sensors Mode-S transponder
C01A7D
ICAO 24-bit transponder address · allocated to Canada
Currently assigned to C-FKAU · BOEING 777-300ER · operated by Air Canada
- Hex
- C01A7D
- Octal
- 60015175
- Decimal
- 12,589,693
- Country
- CA
- Tail
- C-FKAU
- Type
- B77W
- Flights observed
- 73
- Distinct callsigns
- 20
- Country
- CA
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address C01A7D 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 |
|---|---|---|---|
| ACA311 | Air Canada | 10 | 2026-04-25 |
| ACA304 | Air Canada | 9 | 2026-04-26 |
| ACA870 | Air Canada | 8 | 2026-05-03 |
| ACA871 | Air Canada | 7 | 2026-05-03 |
| ACA923 | Air Canada | 6 | 2026-04-24 |
| ACA922 | Air Canada | 4 | 2026-04-24 |
| ACA875 | Air Canada | 4 | 2026-05-04 |
| ACA874 | Air Canada | 4 | 2026-05-03 |
| ACA899 | Air Canada | 3 | 2026-05-28 |
| ACA898 | Air Canada | 3 | 2026-05-27 |
| ACA892 | Air Canada | 2 | 2026-04-26 |
| ACA891 | Air Canada | 2 | 2026-04-27 |
| ACA7102 | Air Canada | 2 | 2026-05-25 |
| ACA2 | Air Canada | 2 | 2026-04-22 |
| ACA1370 | Air Canada | 2 | 2026-04-23 |
| ACA893 | Air Canada | 1 | 2026-04-20 |
| ACA7326 | Air Canada | 1 | 2026-05-25 |
| ACA7071 | Air Canada | 1 | 2026-05-01 |
| ACA5 | Air Canada | 1 | 2026-05-04 |
| ACA1 | Air Canada | 1 | 2026-04-22 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-28 | ACA899 | ATH → YUL | May 28, 09:35 UTC | May 28, 18:35 UTC | 9h 0m |
| 2026-05-27 | ACA898 | YUL → ATH | May 27, 22:20 UTC | May 28, 07:10 UTC | 8h 50m |
| 2026-05-27 | ACA899 | ATH → YUL | May 27, 09:40 UTC | May 27, 18:25 UTC | 8h 45m |
| 2026-05-26 | ACA898 | YUL → ATH | May 26, 22:35 UTC | May 27, 07:05 UTC | 8h 30m |
| 2026-05-25 | ACA7326 | ATL → YYZ | May 25, 07:50 UTC | May 25, 22:40 UTC | 14h 49m |
| 2026-05-25 | ACA7102 | NRT → SIN | May 25, 02:45 UTC | May 25, 03:15 UTC | 30m |
| 2026-05-05 | ACA7102 | NRT → SIN | May 5, 12:25 UTC | May 5, 17:35 UTC | 5h 10m |
| 2026-05-04 | ACA5 | YUL → NRT | May 4, 18:00 UTC | May 5, 07:00 UTC | 13h 1m |
| 2026-05-04 | ACA875 | CDG → YUL | May 4, 07:45 UTC | May 4, 14:50 UTC | 7h 5m |
| 2026-05-03 | ACA874 | YUL → CDG | May 3, 22:49 UTC | May 4, 05:20 UTC | 6h 30m |
| 2026-05-03 | ACA871 | CDG → YUL | May 3, 12:35 UTC | May 3, 19:25 UTC | 6h 50m |
| 2026-05-03 | ACA870 | YUL → CDG | May 3, 01:50 UTC | May 3, 08:15 UTC | 6h 24m |
| 2026-05-03 | ACA870 | YUL → CDG | May 3, 01:48 UTC | May 3, 08:00 UTC | 6h 12m |
| 2026-05-02 | ACA899 | ATH → YUL | May 2, 11:35 UTC | May 2, 20:40 UTC | 9h 5m |
| 2026-05-02 | ACA898 | YUL → ATH | May 2, 00:00 UTC | May 2, 08:55 UTC | 8h 55m |
| 2026-05-01 | ACA7071 | YUL → YYZ | May 1, 20:10 UTC | May 1, 21:00 UTC | 50m |
| 2026-04-27 | ACA891 | FCO → YYZ | Apr 27, 10:55 UTC | Apr 27, 19:25 UTC | 8h 30m |
| 2026-04-27 | ACA891 | FCO → YYZ | Apr 27, 10:52 UTC | Apr 27, 19:15 UTC | 8h 23m |
| 2026-04-26 | ACA892 | YUL → FCO | Apr 26, 23:30 UTC | Apr 27, 07:25 UTC | 7h 55m |
| 2026-04-26 | ACA304 | YVR → YUL | Apr 26, 16:35 UTC | Apr 26, 20:45 UTC | 4h 10m |
| 2026-04-25 | ACA311 | YUL → YVR | Apr 25, 22:25 UTC | Apr 26, 01:15 UTC | 2h 50m |
| 2026-04-25 | ACA311 | YUL → YVR | Apr 25, 22:22 UTC | Apr 26, 03:40 UTC | 5h 18m |
| 2026-04-25 | ACA871 | CDG → YUL | Apr 25, 12:35 UTC | Apr 25, 19:05 UTC | 6h 30m |
| 2026-04-25 | ACA870 | YUL → CDG | Apr 25, 01:50 UTC | Apr 25, 08:25 UTC | 6h 35m |
| 2026-04-24 | ACA923 | MCO → YYZ | Apr 24, 19:05 UTC | Apr 24, 22:55 UTC | 3h 50m |
| 2026-04-24 | ACA922 | YYZ → MCO | Apr 24, 12:45 UTC | Apr 24, 16:25 UTC | 3h 40m |
| 2026-04-23 | ACA923 | MCO → YYZ | Apr 23, 22:50 UTC | Apr 24, 02:35 UTC | 3h 45m |
| 2026-04-23 | ACA1370 | YYZ → CUN | Apr 23, 20:45 UTC | Apr 23, 20:55 UTC | 10m |
| 2026-04-23 | ACA1370 | YYZ → CUN | Apr 23, 17:15 UTC | Apr 23, 20:05 UTC | 2h 49m |
| 2026-04-22 | ACA2 | HND → YYZ | Apr 22, 18:35 UTC | Apr 22, 19:15 UTC | 40m |
| 2026-04-22 | ACA2 | HND → YYZ | Apr 22, 18:35 UTC | Apr 23, 06:04 UTC | 11h 29m |
| 2026-04-22 | ACA1 | YYZ → HND | Apr 22, 06:45 UTC | Apr 22, 16:10 UTC | 9h 25m |
| 2026-04-21 | ACA311 | YUL → YVR | Apr 21, 22:50 UTC | Apr 22, 03:50 UTC | 5h 0m |
| 2026-04-21 | ACA304 | YVR → YUL | Apr 21, 16:31 UTC | Apr 21, 20:30 UTC | 4h 0m |
| 2026-04-20 | ACA311 | YUL → YVR | Apr 20, 22:20 UTC | Apr 21, 03:10 UTC | 4h 50m |
| 2026-04-20 | ACA893 | FCO → YUL | Apr 20, 09:50 UTC | Apr 20, 18:05 UTC | 8h 15m |
| 2026-04-19 | ACA892 | YUL → FCO | Apr 19, 23:45 UTC | Apr 20, 07:00 UTC | 7h 15m |
| 2026-04-19 | ACA304 | YVR → YUL | Apr 19, 16:35 UTC | Apr 19, 20:50 UTC | 4h 15m |
| 2026-04-19 | ACA304 | YVR → YUL | Apr 19, 16:34 UTC | Apr 19, 20:36 UTC | 4h 2m |
| 2026-04-18 | ACA311 | YUL → YVR | Apr 18, 22:20 UTC | Apr 19, 02:50 UTC | 4h 30m |
| 2026-04-18 | ACA871 | CDG → YUL | Apr 18, 12:45 UTC | Apr 18, 20:00 UTC | 7h 15m |
| 2026-04-18 | ACA870 | YUL → CDG | Apr 18, 07:25 UTC | Apr 18, 08:10 UTC | 45m |
| 2026-04-18 | ACA870 | YUL → CDG | Apr 18, 06:50 UTC | Apr 18, 07:20 UTC | 30m |
| 2026-04-18 | ACA870 | YUL → CDG | Apr 18, 02:00 UTC | Apr 18, 08:08 UTC | 6h 8m |
| 2026-04-17 | ACA923 | MCO → YYZ | Apr 17, 21:25 UTC | Apr 17, 22:55 UTC | 1h 30m |
| 2026-04-17 | ACA923 | MCO → YYZ | Apr 17, 20:05 UTC | Apr 17, 21:20 UTC | 1h 15m |
| 2026-04-17 | ACA923 | MCO → YYZ | Apr 17, 19:25 UTC | Apr 17, 20:00 UTC | 35m |
| 2026-04-17 | ACA923 | MCO → YYZ | Apr 17, 19:10 UTC | Apr 17, 19:20 UTC | 10m |
| 2026-04-17 | ACA922 | YYZ → MCO | Apr 17, 15:20 UTC | Apr 17, 16:20 UTC | 1h 0m |
| 2026-04-17 | ACA922 | YYZ → MCO | Apr 17, 13:20 UTC | Apr 17, 15:15 UTC | 1h 54m |
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-FKAU page for operator, model, and routing details .