Apparatus

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sensors Mode-S transponder

C07973

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GTZU · AIRBUS A220-300 · operated by Air Canada

Hex
C07973
Octal
60074563
Decimal
12,614,003
Country
CA
Tail
C-GTZU
Type
BCS3
No current signal · last broadcast 2h ago
Flights observed
193
Distinct callsigns
20
Country
CA
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C07973.

Country allocation

The ICAO 24-bit address C07973 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
ACA745 Air Canada 4 2026-05-26
ACA414 Air Canada 4 2026-05-29
ACA766 Air Canada 3 2026-05-15
ACA668 Air Canada 3 2026-04-25
ACA507 Air Canada 3 2026-05-25
ACA424 Air Canada 3 2026-05-18
ACA421 Air Canada 3 2026-05-17
ACA417 Air Canada 3 2026-05-14
ACA372 Air Canada 3 2026-05-12
ACA317 Air Canada 3 2026-05-19
ACA160 Air Canada 3 2026-04-16
ACA1272 - 3 2026-04-13
ACA1227 Air Canada 3 2026-05-22
ACA1162 Air Canada 3 2026-04-28
ACA1122 Air Canada 3 2026-05-22
ACA1031 Air Canada 3 2026-04-16
ACA782 Air Canada 2 2026-05-28
ACA769 Air Canada 2 2026-05-15
ACA765 Air Canada 2 2026-05-28
ACA738 Air Canada 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 ACA1573 YYT → YYZ May 29, 22:15 UTCMay 30, 00:40 UTC2h 25m
2026-05-29 ACA414 YYZ → YUL May 29, 18:15 UTCMay 29, 19:15 UTC1h 0m
2026-05-29 ACA414 YYZ → YUL May 29, 18:15 UTCMay 29, 19:01 UTC46m
2026-05-29 ACA1120 YXE → YYZ May 29, 12:05 UTCMay 29, 14:55 UTC2h 50m
2026-05-29 ACA1127 YYZ → YXE May 29, 02:20 UTCMay 29, 05:20 UTC3h 0m
2026-05-28 ACA765 EWR → YYZ May 28, 23:35 UTCMay 29, 00:45 UTC1h 10m
2026-05-28 ACA765 EWR → YYZ May 28, 23:34 UTCMay 29, 00:40 UTC1h 6m
2026-05-28 ACA772 YYZ → BOS May 28, 20:50 UTCMay 28, 22:00 UTC1h 10m
2026-05-28 ACA782 LAX → YYZ May 28, 14:50 UTCMay 28, 19:10 UTC4h 20m
2026-05-28 ACA782 LAX → YYZ May 28, 14:45 UTCMay 28, 19:00 UTC4h 15m
2026-05-27 ACA795 YYZ → LAX May 27, 23:00 UTCMay 28, 03:50 UTC4h 50m
2026-05-27 ACA738 SFO → YYZ May 27, 16:00 UTCMay 27, 20:35 UTC4h 35m
2026-05-26 ACA745 LGA → YUL May 26, 22:54 UTCMay 27, 03:54 UTC5h 0m
2026-05-26 ACA738 SFO → YYZ May 26, 15:45 UTCMay 26, 20:15 UTC4h 30m
2026-05-26 ACA745 LGA → YUL May 26, 06:44 UTCMay 26, 07:19 UTC35m
2026-05-26 ACA745 LGA → YUL May 26, 06:43 UTCMay 26, 07:08 UTC25m
2026-05-25 ACA745 LGA → YUL May 25, 23:24 UTCMay 26, 05:00 UTC5h 35m
2026-05-25 ACA506 ORD → YYZ May 25, 19:44 UTCMay 25, 20:50 UTC1h 5m
2026-05-25 ACA507 YYZ → ORD May 25, 16:50 UTCMay 25, 18:05 UTC1h 15m
2026-05-25 ACA1544 YYZ → YYG May 25, 12:50 UTCMay 25, 14:20 UTC1h 30m
2026-05-24 ACA1553 YUL → MSP May 24, 23:10 UTCMay 24, 23:46 UTC36m
2026-05-24 ACA1070 DFW → YUL May 24, 18:05 UTCMay 24, 21:05 UTC3h 0m
2026-05-23 ACA1071 YUL → DEN May 23, 22:35 UTCMay 24, 02:30 UTC3h 55m
2026-05-23 ACA1570 ATL → YUL May 23, 18:05 UTCMay 23, 20:10 UTC2h 6m
2026-05-22 ACA1227 MCO → YYZ May 22, 23:20 UTCMay 23, 01:15 UTC1h 55m
2026-05-22 ACA1122 YXE → YYZ May 22, 18:15 UTCMay 22, 21:00 UTC2h 45m
2026-05-22 ACA1122 YXE → YYZ May 22, 18:12 UTCMay 22, 20:57 UTC2h 45m
2026-05-22 ACA1106 YVR → YXE May 22, 15:20 UTCMay 22, 17:05 UTC1h 45m
2026-05-22 ACA277 YXY → YVR May 22, 12:15 UTCMay 22, 14:05 UTC1h 50m
2026-05-22 ACA280 YVR → YXY May 22, 03:30 UTCMay 22, 05:25 UTC1h 55m
2026-05-22 ACA571 SFO → YVR May 22, 00:15 UTCMay 22, 02:15 UTC2h 0m
2026-05-21 ACA566 YVR → SFO May 21, 20:40 UTCMay 21, 22:40 UTC2h 0m
2026-05-21 ACA575 YUL → LAS May 21, 15:30 UTCMay 21, 16:10 UTC40m
2026-05-21 ACA575 YUL → LAS May 21, 15:26 UTCMay 21, 17:57 UTC2h 31m
2026-05-21 ACA578 YVR → DEN May 21, 02:45 UTCMay 21, 05:05 UTC2h 20m
2026-05-20 ACA1049 ORD → YVR May 20, 21:20 UTCMay 21, 01:20 UTC4h 0m
2026-05-20 ACA1048 YVR → ORD May 20, 15:55 UTCMay 20, 19:45 UTC3h 50m
2026-05-20 ACA313 YUL → YVR May 20, 01:55 UTCMay 20, 07:00 UTC5h 6m
2026-05-19 ACA324 YYC → YUL May 19, 18:30 UTCMay 19, 22:05 UTC3h 35m
2026-05-19 ACA317 YUL → YVR May 19, 12:45 UTCMay 19, 17:00 UTC4h 15m
2026-05-19 ACA673 YYT → YUL May 19, 09:10 UTCMay 19, 10:45 UTC1h 35m
2026-05-19 ACA676 YUL → YYT May 19, 00:55 UTCMay 19, 02:20 UTC1h 25m
2026-05-19 ACA676 YUL → YYT May 19, 00:53 UTCMay 19, 02:45 UTC1h 52m
2026-05-18 ACA324 YYC → YUL May 18, 18:20 UTCMay 18, 21:55 UTC3h 34m
2026-05-18 ACA317 YUL → YVR May 18, 12:35 UTCMay 18, 16:50 UTC4h 15m
2026-05-18 ACA317 YUL → YVR May 18, 12:34 UTCMay 18, 16:42 UTC4h 8m
2026-05-18 ACA424 YYZ → YUL May 18, 00:12 UTCMay 18, 00:52 UTC40m
2026-05-18 ACA424 YYZ → YUL May 18, 00:15 UTCMay 18, 00:45 UTC30m
2026-05-17 ACA421 YUL → YYZ May 17, 21:50 UTCMay 17, 22:50 UTC1h 0m
2026-05-17 ACA1401 VRA → YYZ May 17, 15:31 UTCMay 17, 19:30 UTC4h 0m

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

Mode-S C07973 frequently asked

What is Mode-S code C07973?
C07973 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GTZU.
Where is Mode-S C07973 registered?
Mode-S code C07973 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C07973 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C07973, octal 60074563, decimal 12,614,003.
What flights does C07973 operate?
Mode-S C07973 has broadcast 20 distinct callsigns, including ACA745, ACA414, ACA766, ACA668, ACA507.