Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

C023BD

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FNNW · BOEING 777-300ER · operated by Air Canada

Hex
C023BD
Octal
60021675
Decimal
12,592,061
Country
CA
Tail
C-FNNW
Type
B77W
No current signal · last broadcast Jul 26, 17:50 UTC
Flights observed
271
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 17:50 UTC

Last known position

Most recent position reported by Mode-S C023BD.

Country allocation

The ICAO 24-bit address C023BD 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
ACA899 Air Canada 23 2026-07-25
ACA893 Air Canada 23 2026-07-24
ACA874 Air Canada 23 2026-07-21
ACA898 Air Canada 22 2026-07-24
ACA5 Air Canada 22 2026-07-26
ACA892 Air Canada 21 2026-07-24
ACA871 - 20 2026-07-12
ACA870 - 18 2026-07-12
ACA311 Air Canada 18 2026-07-22
ACA304 Air Canada 18 2026-07-23
ACA875 Air Canada 17 2026-07-22
ACA6 - 15 2026-07-20
ACA833 Air Canada 8 2026-07-26
ACA832 Air Canada 8 2026-07-25
ACA922 Air Canada 3 2026-04-25
ACA923 Air Canada 2 2026-04-25
ACA7058 Air Canada 2 2026-06-14
ACA7051 Air Canada 2 2026-06-09
ACA306 Air Canada 2 2026-06-26
ACA301 - 2 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ACA5 YUL → NRT Jul 26, 17:20 UTCJul 26, 17:50 UTC30m
2026-07-26 ACA833 BRU → YUL Jul 26, 07:30 UTCJul 26, 14:25 UTC6h 55m
2026-07-25 ACA832 YUL → BRU Jul 25, 23:00 UTCJul 26, 04:55 UTC5h 55m
2026-07-25 ACA832 YUL → BRU Jul 25, 22:56 UTCJul 26, 04:50 UTC5h 54m
2026-07-25 ACA899 ATH → YUL Jul 25, 10:05 UTCJul 25, 19:15 UTC9h 10m
2026-07-24 ACA898 YUL → ATH Jul 24, 22:40 UTCJul 25, 06:55 UTC8h 15m
2026-07-24 ACA898 YUL → ATH Jul 24, 22:37 UTCJul 25, 06:42 UTC8h 5m
2026-07-24 ACA893 FCO → YUL Jul 24, 10:05 UTCJul 24, 17:55 UTC7h 50m
2026-07-24 ACA892 YUL → FCO Jul 24, 00:05 UTCJul 24, 07:15 UTC7h 10m
2026-07-23 ACA304 YVR → YUL Jul 23, 16:25 UTCJul 23, 20:30 UTC4h 5m
2026-07-22 ACA311 YUL → YVR Jul 22, 21:50 UTCJul 23, 02:35 UTC4h 45m
2026-07-22 ACA875 CDG → YUL Jul 22, 14:00 UTCJul 22, 15:15 UTC1h 15m
2026-07-21 ACA874 YUL → CDG Jul 21, 23:00 UTCJul 22, 05:15 UTC6h 15m
2026-07-21 ACA893 - Jul 21, 10:05 UTCJul 21, 18:20 UTC8h 15m
2026-07-20 ACA892 YUL → FCO Jul 20, 23:45 UTCJul 21, 07:00 UTC7h 15m
2026-07-20 ACA6 - Jul 20, 09:00 UTCJul 20, 20:55 UTC11h 55m
2026-07-19 ACA5 YUL → NRT Jul 19, 17:40 UTCJul 20, 06:35 UTC12h 55m
2026-07-19 ACA5 YUL → NRT Jul 19, 17:41 UTCJul 20, 06:17 UTC12h 36m
2026-07-19 ACA833 BRU → YUL Jul 19, 08:05 UTCJul 19, 14:50 UTC6h 45m
2026-07-18 ACA832 YUL → BRU Jul 18, 23:45 UTCJul 19, 05:55 UTC6h 10m
2026-07-18 ACA899 ATH → YUL Jul 18, 09:25 UTCJul 18, 18:45 UTC9h 20m
2026-07-17 ACA898 YUL → ATH Jul 17, 22:25 UTCJul 18, 07:00 UTC8h 36m
2026-07-17 ACA893 - Jul 17, 09:55 UTCJul 17, 17:50 UTC7h 55m
2026-07-16 ACA892 YUL → FCO Jul 16, 23:59 UTCJul 17, 07:25 UTC7h 25m
2026-07-16 ACA304 YVR → YUL Jul 16, 16:21 UTCJul 16, 20:10 UTC3h 49m
2026-07-16 ACA304 - Jul 16, 16:25 UTCJul 16, 20:25 UTC4h 0m
2026-07-14 ACA311 YUL → YVR Jul 14, 22:45 UTCJul 15, 03:40 UTC4h 55m
2026-07-14 ACA899 - Jul 14, 20:05 UTCJul 14, 20:10 UTC5m
2026-07-14 ACA899 ATH → YUL Jul 14, 10:48 UTCJul 14, 19:50 UTC9h 2m
2026-07-14 ACA899 - Jul 14, 10:50 UTCJul 14, 14:55 UTC4h 5m
2026-07-13 ACA898 YUL → ATH Jul 13, 23:05 UTCJul 14, 07:35 UTC8h 30m
2026-07-13 ACA893 - Jul 13, 17:30 UTCJul 13, 18:45 UTC1h 15m
2026-07-13 ACA893 - Jul 13, 10:30 UTCJul 13, 17:25 UTC6h 55m
2026-07-13 ACA892 - Jul 13, 00:10 UTCJul 13, 07:40 UTC7h 30m
2026-07-13 ACA892 YUL → FCO Jul 13, 00:06 UTCJul 13, 07:43 UTC7h 37m
2026-07-12 ACA871 - Jul 12, 13:40 UTCJul 12, 20:15 UTC6h 35m
2026-07-12 ACA870 YUL → CDG Jul 12, 02:01 UTCJul 12, 08:25 UTC6h 25m
2026-07-11 ACA304 YVR → YUL Jul 11, 16:45 UTCJul 11, 20:45 UTC4h 0m
2026-07-10 ACA311 YUL → YVR Jul 10, 22:00 UTCJul 11, 02:50 UTC4h 50m
2026-07-10 ACA875 - Jul 10, 09:50 UTCJul 10, 16:55 UTC7h 5m
2026-07-09 ACA874 YUL → CDG Jul 9, 23:10 UTCJul 10, 05:09 UTC5h 59m
2026-07-09 ACA874 YUL → CDG Jul 9, 23:10 UTCJul 10, 05:20 UTC6h 10m
2026-07-09 ACA871 - Jul 9, 12:45 UTCJul 9, 13:15 UTC30m
2026-07-09 ACA871 CDG → YUL Jul 9, 12:40 UTCJul 9, 19:42 UTC7h 2m
2026-07-09 ACA870 YUL → CDG Jul 9, 02:00 UTCJul 9, 08:05 UTC6h 5m
2026-07-09 ACA870 - Jul 9, 02:00 UTCJul 9, 03:10 UTC1h 10m
2026-07-08 ACA893 FCO → YUL Jul 8, 12:45 UTCJul 8, 20:50 UTC8h 5m
2026-07-08 ACA892 - Jul 8, 02:25 UTCJul 8, 10:00 UTC7h 35m
2026-07-07 ACA875 - Jul 7, 08:30 UTCJul 7, 15:10 UTC6h 40m
2026-07-06 ACA874 YUL → CDG Jul 6, 23:15 UTCJul 7, 05:20 UTC6h 5m

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

Mode-S C023BD frequently asked

What is Mode-S code C023BD?
C023BD is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FNNW.
Where is Mode-S C023BD registered?
Mode-S code C023BD is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C023BD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C023BD, octal 60021675, decimal 12,592,061.
What flights does C023BD operate?
Mode-S C023BD has broadcast 20 distinct callsigns, including ACA899, ACA893, ACA874, ACA898, ACA5.