Apparatus

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sensors Mode-S transponder

C079CE

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C079CE
Octal
60074716
Decimal
12,614,094
Country
CA
Tail
C-GUDH
Type
B789
No current signal · last broadcast Jul 26, 16:40 UTC
Flights observed
207
Distinct callsigns
19
Country
CA
Last broadcast
Jul 26, 16:40 UTC

Last known position

Most recent position reported by Mode-S C079CE.

Country allocation

The ICAO 24-bit address C079CE 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 19 distinct

Callsign Airline Flights Last seen
WJA9 - 21 2026-07-17
WJA10 - 20 2026-07-17
WJA1 - 19 2026-07-10
WJA2 - 18 2026-07-10
WJA87 WestJet 15 2026-07-26
WJA81 WestJet 12 2026-07-25
WJA86 WestJet 11 2026-07-25
WJA80 WestJet 10 2026-07-24
WJA25 - 10 2026-07-02
WJA24 - 10 2026-07-02
WJA2201 WestJet 9 2026-04-25
WJA18 - 9 2026-07-03
WJA29 WestJet 8 2026-07-22
WJA28 WestJet 8 2026-07-22
WJA2200 WestJet 8 2026-04-25
WJA17 - 7 2026-07-03
WJA21 WestJet 6 2026-07-23
WJA20 - 4 2026-07-23
WJA4109 WestJet 2 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WJA87 ICN → YYC Jul 26, 15:10 UTCJul 26, 16:40 UTC1h 30m
2026-07-25 WJA86 YYC → ICN Jul 25, 22:20 UTCJul 26, 09:20 UTC11h 1m
2026-07-25 WJA81 NRT → YYC Jul 25, 10:10 UTCJul 25, 19:05 UTC8h 55m
2026-07-24 WJA80 YYC → NRT Jul 24, 21:00 UTCJul 25, 06:55 UTC9h 55m
2026-07-24 WJA81 NRT → YYC Jul 24, 09:50 UTCJul 24, 10:25 UTC35m
2026-07-24 WJA81 NRT → YYC Jul 24, 09:49 UTCJul 25, 07:05 UTC21h 16m
2026-07-23 WJA80 YYC → NRT Jul 23, 21:15 UTCJul 24, 07:35 UTC10h 20m
2026-07-23 WJA21 EDI → YYC Jul 23, 11:20 UTCJul 23, 19:05 UTC7h 45m
2026-07-23 WJA21 EDI → YYC Jul 23, 11:16 UTCJul 24, 07:35 UTC20h 19m
2026-07-23 WJA20 YYC → EDI Jul 23, 01:25 UTCJul 23, 08:30 UTC7h 5m
2026-07-22 WJA29 BCN → YYC Jul 22, 13:45 UTCJul 22, 23:20 UTC9h 35m
2026-07-22 WJA28 YYC → BCN Jul 22, 01:15 UTCJul 22, 02:15 UTC1h 0m
2026-07-21 WJA87 ICN → YYC Jul 21, 12:40 UTCJul 21, 22:50 UTC10h 10m
2026-07-20 WJA86 YYC → ICN Jul 20, 22:20 UTCJul 21, 10:15 UTC11h 54m
2026-07-19 WJA81 - Jul 19, 09:35 UTCJul 19, 18:50 UTC9h 15m
2026-07-18 WJA80 YYC → NRT Jul 18, 21:15 UTCJul 19, 06:45 UTC9h 30m
2026-07-18 WJA21 EDI → YYC Jul 18, 11:10 UTCJul 18, 19:10 UTC8h 0m
2026-07-18 WJA20 - Jul 18, 01:30 UTCJul 18, 08:45 UTC7h 16m
2026-07-17 WJA9 CDG → YYC Jul 17, 12:41 UTCJul 18, 11:30 UTC22h 50m
2026-07-17 WJA10 YYC → CDG Jul 17, 01:34 UTCJul 18, 01:30 UTC23h 56m
2026-07-17 WJA10 YYC → CDG Jul 17, 01:35 UTCJul 17, 10:00 UTC8h 25m
2026-07-16 WJA9 - Jul 16, 12:44 UTCJul 16, 21:35 UTC8h 50m
2026-07-16 WJA10 YYC → CDG Jul 16, 01:25 UTCJul 16, 09:30 UTC8h 5m
2026-07-15 WJA9 - Jul 15, 12:40 UTCJul 15, 21:20 UTC8h 40m
2026-07-15 WJA10 YYC → CDG Jul 15, 01:25 UTCJul 15, 09:45 UTC8h 20m
2026-07-14 WJA87 - Jul 14, 13:30 UTCJul 14, 22:55 UTC9h 24m
2026-07-14 WJA87 - Jul 14, 12:40 UTCJul 14, 13:00 UTC20m
2026-07-13 WJA86 YYC → ICN Jul 13, 22:15 UTCJul 14, 09:25 UTC11h 10m
2026-07-12 WJA87 - Jul 12, 11:55 UTCJul 12, 21:45 UTC9h 50m
2026-07-12 WJA87 ICN → YYC Jul 12, 11:54 UTCJul 12, 21:50 UTC9h 57m
2026-07-11 WJA86 YYC → ICN Jul 11, 22:20 UTCJul 12, 09:00 UTC10h 40m
2026-07-11 WJA21 EDI → YYC Jul 11, 12:20 UTCJul 11, 20:10 UTC7h 50m
2026-07-11 WJA20 YYC → EDI Jul 11, 01:10 UTCJul 11, 08:30 UTC7h 20m
2026-07-10 WJA1 LHR → YYC Jul 10, 13:45 UTCJul 10, 22:15 UTC8h 30m
2026-07-10 WJA2 YYC → LHR Jul 10, 02:51 UTCJul 11, 01:30 UTC22h 40m
2026-07-10 WJA2 YYC → LHR Jul 10, 02:55 UTCJul 10, 10:50 UTC7h 55m
2026-07-08 WJA9 - Jul 8, 13:35 UTCJul 8, 22:00 UTC8h 25m
2026-07-08 WJA10 - Jul 8, 02:45 UTCJul 8, 11:10 UTC8h 25m
2026-07-06 WJA1 - Jul 6, 13:20 UTCJul 6, 21:40 UTC8h 20m
2026-07-06 WJA2 YYC → LHR Jul 6, 02:50 UTCJul 6, 10:50 UTC8h 0m
2026-07-05 WJA9 - Jul 5, 12:20 UTCJul 5, 21:35 UTC9h 15m
2026-07-05 WJA10 YYC → CDG Jul 5, 01:25 UTCJul 5, 09:30 UTC8h 5m
2026-07-04 WJA87 ICN → YYC Jul 4, 12:45 UTCJul 4, 22:40 UTC9h 55m
2026-07-03 WJA86 YYC → ICN Jul 3, 23:00 UTCJul 4, 10:30 UTC11h 30m
2026-07-03 WJA17 DUB → YYC Jul 3, 12:15 UTCJul 3, 20:05 UTC7h 50m
2026-07-03 WJA18 YYC → DUB Jul 3, 02:15 UTCJul 3, 09:35 UTC7h 20m
2026-07-02 WJA25 FCO → YYC Jul 2, 13:55 UTCJul 2, 23:55 UTC10h 0m
2026-07-02 WJA24 YYC → FCO Jul 2, 01:20 UTCJul 2, 11:00 UTC9h 40m
2026-07-01 WJA1 - Jul 1, 14:10 UTCJul 1, 22:15 UTC8h 5m
2026-07-01 WJA2 YYC → LHR Jul 1, 03:45 UTCJul 1, 11:45 UTC8h 0m

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

Mode-S C079CE frequently asked

What is Mode-S code C079CE?
C079CE is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GUDH.
Where is Mode-S C079CE registered?
Mode-S code C079CE is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C079CE broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C079CE, octal 60074716, decimal 12,614,094.
What flights does C079CE operate?
Mode-S C079CE has broadcast 19 distinct callsigns, including WJA9, WJA10, WJA1, WJA2, WJA87.