Apparatus

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sensors Mode-S transponder

C03BF7

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C03BF7
Octal
60035767
Decimal
12,598,263
Country
CA
Tail
C-FWSK
Type
B737
No current signal · last broadcast Jul 26, 20:00 UTC
Flights observed
227
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 20:00 UTC

Last known position

Most recent position reported by Mode-S C03BF7.

Country allocation

The ICAO 24-bit address C03BF7 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
WJA616 - 7 2026-07-23
WJA685 WestJet 4 2026-04-21
WJA684 WestJet 4 2026-04-21
WJA669 WestJet 4 2026-07-06
WJA226 - 4 2026-07-20
WJA1531 - 4 2026-07-08
WJA1504 WestJet 4 2026-07-24
WJA114 WestJet 4 2026-05-01
WJA790 - 3 2026-07-07
WJA710 WestJet 3 2026-06-20
WJA671 WestJet 3 2026-04-15
WJA670 WestJet 3 2026-04-15
WJA647 WestJet 3 2026-04-14
WJA611 WestJet 3 2026-04-17
WJA195 WestJet 3 2026-07-17
WJA190 - 3 2026-06-30
WJA1530 - 3 2026-07-08
WJA1474 - 3 2026-07-03
WJA1161 WestJet 3 2026-04-25
WJA113 WestJet 3 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WJA1620 YYC → DTW Jul 26, 17:10 UTCJul 26, 20:00 UTC2h 50m
2026-07-25 WJA617 YOW → YYC Jul 25, 20:14 UTCJul 26, 17:45 UTC21h 32m
2026-07-25 WJA273 YHZ → YYZ Jul 25, 05:22 UTCJul 26, 00:50 UTC19h 28m
2026-07-25 WJA273 YHZ → YYZ Jul 25, 05:25 UTCJul 25, 06:40 UTC1h 15m
2026-07-24 WJA825 YAM → YYC Jul 24, 18:15 UTCJul 25, 01:40 UTC7h 25m
2026-07-24 WJA1504 YEG → PSP Jul 24, 04:15 UTCJul 25, 01:50 UTC21h 35m
2026-07-24 WJA1504 YEG → PSP Jul 24, 04:15 UTCJul 24, 07:10 UTC2h 55m
2026-07-23 WJA617 YOW → YYC Jul 23, 20:35 UTCJul 24, 00:55 UTC4h 20m
2026-07-23 WJA616 YYC → YOW Jul 23, 16:05 UTCJul 23, 19:25 UTC3h 20m
2026-07-22 WJA1484 YEG → PSP Jul 22, 17:53 UTCJul 23, 17:45 UTC23h 52m
2026-07-22 WJA1484 YEG → PSP Jul 22, 17:55 UTCJul 22, 20:50 UTC2h 55m
2026-07-21 WJA641 YYZ → YYC Jul 21, 17:40 UTCJul 21, 21:50 UTC4h 10m
2026-07-21 WJA626 YYC → YYZ Jul 21, 12:10 UTCJul 21, 15:15 UTC3h 5m
2026-07-20 WJA226 YYC → YWG Jul 20, 17:17 UTCJul 21, 15:30 UTC22h 13m
2026-07-20 WJA226 YYC → YWG Jul 20, 17:20 UTCJul 20, 18:50 UTC1h 30m
2026-07-20 WJA1501 LAS → YYC Jul 20, 13:40 UTCJul 20, 15:45 UTC2h 5m
2026-07-20 WJA1504 YEG → PSP Jul 20, 04:40 UTCJul 20, 07:30 UTC2h 50m
2026-07-19 WJA118 YVR → YYC Jul 19, 21:40 UTCJul 19, 22:45 UTC1h 5m
2026-07-19 WJA307 - Jul 19, 18:45 UTCJul 19, 20:05 UTC1h 20m
2026-07-19 WJA526 - Jul 19, 16:10 UTCJul 19, 17:10 UTC1h 0m
2026-07-19 WJA181 - Jul 19, 14:15 UTCJul 19, 15:00 UTC45m
2026-07-19 WJA180 - Jul 19, 12:10 UTCJul 19, 12:50 UTC40m
2026-07-19 WJA193 YYC → YXX Jul 19, 04:05 UTCJul 19, 04:55 UTC50m
2026-07-19 WJA351 YXE → YYC Jul 19, 00:55 UTCJul 19, 01:50 UTC55m
2026-07-18 WJA352 YYC → YXE Jul 18, 23:05 UTCJul 18, 23:45 UTC40m
2026-07-18 WJA552 - Jul 18, 20:00 UTCJul 18, 21:05 UTC1h 5m
2026-07-18 WJA553 YYC → YCD Jul 18, 17:45 UTCJul 18, 19:00 UTC1h 15m
2026-07-18 WJA559 YUL → YYC Jul 18, 11:25 UTCJul 18, 15:55 UTC4h 30m
2026-07-17 WJA566 YYC → YUL Jul 17, 23:30 UTCJul 18, 03:05 UTC3h 36m
2026-07-17 WJA195 YYC → YYJ Jul 17, 06:14 UTCJul 18, 03:35 UTC21h 22m
2026-07-16 WJA1091 - Jul 16, 21:40 UTCJul 16, 21:45 UTC5m
2026-07-16 WJA1088 YYC → LAS Jul 16, 17:39 UTCJul 17, 14:10 UTC20h 31m
2026-07-16 WJA1088 YYC → LAS Jul 16, 17:40 UTCJul 16, 20:09 UTC2h 30m
2026-07-16 WJA631 YYZ → YYC Jul 16, 11:10 UTCJul 16, 15:05 UTC3h 55m
2026-07-13 WJA589 - Jul 13, 22:25 UTCJul 13, 23:05 UTC40m
2026-07-13 WJA588 - Jul 13, 20:40 UTCJul 13, 21:25 UTC45m
2026-07-13 WJA444 - Jul 13, 15:45 UTCJul 13, 18:55 UTC3h 10m
2026-07-13 WJA314 - Jul 13, 01:15 UTCJul 13, 02:15 UTC1h 0m
2026-07-12 WJA123 YYC → YVR Jul 12, 22:25 UTCJul 12, 23:35 UTC1h 10m
2026-07-12 WJA1593 ATL → YYC Jul 12, 13:05 UTCJul 12, 17:30 UTC4h 25m
2026-07-12 WJA1992 YYC → ATL Jul 12, 06:30 UTCJul 12, 10:15 UTC3h 45m
2026-07-12 WJA276 - Jul 12, 02:05 UTCJul 12, 03:01 UTC55m
2026-07-11 WJA269 - Jul 11, 23:40 UTCJul 12, 01:00 UTC1h 20m
2026-07-11 WJA641 YYZ → YYC Jul 11, 17:40 UTCJul 11, 21:35 UTC3h 55m
2026-07-11 WJA650 YYC → YYZ Jul 11, 00:30 UTCJul 11, 03:45 UTC3h 15m
2026-07-10 WJA229 YWG → YYC Jul 10, 20:05 UTCJul 10, 21:50 UTC1h 45m
2026-07-10 WJA226 YYC → YWG Jul 10, 17:20 UTCJul 10, 18:50 UTC1h 30m
2026-07-10 WJA1501 - Jul 10, 13:15 UTCJul 10, 15:25 UTC2h 10m
2026-07-10 WJA1504 YYC → SFO Jul 10, 04:15 UTCJul 10, 06:45 UTC2h 30m
2026-07-09 WJA749 - Jul 9, 21:50 UTCJul 10, 01:40 UTC3h 50m

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

Mode-S C03BF7 frequently asked

What is Mode-S code C03BF7?
C03BF7 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FWSK.
Where is Mode-S C03BF7 registered?
Mode-S code C03BF7 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C03BF7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C03BF7, octal 60035767, decimal 12,598,263.
What flights does C03BF7 operate?
Mode-S C03BF7 has broadcast 20 distinct callsigns, including WJA616, WJA685, WJA684, WJA669, WJA226.