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sensors Mode-S transponder

C023C8

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C023C8
Octal
60021710
Decimal
12,592,072
Country
CA
Tail
C-FNOH
Type
B789
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
276
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S C023C8.

Country allocation

The ICAO 24-bit address C023C8 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 - 16 2026-07-18
ACA026 Air Canada 14 2026-07-19
ACA90 Air Canada 13 2026-05-29
ACA91 Air Canada 12 2026-05-30
ACA029 Air Canada 11 2026-07-26
ACA23 Air Canada 10 2026-07-19
ACA881 Air Canada 8 2026-04-17
ACA880 Air Canada 8 2026-04-17
ACA839 - 8 2026-07-17
ACA4 Air Canada 7 2026-07-18
ACA921 Air Canada 6 2026-07-25
ACA920 Air Canada 6 2026-07-24
ACA838 - 6 2026-07-16
ACA64 - 6 2026-07-09
ACA61 Air Canada 6 2026-07-22
ACA24 - 6 2026-07-20
ACA030 Air Canada 6 2026-07-21
ACA800 Air Canada 5 2026-07-26
ACA63 - 5 2026-07-08
ACA62 Air Canada 5 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ACA029 YYZ → PEK Jul 26, 21:05 UTCJul 26, 21:40 UTC35m
2026-07-26 ACA919 MIA → YYZ Jul 26, 09:00 UTCJul 26, 09:50 UTC50m
2026-07-26 ACA919 MIA → YYZ Jul 26, 09:00 UTCJul 26, 17:28 UTC8h 28m
2026-07-26 ACA800 YYZ → DUB Jul 26, 01:05 UTCJul 26, 06:55 UTC5h 51m
2026-07-25 ACA921 PBI → YYZ Jul 25, 12:50 UTCJul 25, 22:25 UTC9h 35m
2026-07-25 ACA922 YYZ → MCO Jul 25, 01:49 UTCJul 25, 09:55 UTC8h 6m
2026-07-25 ACA922 YYZ → MCO Jul 25, 01:50 UTCJul 25, 02:00 UTC10m
2026-07-24 ACA923 MCO → YYZ Jul 24, 13:10 UTCJul 24, 22:25 UTC9h 15m
2026-07-24 ACA920 YYZ → PBI Jul 24, 01:35 UTCJul 24, 10:15 UTC8h 40m
2026-07-23 ACA62 ICN → YYZ Jul 23, 10:45 UTCJul 23, 23:00 UTC12h 15m
2026-07-22 ACA61 YYZ → ICN Jul 22, 18:40 UTCJul 23, 08:55 UTC14h 15m
2026-07-22 ACA61 YYZ → ICN Jul 22, 18:38 UTCJul 23, 08:43 UTC14h 5m
2026-07-21 ACA918 YYZ → MIA Jul 21, 23:45 UTCJul 22, 16:35 UTC16h 50m
2026-07-21 ACA030 PEK → YVR Jul 21, 12:00 UTCJul 21, 13:50 UTC1h 50m
2026-07-21 ACA030 PEK → YVR Jul 21, 11:07 UTCJul 21, 21:32 UTC10h 25m
2026-07-20 ACA029 YYZ → PEK Jul 20, 22:05 UTCJul 21, 21:30 UTC23h 25m
2026-07-20 ACA029 YYZ → PEK Jul 20, 21:05 UTCJul 21, 08:43 UTC11h 38m
2026-07-20 ACA029 YYZ → PEK Jul 20, 21:05 UTCJul 21, 00:55 UTC3h 49m
2026-07-20 ACA24 KIX → YVR Jul 20, 09:15 UTCJul 20, 18:15 UTC9h 0m
2026-07-19 ACA23 YVR → KIX Jul 19, 21:15 UTCJul 20, 07:05 UTC9h 50m
2026-07-19 ACA026 PVG → YVR Jul 19, 03:00 UTCJul 19, 18:35 UTC15h 35m
2026-07-18 ACA025 - Jul 18, 18:45 UTCJul 19, 18:00 UTC23h 15m
2026-07-18 ACA4 NRT → YVR Jul 18, 08:10 UTCJul 18, 16:40 UTC8h 30m
2026-07-17 ACA3 YVR → NRT Jul 17, 20:40 UTCJul 18, 05:25 UTC8h 46m
2026-07-17 ACA839 FRA → YVR Jul 17, 08:40 UTCJul 17, 18:10 UTC9h 30m
2026-07-16 ACA838 YVR → FRA Jul 16, 20:49 UTCJul 17, 05:45 UTC8h 55m
2026-07-16 ACA026 - Jul 16, 02:50 UTCJul 16, 18:40 UTC15h 50m
2026-07-15 ACA026 - Jul 15, 22:05 UTCJul 16, 18:40 UTC20h 35m
2026-07-15 ACA025 - Jul 15, 20:20 UTCJul 16, 18:40 UTC22h 20m
2026-07-15 ACA025 - Jul 15, 18:25 UTCJul 16, 18:00 UTC23h 35m
2026-07-15 ACA36 BNE → YVR Jul 15, 00:35 UTCJul 15, 14:00 UTC13h 25m
2026-07-14 ACA35 YVR → BNE Jul 14, 07:20 UTCJul 14, 20:55 UTC13h 35m
2026-07-13 ACA345 - Jul 13, 22:15 UTCJul 14, 02:50 UTC4h 35m
2026-07-13 ACA342 YVR → YOW Jul 13, 16:20 UTCJul 13, 19:57 UTC3h 37m
2026-07-13 ACA342 - Jul 13, 16:20 UTCJul 13, 18:00 UTC1h 40m
2026-07-13 ACA8 HKG → YVR Jul 13, 02:15 UTCJul 13, 14:00 UTC11h 45m
2026-07-12 ACA7 - Jul 12, 08:15 UTCJul 12, 12:01 UTC3h 45m
2026-07-12 ACA7 YVR → HKG Jul 12, 08:15 UTCJul 12, 20:16 UTC12h 1m
2026-07-11 ACA345 - Jul 11, 22:20 UTCJul 12, 03:01 UTC4h 40m
2026-07-11 ACA342 YVR → YOW Jul 11, 16:10 UTCJul 11, 20:00 UTC3h 50m
2026-07-10 ACA030 - Jul 10, 13:05 UTCJul 10, 22:55 UTC9h 50m
2026-07-10 ACA030 PEK → YVR Jul 10, 12:09 UTCJul 10, 22:40 UTC10h 31m
2026-07-09 ACA029 - Jul 9, 21:50 UTCJul 10, 08:25 UTC10h 35m
2026-07-09 ACA029 YVR → PEK Jul 9, 21:48 UTCJul 10, 09:23 UTC11h 35m
2026-07-09 ACA64 ICN → YVR Jul 9, 09:15 UTCJul 9, 18:45 UTC9h 30m
2026-07-08 ACA63 - Jul 8, 20:25 UTCJul 9, 07:25 UTC11h 0m
2026-07-08 ACA919 DUB → YVR Jul 8, 09:05 UTCJul 8, 17:20 UTC8h 15m
2026-07-08 ACA800 - Jul 8, 01:15 UTCJul 8, 07:15 UTC6h 0m
2026-07-07 ACA921 ATH → YYZ Jul 7, 13:00 UTCJul 7, 22:50 UTC9h 50m
2026-07-07 ACA921 ATH → YYZ Jul 7, 12:56 UTCJul 7, 22:36 UTC9h 40m

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

Mode-S C023C8 frequently asked

What is Mode-S code C023C8?
C023C8 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FNOH.
Where is Mode-S C023C8 registered?
Mode-S code C023C8 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C023C8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C023C8, octal 60021710, decimal 12,592,072.
What flights does C023C8 operate?
Mode-S C023C8 has broadcast 20 distinct callsigns, including ACA025, ACA026, ACA90, ACA91, ACA029.