Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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
No current signal · last broadcast 1h ago
Flights observed
171
Distinct callsigns
20
Country
CA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S C078AC.

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 - 33 2026-07-13
TSC308 - 31 2026-07-14
TSC427 Air Transat 6 2026-04-19
TSC426 Air Transat 6 2026-04-18
TSC327 Air Transat 6 2026-04-28
TSC122 - 6 2026-07-11
TSC765 - 5 2026-07-10
TSC764 - 5 2026-07-10
TSC326 Air Transat 5 2026-04-28
TSC123 - 5 2026-07-11
TSC987 Air Transat 4 2026-04-29
TSC986 Air Transat 4 2026-04-20
TSC481 - 4 2026-07-06
TSC480 - 3 2026-07-06
TSC435 Air Transat 3 2026-06-12
TSC434 Air Transat 3 2026-06-12
TSC681 Air Transat 2 2026-06-09
TSC680 Air Transat 2 2026-06-08
TSC403 Air Transat 2 2026-06-01
TSC402 Air Transat 2 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TSC308 - Jul 14, 01:55 UTCJul 14, 04:05 UTC2h 10m
2026-07-13 TSC309 - Jul 13, 15:25 UTCJul 13, 22:15 UTC6h 50m
2026-07-13 TSC309 - Jul 13, 13:15 UTCJul 13, 15:20 UTC2h 5m
2026-07-13 TSC308 - Jul 13, 01:55 UTCJul 13, 10:20 UTC8h 25m
2026-07-12 TSC309 - Jul 12, 12:35 UTCJul 12, 21:25 UTC8h 50m
2026-07-12 TSC308 - Jul 12, 02:10 UTCJul 12, 10:35 UTC8h 25m
2026-07-11 TSC123 LGW → YYZ Jul 11, 12:10 UTCJul 11, 19:35 UTC7h 25m
2026-07-11 TSC122 - Jul 11, 08:30 UTCJul 11, 10:00 UTC1h 30m
2026-07-11 TSC122 - Jul 11, 03:20 UTCJul 11, 05:01 UTC1h 40m
2026-07-10 TSC765 OPO → YYZ Jul 10, 13:05 UTCJul 10, 20:40 UTC7h 35m
2026-07-10 TSC764 YYZ → OPO Jul 10, 04:15 UTCJul 10, 10:40 UTC6h 25m
2026-07-09 TSC283 LGW → YYZ Jul 9, 09:35 UTCJul 9, 17:15 UTC7h 40m
2026-07-09 TSC282 YYZ → LGW Jul 9, 00:15 UTCJul 9, 07:05 UTC6h 50m
2026-07-08 TSC309 - Jul 8, 12:50 UTCJul 8, 21:50 UTC9h 0m
2026-07-08 TSC308 YYZ → FCO Jul 8, 02:25 UTCJul 8, 10:55 UTC8h 30m
2026-07-07 TSC765 OPO → YYZ Jul 7, 13:30 UTCJul 7, 20:35 UTC7h 5m
2026-07-07 TSC764 - Jul 7, 04:50 UTCJul 7, 11:35 UTC6h 45m
2026-07-06 TSC481 LIS → YYZ Jul 6, 12:00 UTCJul 6, 19:35 UTC7h 35m
2026-07-06 TSC480 YYZ → LIS Jul 6, 02:00 UTCJul 6, 08:30 UTC6h 30m
2026-07-05 TSC309 - Jul 5, 12:55 UTCJul 5, 22:15 UTC9h 20m
2026-07-05 TSC308 YYZ → FCO Jul 5, 02:00 UTCJul 5, 09:45 UTC7h 45m
2026-07-04 TSC309 - Jul 4, 20:30 UTCJul 4, 22:05 UTC1h 35m
2026-07-04 TSC309 - Jul 4, 12:50 UTCJul 4, 20:20 UTC7h 30m
2026-07-04 TSC308 YYZ → FCO Jul 4, 02:15 UTCJul 4, 10:15 UTC8h 0m
2026-07-03 TSC123 LGW → YYZ Jul 3, 14:00 UTCJul 3, 21:50 UTC7h 50m
2026-07-03 TSC122 YYZ → LGW Jul 3, 05:35 UTCJul 3, 12:05 UTC6h 30m
2026-07-02 TSC765 OPO → YYZ Jul 2, 18:10 UTCJul 3, 01:35 UTC7h 25m
2026-07-02 TSC764 YYZ → OPO Jul 2, 08:50 UTCJul 2, 15:30 UTC6h 40m
2026-07-01 TSC123 LGW → YYZ Jul 1, 14:30 UTCJul 1, 23:00 UTC8h 30m
2026-07-01 TSC122 YYZ → LGW Jul 1, 05:35 UTCJul 1, 12:15 UTC6h 40m
2026-06-30 TSC123 LGW → YYZ Jun 30, 13:20 UTCJun 30, 20:50 UTC7h 30m
2026-06-30 TSC122 YYZ → LGW Jun 30, 04:15 UTCJun 30, 10:50 UTC6h 35m
2026-06-29 TSC309 - Jun 29, 16:19 UTCJun 30, 01:25 UTC9h 5m
2026-06-29 TSC308 YYZ → FCO Jun 29, 02:09 UTCJun 29, 10:04 UTC7h 55m
2026-06-28 TSC309 - Jun 28, 12:55 UTCJun 28, 21:34 UTC8h 40m
2026-06-28 TSC308 YYZ → FCO Jun 28, 02:20 UTCJun 28, 10:19 UTC8h 0m
2026-06-27 TSC309 - Jun 27, 12:29 UTCJun 27, 21:25 UTC8h 55m
2026-06-27 TSC308 - Jun 27, 02:09 UTCJun 27, 10:10 UTC8h 0m
2026-06-26 TSC309 - Jun 26, 14:29 UTCJun 26, 23:25 UTC8h 55m
2026-06-26 TSC308 YYZ → FCO Jun 26, 03:24 UTCJun 26, 11:30 UTC8h 5m
2026-06-25 TSC283 LGW → YYZ Jun 25, 09:14 UTCJun 25, 16:45 UTC7h 30m
2026-06-25 TSC282 YYZ → LGW Jun 25, 00:40 UTCJun 25, 07:05 UTC6h 25m
2026-06-24 TSC309 - Jun 24, 12:54 UTCJun 24, 21:54 UTC9h 0m
2026-06-24 TSC308 - Jun 24, 02:20 UTCJun 24, 10:19 UTC8h 0m
2026-06-23 TSC481 LIS → YYZ Jun 23, 11:19 UTCJun 23, 19:04 UTC7h 45m
2026-06-23 TSC480 YYZ → LIS Jun 23, 01:59 UTCJun 23, 08:25 UTC6h 25m
2026-06-22 TSC309 - Jun 22, 12:40 UTCJun 22, 21:45 UTC9h 5m
2026-06-22 TSC308 YYZ → FCO Jun 22, 02:00 UTCJun 22, 10:15 UTC8h 15m
2026-06-21 TSC309 - Jun 21, 13:00 UTCJun 21, 21:54 UTC8h 55m
2026-06-21 TSC308 - Jun 21, 02:40 UTCJun 21, 10:44 UTC8h 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 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?
No active broadcast right now. Last signal was 1h ago.
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.