Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

C023C9

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FNOI · BOEING 787-9 Dreamliner · operated by Air Canada

Hex
C023C9
Octal
60021711
Decimal
12,592,073
Country
CA
Tail
C-FNOI
Type
B789
No current signal · last broadcast 46m ago
Flights observed
253
Distinct callsigns
20
Country
CA
Last broadcast
46m ago

Last known position

Most recent position reported by Mode-S C023C9.

Country allocation

The ICAO 24-bit address C023C9 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
ACA025 - 15 2026-07-11
ACA3 - 12 2026-07-13
ACA026 - 12 2026-07-12
ACA7 Air Canada 11 2026-06-25
ACA64 - 10 2026-07-01
ACA63 - 10 2026-06-30
ACA029 Air Canada 10 2026-05-07
ACA8 - 8 2026-06-26
ACA62 Air Canada 8 2026-07-05
ACA61 - 8 2026-07-04
ACA4 - 7 2026-07-13
ACA839 - 6 2026-07-10
ACA303 - 6 2026-06-24
ACA881 Air Canada 5 2026-05-26
ACA838 - 5 2026-07-09
ACA801 Air Canada 5 2026-06-10
ACA23 - 5 2026-07-01
ACA918 Air Canada 4 2026-06-09
ACA9 - 4 2026-06-14
ACA855 - 4 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 ACA3 - Jul 13, 20:35 UTCJul 14, 05:50 UTC9h 15m
2026-07-13 ACA4 NRT → YVR Jul 13, 10:20 UTCJul 13, 18:45 UTC8h 25m
2026-07-12 ACA3 - Jul 12, 23:30 UTCJul 13, 08:35 UTC9h 5m
2026-07-12 ACA3 YVR → NRT Jul 12, 23:28 UTCJul 13, 08:19 UTC8h 51m
2026-07-12 ACA026 - Jul 12, 06:01 UTCJul 12, 21:25 UTC15h 25m
2026-07-11 ACA025 - Jul 11, 22:20 UTCJul 12, 21:25 UTC23h 5m
2026-07-11 ACA025 - Jul 11, 21:50 UTCJul 12, 13:35 UTC15h 45m
2026-07-11 ACA4 - Jul 11, 08:01 UTCJul 11, 16:25 UTC8h 25m
2026-07-10 ACA3 YVR → NRT Jul 10, 20:38 UTCJul 11, 05:25 UTC8h 47m
2026-07-10 ACA3 YVR → NRT Jul 10, 20:40 UTCJul 11, 05:35 UTC8h 55m
2026-07-10 ACA839 FRA → YVR Jul 10, 08:30 UTCJul 10, 17:45 UTC9h 15m
2026-07-10 ACA839 - Jul 10, 08:30 UTCJul 10, 10:15 UTC1h 45m
2026-07-09 ACA838 YVR → FRA Jul 9, 21:26 UTCJul 10, 06:20 UTC8h 54m
2026-07-09 ACA838 YVR → FRA Jul 9, 21:30 UTCJul 10, 06:25 UTC8h 55m
2026-07-09 ACA839 FRA → YVR Jul 9, 08:40 UTCJul 9, 18:00 UTC9h 20m
2026-07-08 ACA838 YVR → FRA Jul 8, 21:25 UTCJul 9, 06:35 UTC9h 10m
2026-07-08 ACA026 - Jul 8, 09:10 UTCJul 8, 18:15 UTC9h 5m
2026-07-08 ACA026 - Jul 8, 03:35 UTCJul 8, 18:25 UTC14h 50m
2026-07-07 ACA026 - Jul 7, 22:20 UTCJul 8, 18:25 UTC20h 5m
2026-07-07 ACA025 YVR → PVG Jul 7, 20:20 UTCJul 8, 18:25 UTC22h 5m
2026-07-07 ACA025 YVR → PVG Jul 7, 18:55 UTCJul 7, 22:55 UTC4h 0m
2026-07-07 ACA025 YVR → PVG Jul 7, 18:55 UTCJul 8, 05:57 UTC11h 2m
2026-07-07 ACA4 - Jul 7, 08:05 UTCJul 7, 15:55 UTC7h 50m
2026-07-06 ACA3 YVR → NRT Jul 6, 20:46 UTCJul 7, 05:34 UTC8h 48m
2026-07-06 ACA3 - Jul 6, 20:50 UTCJul 7, 05:45 UTC8h 55m
2026-07-06 ACA107 YYZ → YVR Jul 6, 13:40 UTCJul 6, 18:05 UTC4h 25m
2026-07-06 ACA107 YYZ → YVR Jul 6, 13:37 UTCJul 6, 17:55 UTC4h 18m
2026-07-05 ACA62 ICN → YYZ Jul 5, 12:25 UTCJul 6, 01:05 UTC12h 40m
2026-07-04 ACA61 YYZ → ICN Jul 4, 21:10 UTCJul 5, 10:15 UTC13h 5m
2026-07-04 ACA61 YYZ → ICN Jul 4, 21:07 UTCJul 5, 10:21 UTC13h 14m
2026-07-04 ACA855 - Jul 4, 11:15 UTCJul 4, 18:35 UTC7h 20m
2026-07-04 ACA852 YYZ → LHR Jul 4, 02:50 UTCJul 4, 09:10 UTC6h 20m
2026-07-03 ACA112 YVR → YYZ Jul 3, 19:20 UTCJul 3, 23:10 UTC3h 50m
2026-07-03 ACA4 - Jul 3, 08:05 UTCJul 3, 15:55 UTC7h 50m
2026-07-02 ACA3 YVR → NRT Jul 2, 20:20 UTCJul 3, 05:35 UTC9h 15m
2026-07-02 ACA24 KIX → YVR Jul 2, 09:15 UTCJul 2, 17:30 UTC8h 15m
2026-07-02 ACA24 KIX → YVR Jul 2, 09:14 UTCJul 2, 17:16 UTC8h 2m
2026-07-01 ACA23 - Jul 1, 20:55 UTCJul 2, 07:05 UTC10h 10m
2026-07-01 ACA23 YVR → KIX Jul 1, 20:53 UTCJul 2, 06:59 UTC10h 6m
2026-07-01 ACA64 ICN → YVR Jul 1, 08:55 UTCJul 1, 18:00 UTC9h 5m
2026-06-30 ACA63 - Jun 30, 20:25 UTCJul 1, 06:55 UTC10h 30m
2026-06-30 ACA4 - Jun 30, 08:15 UTCJun 30, 15:55 UTC7h 40m
2026-06-29 ACA3 - Jun 29, 20:40 UTCJun 30, 06:00 UTC9h 21m
2026-06-29 ACA24 KIX → YVR Jun 29, 09:25 UTCJun 29, 17:55 UTC8h 30m
2026-06-28 ACA23 - Jun 28, 21:20 UTCJun 29, 07:30 UTC10h 10m
2026-06-28 ACA026 - Jun 28, 08:55 UTCJun 28, 17:50 UTC8h 55m
2026-06-28 ACA026 - Jun 28, 02:49 UTCJun 28, 17:50 UTC15h 0m
2026-06-27 ACA026 - Jun 27, 20:19 UTCJun 28, 17:50 UTC21h 30m
2026-06-27 ACA025 YVR → PVG Jun 27, 18:29 UTCJun 28, 04:44 UTC10h 15m
2026-06-27 ACA025 YVR → PVG Jun 27, 18:26 UTCJun 28, 05:34 UTC11h 8m

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

Mode-S C023C9 frequently asked

What is Mode-S code C023C9?
C023C9 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FNOI.
Where is Mode-S C023C9 registered?
Mode-S code C023C9 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C023C9 broadcasting right now?
No active broadcast right now. Last signal was 46m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C023C9, octal 60021711, decimal 12,592,073.
What flights does C023C9 operate?
Mode-S C023C9 has broadcast 20 distinct callsigns, including ACA025, ACA3, ACA026, ACA7, ACA64.