Apparatus

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sensors Mode-S transponder

C07AA4

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-GULN · BOEING 737 MAX 8 · operated by Westjet

Hex
C07AA4
Octal
60075244
Decimal
12,614,308
Country
CA
Tail
C-GULN
Type
B38M
No current signal · last broadcast 7h ago
Flights observed
126
Distinct callsigns
20
Country
CA
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S C07AA4.

Country allocation

The ICAO 24-bit address C07AA4 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
WJA2228 WestJet 5 2026-05-07
WJA4476 - 4 2026-04-13
WJA567 WestJet 3 2026-05-24
WJA558 WestJet 3 2026-05-24
WJA519 WestJet 3 2026-05-25
WJA514 WestJet 3 2026-05-25
WJA266 WestJet 3 2026-05-21
WJA1091 WestJet 3 2026-05-07
WJA1024 WestJet 3 2026-05-15
WJA801 WestJet 2 2026-04-19
WJA782 WestJet 2 2026-05-11
WJA747 WestJet 2 2026-05-20
WJA616 WestJet 2 2026-04-30
WJA487 WestJet 2 2026-05-22
WJA380 WestJet 2 2026-05-03
WJA349 WestJet 2 2026-05-03
WJA272 WestJet 2 2026-05-28
WJA263 WestJet 2 2026-05-21
WJA2603 WestJet 2 2026-04-27
WJA2560 WestJet 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 WJA2560 YYZ → KIN May 29, 16:20 UTCMay 29, 19:05 UTC2h 45m
2026-05-29 WJA2560 YYZ → KIN May 29, 16:19 UTCMay 30, 01:40 UTC9h 22m
2026-05-28 WJA272 YYZ → YHZ May 28, 20:15 UTCMay 28, 21:00 UTC45m
2026-05-28 WJA272 YYZ → YHZ May 28, 20:14 UTCMay 29, 19:00 UTC22h 47m
2026-05-28 WJA265 YYT → YYC May 28, 17:45 UTCMay 28, 18:55 UTC1h 10m
2026-05-28 WJA559 YXE → YEG May 28, 11:35 UTCMay 28, 15:35 UTC4h 0m
2026-05-28 WJA858 YYC → YXE May 28, 03:10 UTCMay 28, 04:00 UTC50m
2026-05-27 WJA714 YVR → YYZ May 27, 20:35 UTCMay 28, 00:50 UTC4h 15m
2026-05-27 WJA713 YYZ → YVR May 27, 14:25 UTCMay 27, 19:00 UTC4h 35m
2026-05-26 WJA2129 PLS → YYZ May 26, 18:59 UTCMay 26, 22:35 UTC3h 35m
2026-05-26 WJA2129 PLS → YYZ May 26, 18:59 UTCMay 27, 15:00 UTC20h 1m
2026-05-26 WJA2128 YYZ → PLS May 26, 13:34 UTCMay 26, 17:35 UTC4h 0m
2026-05-25 WJA514 YLW → YYZ May 25, 12:29 UTCMay 25, 19:35 UTC7h 6m
2026-05-25 WJA519 YYC → YQQ May 25, 04:04 UTCMay 25, 19:35 UTC15h 31m
2026-05-24 WJA567 YKF → YYC May 24, 21:55 UTCMay 25, 19:35 UTC21h 40m
2026-05-24 WJA558 YEG → YXE May 24, 16:44 UTCMay 25, 14:00 UTC21h 16m
2026-05-24 WJA558 YEG → YXE May 24, 16:45 UTCMay 24, 17:00 UTC15m
2026-05-24 WJA627 YYT → YYZ May 24, 10:40 UTCMay 24, 14:25 UTC3h 45m
2026-05-23 WJA2728 YYZ → PUJ May 23, 18:25 UTCMay 24, 04:00 UTC9h 35m
2026-05-22 WJA487 YYC → YLW May 22, 21:25 UTCMay 22, 23:00 UTC1h 35m
2026-05-22 WJA487 YYC → YLW May 22, 21:23 UTCMay 23, 19:55 UTC22h 32m
2026-05-22 WJA228 YYC → YHZ May 22, 18:30 UTCMay 22, 20:20 UTC1h 50m
2026-05-22 WJA225 YOW → YEG May 22, 15:20 UTCMay 22, 17:05 UTC1h 45m
2026-05-21 WJA230 YYC → YHZ May 21, 20:40 UTCMay 21, 21:00 UTC20m
2026-05-21 WJA266 YEG → YYC May 21, 18:00 UTCMay 21, 19:05 UTC1h 5m
2026-05-21 WJA266 YEG → YYC May 21, 18:00 UTCMay 22, 17:00 UTC23h 0m
2026-05-21 WJA263 YXE → YYC May 21, 15:35 UTCMay 21, 16:45 UTC1h 10m
2026-05-20 WJA1160 YYC → PHX May 20, 16:30 UTCMay 20, 23:10 UTC6h 41m
2026-05-20 WJA747 YXU → YYC May 20, 10:20 UTCMay 20, 23:10 UTC12h 51m
2026-05-19 WJA2200 YYC → MEX May 19, 14:38 UTCMay 20, 13:00 UTC22h 23m
2026-05-19 WJA2200 YYC → MEX May 19, 14:40 UTCMay 19, 19:50 UTC5h 10m
2026-05-18 WJA1610 YYC → MSP May 18, 18:45 UTCMay 18, 21:55 UTC3h 10m
2026-05-18 WJA1610 YYC → MSP May 18, 18:42 UTCMay 19, 17:00 UTC22h 18m
2026-05-18 WJA1593 ATL → YYC May 18, 12:45 UTCMay 18, 17:05 UTC4h 20m
2026-05-18 WJA1992 YYC → ATL May 18, 06:40 UTCMay 18, 10:45 UTC4h 5m
2026-05-17 WJA184 YLW → YYC May 17, 14:52 UTCMay 18, 13:00 UTC22h 9m
2026-05-17 WJA158 YYC → YEG May 17, 01:08 UTCMay 18, 01:00 UTC23h 53m
2026-05-17 WJA158 YYC → YEG May 17, 01:10 UTCMay 17, 01:30 UTC20m
2026-05-16 WJA1591 ATL → YYC May 16, 18:55 UTCMay 16, 23:15 UTC4h 20m
2026-05-16 WJA1590 YYC → ATL May 16, 13:25 UTCMay 16, 17:25 UTC4h 0m
2026-05-16 WJA1027 LAX → YYC May 16, 01:55 UTCMay 16, 04:35 UTC2h 40m
2026-05-15 WJA1024 YYC → LAX May 15, 21:45 UTCMay 16, 00:35 UTC2h 50m
2026-05-15 WJA266 YEG → YYC May 15, 18:15 UTCMay 15, 19:20 UTC1h 5m
2026-05-15 WJA263 YXE → YYC May 15, 15:45 UTCMay 15, 17:00 UTC1h 15m
2026-05-14 WJA673 YHZ → YYC May 14, 21:25 UTCMay 15, 02:20 UTC4h 55m
2026-05-14 WJA668 YYC → YHZ May 14, 15:35 UTCMay 14, 19:55 UTC4h 20m
2026-05-13 WJA2202 YEG → PVR May 13, 15:59 UTCMay 14, 04:40 UTC12h 42m
2026-05-13 WJA2202 YEG → PVR May 13, 16:00 UTCMay 13, 21:00 UTC5h 0m
2026-05-13 WJA514 YLW → YYZ May 13, 12:50 UTCMay 13, 14:00 UTC1h 10m
2026-05-13 WJA519 YYC → YQQ May 13, 04:00 UTCMay 13, 05:15 UTC1h 15m

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

Mode-S C07AA4 frequently asked

What is Mode-S code C07AA4?
C07AA4 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-GULN.
Where is Mode-S C07AA4 registered?
Mode-S code C07AA4 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C07AA4 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C07AA4, octal 60075244, decimal 12,614,308.
What flights does C07AA4 operate?
Mode-S C07AA4 has broadcast 20 distinct callsigns, including WJA2228, WJA4476, WJA567, WJA558, WJA519.