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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
Broadcasting now · callsign WJA1624 · 6,700 ft
Flights observed
311
Distinct callsigns
20
Country
CA
Last broadcast
Jul 25, 12:20 UTC

Current position

C03C05 is currently broadcasting. Map zoomed to live position.

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
WJA612 - 5 2026-07-15
WJA123 - 5 2026-07-16
WJA669 - 4 2026-07-15
WJA626 WestJet 4 2026-06-19
WJA577 - 4 2026-06-28
WJA282 WestJet 4 2026-07-21
WJA1571 - 4 2026-07-16
WJA1469 WestJet 4 2026-07-20
WJA831 - 3 2026-04-15
WJA830 - 3 2026-04-14
WJA782 WestJet 3 2026-06-17
WJA691 - 3 2026-07-15
WJA615 WestJet 3 2026-05-22
WJA580 - 3 2026-07-15
WJA525 - 3 2026-07-18
WJA518 WestJet 3 2026-06-16
WJA476 - 3 2026-07-08
WJA290 - 3 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 WJA8976 YYZ → YHM Jul 25, 12:05 UTCJul 25, 12:20 UTC15m
2026-07-23 WJA295 YYC → YYJ Jul 23, 13:10 UTCJul 23, 14:20 UTC1h 10m
2026-07-23 WJA295 YYC → YYJ Jul 23, 13:05 UTCJul 23, 22:50 UTC9h 45m
2026-07-21 WJA282 YYJ → YYC Jul 21, 03:30 UTCJul 21, 04:30 UTC1h 0m
2026-07-21 WJA271 YYC → YYJ Jul 21, 01:20 UTCJul 21, 02:30 UTC1h 10m
2026-07-20 WJA1469 PSP → YYC Jul 20, 20:55 UTCJul 20, 23:35 UTC2h 40m
2026-07-20 WJA1460 YYC → LAS Jul 20, 16:45 UTCJul 20, 19:20 UTC2h 35m
2026-07-19 WJA1023 TPA → YYZ Jul 19, 20:35 UTCJul 19, 23:00 UTC2h 25m
2026-07-19 WJA1020 YYC → LAX Jul 19, 16:15 UTCJul 19, 19:10 UTC2h 55m
2026-07-19 WJA1093 LAS → YYC Jul 19, 01:25 UTCJul 19, 03:35 UTC2h 10m
2026-07-18 WJA1090 - Jul 18, 21:40 UTCJul 19, 00:05 UTC2h 25m
2026-07-18 WJA188 - Jul 18, 19:10 UTCJul 18, 19:50 UTC40m
2026-07-18 WJA185 - Jul 18, 17:20 UTCJul 18, 18:10 UTC50m
2026-07-18 WJA184 - Jul 18, 14:55 UTCJul 18, 15:35 UTC40m
2026-07-18 WJA525 - Jul 18, 12:55 UTCJul 18, 13:45 UTC50m
2026-07-17 WJA1125 - Jul 17, 19:15 UTCJul 17, 21:05 UTC1h 50m
2026-07-17 WJA1125 SLC → YEG Jul 17, 19:14 UTCJul 18, 17:15 UTC22h 2m
2026-07-17 WJA1124 - Jul 17, 15:55 UTCJul 17, 17:55 UTC2h 0m
2026-07-17 WJA314 - Jul 17, 01:25 UTCJul 17, 02:25 UTC1h 0m
2026-07-16 WJA123 YYC → YVR Jul 16, 22:30 UTCJul 16, 23:44 UTC1h 15m
2026-07-16 WJA1571 DEN → YYC Jul 16, 18:29 UTCJul 16, 20:29 UTC2h 0m
2026-07-16 WJA1570 YYC → DEN Jul 16, 14:55 UTCJul 16, 17:00 UTC2h 5m
2026-07-16 WJA141 - Jul 16, 12:05 UTCJul 16, 12:40 UTC35m
2026-07-15 WJA691 - Jul 15, 22:20 UTCJul 16, 02:45 UTC4h 25m
2026-07-15 WJA612 - Jul 15, 17:35 UTCJul 15, 20:50 UTC3h 15m
2026-07-15 WJA669 - Jul 15, 10:45 UTCJul 15, 16:25 UTC5h 40m
2026-07-15 WJA580 - Jul 15, 05:25 UTCJul 15, 09:20 UTC3h 55m
2026-07-14 WJA691 - Jul 14, 22:20 UTCJul 15, 02:35 UTC4h 14m
2026-07-14 WJA612 - Jul 14, 17:50 UTCJul 14, 21:10 UTC3h 20m
2026-07-14 WJA669 - Jul 14, 10:40 UTCJul 14, 16:00 UTC5h 20m
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, 16:05 UTC22h 28m
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

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?
Yes. Mode-S C03C05 is currently airborne.
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, WJA612, WJA123, WJA669.