:39 UTC13h 55m
2026-06-22 ACA34 SYD → YVR Jun 22, 23:43 UTCJun 23, 13:30 UTC13h 47m
2026-06-22 ACA33 YVR → SYD Jun 22, 06:29 UTCJun 22, 21:19 UTC14h 50m

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

Mode-S C023AA frequently asked

What is Mode-S code C023AA?
C023AA is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FNND.
Where is Mode-S C023AA registered?
Mode-S code C023AA is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C023AA broadcasting right now?
No active broadcast right now. Last signal was 58m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C023AA, octal 60021652, decimal 12,592,042.
What flights does C023AA operate?
Mode-S C023AA has broadcast 20 distinct callsigns, including ACA34, ACA33, ACA42, ACA43, ACA886.