sensors Mode-S transponder

C079D5

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GUDO · BOEING 787-9 Dreamliner · operated by Westjet

Hex
C079D5
Octal
60074725
Decimal
12,614,101
Country
CA
Tail
C-GUDO
Type
B789
Broadcasting now · callsign WJA25 · 26,925 ft
Flights observed
9
Distinct callsigns
3
Country
CA
Last broadcast
12h ago

Current position

C079D5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C079D5 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 3 distinct

Callsign Airline Flights Last seen
WJA9 WestJet 4 2026-04-13
WJA10 - 3 2026-04-13
WJA24 - 2 2026-04-14

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 WJA24 - Apr 14, 09:10 UTCApr 14, 10:20 UTC1h 10m
2026-04-14 WJA24 - Apr 14, 07:30 UTCApr 14, 09:05 UTC1h 35m
2026-04-13 WJA9 CDG → YYC Apr 13, 20:10 UTCApr 13, 20:50 UTC40m
2026-04-13 WJA9 CDG → YYC Apr 13, 16:45 UTCApr 13, 20:10 UTC3h 25m
2026-04-13 WJA9 CDG → YYC Apr 13, 12:20 UTCApr 13, 14:55 UTC2h 35m
2026-04-13 WJA10 - Apr 13, 08:20 UTCApr 13, 09:30 UTC1h 10m
2026-04-13 WJA10 - Apr 13, 07:45 UTCApr 13, 08:15 UTC30m
2026-04-13 WJA10 - Apr 13, 01:15 UTCApr 13, 02:15 UTC1h 1m
2026-04-12 WJA9 CDG → YYC Apr 12, 17:15 UTCApr 12, 19:05 UTC1h 50m

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

Mode-S C079D5 frequently asked

What is Mode-S code C079D5?
C079D5 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GUDO.
Where is Mode-S C079D5 registered?
Mode-S code C079D5 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C079D5 broadcasting right now?
Yes. Mode-S C079D5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C079D5, octal 60074725, decimal 12,614,101.
What flights does C079D5 operate?
Mode-S C079D5 has broadcast 3 distinct callsigns, including WJA9, WJA10, WJA24.