Apparatus

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sensors Mode-S transponder

C079A1

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C079A1
Octal
60074641
Decimal
12,614,049
Country
CA
Tail
C-GUBO
Type
A333
No current signal · last broadcast 31m ago
Flights observed
100
Distinct callsigns
20
Country
CA
Last broadcast
31m ago

Last known position

Most recent position reported by Mode-S C079A1.

Country allocation

The ICAO 24-bit address C079A1 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
TSC110 Air Transat 28 2026-05-28
TSC111 Air Transat 24 2026-05-28
TSC399 Air Transat 7 2026-04-21
TSC398 Air Transat 7 2026-05-15
TSC939 Air Transat 4 2026-04-25
TSC252 Air Transat 4 2026-04-29
TSC253 Air Transat 3 2026-04-29
TSC691 Air Transat 2 2026-05-29
TSC690 Air Transat 2 2026-05-28
TSC681 Air Transat 2 2026-05-30
TSC680 Air Transat 2 2026-05-29
TSC539 Air Transat 2 2026-04-28
TSC538 Air Transat 2 2026-04-28
TSC426 Air Transat 2 2026-04-14
TSC251 Air Transat 2 2026-05-24
TSC250 Air Transat 2 2026-05-23
TSC938 Air Transat 1 2026-04-24
TSC498 Air Transat 1 2026-04-18
TSC403 Air Transat 1 2026-05-19
TSC402 Air Transat 1 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 TSC681 LIS → YUL May 30, 07:45 UTCMay 30, 08:15 UTC30m
2026-05-29 TSC680 YUL → LIS May 29, 23:30 UTCMay 30, 05:35 UTC6h 5m
2026-05-29 TSC691 ATH → YUL May 29, 09:20 UTCMay 29, 18:55 UTC9h 35m
2026-05-28 TSC690 YUL → ATH May 28, 21:35 UTCMay 29, 06:35 UTC9h 0m
2026-05-28 TSC111 CDG → YUL May 28, 10:40 UTCMay 28, 17:30 UTC6h 50m
2026-05-28 TSC110 YUL → CDG May 28, 02:00 UTCMay 28, 08:40 UTC6h 40m
2026-05-27 TSC111 CDG → YUL May 27, 10:40 UTCMay 27, 17:35 UTC6h 55m
2026-05-27 TSC110 YUL → CDG May 27, 01:49 UTCMay 27, 08:25 UTC6h 36m
2026-05-26 TSC111 CDG → YUL May 26, 10:39 UTCMay 26, 17:35 UTC6h 55m
2026-05-26 TSC110 YUL → CDG May 26, 01:40 UTCMay 26, 08:04 UTC6h 25m
2026-05-25 TSC111 CDG → YUL May 25, 10:45 UTCMay 25, 18:00 UTC7h 15m
2026-05-25 TSC110 YUL → CDG May 25, 01:55 UTCMay 25, 08:25 UTC6h 30m
2026-05-24 TSC251 CDG → YUL May 24, 08:10 UTCMay 24, 15:05 UTC6h 55m
2026-05-23 TSC250 YUL → CDG May 23, 23:05 UTCMay 24, 05:30 UTC6h 25m
2026-05-23 TSC251 CDG → YUL May 23, 08:20 UTCMay 23, 15:30 UTC7h 10m
2026-05-22 TSC250 YUL → CDG May 22, 23:15 UTCMay 23, 05:25 UTC6h 9m
2026-05-22 TSC111 CDG → YUL May 22, 10:45 UTCMay 22, 17:35 UTC6h 50m
2026-05-22 TSC110 YUL → CDG May 22, 02:00 UTCMay 22, 08:00 UTC6h 0m
2026-05-21 TSC111 CDG → YUL May 21, 10:55 UTCMay 21, 18:00 UTC7h 5m
2026-05-21 TSC110 YUL → CDG May 21, 03:15 UTCMay 21, 09:10 UTC5h 55m
2026-05-21 TSC110 YUL → CDG May 21, 03:00 UTCMay 21, 03:10 UTC10m
2026-05-20 TSC111 CDG → YUL May 20, 11:10 UTCMay 20, 18:35 UTC7h 25m
2026-05-20 TSC110 YUL → CDG May 20, 01:45 UTCMay 20, 08:10 UTC6h 26m
2026-05-19 TSC403 FCO → YUL May 19, 10:50 UTCMay 19, 19:20 UTC8h 30m
2026-05-19 TSC402 YUL → FCO May 19, 00:45 UTCMay 19, 08:20 UTC7h 35m
2026-05-17 TSC691 ATH → YUL May 17, 08:55 UTCMay 17, 18:35 UTC9h 40m
2026-05-16 TSC690 YUL → ATH May 16, 21:40 UTCMay 17, 06:20 UTC8h 40m
2026-05-16 TSC111 CDG → YUL May 16, 10:46 UTCMay 16, 17:55 UTC7h 10m
2026-05-16 TSC110 YUL → CDG May 16, 01:50 UTCMay 16, 08:20 UTC6h 31m
2026-05-15 TSC398 YUL → PUJ May 15, 13:40 UTCMay 15, 23:25 UTC9h 44m
2026-05-14 TSC111 CDG → YUL May 14, 10:45 UTCMay 14, 17:45 UTC7h 0m
2026-05-14 TSC110 YUL → CDG May 14, 01:40 UTCMay 14, 08:15 UTC6h 35m
2026-05-13 TSC111 CDG → YUL May 13, 10:40 UTCMay 13, 17:55 UTC7h 15m
2026-05-13 TSC110 YUL → CDG May 13, 01:50 UTCMay 13, 08:25 UTC6h 35m
2026-05-12 TSC111 CDG → YUL May 12, 10:50 UTCMay 12, 18:15 UTC7h 25m
2026-05-12 TSC110 YUL → CDG May 12, 06:25 UTCMay 12, 08:00 UTC1h 35m
2026-05-11 TSC111 CDG → YUL May 11, 10:55 UTCMay 11, 18:00 UTC7h 6m
2026-05-11 TSC110 YUL → CDG May 11, 06:25 UTCMay 11, 08:15 UTC1h 50m
2026-05-11 TSC110 YUL → CDG May 11, 01:45 UTCMay 11, 02:50 UTC1h 5m
2026-05-10 TSC681 LIS → YUL May 10, 07:50 UTCMay 10, 14:30 UTC6h 40m
2026-05-09 TSC680 YUL → LIS May 9, 23:25 UTCMay 10, 05:45 UTC6h 20m
2026-05-09 TSC111 CDG → YUL May 9, 10:45 UTCMay 9, 17:45 UTC7h 0m
2026-05-09 TSC110 YUL → CDG May 9, 06:45 UTCMay 9, 08:35 UTC1h 50m
2026-05-09 TSC110 YUL → CDG May 9, 01:55 UTCMay 9, 03:00 UTC1h 5m
2026-05-08 TSC111 CDG → YUL May 8, 10:39 UTCMay 8, 18:00 UTC7h 21m
2026-05-08 TSC110 YUL → CDG May 8, 01:45 UTCMay 8, 08:19 UTC6h 35m
2026-05-07 TSC111 CDG → YUL May 7, 10:40 UTCMay 7, 17:55 UTC7h 15m
2026-05-07 TSC110 YUL → CDG May 7, 01:45 UTCMay 7, 08:10 UTC6h 25m
2026-05-06 TSC111 CDG → YUL May 6, 10:30 UTCMay 6, 17:45 UTC7h 14m
2026-05-06 TSC110 YUL → CDG May 6, 01:55 UTCMay 6, 08:15 UTC6h 20m

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

Mode-S C079A1 frequently asked

What is Mode-S code C079A1?
C079A1 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GUBO.
Where is Mode-S C079A1 registered?
Mode-S code C079A1 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C079A1 broadcasting right now?
No active broadcast right now. Last signal was 31m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C079A1, octal 60074641, decimal 12,614,049.
What flights does C079A1 operate?
Mode-S C079A1 has broadcast 20 distinct callsigns, including TSC110, TSC111, TSC399, TSC398, TSC939.