Apparatus

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sensors Mode-S transponder

C03BF2

ICAO 24-bit transponder address · allocated to Canada

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

Hex
C03BF2
Octal
60035762
Decimal
12,598,258
Country
CA
Tail
C-FWSF
Type
B737
Broadcasting now · callsign WJA235 · 40,000 ft
Flights observed
181
Distinct callsigns
20
Country
CA
Last broadcast
31m ago

Current position

C03BF2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address C03BF2 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
WJA647 WestJet 3 2026-04-17
WJA344 WestJet 3 2026-05-27
WJA290 WestJet 3 2026-04-19
WJA287 WestJet 3 2026-04-19
WJA1992 WestJet 3 2026-04-15
WJA184 WestJet 3 2026-04-26
WJA1831 - 3 2026-04-15
WJA139 WestJet 3 2026-05-18
WJA112 WestJet 3 2026-05-15
WJA1020 WestJet 3 2026-05-12
WJA872 WestJet 2 2026-05-02
WJA817 WestJet 2 2026-05-05
WJA773 WestJet 2 2026-05-04
WJA772 WestJet 2 2026-05-04
WJA710 WestJet 2 2026-05-10
WJA641 WestJet 2 2026-05-18
WJA632 WestJet 2 2026-04-17
WJA615 WestJet 2 2026-04-29
WJA601 WestJet 2 2026-05-03
WJA600 WestJet 2 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 WJA235 YYC → YHZ May 30, 02:10 UTCMay 30, 02:30 UTC20m
2026-05-29 WJA232 YYC → YHZ May 29, 23:30 UTCMay 30, 01:10 UTC1h 40m
2026-05-29 WJA272 YYZ → YHZ May 29, 20:15 UTCMay 29, 21:30 UTC1h 15m
2026-05-29 WJA265 YYT → YYC May 29, 18:05 UTCMay 29, 19:10 UTC1h 5m
2026-05-28 WJA1680 YYC → JFK May 28, 16:09 UTCMay 29, 02:30 UTC10h 21m
2026-05-28 WJA271 YWG → YYC May 28, 01:19 UTCMay 29, 00:30 UTC23h 11m
2026-05-27 WJA349 YXE → YYC May 27, 22:45 UTCMay 28, 22:30 UTC23h 45m
2026-05-27 WJA344 YMM → YYC May 27, 20:50 UTCMay 27, 21:45 UTC55m
2026-05-27 WJA344 YMM → YYC May 27, 20:50 UTCMay 28, 20:30 UTC23h 40m
2026-05-27 WJA227 YWG → YYC May 27, 17:35 UTCMay 27, 19:20 UTC1h 45m
2026-05-27 WJA222 YZF → YYC May 27, 14:45 UTCMay 27, 16:20 UTC1h 35m
2026-05-27 WJA4040 YYC → YFI May 27, 00:19 UTCMay 27, 03:34 UTC3h 15m
2026-05-26 WJA399 YYC → YLW May 26, 20:05 UTCMay 26, 21:04 UTC1h 0m
2026-05-26 WJA394 YYC → YQR May 26, 17:25 UTCMay 26, 18:19 UTC55m
2026-05-26 WJA4021 YFI → YYC May 26, 12:30 UTCMay 26, 15:29 UTC3h 0m
2026-05-26 WJA1027 LAX → YYC May 26, 01:10 UTCMay 26, 03:45 UTC2h 35m
2026-05-25 WJA1024 YYC → LAX May 25, 20:50 UTCMay 25, 23:40 UTC2h 50m
2026-05-25 WJA227 YYC → YYJ May 25, 17:10 UTCMay 25, 18:55 UTC1h 45m
2026-05-24 WJA1625 BOS → YYC May 24, 23:50 UTCMay 25, 22:10 UTC22h 20m
2026-05-24 WJA1624 YYC → LAS May 24, 17:05 UTCMay 24, 21:45 UTC4h 40m
2026-05-24 WJA472 YXX → YYC May 24, 13:25 UTCMay 24, 14:25 UTC1h 0m
2026-05-24 WJA477 YYC → YXX May 24, 03:55 UTCMay 24, 05:05 UTC1h 10m
2026-05-23 WJA1485 PSP → YEG May 23, 22:40 UTCMay 24, 01:30 UTC2h 50m
2026-05-23 WJA1484 YEG → PSP May 23, 17:55 UTCMay 23, 20:45 UTC2h 50m
2026-05-23 WJA159 YEG → YYC May 23, 14:00 UTCMay 23, 14:30 UTC30m
2026-05-22 WJA181 YYC → YLW May 22, 14:16 UTCMay 22, 23:00 UTC8h 45m
2026-05-22 WJA180 YLW → YYC May 22, 12:05 UTCMay 22, 23:00 UTC10h 56m
2026-05-22 WJA195 YYC → YYJ May 22, 05:51 UTCMay 22, 23:00 UTC17h 10m
2026-05-21 WJA1624 YYC → LAS May 21, 17:16 UTCMay 22, 16:30 UTC23h 15m
2026-05-21 WJA273 YHZ → YYZ May 21, 05:06 UTCMay 22, 04:30 UTC23h 25m
2026-05-20 WJA783 YQT → YYC May 20, 23:51 UTCMay 21, 22:05 UTC22h 15m
2026-05-20 WJA782 YYC → YQT May 20, 20:26 UTCMay 21, 18:30 UTC22h 5m
2026-05-20 WJA4041 YFI → YYC May 20, 02:27 UTCMay 21, 00:30 UTC22h 4m
2026-05-19 WJA272 YYZ → YHZ May 19, 20:13 UTCMay 20, 18:20 UTC22h 8m
2026-05-19 WJA477 YYC → YXX May 19, 04:20 UTCMay 20, 00:55 UTC20h 35m
2026-05-19 WJA192 YYJ → YEG May 19, 01:40 UTCMay 19, 02:25 UTC45m
2026-05-19 WJA192 YYJ → YEG May 19, 01:39 UTCMay 20, 00:30 UTC22h 51m
2026-05-18 WJA189 YEG → YLW May 18, 23:05 UTCMay 18, 23:50 UTC45m
2026-05-18 WJA641 YYZ → YYC May 18, 17:40 UTCMay 18, 21:25 UTC3h 44m
2026-05-18 WJA626 YYZ → YYT May 18, 12:15 UTCMay 18, 15:40 UTC3h 25m
2026-05-18 WJA130 YVR → YYC May 18, 03:40 UTCMay 18, 04:40 UTC1h 0m
2026-05-18 WJA139 YYC → YVR May 18, 01:05 UTCMay 18, 02:10 UTC1h 5m
2026-05-17 WJA349 YXE → YYC May 17, 22:55 UTCMay 17, 23:45 UTC50m
2026-05-17 WJA344 YMM → YYC May 17, 20:50 UTCMay 17, 21:40 UTC50m
2026-05-17 WJA266 YEG → YYC May 17, 18:01 UTCMay 17, 19:05 UTC1h 5m
2026-05-17 WJA263 YXE → YYC May 17, 15:20 UTCMay 17, 16:30 UTC1h 10m
2026-05-15 WJA121 YYC → YVR May 15, 21:35 UTCMay 15, 22:40 UTC1h 5m
2026-05-15 WJA121 YYC → YVR May 15, 21:30 UTCMay 16, 02:10 UTC4h 40m
2026-05-15 WJA112 YVR → YYC May 15, 19:10 UTCMay 15, 20:10 UTC1h 0m
2026-05-14 WJA4031 YFI → YYC May 14, 23:35 UTCMay 15, 22:30 UTC22h 55m

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

Mode-S C03BF2 frequently asked

What is Mode-S code C03BF2?
C03BF2 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FWSF.
Where is Mode-S C03BF2 registered?
Mode-S code C03BF2 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C03BF2 broadcasting right now?
Yes. Mode-S C03BF2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C03BF2, octal 60035762, decimal 12,598,258.
What flights does C03BF2 operate?
Mode-S C03BF2 has broadcast 20 distinct callsigns, including WJA647, WJA344, WJA290, WJA287, WJA1992.