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sensors Mode-S transponder

C050C4

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C050C4 · BOEING 737 MAX 8 · operated by Air Canada

Hex
C050C4
Octal
60050304
Decimal
12,603,588
Country
CA
Tail
C050C4
Type
B38M
Broadcasting now · callsign ROU1735 · 10,400 ft
Flights observed
406
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 01:25 UTC

Current position

C050C4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C050C4 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
ACA756 - 11 2026-07-14
ACA996 Air Canada 10 2026-04-25
ACA782 Air Canada 10 2026-05-14
ACA192 - 9 2026-06-30
ACA990 Air Canada 8 2026-06-17
ACA793 Air Canada 8 2026-05-14
ACA991 Air Canada 7 2026-06-17
ACA759 - 7 2026-07-13
ACA994 - 6 2026-07-16
ACA774 - 6 2026-07-15
ACA742 Air Canada 6 2026-07-25
ACA194 - 6 2026-07-01
ACA191 - 6 2026-06-30
ACA176 Air Canada 6 2026-06-14
ACA792 - 5 2026-07-02
ACA741 Air Canada 5 2026-07-25
ACA590 Air Canada 5 2026-06-16
ACA405 Air Canada 5 2026-07-24
ACA195 - 5 2026-07-01
ACA973 Air Canada 4 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ACA742 SFO → YYZ Jul 25, 21:05 UTCJul 26, 01:20 UTC4h 15m
2026-07-25 ACA741 YYZ → SFO Jul 25, 14:35 UTCJul 25, 19:40 UTC5h 5m
2026-07-25 ACA483 YUL → YYZ Jul 25, 11:35 UTCJul 25, 12:25 UTC50m
2026-07-25 ACA483 YUL → YYZ Jul 25, 11:32 UTCJul 25, 12:14 UTC42m
2026-07-25 ACA430 YYZ → YUL Jul 25, 02:15 UTCJul 25, 03:10 UTC55m
2026-07-24 ACA148 YYC → YYZ Jul 24, 21:25 UTCJul 25, 00:40 UTC3h 15m
2026-07-24 ACA141 YYZ → YYC Jul 24, 16:15 UTCJul 24, 20:05 UTC3h 50m
2026-07-24 ACA405 YUL → YYZ Jul 24, 13:30 UTCJul 24, 14:20 UTC50m
2026-07-24 ACA405 YUL → YYZ Jul 24, 13:27 UTCJul 24, 14:06 UTC39m
2026-07-24 ACA480 YYZ → YUL Jul 24, 10:25 UTCJul 24, 11:20 UTC55m
2026-07-21 ACA100 YVR → YYZ Jul 21, 13:20 UTCJul 21, 17:10 UTC3h 50m
2026-07-21 ACA129 YYZ → YVR Jul 21, 03:30 UTCJul 21, 08:15 UTC4h 45m
2026-07-20 ACA742 - Jul 20, 21:05 UTCJul 21, 01:50 UTC4h 44m
2026-07-20 ACA741 YYZ → SFO Jul 20, 14:30 UTCJul 20, 19:15 UTC4h 45m
2026-07-20 ACA401 YUL → YYZ Jul 20, 11:20 UTCJul 20, 12:10 UTC50m
2026-07-20 ACA401 YUL → YYZ Jul 20, 11:19 UTCJul 20, 12:10 UTC51m
2026-07-20 ACA430 - Jul 20, 02:15 UTCJul 20, 03:10 UTC55m
2026-07-19 ACA1078 SAN → YYZ Jul 19, 19:35 UTCJul 19, 23:55 UTC4h 20m
2026-07-19 ACA1077 IAD → YYZ Jul 19, 13:35 UTCJul 19, 18:00 UTC4h 25m
2026-07-19 ACA124 - Jul 19, 01:20 UTCJul 19, 05:05 UTC3h 45m
2026-07-18 ACA113 YYZ → YVR Jul 18, 17:55 UTCJul 18, 22:35 UTC4h 40m
2026-07-18 ACA130 YYC → YYZ Jul 18, 12:45 UTCJul 18, 16:10 UTC3h 25m
2026-07-17 ACA321 - Jul 17, 21:05 UTCJul 18, 01:00 UTC3h 55m
2026-07-17 ACA321 YUL → YYC Jul 17, 21:02 UTCJul 18, 01:27 UTC4h 25m
2026-07-17 ACA322 YYC → YUL Jul 17, 15:40 UTCJul 17, 19:09 UTC3h 30m
2026-07-16 ACA321 YUL → YYC Jul 16, 21:05 UTCJul 17, 01:15 UTC4h 10m
2026-07-16 ACA994 - Jul 16, 12:40 UTCJul 16, 17:20 UTC4h 40m
2026-07-16 ACA995 YUL → MEX Jul 16, 00:55 UTCJul 16, 05:30 UTC4h 35m
2026-07-15 ACA774 - Jul 15, 15:30 UTCJul 15, 20:20 UTC4h 50m
2026-07-14 ACA777 - Jul 14, 21:35 UTCJul 15, 02:35 UTC4h 59m
2026-07-14 ACA756 SFO → YUL Jul 14, 15:10 UTCJul 14, 19:55 UTC4h 45m
2026-07-13 ACA759 YUL → SFO Jul 13, 22:00 UTCJul 14, 03:05 UTC5h 5m
2026-07-13 ACA756 SFO → YUL Jul 13, 15:05 UTCJul 13, 20:05 UTC5h 0m
2026-07-12 ACA759 YUL → SFO Jul 12, 22:10 UTCJul 13, 03:15 UTC5h 5m
2026-07-12 ACA756 SFO → YUL Jul 12, 15:15 UTCJul 12, 20:10 UTC4h 55m
2026-07-12 ACA756 SFO → YUL Jul 12, 15:12 UTCJul 12, 19:56 UTC4h 44m
2026-07-11 ACA759 - Jul 11, 22:50 UTCJul 12, 04:05 UTC5h 15m
2026-07-11 ACA756 SFO → YUL Jul 11, 15:20 UTCJul 11, 20:15 UTC4h 55m
2026-07-10 ACA759 YUL → SFO Jul 10, 22:25 UTCJul 11, 04:15 UTC5h 50m
2026-07-10 ACA774 - Jul 10, 15:40 UTCJul 10, 20:20 UTC4h 40m
2026-07-10 ACA774 LAX → YUL Jul 10, 15:38 UTCJul 10, 20:07 UTC4h 29m
2026-07-09 ACA777 YUL → LAX Jul 9, 21:45 UTCJul 10, 03:25 UTC5h 40m
2026-07-09 ACA1205 - Jul 9, 12:25 UTCJul 9, 15:15 UTC2h 50m
2026-07-08 ACA1208 - Jul 8, 23:20 UTCJul 9, 02:20 UTC3h 0m
2026-07-08 ACA756 - Jul 8, 15:20 UTCJul 8, 20:15 UTC4h 55m
2026-07-07 ACA759 YUL → SFO Jul 7, 22:05 UTCJul 8, 03:45 UTC5h 40m
2026-07-07 ACA759 YUL → SFO Jul 7, 22:04 UTCJul 8, 03:30 UTC5h 26m
2026-07-07 ACA774 - Jul 7, 15:30 UTCJul 7, 20:20 UTC4h 50m
2026-07-06 ACA777 YUL → LAX Jul 6, 21:15 UTCJul 7, 02:25 UTC5h 10m
2026-07-06 ACA582 - Jul 6, 15:25 UTCJul 6, 18:30 UTC3h 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 C050C4 page for operator, model, and routing details .

Mode-S C050C4 frequently asked

What is Mode-S code C050C4?
C050C4 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C050C4.
Where is Mode-S C050C4 registered?
Mode-S code C050C4 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C050C4 broadcasting right now?
Yes. Mode-S C050C4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C050C4, octal 60050304, decimal 12,603,588.
What flights does C050C4 operate?
Mode-S C050C4 has broadcast 20 distinct callsigns, including ACA756, ACA996, ACA782, ACA192, ACA990.