Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

C03BF5

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C03BF5
Octal
60035765
Decimal
12,598,261
Country
CA
Tail
C-FWSI
Type
B737
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
299
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S C03BF5.

Country allocation

The ICAO 24-bit address C03BF5 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
WJA615 WestJet 7 2026-06-25
WJA184 WestJet 7 2026-07-23
WJA1531 WestJet 7 2026-07-25
WJA690 WestJet 6 2026-06-23
WJA525 WestJet 6 2026-07-23
WJA276 WestJet 6 2026-06-19
WJA188 WestJet 6 2026-07-23
WJA181 WestJet 6 2026-06-26
WJA691 - 5 2026-07-03
WJA601 - 5 2026-07-15
WJA600 - 5 2026-07-15
WJA594 WestJet 5 2026-07-26
WJA350 WestJet 5 2026-07-24
WJA269 WestJet 5 2026-06-25
WJA185 - 5 2026-07-23
WJA171 WestJet 5 2026-07-17
WJA1530 WestJet 5 2026-07-25
WJA669 WestJet 4 2026-06-15
WJA580 - 4 2026-07-03
WJA577 - 4 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WJA594 YYC → YHM Jul 26, 17:25 UTCJul 26, 20:30 UTC3h 5m
2026-07-26 WJA264 YYC → YYT Jul 26, 14:50 UTCJul 26, 15:50 UTC1h 0m
2026-07-25 WJA1531 MSP → YEG Jul 25, 20:05 UTCJul 25, 22:45 UTC2h 40m
2026-07-25 WJA1531 MSP → YEG Jul 25, 20:04 UTCJul 26, 17:15 UTC21h 12m
2026-07-25 WJA1530 YEG → MSP Jul 25, 15:45 UTCJul 25, 17:50 UTC2h 5m
2026-07-24 WJA144 YYC → YEG Jul 24, 15:38 UTCJul 24, 23:50 UTC8h 12m
2026-07-24 WJA144 YYC → YEG Jul 24, 15:40 UTCJul 24, 16:10 UTC30m
2026-07-24 WJA345 YEG → YQQ Jul 24, 13:10 UTCJul 24, 13:55 UTC45m
2026-07-24 WJA350 YYC → YQR Jul 24, 06:00 UTCJul 24, 06:50 UTC50m
2026-07-24 WJA1093 LAS → YYC Jul 24, 01:30 UTCJul 24, 03:55 UTC2h 25m
2026-07-23 WJA1090 YYC → LAS Jul 23, 21:40 UTCJul 24, 00:10 UTC2h 30m
2026-07-23 WJA188 YLW → YYC Jul 23, 19:15 UTCJul 23, 19:50 UTC35m
2026-07-23 WJA185 - Jul 23, 17:15 UTCJul 23, 18:05 UTC50m
2026-07-23 WJA184 YLW → YYC Jul 23, 14:55 UTCJul 23, 15:40 UTC45m
2026-07-23 WJA525 YYZ → YWG Jul 23, 12:45 UTCJul 23, 13:40 UTC55m
2026-07-22 WJA4001 - Jul 22, 13:00 UTCJul 22, 15:40 UTC2h 40m
2026-07-21 WJA1531 - Jul 21, 20:05 UTCJul 21, 22:55 UTC2h 50m
2026-07-21 WJA1530 YEG → MSP Jul 21, 15:50 UTCJul 21, 17:50 UTC2h 0m
2026-07-20 WJA1531 - Jul 20, 20:05 UTCJul 20, 22:45 UTC2h 40m
2026-07-20 WJA1531 MSP → YEG Jul 20, 20:03 UTCJul 21, 17:55 UTC21h 52m
2026-07-20 WJA1530 YEG → MSP Jul 20, 15:45 UTCJul 20, 17:50 UTC2h 5m
2026-07-20 WJA150 YYC → YEG Jul 20, 03:00 UTCJul 20, 03:25 UTC25m
2026-07-19 WJA231 YWG → YYC Jul 19, 22:00 UTCJul 19, 23:55 UTC1h 55m
2026-07-19 WJA228 YYC → YHZ Jul 19, 18:40 UTCJul 19, 20:15 UTC1h 35m
2026-07-19 WJA225 YOW → YEG Jul 19, 15:20 UTCJul 19, 17:10 UTC1h 50m
2026-07-19 WJA482 YVR → YWG Jul 19, 12:35 UTCJul 19, 14:10 UTC1h 35m
2026-07-18 WJA2113 PVR → YEG Jul 18, 18:40 UTCJul 19, 05:20 UTC10h 40m
2026-07-17 WJA171 YEG → YVR Jul 17, 19:15 UTCJul 17, 20:29 UTC1h 15m
2026-07-17 WJA171 YEG → YVR Jul 17, 19:10 UTCJul 18, 00:55 UTC5h 45m
2026-07-17 WJA170 - Jul 17, 16:34 UTCJul 17, 17:40 UTC1h 5m
2026-07-16 WJA307 - Jul 16, 18:29 UTCJul 16, 19:50 UTC1h 20m
2026-07-16 WJA307 YEG → YVR Jul 16, 18:25 UTCJul 17, 17:15 UTC22h 50m
2026-07-16 WJA302 - Jul 16, 15:19 UTCJul 16, 16:30 UTC1h 10m
2026-07-15 WJA600 - Jul 15, 16:35 UTCJul 15, 17:15 UTC40m
2026-07-15 WJA600 YVR → YXE Jul 15, 16:34 UTCJul 16, 07:25 UTC14h 51m
2026-07-15 WJA601 - Jul 15, 13:15 UTCJul 15, 15:05 UTC1h 50m
2026-07-15 WJA601 YXE → YVR Jul 15, 13:11 UTCJul 16, 07:25 UTC18h 14m
2026-07-15 WJA350 YYC → YXE Jul 15, 05:55 UTCJul 15, 06:40 UTC45m
2026-07-15 WJA1093 LAS → YYC Jul 15, 01:15 UTCJul 15, 03:30 UTC2h 15m
2026-07-14 WJA1090 YYC → LAS Jul 14, 21:35 UTCJul 15, 00:00 UTC2h 24m
2026-07-14 WJA188 YLW → YYC Jul 14, 19:15 UTCJul 14, 20:00 UTC45m
2026-07-14 WJA185 - Jul 14, 17:20 UTCJul 14, 18:05 UTC45m
2026-07-14 WJA184 - Jul 14, 15:00 UTCJul 14, 15:40 UTC40m
2026-07-14 WJA525 - Jul 14, 12:40 UTCJul 14, 13:40 UTC1h 0m
2026-07-14 WJA152 YYC → YEG Jul 14, 04:00 UTCJul 14, 04:30 UTC30m
2026-07-14 WJA351 - Jul 14, 00:55 UTCJul 14, 01:55 UTC1h 0m
2026-07-13 WJA352 YYC → YXE Jul 13, 22:55 UTCJul 13, 23:40 UTC45m
2026-07-13 WJA552 YCD → YYC Jul 13, 19:45 UTCJul 13, 20:50 UTC1h 5m
2026-07-13 WJA553 YYC → YCD Jul 13, 17:20 UTCJul 13, 18:45 UTC1h 25m
2026-07-13 WJA747 - Jul 13, 10:35 UTCJul 13, 14:35 UTC4h 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-FWSI page for operator, model, and routing details .

Mode-S C03BF5 frequently asked

What is Mode-S code C03BF5?
C03BF5 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FWSI.
Where is Mode-S C03BF5 registered?
Mode-S code C03BF5 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C03BF5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C03BF5, octal 60035765, decimal 12,598,261.
What flights does C03BF5 operate?
Mode-S C03BF5 has broadcast 20 distinct callsigns, including WJA615, WJA184, WJA1531, WJA690, WJA525.