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
Broadcasting now · callsign WJA87 · 33,000 ft
Flights observed
181
Distinct callsigns
19
Country
CA
Last broadcast
1h ago

Current position

C079CE is currently broadcasting. Map zoomed to live position.

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
WJA1 - 19 2026-07-10
WJA9 - 18 2026-07-08
WJA2 - 18 2026-07-10
WJA10 - 16 2026-07-08
WJA87 - 12 2026-07-14
WJA25 - 10 2026-07-02
WJA24 - 10 2026-07-02
WJA86 - 9 2026-07-13
WJA2201 WestJet 9 2026-04-25
WJA18 - 9 2026-07-03
WJA81 WestJet 8 2026-06-10
WJA2200 WestJet 8 2026-04-25
WJA80 WestJet 7 2026-06-09
WJA29 WestJet 7 2026-06-27
WJA28 WestJet 7 2026-06-27
WJA17 - 7 2026-07-03
WJA21 - 3 2026-07-11
WJA4109 WestJet 2 2026-05-10
WJA20 - 2 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-06-30 WJA25 - Jun 30, 15:45 UTCJul 1, 01:20 UTC9h 35m
2026-06-30 WJA24 YYC → FCO Jun 30, 03:50 UTCJun 30, 13:05 UTC9h 15m
2026-06-29 WJA87 ICN → YYC Jun 29, 11:55 UTCJun 29, 21:39 UTC9h 45m
2026-06-28 WJA86 YYC → ICN Jun 28, 22:34 UTCJun 29, 09:34 UTC11h 0m
2026-06-28 WJA18 - Jun 28, 02:14 UTCJun 28, 03:00 UTC45m
2026-06-28 WJA18 YYC → DUB Jun 28, 02:14 UTCJun 29, 01:29 UTC23h 16m
2026-06-27 WJA29 BCN → YYC Jun 27, 13:35 UTCJun 27, 22:40 UTC9h 5m
2026-06-27 WJA28 YYC → BCN Jun 27, 01:19 UTCJun 27, 10:40 UTC9h 20m
2026-06-26 WJA17 - Jun 26, 12:10 UTCJun 26, 19:55 UTC7h 45m
2026-06-26 WJA18 YYC → DUB Jun 26, 02:05 UTCJun 26, 09:39 UTC7h 35m
2026-06-25 WJA87 - Jun 25, 13:35 UTCJun 25, 23:24 UTC9h 50m
2026-06-25 WJA87 ICN → YYC Jun 25, 13:30 UTCJun 26, 09:39 UTC20h 10m
2026-06-25 WJA86 YYC → ICN Jun 25, 00:24 UTCJun 25, 11:19 UTC10h 55m
2026-06-24 WJA9 - Jun 24, 13:30 UTCJun 24, 15:00 UTC1h 30m
2026-06-24 WJA9 CDG → YYC Jun 24, 13:29 UTCJun 25, 11:25 UTC21h 56m
2026-06-24 WJA10 YYC → CDG Jun 24, 01:30 UTCJun 24, 09:55 UTC8h 25m
2026-06-23 WJA17 EDI → YYZ Jun 23, 12:20 UTCJun 23, 19:59 UTC7h 40m
2026-06-23 WJA18 YYC → LHR Jun 23, 02:09 UTCJun 23, 09:45 UTC7h 35m
2026-06-22 WJA1 - Jun 22, 13:25 UTCJun 22, 21:35 UTC8h 10m
2026-06-22 WJA2 YYC → LHR Jun 22, 03:10 UTCJun 22, 11:09 UTC8h 0m
2026-06-21 WJA1 - Jun 21, 13:24 UTCJun 21, 21:44 UTC8h 20m
2026-06-21 WJA2 YYC → LHR Jun 21, 02:45 UTCJun 21, 10:29 UTC7h 45m
2026-06-20 WJA29 BCN → YYC Jun 20, 14:24 UTCJun 20, 23:50 UTC9h 25m
2026-06-20 WJA28 YYC → BCN Jun 20, 01:14 UTCJun 20, 10:34 UTC9h 20m
2026-06-19 WJA1 - Jun 19, 13:14 UTCJun 19, 21:09 UTC7h 55m
2026-06-19 WJA1 LHR → YYC Jun 19, 13:12 UTCJun 20, 10:39 UTC21h 28m

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?
Yes. Mode-S C079CE is currently airborne.
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 WJA1, WJA9, WJA2, WJA10, WJA87.