Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

C03C05

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C03C05
Octal
60036005
Decimal
12,598,277
Country
CA
Tail
C-FWSY
Type
B737
No current signal · last broadcast 2h ago
Flights observed
281
Distinct callsigns
20
Country
CA
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S C03C05.

Country allocation

The ICAO 24-bit address C03C05 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 - 10 2026-07-04
WJA641 - 5 2026-06-19
WJA626 WestJet 4 2026-06-19
WJA577 - 4 2026-06-28
WJA123 - 4 2026-06-21
WJA831 - 3 2026-04-15
WJA830 - 3 2026-04-14
WJA782 WestJet 3 2026-06-17
WJA615 WestJet 3 2026-05-22
WJA612 - 3 2026-07-13
WJA518 WestJet 3 2026-06-16
WJA476 - 3 2026-07-08
WJA290 - 3 2026-07-06
WJA282 - 3 2026-07-08
WJA268 WestJet 3 2026-06-10
WJA264 WestJet 3 2026-05-17
WJA2587 WestJet 3 2026-04-16
WJA223 WestJet 3 2026-04-27
WJA2229 - 3 2026-07-04
WJA2046 - 3 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 WJA612 - Jul 13, 17:40 UTCJul 13, 20:55 UTC3h 15m
2026-07-13 WJA612 YYC → YOW Jul 13, 17:38 UTCJul 14, 14:30 UTC20h 53m
2026-07-13 WJA669 - Jul 13, 10:50 UTCJul 13, 16:10 UTC5h 20m
2026-07-13 WJA580 - Jul 13, 05:10 UTCJul 13, 09:05 UTC3h 55m
2026-07-12 WJA691 - Jul 12, 22:20 UTCJul 13, 02:30 UTC4h 10m
2026-07-12 WJA612 - Jul 12, 17:40 UTCJul 12, 21:00 UTC3h 20m
2026-07-12 WJA669 - Jul 12, 11:01 UTCJul 12, 16:25 UTC5h 25m
2026-07-12 WJA580 - Jul 12, 05:15 UTCJul 12, 09:25 UTC4h 10m
2026-07-11 WJA312 - Jul 11, 22:20 UTCJul 11, 23:20 UTC1h 0m
2026-07-11 WJA303 - Jul 11, 15:50 UTCJul 11, 17:15 UTC1h 25m
2026-07-10 WJA1571 DEN → YYC Jul 10, 20:20 UTCJul 10, 22:20 UTC2h 0m
2026-07-10 WJA1571 DEN → YYC Jul 10, 20:19 UTCJul 11, 17:20 UTC21h 2m
2026-07-10 WJA1570 YYC → DEN Jul 10, 16:55 UTCJul 10, 18:50 UTC1h 55m
2026-07-09 WJA675 - Jul 9, 23:15 UTCJul 10, 04:35 UTC5h 20m
2026-07-09 WJA670 - Jul 9, 17:30 UTCJul 9, 21:35 UTC4h 5m
2026-07-08 WJA476 - Jul 8, 23:40 UTCJul 9, 00:30 UTC50m
2026-07-08 WJA476 YXX → YYC Jul 8, 23:36 UTCJul 9, 23:15 UTC23h 40m
2026-07-08 WJA475 - Jul 8, 20:35 UTCJul 8, 21:35 UTC1h 0m
2026-07-08 WJA110 - Jul 8, 17:55 UTCJul 8, 18:55 UTC1h 0m
2026-07-08 WJA107 YYC → YVR Jul 8, 14:40 UTCJul 8, 15:50 UTC1h 10m
2026-07-08 WJA282 - Jul 8, 03:45 UTCJul 8, 04:45 UTC1h 0m
2026-07-08 WJA271 - Jul 8, 01:00 UTCJul 8, 02:10 UTC1h 10m
2026-07-07 WJA1023 - Jul 7, 20:30 UTCJul 7, 23:00 UTC2h 30m
2026-07-07 WJA1020 - Jul 7, 16:10 UTCJul 7, 19:05 UTC2h 55m
2026-07-06 WJA290 YYC → YYB Jul 6, 15:29 UTCJul 7, 00:10 UTC8h 41m
2026-07-06 WJA193 YYC → YLW Jul 6, 04:15 UTCJul 6, 05:05 UTC50m
2026-07-06 WJA193 YYC → YLW Jul 6, 04:15 UTCJul 7, 00:10 UTC19h 55m
2026-07-05 WJA633 YYZ → YYC Jul 5, 13:15 UTCJul 5, 17:15 UTC4h 0m
2026-07-05 WJA650 YYC → YYZ Jul 5, 00:35 UTCJul 5, 03:40 UTC3h 5m
2026-07-04 WJA1811 MSP → YYC Jul 4, 20:15 UTCJul 4, 22:50 UTC2h 35m
2026-07-04 WJA1810 YYC → MSP Jul 4, 16:30 UTCJul 4, 18:40 UTC2h 10m
2026-07-04 WJA2229 - Jul 4, 07:35 UTCJul 4, 12:30 UTC4h 55m
2026-07-04 WJA2228 - Jul 4, 05:55 UTCJul 4, 06:05 UTC10m
2026-07-04 WJA2228 - Jul 4, 01:25 UTCJul 4, 03:50 UTC2h 25m
2026-07-03 WJA643 YYZ → YYC Jul 3, 19:00 UTCJul 3, 22:50 UTC3h 50m
2026-07-03 WJA620 YYC → YYZ Jul 3, 13:15 UTCJul 3, 16:30 UTC3h 15m
2026-07-03 WJA1093 LAS → YYC Jul 3, 01:15 UTCJul 3, 03:35 UTC2h 20m
2026-07-02 WJA1090 YYC → LAS Jul 2, 21:35 UTCJul 3, 00:05 UTC2h 30m
2026-07-02 WJA512 YYJ → YEG Jul 2, 02:42 UTCJul 3, 01:15 UTC22h 33m
2026-07-01 WJA1530 - Jul 1, 15:50 UTCJul 1, 18:05 UTC2h 15m
2026-07-01 WJA1530 YEG → MSP Jul 1, 15:47 UTCJul 2, 15:15 UTC23h 28m
2026-06-30 WJA4007 YFI → YEG Jun 30, 21:40 UTCJun 30, 22:10 UTC30m
2026-06-30 WJA4006 YEG → YFI Jun 30, 17:30 UTCJun 30, 18:00 UTC30m
2026-06-30 WJA144 YYC → YEG Jun 30, 16:05 UTCJun 30, 16:35 UTC30m
2026-06-30 WJA2229 MEX → YYC Jun 30, 08:05 UTCJun 30, 13:00 UTC4h 55m
2026-06-30 WJA2228 AZP → MEX Jun 30, 06:10 UTCJun 30, 06:20 UTC10m
2026-06-30 WJA2228 - Jun 30, 01:30 UTCJun 30, 05:25 UTC3h 55m
2026-06-29 WJA151 - Jun 29, 22:35 UTCJun 29, 23:05 UTC30m
2026-06-29 WJA148 - Jun 29, 20:40 UTCJun 29, 20:59 UTC20m
2026-06-29 WJA474 - Jun 29, 17:55 UTCJun 29, 18:55 UTC1h 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-FWSY page for operator, model, and routing details .

Mode-S C03C05 frequently asked

What is Mode-S code C03C05?
C03C05 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FWSY.
Where is Mode-S C03C05 registered?
Mode-S code C03C05 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C03C05 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C03C05, octal 60036005, decimal 12,598,277.
What flights does C03C05 operate?
Mode-S C03C05 has broadcast 20 distinct callsigns, including WJA2228, WJA641, WJA626, WJA577, WJA123.