Apparatus

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sensors Mode-S transponder

C078AC

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GTSD · AIRBUS A-330-300 · operated by Air Transat A T Inc.

Hex
C078AC
Octal
60074254
Decimal
12,613,804
Country
CA
Tail
C-GTSD
Type
A333
Broadcasting now · callsign TSC402 · 37,000 ft
Flights observed
87
Distinct callsigns
20
Country
CA
Last broadcast
10h ago

Current position

C078AC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C078AC 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
TSC309 Air Transat 13 2026-05-27
TSC308 Air Transat 13 2026-05-27
TSC427 Air Transat 6 2026-04-19
TSC426 Air Transat 6 2026-04-18
TSC327 Air Transat 6 2026-04-28
TSC326 Air Transat 5 2026-04-28
TSC987 Air Transat 4 2026-04-29
TSC986 Air Transat 4 2026-04-20
TSC765 Air Transat 2 2026-05-16
TSC764 Air Transat 2 2026-05-16
TSC481 Air Transat 2 2026-04-26
TSC275 Air Transat 2 2026-05-22
TSC233 Air Transat 2 2026-04-25
TSC232 Air Transat 2 2026-04-25
TSC215 - 2 2026-04-12
TSC73 Air Transat 1 2026-05-28
TSC561 Air Transat 1 2026-05-16
TSC480 Air Transat 1 2026-04-25
TSC460 Air Transat 1 2026-05-23
TSC435 Air Transat 1 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TSC253 AGP → YUL May 29, 07:55 UTCMay 29, 15:05 UTC7h 10m
2026-05-28 TSC252 YUL → AGP May 28, 23:10 UTCMay 29, 05:50 UTC6h 40m
2026-05-28 TSC73 YHZ → YUL May 28, 20:50 UTCMay 28, 21:40 UTC50m
2026-05-27 TSC309 FCO → YYZ May 27, 12:50 UTCMay 27, 21:40 UTC8h 50m
2026-05-27 TSC308 YYZ → FCO May 27, 01:59 UTCMay 27, 10:40 UTC8h 40m
2026-05-26 TSC309 FCO → YYZ May 26, 12:45 UTCMay 26, 21:29 UTC8h 45m
2026-05-26 TSC308 YYZ → FCO May 26, 02:00 UTCMay 26, 10:29 UTC8h 30m
2026-05-25 TSC309 FCO → YYZ May 25, 13:45 UTCMay 25, 22:49 UTC9h 5m
2026-05-25 TSC308 YYZ → FCO May 25, 02:00 UTCMay 25, 10:30 UTC8h 30m
2026-05-24 TSC309 FCO → YYZ May 24, 12:45 UTCMay 24, 21:45 UTC9h 0m
2026-05-24 TSC308 YYZ → FCO May 24, 02:30 UTCMay 24, 10:50 UTC8h 20m
2026-05-23 TSC460 YUL → YYZ May 23, 20:40 UTCMay 23, 21:40 UTC1h 0m
2026-05-23 TSC435 MRS → YUL May 23, 10:35 UTCMay 23, 18:20 UTC7h 46m
2026-05-23 TSC434 YUL → MRS May 23, 01:50 UTCMay 23, 08:45 UTC6h 55m
2026-05-22 TSC275 GIG → YUL May 22, 14:35 UTCMay 23, 00:00 UTC9h 25m
2026-05-22 TSC275 GIG → YUL May 22, 13:35 UTCMay 22, 13:45 UTC10m
2026-05-22 TSC274 YUL → GIG May 22, 02:10 UTCMay 22, 11:50 UTC9h 40m
2026-05-21 TSC398 YUL → PUJ May 21, 13:30 UTCMay 21, 23:30 UTC10h 0m
2026-05-17 TSC111 CDG → YUL May 17, 10:40 UTCMay 17, 17:50 UTC7h 10m
2026-05-17 TSC110 YUL → CDG May 17, 01:45 UTCMay 17, 08:15 UTC6h 30m
2026-05-16 TSC561 YYZ → YUL May 16, 22:40 UTCMay 16, 23:35 UTC55m
2026-05-16 TSC765 OPO → YYZ May 16, 12:45 UTCMay 16, 20:40 UTC7h 55m
2026-05-16 TSC764 YYZ → OPO May 16, 04:15 UTCMay 16, 10:35 UTC6h 21m
2026-05-15 TSC309 FCO → YYZ May 15, 12:40 UTCMay 15, 21:45 UTC9h 4m
2026-05-15 TSC308 YYZ → FCO May 15, 01:55 UTCMay 15, 10:00 UTC8h 5m
2026-05-12 TSC309 FCO → YYZ May 12, 12:40 UTCMay 12, 22:01 UTC9h 20m
2026-05-12 TSC308 YYZ → FCO May 12, 02:45 UTCMay 12, 10:00 UTC7h 15m
2026-05-11 TSC123 LGW → YYZ May 11, 12:00 UTCMay 11, 19:35 UTC7h 35m
2026-05-11 TSC122 YYZ → LGW May 11, 03:10 UTCMay 11, 09:50 UTC6h 40m
2026-05-10 TSC309 FCO → YYZ May 10, 12:49 UTCMay 10, 21:59 UTC9h 10m
2026-05-10 TSC308 YYZ → FCO May 10, 02:14 UTCMay 10, 10:49 UTC8h 35m
2026-05-09 TSC309 FCO → YYZ May 9, 12:50 UTCMay 9, 21:45 UTC8h 55m
2026-05-09 TSC308 YYZ → FCO May 9, 01:55 UTCMay 9, 10:20 UTC8h 25m
2026-05-08 TSC309 FCO → YYZ May 8, 12:34 UTCMay 8, 21:45 UTC9h 10m
2026-05-08 TSC308 YYZ → FCO May 8, 01:59 UTCMay 8, 10:09 UTC8h 10m
2026-05-06 TSC309 FCO → YYZ May 6, 12:30 UTCMay 6, 21:55 UTC9h 24m
2026-05-06 TSC308 YYZ → FCO May 6, 02:01 UTCMay 6, 10:10 UTC8h 9m
2026-05-03 TSC309 FCO → YYZ May 3, 12:35 UTCMay 3, 21:39 UTC9h 5m
2026-05-03 TSC308 YYZ → FCO May 3, 02:00 UTCMay 3, 10:25 UTC8h 24m
2026-05-02 TSC309 FCO → YYZ May 2, 12:35 UTCMay 2, 21:25 UTC8h 50m
2026-05-02 TSC308 YYZ → FCO May 2, 01:50 UTCMay 2, 10:25 UTC8h 35m
2026-05-01 TSC309 FCO → YYZ May 1, 13:05 UTCMay 1, 21:55 UTC8h 50m
2026-05-01 TSC308 YYZ → FCO May 1, 02:00 UTCMay 1, 10:35 UTC8h 35m
2026-04-29 TSC987 PUJ → YYZ Apr 29, 21:20 UTCApr 30, 17:00 UTC19h 40m
2026-04-28 TSC987 PUJ → YYZ Apr 28, 21:35 UTCApr 29, 16:40 UTC19h 6m
2026-04-28 TSC327 CUN → YYZ Apr 28, 16:05 UTCApr 28, 19:35 UTC3h 30m
2026-04-28 TSC326 YYZ → CUN Apr 28, 10:45 UTCApr 28, 14:15 UTC3h 30m
2026-04-26 TSC186 YUL → LRM Apr 26, 18:40 UTCApr 27, 04:10 UTC9h 30m
2026-04-26 TSC481 LIS → YYZ Apr 26, 14:15 UTCApr 26, 16:05 UTC1h 50m
2026-04-26 TSC481 LIS → YYZ Apr 26, 08:50 UTCApr 26, 09:25 UTC35m

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

Mode-S C078AC frequently asked

What is Mode-S code C078AC?
C078AC is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GTSD.
Where is Mode-S C078AC registered?
Mode-S code C078AC is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C078AC broadcasting right now?
Yes. Mode-S C078AC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C078AC, octal 60074254, decimal 12,613,804.
What flights does C078AC operate?
Mode-S C078AC has broadcast 20 distinct callsigns, including TSC309, TSC308, TSC427, TSC426, TSC327.