Apparatus

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sensors Mode-S transponder

C012AA

ICAO 24-bit transponder address · allocated to Canada

Hex
C012AA
Octal
60011252
Decimal
12,587,690
Country
CA
No current signal · last broadcast 4h ago
Flights observed
58
Distinct callsigns
20
Country
CA
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S C012AA.

Country allocation

The ICAO 24-bit address C012AA 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
ABK350 - 6 2026-06-01
ACA429 - 4 2026-07-13
ACA676 - 2 2026-07-14
ACA673 - 2 2026-07-14
ACA427 - 2 2026-07-15
ACA424 - 2 2026-07-12
ACA409 - 2 2026-07-12
ACA376 - 2 2026-07-11
ACA374 - 2 2026-07-14
ACA373 - 2 2026-07-11
ACA371 - 2 2026-07-14
ACA259 - 2 2026-07-17
ACA244 - 2 2026-07-16
ACA1111 - 2 2026-07-17
ACA7131 Air Canada 1 2026-06-30
ACA7130 - 1 2026-07-07
ACA663 - 1 2026-07-16
ACA660 - 1 2026-07-16
ACA481 - 1 2026-07-17
ACA480 - 1 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 ACA246 - Jul 18, 02:45 UTCJul 18, 03:50 UTC1h 6m
2026-07-17 ACA1111 YXE → YVR Jul 17, 23:31 UTCJul 18, 01:15 UTC1h 44m
2026-07-17 ACA1111 YXE → YVR Jul 17, 23:35 UTCJul 18, 01:25 UTC1h 50m
2026-07-17 ACA1108 - Jul 17, 20:44 UTCJul 17, 22:20 UTC1h 35m
2026-07-17 ACA297 YWG → YVR Jul 17, 16:24 UTCJul 17, 19:20 UTC2h 55m
2026-07-17 ACA259 YYZ → YWG Jul 17, 12:45 UTCJul 17, 15:00 UTC2h 15m
2026-07-17 ACA259 YYZ → YWG Jul 17, 12:45 UTCJul 17, 15:10 UTC2h 25m
2026-07-17 ACA481 YUL → YYZ Jul 17, 10:20 UTCJul 17, 11:15 UTC55m
2026-07-17 ACA338 - Jul 17, 00:20 UTCJul 17, 03:39 UTC3h 20m
2026-07-16 ACA339 - Jul 16, 18:29 UTCJul 16, 22:55 UTC4h 25m
2026-07-16 ACA663 - Jul 16, 15:35 UTCJul 16, 17:00 UTC1h 25m
2026-07-16 ACA660 - Jul 16, 13:25 UTCJul 16, 14:25 UTC1h 0m
2026-07-16 ACA314 - Jul 16, 07:10 UTCJul 16, 11:20 UTC4h 10m
2026-07-16 ACA251 - Jul 16, 04:15 UTCJul 16, 05:45 UTC1h 30m
2026-07-16 ACA244 - Jul 16, 01:20 UTCJul 16, 02:25 UTC1h 5m
2026-07-16 ACA244 YVR → YEG Jul 16, 01:16 UTCJul 16, 02:18 UTC1h 2m
2026-07-15 ACA221 YYC → YVR Jul 15, 22:45 UTCJul 16, 00:00 UTC1h 15m
2026-07-15 ACA216 - Jul 15, 20:15 UTCJul 15, 21:20 UTC1h 5m
2026-07-15 ACA1109 - Jul 15, 17:00 UTCJul 15, 18:55 UTC1h 55m
2026-07-15 ACA1121 YYZ → YXE Jul 15, 12:40 UTCJul 15, 16:00 UTC3h 20m
2026-07-15 ACA427 YUL → YYZ Jul 15, 01:00 UTCJul 15, 01:55 UTC55m
2026-07-15 ACA427 YUL → YYZ Jul 15, 00:58 UTCJul 15, 01:46 UTC48m
2026-07-14 ACA422 - Jul 14, 22:25 UTCJul 14, 23:20 UTC54m
2026-07-14 ACA417 YUL → YYZ Jul 14, 19:45 UTCJul 14, 20:40 UTC55m
2026-07-14 ACA374 YWG → YUL Jul 14, 16:05 UTCJul 14, 18:10 UTC2h 5m
2026-07-14 ACA374 YWG → YUL Jul 14, 16:05 UTCJul 14, 17:57 UTC1h 52m
2026-07-14 ACA371 - Jul 14, 12:10 UTCJul 14, 12:30 UTC20m
2026-07-14 ACA371 YUL → YWG Jul 14, 12:10 UTCJul 14, 14:41 UTC2h 31m
2026-07-14 ACA673 - Jul 14, 09:05 UTCJul 14, 10:30 UTC1h 25m
2026-07-14 ACA676 - Jul 14, 02:05 UTCJul 14, 03:35 UTC1h 30m
2026-07-13 ACA336 - Jul 13, 20:15 UTCJul 13, 23:40 UTC3h 25m
2026-07-13 ACA331 - Jul 13, 14:10 UTCJul 13, 18:30 UTC4h 20m
2026-07-13 ACA400 YYZ → YUL Jul 13, 11:10 UTCJul 13, 12:05 UTC55m
2026-07-13 ACA429 YUL → YYZ Jul 13, 02:20 UTCJul 13, 03:05 UTC45m
2026-07-13 ACA429 - Jul 13, 02:20 UTCJul 13, 02:30 UTC10m
2026-07-12 ACA424 YYZ → YUL Jul 12, 23:11 UTCJul 12, 23:52 UTC41m
2026-07-12 ACA424 YYZ → YUL Jul 12, 23:15 UTCJul 13, 00:05 UTC50m
2026-07-12 ACA419 - Jul 12, 20:35 UTCJul 12, 21:25 UTC50m
2026-07-12 ACA414 YYZ → YUL Jul 12, 18:20 UTCJul 12, 19:15 UTC55m
2026-07-12 ACA409 YUL → YYZ Jul 12, 15:25 UTCJul 12, 16:15 UTC50m
2026-07-12 ACA409 YUL → YYZ Jul 12, 15:22 UTCJul 12, 16:12 UTC50m
2026-07-12 ACA480 YYZ → YUL Jul 12, 10:20 UTCJul 12, 11:15 UTC55m
2026-07-12 ACA429 YUL → YYZ Jul 12, 02:15 UTCJul 12, 03:05 UTC50m
2026-07-12 ACA429 YUL → YYZ Jul 12, 02:12 UTCJul 12, 03:01 UTC49m
2026-07-11 ACA376 YWG → YUL Jul 11, 21:15 UTCJul 11, 23:35 UTC2h 20m
2026-07-11 ACA376 YWG → YUL Jul 11, 21:12 UTCJul 11, 23:19 UTC2h 7m
2026-07-11 ACA373 - Jul 11, 17:15 UTCJul 11, 18:10 UTC55m
2026-07-11 ACA373 YUL → YWG Jul 11, 17:15 UTCJul 11, 19:46 UTC2h 31m
2026-07-11 ACA673 - Jul 11, 09:05 UTCJul 11, 10:35 UTC1h 30m
2026-07-11 ACA676 - Jul 11, 01:15 UTCJul 11, 03:05 UTC1h 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.

Mode-S C012AA frequently asked

What is Mode-S code C012AA?
C012AA is an ICAO 24-bit transponder address. Allocated to Canada.
Where is Mode-S C012AA registered?
Mode-S code C012AA is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C012AA broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C012AA, octal 60011252, decimal 12,587,690.
What flights does C012AA operate?
Mode-S C012AA has broadcast 20 distinct callsigns, including ABK350, ACA429, ACA676, ACA673, ACA427.