Apparatus

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sensors Mode-S transponder

C021F6

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FMWJ · BOEING 737-700 · operated by Westjet

Hex
C021F6
Octal
60020766
Decimal
12,591,606
Country
CA
Tail
C-FMWJ
Type
B737
No current signal · last broadcast 2d ago
Flights observed
257
Distinct callsigns
20
Country
CA
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S C021F6.

Country allocation

The ICAO 24-bit address C021F6 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
WJA690 WestJet 6 2026-07-19
WJA222 - 6 2026-07-16
WJA1424 WestJet 6 2026-07-24
WJA585 - 5 2026-07-15
WJA312 WestJet 5 2026-07-23
WJA227 - 5 2026-07-16
WJA193 WestJet 5 2026-05-17
WJA1624 WestJet 5 2026-06-02
WJA1571 - 5 2026-07-06
WJA123 - 5 2026-07-06
WJA669 WestJet 4 2026-07-07
WJA594 - 4 2026-06-21
WJA1570 - 4 2026-07-06
WJA790 WestJet 3 2026-07-25
WJA615 WestJet 3 2026-07-19
WJA580 - 3 2026-07-07
WJA526 WestJet 3 2026-07-21
WJA487 - 3 2026-07-11
WJA314 - 3 2026-07-07
WJA309 WestJet 3 2026-06-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WJA710 YVR → YYZ Jul 26, 16:35 UTCJul 26, 20:15 UTC3h 40m
2026-07-26 WJA301 YQB → YYC Jul 26, 13:00 UTCJul 26, 14:15 UTC1h 15m
2026-07-25 WJA790 YEG → YQM Jul 25, 16:40 UTCJul 25, 20:30 UTC3h 50m
2026-07-25 WJA790 YEG → YQM Jul 25, 16:37 UTCJul 26, 14:25 UTC21h 49m
2026-07-24 WJA1424 YEG → LAX Jul 24, 19:36 UTCJul 25, 18:15 UTC22h 39m
2026-07-24 WJA819 YYT → YEG Jul 24, 11:54 UTCJul 25, 03:00 UTC15h 6m
2026-07-23 WJA312 YLW → YEG Jul 23, 22:25 UTCJul 24, 21:30 UTC23h 5m
2026-07-23 WJA819 YYT → YEG Jul 23, 12:05 UTCJul 24, 09:50 UTC21h 45m
2026-07-23 WJA818 YVR → YYZ Jul 23, 05:37 UTCJul 24, 05:30 UTC23h 53m
2026-07-22 WJA1424 YEG → LAX Jul 22, 19:40 UTCJul 22, 22:50 UTC3h 10m
2026-07-22 WJA1424 YEG → LAX Jul 22, 19:35 UTCJul 23, 17:50 UTC22h 15m
2026-07-21 WJA506 YYJ → YEG Jul 21, 21:45 UTCJul 21, 22:55 UTC1h 10m
2026-07-21 WJA505 YYZ → YXE Jul 21, 19:10 UTCJul 21, 20:35 UTC1h 25m
2026-07-21 WJA526 YLW → YEG Jul 21, 16:05 UTCJul 21, 16:55 UTC50m
2026-07-21 WJA181 YYC → YLW Jul 21, 14:15 UTCJul 21, 15:00 UTC45m
2026-07-20 WJA276 YXS → YYC Jul 20, 01:25 UTCJul 20, 02:30 UTC1h 5m
2026-07-19 WJA269 YWG → YYC Jul 19, 23:05 UTCJul 20, 00:15 UTC1h 10m
2026-07-19 WJA615 YOW → YVR Jul 19, 17:25 UTCJul 19, 21:40 UTC4h 15m
2026-07-19 WJA690 YVR → YXE Jul 19, 15:20 UTCJul 19, 16:10 UTC50m
2026-07-19 WJA690 YVR → YXE Jul 19, 12:50 UTCJul 19, 14:55 UTC2h 5m
2026-07-19 WJA491 - Jul 19, 03:20 UTCJul 19, 05:15 UTC1h 55m
2026-07-19 WJA496 YEG → YWG Jul 19, 00:50 UTCJul 19, 02:20 UTC1h 30m
2026-07-18 WJA1531 MSP → YEG Jul 18, 20:05 UTCJul 18, 22:35 UTC2h 30m
2026-07-18 WJA1530 YEG → MSP Jul 18, 15:55 UTCJul 18, 18:05 UTC2h 10m
2026-07-17 WJA747 YXU → YYC Jul 17, 12:10 UTCJul 18, 02:29 UTC14h 20m
2026-07-16 WJA1024 - Jul 16, 21:05 UTCJul 17, 00:10 UTC3h 5m
2026-07-16 WJA1024 YYC → LAX Jul 16, 21:04 UTCJul 17, 16:15 UTC19h 11m
2026-07-16 WJA227 YWG → YYC Jul 16, 17:10 UTCJul 16, 19:05 UTC1h 55m
2026-07-16 WJA222 YYC → YWG Jul 16, 14:25 UTCJul 16, 16:00 UTC1h 35m
2026-07-15 WJA749 - Jul 15, 22:05 UTCJul 16, 01:55 UTC3h 50m
2026-07-15 WJA746 - Jul 15, 17:20 UTCJul 15, 20:25 UTC3h 5m
2026-07-15 WJA585 - Jul 15, 00:45 UTCJul 15, 04:25 UTC3h 40m
2026-07-14 WJA582 - Jul 14, 20:20 UTCJul 14, 23:25 UTC3h 4m
2026-07-14 WJA186 - Jul 14, 18:10 UTCJul 14, 18:50 UTC40m
2026-07-14 WJA183 - Jul 14, 15:45 UTCJul 14, 16:35 UTC50m
2026-07-14 WJA262 SSW → YYC Jul 14, 13:00 UTCJul 14, 14:00 UTC1h 0m
2026-07-14 WJA273 - Jul 14, 05:10 UTCJul 14, 06:25 UTC1h 15m
2026-07-13 WJA783 YQT → YYC Jul 13, 23:45 UTCJul 14, 02:25 UTC2h 40m
2026-07-13 WJA782 YYC → YQT Jul 13, 20:25 UTCJul 13, 22:30 UTC2h 5m
2026-07-13 WJA227 YWG → YYC Jul 13, 17:05 UTCJul 13, 18:55 UTC1h 50m
2026-07-13 WJA222 YYC → YWG Jul 13, 14:25 UTCJul 13, 15:55 UTC1h 30m
2026-07-12 WJA813 - Jul 12, 21:25 UTCJul 13, 02:25 UTC5h 0m
2026-07-12 WJA812 - Jul 12, 15:55 UTCJul 12, 19:45 UTC3h 50m
2026-07-12 WJA157 - Jul 12, 00:40 UTCJul 12, 01:15 UTC35m
2026-07-11 WJA487 - Jul 11, 21:20 UTCJul 11, 23:10 UTC1h 50m
2026-07-11 WJA228 YYC → YWG Jul 11, 18:30 UTCJul 11, 20:05 UTC1h 35m
2026-07-11 WJA225 YWG → YYC Jul 11, 15:10 UTCJul 11, 17:00 UTC1h 50m
2026-07-11 WJA482 - Jul 11, 12:20 UTCJul 11, 14:00 UTC1h 40m
2026-07-11 WJA512 - Jul 11, 02:50 UTCJul 11, 04:01 UTC1h 10m
2026-07-11 WJA511 - Jul 11, 00:30 UTCJul 11, 02:00 UTC1h 30m

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

Mode-S C021F6 frequently asked

What is Mode-S code C021F6?
C021F6 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FMWJ.
Where is Mode-S C021F6 registered?
Mode-S code C021F6 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C021F6 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C021F6, octal 60020766, decimal 12,591,606.
What flights does C021F6 operate?
Mode-S C021F6 has broadcast 20 distinct callsigns, including WJA690, WJA222, WJA1424, WJA585, WJA312.