Apparatus

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sensors Mode-S transponder

C04453

ICAO 24-bit transponder address · allocated to Canada

Currently assigned to C-FZWS · BOEING 737 MAX 8 · operated by Westjet

Hex
C04453
Octal
60042123
Decimal
12,600,403
Country
CA
Tail
C-FZWS
Type
B38M
No current signal · last broadcast Jul 26, 22:35 UTC
Flights observed
291
Distinct callsigns
20
Country
CA
Last broadcast
Jul 26, 22:35 UTC

Last known position

Most recent position reported by Mode-S C04453.

Country allocation

The ICAO 24-bit address C04453 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
WJA792 - 8 2026-07-10
WJA793 - 7 2026-07-09
WJA71 - 5 2026-07-07
WJA43 WestJet 5 2026-07-18
WJA42 WestJet 5 2026-07-18
WJA300 - 5 2026-07-10
WJA1890 WestJet 5 2026-04-18
WJA817 WestJet 4 2026-07-04
WJA816 - 4 2026-07-04
WJA70 - 4 2026-07-07
WJA63 - 4 2026-07-11
WJA576 - 4 2026-07-17
WJA380 WestJet 4 2026-06-07
WJA303 - 4 2026-07-10
WJA2379 WestJet 4 2026-04-16
WJA2267 WestJet 4 2026-04-14
WJA2266 - 4 2026-04-14
WJA1891 WestJet 4 2026-04-18
WJA892 - 3 2026-06-28
WJA811 WestJet 3 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 WJA272 YYZ → YHZ Jul 26, 21:25 UTCJul 26, 22:25 UTC1h 0m
2026-07-26 WJA265 YYT → YYC Jul 26, 18:30 UTCJul 26, 19:45 UTC1h 15m
2026-07-26 WJA762 YYC → YYT Jul 26, 04:15 UTCJul 26, 16:35 UTC12h 21m
2026-07-25 WJA1485 PSP → YEG Jul 25, 22:45 UTCJul 26, 01:15 UTC2h 30m
2026-07-25 WJA1484 YEG → PSP Jul 25, 18:05 UTCJul 25, 21:05 UTC3h 0m
2026-07-25 WJA1541 IAH → YYC Jul 25, 11:55 UTCJul 25, 15:40 UTC3h 45m
2026-07-24 WJA626 YYZ → YYT Jul 24, 12:10 UTCJul 24, 14:45 UTC2h 35m
2026-07-24 WJA626 YYZ → YYT Jul 24, 12:09 UTCJul 25, 03:35 UTC15h 26m
2026-07-23 WJA651 YYZ → YYC Jul 23, 22:50 UTCJul 24, 02:50 UTC4h 0m
2026-07-23 WJA781 YYT → YYZ Jul 23, 09:20 UTCJul 23, 20:40 UTC11h 20m
2026-07-23 WJA52 - Jul 23, 00:25 UTCJul 23, 07:25 UTC7h 0m
2026-07-22 WJA754 YQR → YYZ Jul 22, 12:11 UTCJul 23, 10:05 UTC21h 54m
2026-07-22 WJA754 YQR → YYZ Jul 22, 03:25 UTCJul 22, 14:35 UTC11h 10m
2026-07-21 WJA811 YHZ → YYZ Jul 21, 23:45 UTCJul 22, 01:45 UTC2h 0m
2026-07-21 WJA808 - Jul 21, 21:00 UTCJul 21, 22:35 UTC1h 35m
2026-07-21 WJA93 - Jul 21, 11:45 UTCJul 21, 19:15 UTC7h 30m
2026-07-20 WJA2560 - Jul 20, 15:40 UTCJul 20, 18:10 UTC2h 30m
2026-07-20 WJA2560 YYZ → KIN Jul 20, 15:39 UTCJul 21, 12:45 UTC21h 6m
2026-07-20 WJA76 YYZ → PDL Jul 20, 02:45 UTCJul 20, 05:05 UTC2h 20m
2026-07-19 WJA712 - Jul 19, 18:50 UTCJul 19, 22:40 UTC3h 50m
2026-07-19 WJA811 YHZ → YYZ Jul 19, 00:21 UTCJul 19, 20:45 UTC20h 25m
2026-07-18 WJA803 YHZ → YYZ Jul 18, 16:44 UTCJul 19, 14:45 UTC22h 2m
2026-07-18 WJA43 DUB → YHZ Jul 18, 08:50 UTCJul 18, 09:45 UTC55m
2026-07-18 WJA43 DUB → YHZ Jul 18, 08:50 UTCJul 19, 02:40 UTC17h 51m
2026-07-18 WJA42 YHZ → CDG Jul 18, 02:00 UTCJul 18, 07:10 UTC5h 11m
2026-07-17 WJA576 - Jul 17, 19:35 UTCJul 17, 23:35 UTC4h 0m
2026-07-17 WJA144 - Jul 17, 15:44 UTCJul 17, 16:15 UTC30m
2026-07-17 WJA102 YVR → YYC Jul 17, 13:10 UTCJul 17, 14:15 UTC1h 5m
2026-07-17 WJA321 - Jul 17, 04:10 UTCJul 17, 05:30 UTC1h 20m
2026-07-17 WJA158 YYC → YEG Jul 17, 01:15 UTCJul 17, 01:45 UTC30m
2026-07-16 WJA1163 PHX → YYC Jul 16, 20:29 UTCJul 16, 23:05 UTC2h 35m
2026-07-16 WJA1160 YYC → PHX Jul 16, 16:35 UTCJul 16, 19:20 UTC2h 45m
2026-07-15 WJA2241 PVR → YYC Jul 15, 20:29 UTCJul 16, 18:44 UTC22h 16m
2026-07-15 WJA2240 - Jul 15, 14:45 UTCJul 15, 22:45 UTC8h 0m
2026-07-14 WJA651 YYZ → YYC Jul 14, 22:45 UTCJul 15, 02:35 UTC3h 50m
2026-07-14 WJA781 - Jul 14, 09:15 UTCJul 14, 20:35 UTC11h 20m
2026-07-13 WJA780 - Jul 13, 22:40 UTCJul 14, 00:40 UTC2h 0m
2026-07-13 WJA780 YYZ → YYT Jul 13, 22:37 UTCJul 14, 20:45 UTC22h 9m
2026-07-13 WJA636 YYC → YYZ Jul 13, 17:30 UTCJul 13, 20:40 UTC3h 10m
2026-07-13 WJA159 - Jul 13, 13:40 UTCJul 13, 14:15 UTC35m
2026-07-13 WJA158 - Jul 13, 01:05 UTCJul 13, 01:25 UTC20m
2026-07-12 WJA1163 PHX → YYC Jul 12, 20:20 UTCJul 12, 22:50 UTC2h 30m
2026-07-12 WJA1160 YYC → PHX Jul 12, 16:10 UTCJul 12, 18:55 UTC2h 45m
2026-07-11 WJA63 - Jul 11, 10:05 UTCJul 11, 16:50 UTC6h 45m
2026-07-11 WJA63 CDG → YHZ Jul 11, 10:04 UTCJul 12, 02:45 UTC16h 42m
2026-07-11 WJA62 - Jul 11, 02:25 UTCJul 11, 08:10 UTC5h 45m
2026-07-10 WJA792 - Jul 10, 19:15 UTCJul 11, 00:20 UTC5h 6m
2026-07-10 WJA303 - Jul 10, 15:45 UTCJul 10, 17:10 UTC1h 25m
2026-07-10 WJA300 YVR → YEG Jul 10, 13:05 UTCJul 10, 14:10 UTC1h 5m
2026-07-09 WJA793 - Jul 9, 20:55 UTCJul 10, 03:15 UTC6h 20m

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

Mode-S C04453 frequently asked

What is Mode-S code C04453?
C04453 is an ICAO 24-bit transponder address. Allocated to Canada. Assigned to C-FZWS.
Where is Mode-S C04453 registered?
Mode-S code C04453 is allocated to Canada (CA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is C04453 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex C04453, octal 60042123, decimal 12,600,403.
What flights does C04453 operate?
Mode-S C04453 has broadcast 20 distinct callsigns, including WJA792, WJA793, WJA71, WJA43, WJA42.