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sensors Mode-S transponder

C051D1

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GEZO · AIRBUS A-321 · operated by Air Transat A T Inc.

Hex
C051D1
Octal
60050721
Decimal
12,603,857
Country
CA
Tail
C-GEZO
Type
A321
Broadcasting now · callsign TSC551 · 20,200 ft
Flights observed
215
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 21:20 UTC

Current position

C051D1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C051D1 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
TSC327 Air Transat 25 2026-07-24
TSC326 Air Transat 25 2026-07-24
TSC187 - 8 2026-07-13
TSC538 Air Transat 7 2026-07-26
TSC186 Air Transat 7 2026-07-22
TSC653 Air Transat 6 2026-04-16
TSC650 Air Transat 6 2026-04-17
TSC539 Air Transat 6 2026-07-26
TSC651 Air Transat 5 2026-04-17
TSC398 Air Transat 5 2026-05-24
TSC739 Air Transat 4 2026-07-25
TSC652 Air Transat 4 2026-05-10
TSC426 - 4 2026-07-05
TSC153 - 4 2026-06-22
TSC922 - 3 2026-04-13
TSC751 Air Transat 3 2026-07-24
TSC741 - 3 2026-07-16
TSC684 Air Transat 3 2026-04-27
TSC637 Air Transat 3 2026-04-30
TSC621 - 3 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TSC539 CUN → YUL Jul 26, 17:00 UTCJul 26, 21:10 UTC4h 10m
2026-07-26 TSC538 YUL → CUN Jul 26, 11:50 UTCJul 26, 15:40 UTC3h 50m
2026-07-25 TSC739 FDF → YUL Jul 25, 18:20 UTCJul 25, 22:05 UTC3h 45m
2026-07-25 TSC739 FDF → YUL Jul 25, 17:25 UTCJul 25, 17:35 UTC10m
2026-07-25 TSC739 FDF → YUL Jul 25, 15:50 UTCJul 25, 15:55 UTC5m
2026-07-25 TSC738 YUL → FDF Jul 25, 11:15 UTCJul 25, 15:10 UTC3h 55m
2026-07-24 TSC751 YYZ → YUL Jul 24, 23:40 UTCJul 25, 00:35 UTC55m
2026-07-24 TSC327 CUN → YYZ Jul 24, 16:25 UTCJul 24, 20:00 UTC3h 35m
2026-07-24 TSC326 YYZ → CUN Jul 24, 11:20 UTCJul 24, 14:45 UTC3h 25m
2026-07-23 TSC327 CUN → YYZ Jul 23, 16:25 UTCJul 23, 20:05 UTC3h 40m
2026-07-23 TSC326 YYZ → CUN Jul 23, 11:20 UTCJul 23, 14:45 UTC3h 25m
2026-07-22 TSC186 YUL → LRM Jul 22, 13:25 UTCJul 22, 23:00 UTC9h 35m
2026-07-21 TSC327 - Jul 21, 16:35 UTCJul 21, 20:45 UTC4h 10m
2026-07-21 TSC326 YYZ → CUN Jul 21, 11:35 UTCJul 21, 15:10 UTC3h 35m
2026-07-20 TSC410 YUL → CDG Jul 20, 20:30 UTCJul 20, 21:20 UTC50m
2026-07-19 TSC771 YYZ → YUL Jul 19, 23:15 UTCJul 20, 00:10 UTC55m
2026-07-19 TSC470 YUL → YYZ Jul 19, 20:25 UTCJul 19, 21:20 UTC55m
2026-07-18 TSC894 YUL → PTP Jul 18, 11:15 UTCJul 18, 21:30 UTC10h 15m
2026-07-17 TSC751 YYZ → YUL Jul 17, 23:55 UTCJul 18, 00:50 UTC55m
2026-07-17 TSC327 - Jul 17, 16:34 UTCJul 17, 20:20 UTC3h 45m
2026-07-17 TSC326 YYZ → CUN Jul 17, 11:20 UTCJul 17, 14:50 UTC3h 30m
2026-07-17 TSC51 YUL → ENV Jul 17, 01:29 UTCJul 17, 02:25 UTC55m
2026-07-16 TSC741 YYZ → YUL Jul 16, 23:25 UTCJul 17, 00:14 UTC50m
2026-07-16 TSC327 CUN → YYZ Jul 16, 16:30 UTCJul 16, 20:09 UTC3h 40m
2026-07-16 TSC326 YYZ → CUN Jul 16, 11:15 UTCJul 16, 14:45 UTC3h 30m
2026-07-16 TSC159 - Jul 16, 01:15 UTCJul 16, 04:15 UTC3h 0m
2026-07-15 TSC158 - Jul 15, 17:20 UTCJul 15, 17:30 UTC10m
2026-07-15 TSC158 - Jul 15, 11:00 UTCJul 15, 13:40 UTC2h 40m
2026-07-14 TSC327 CUN → YYZ Jul 14, 16:30 UTCJul 14, 20:05 UTC3h 35m
2026-07-14 TSC326 YYZ → CUN Jul 14, 11:20 UTCJul 14, 14:50 UTC3h 30m
2026-07-13 TSC187 YYZ → YYZ Jul 13, 13:05 UTCJul 13, 22:45 UTC9h 40m
2026-07-12 TSC186 YYZ → YYZ Jul 12, 13:05 UTCJul 12, 23:05 UTC10h 0m
2026-07-11 TSC187 YYZ → YYZ Jul 11, 13:10 UTCJul 11, 23:20 UTC10h 10m
2026-07-10 TSC327 - Jul 10, 16:30 UTCJul 10, 20:15 UTC3h 45m
2026-07-10 TSC326 YYZ → CUN Jul 10, 11:20 UTCJul 10, 14:55 UTC3h 35m
2026-07-09 TSC327 CUN → YYZ Jul 9, 16:30 UTCJul 9, 20:20 UTC3h 50m
2026-07-09 TSC326 YYZ → CUN Jul 9, 11:20 UTCJul 9, 14:50 UTC3h 30m
2026-07-08 TSC186 YYZ → YYZ Jul 8, 13:05 UTCJul 8, 23:05 UTC10h 0m
2026-07-07 TSC327 CUN → YYZ Jul 7, 16:35 UTCJul 7, 19:55 UTC3h 20m
2026-07-07 TSC326 YYZ → CUN Jul 7, 11:25 UTCJul 7, 15:05 UTC3h 40m
2026-07-06 TSC327 CUN → YYZ Jul 6, 16:30 UTCJul 6, 20:00 UTC3h 30m
2026-07-06 TSC326 YYZ → CUN Jul 6, 11:15 UTCJul 6, 14:55 UTC3h 40m
2026-07-06 TSC427 CUN → YYZ Jul 6, 02:45 UTCJul 6, 06:05 UTC3h 20m
2026-07-05 TSC426 YYZ → CUN Jul 5, 21:40 UTCJul 6, 01:15 UTC3h 35m
2026-07-05 TSC327 CUN → YYZ Jul 5, 16:30 UTCJul 5, 20:00 UTC3h 30m
2026-07-05 TSC326 YYZ → CUN Jul 5, 11:25 UTCJul 5, 15:00 UTC3h 35m
2026-07-04 TSC186 YYZ → YYZ Jul 4, 13:15 UTCJul 4, 22:55 UTC9h 40m
2026-07-03 TSC327 CUN → YYZ Jul 3, 16:25 UTCJul 3, 20:05 UTC3h 40m
2026-07-03 TSC326 YYZ → CUN Jul 3, 11:15 UTCJul 3, 14:45 UTC3h 30m
2026-07-02 TSC187 LRM → YUL Jul 2, 13:15 UTCJul 2, 23:20 UTC10h 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-GEZO page for operator, model, and routing details .

Mode-S C051D1 frequently asked

What is Mode-S code C051D1?
C051D1 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GEZO.
Where is Mode-S C051D1 registered?
Mode-S code C051D1 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C051D1 broadcasting right now?
Yes. Mode-S C051D1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C051D1, octal 60050721, decimal 12,603,857.
What flights does C051D1 operate?
Mode-S C051D1 has broadcast 20 distinct callsigns, including TSC327, TSC326, TSC187, TSC538, TSC186.