Apparatus

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sensors Mode-S transponder

C023AE

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C023AE
Octal
60021656
Decimal
12,592,046
Country
CA
Tail
C-FNNH
Type
B77L
Broadcasting now · callsign ACA33 · 38,000 ft
Flights observed
116
Distinct callsigns
18
Country
CA
Last broadcast
1h ago

Current position

C023AE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C023AE 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 18 distinct

Callsign Airline Flights Last seen
ACA34 Air Canada 26 2026-05-29
ACA33 Air Canada 23 2026-05-29
ACA43 Air Canada 10 2026-05-21
ACA42 Air Canada 10 2026-05-21
ACA855 Air Canada 8 2026-05-18
ACA852 Air Canada 6 2026-05-18
ACA139 Air Canada 5 2026-04-23
ACA107 Air Canada 5 2026-05-14
ACA146 Air Canada 4 2026-04-23
ACA112 Air Canada 4 2026-05-14
ACA897 Air Canada 3 2026-05-27
ACA896 Air Canada 2 2026-05-26
ACA48 Air Canada 2 2026-05-24
ACA2385 Air Canada 2 2026-04-30
ACA150 Air Canada 2 2026-05-25
ACA137 Air Canada 2 2026-05-25
ACA49 Air Canada 1 2026-05-24
ACA110 Air Canada 1 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ACA33 YVR → SYD May 29, 23:20 UTCMay 29, 23:30 UTC10m
2026-05-29 ACA34 SYD → YVR May 29, 16:20 UTCMay 29, 20:20 UTC4h 0m
2026-05-29 ACA34 SYD → YVR May 29, 16:18 UTCMay 29, 20:10 UTC3h 52m
2026-05-28 ACA34 SYD → YVR May 28, 23:50 UTCMay 29, 13:35 UTC13h 45m
2026-05-28 ACA33 YVR → SYD May 28, 06:10 UTCMay 28, 21:05 UTC14h 55m
2026-05-27 ACA33 YVR → SYD May 27, 23:40 UTCMay 28, 04:05 UTC4h 25m
2026-05-27 ACA897 ATH → YYZ May 27, 10:35 UTCMay 27, 20:14 UTC9h 39m
2026-05-27 ACA897 ATH → YYZ May 27, 10:35 UTCMay 27, 11:30 UTC55m
2026-05-26 ACA896 YYZ → ATH May 26, 22:59 UTCMay 27, 08:05 UTC9h 6m
2026-05-25 ACA150 YYC → YYZ May 25, 20:19 UTCMay 25, 23:24 UTC3h 5m
2026-05-25 ACA150 YYC → YYZ May 25, 20:18 UTCMay 25, 23:20 UTC3h 2m
2026-05-25 ACA137 YYZ → YYC May 25, 14:55 UTCMay 25, 18:25 UTC3h 30m
2026-05-25 ACA137 YYZ → YYC May 25, 14:50 UTCMay 25, 18:19 UTC3h 29m
2026-05-24 ACA49 DEL → YYZ May 24, 18:50 UTCMay 25, 10:05 UTC15h 15m
2026-05-24 ACA48 YYZ → DEL May 24, 01:57 UTCMay 24, 15:39 UTC13h 42m
2026-05-24 ACA48 YYZ → DEL May 24, 02:00 UTCMay 24, 15:55 UTC13h 55m
2026-05-21 ACA43 DEL → YYZ May 21, 17:45 UTCMay 22, 08:35 UTC14h 50m
2026-05-21 ACA42 YYZ → DEL May 21, 00:59 UTCMay 21, 14:44 UTC13h 45m
2026-05-21 ACA42 YYZ → DEL May 21, 01:00 UTCMay 21, 14:55 UTC13h 55m
2026-05-20 ACA897 ATH → YYZ May 20, 10:25 UTCMay 20, 21:00 UTC10h 35m
2026-05-19 ACA896 YYZ → ATH May 19, 23:00 UTCMay 20, 08:00 UTC9h 1m
2026-05-18 ACA855 LHR → YYZ May 18, 19:40 UTCMay 18, 19:45 UTC5m
2026-05-18 ACA855 LHR → YYZ May 18, 12:45 UTCMay 18, 19:45 UTC6h 59m
2026-05-18 ACA855 LHR → YYZ May 18, 12:45 UTCMay 18, 19:25 UTC6h 40m
2026-05-18 ACA852 YYZ → LHR May 18, 04:00 UTCMay 18, 10:35 UTC6h 35m
2026-05-16 ACA43 DEL → YYZ May 16, 17:45 UTCMay 17, 08:45 UTC15h 0m
2026-05-16 ACA42 YYZ → DEL May 16, 00:10 UTCMay 16, 14:11 UTC14h 1m
2026-05-16 ACA42 YYZ → DEL May 16, 00:06 UTCMay 16, 13:57 UTC13h 51m
2026-05-14 ACA112 YVR → YYZ May 14, 20:20 UTCMay 15, 00:10 UTC3h 50m
2026-05-14 ACA107 YYZ → YVR May 14, 13:29 UTCMay 14, 17:52 UTC4h 23m
2026-05-14 ACA107 YYZ → YVR May 14, 13:30 UTCMay 14, 18:05 UTC4h 35m
2026-05-12 ACA34 SYD → YVR May 12, 16:15 UTCMay 12, 20:10 UTC3h 55m
2026-05-12 ACA34 SYD → YVR May 12, 16:13 UTCMay 12, 19:57 UTC3h 44m
2026-05-12 ACA34 SYD → YVR May 12, 00:00 UTCMay 12, 13:49 UTC13h 49m
2026-05-12 ACA34 SYD → YVR May 12, 08:35 UTCMay 12, 13:45 UTC5h 10m
2026-05-11 ACA33 YVR → SYD May 11, 06:25 UTCMay 11, 21:30 UTC15h 5m
2026-05-10 ACA33 YVR → SYD May 10, 23:55 UTCMay 11, 04:20 UTC4h 25m
2026-05-10 ACA34 SYD → YVR May 10, 16:20 UTCMay 10, 20:00 UTC3h 40m
2026-05-09 ACA34 SYD → YVR May 9, 23:35 UTCMay 10, 12:49 UTC13h 15m
2026-05-09 ACA33 YVR → SYD May 9, 06:15 UTCMay 9, 21:25 UTC15h 10m
2026-05-08 ACA33 YVR → SYD May 8, 23:15 UTCMay 9, 03:40 UTC4h 25m
2026-05-08 ACA33 YVR → SYD May 8, 23:13 UTCMay 9, 03:25 UTC4h 12m
2026-05-08 ACA34 SYD → YVR May 8, 16:35 UTCMay 8, 20:25 UTC3h 50m
2026-05-07 ACA34 SYD → YVR May 7, 23:45 UTCMay 8, 13:00 UTC13h 15m
2026-05-07 ACA33 YVR → SYD May 7, 06:05 UTCMay 7, 21:20 UTC15h 16m
2026-05-06 ACA33 YVR → SYD May 6, 23:20 UTCMay 7, 03:50 UTC4h 30m
2026-05-06 ACA43 DEL → YYZ May 6, 08:50 UTCMay 6, 08:55 UTC5m
2026-05-05 ACA43 DEL → YYZ May 5, 17:35 UTCMay 6, 04:00 UTC10h 25m
2026-05-05 ACA43 DEL → YYZ May 5, 17:32 UTCMay 6, 08:35 UTC15h 3m
2026-05-05 ACA42 YYZ → DEL May 5, 00:45 UTCMay 5, 15:15 UTC14h 30m

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

Mode-S C023AE frequently asked

What is Mode-S code C023AE?
C023AE is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FNNH.
Where is Mode-S C023AE registered?
Mode-S code C023AE is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C023AE broadcasting right now?
Yes. Mode-S C023AE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C023AE, octal 60021656, decimal 12,592,046.
What flights does C023AE operate?
Mode-S C023AE has broadcast 18 distinct callsigns, including ACA34, ACA33, ACA43, ACA42, ACA855.