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
- Flights observed
- 96
- Distinct callsigns
- 20
- Country
- CA
- Last broadcast
- 22d ago
Last known position
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 | WestJet | 6 | 2026-04-18 |
| WJA685 | WestJet | 4 | 2026-04-21 |
| WJA684 | WestJet | 4 | 2026-04-21 |
| WJA114 | WestJet | 4 | 2026-05-01 |
| WJA671 | WestJet | 3 | 2026-04-15 |
| WJA670 | WestJet | 3 | 2026-04-15 |
| WJA647 | WestJet | 3 | 2026-04-14 |
| WJA611 | WestJet | 3 | 2026-04-17 |
| WJA1161 | WestJet | 3 | 2026-04-25 |
| WJA113 | WestJet | 3 | 2026-04-18 |
| WJA106 | - | 3 | 2026-04-13 |
| WJA8980 | WestJet | 2 | 2026-05-07 |
| WJA632 | WestJet | 2 | 2026-04-14 |
| WJA618 | WestJet | 2 | 2026-05-01 |
| WJA4035 | WestJet | 2 | 2026-05-06 |
| WJA399 | WestJet | 2 | 2026-05-05 |
| WJA277 | WestJet | 2 | 2026-04-25 |
| WJA190 | WestJet | 2 | 2026-05-06 |
| WJA1827 | WestJet | 2 | 2026-04-24 |
| WJA1581 | WestJet | 2 | 2026-04-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-07 | WJA8980 | YEG → YYC | May 7, 13:10 UTC | May 7, 15:30 UTC | 2h 20m |
| 2026-05-07 | WJA8980 | YEG → YYC | May 7, 13:10 UTC | May 7, 15:30 UTC | 2h 21m |
| 2026-05-07 | WJA430 | YEG → YYZ | May 7, 05:25 UTC | May 7, 08:35 UTC | 3h 10m |
| 2026-05-07 | WJA158 | YYC → YEG | May 7, 01:05 UTC | May 7, 01:35 UTC | 30m |
| 2026-05-06 | WJA190 | YLW → YEG | May 6, 22:20 UTC | May 6, 23:05 UTC | 45m |
| 2026-05-06 | WJA4035 | YFI → YYC | May 6, 02:12 UTC | May 7, 01:35 UTC | 23h 23m |
| 2026-05-05 | WJA4034 | YYC → YFI | May 5, 23:36 UTC | May 6, 21:10 UTC | 21h 34m |
| 2026-05-05 | WJA399 | YYC → YLW | May 5, 20:20 UTC | May 5, 21:20 UTC | 1h 0m |
| 2026-05-05 | WJA399 | YYC → YLW | May 5, 20:14 UTC | May 6, 17:45 UTC | 21h 31m |
| 2026-05-05 | WJA394 | YYC → YQR | May 5, 17:20 UTC | May 5, 18:15 UTC | 55m |
| 2026-05-05 | WJA145 | YYC → YMM | May 5, 15:20 UTC | May 5, 15:50 UTC | 30m |
| 2026-05-05 | WJA483 | YWG → YVR | May 5, 12:20 UTC | May 5, 14:00 UTC | 1h 40m |
| 2026-05-04 | WJA230 | YYC → YHZ | May 4, 20:40 UTC | May 4, 22:15 UTC | 1h 35m |
| 2026-05-04 | WJA397 | YQR → YYC | May 4, 17:50 UTC | May 4, 18:50 UTC | 1h 1m |
| 2026-05-04 | WJA392 | YEG → YHZ | May 4, 15:40 UTC | May 4, 16:30 UTC | 50m |
| 2026-05-03 | WJA261 | YWG → YYC | May 3, 14:29 UTC | May 4, 01:44 UTC | 11h 16m |
| 2026-05-03 | WJA1431 | BNA → YYC | May 3, 00:15 UTC | May 3, 04:20 UTC | 4h 4m |
| 2026-05-03 | WJA1431 | BNA → YYC | May 3, 00:14 UTC | May 3, 23:45 UTC | 23h 31m |
| 2026-05-02 | WJA1430 | YEG → LAX | May 2, 19:25 UTC | May 2, 22:50 UTC | 3h 25m |
| 2026-05-02 | WJA1087 | LAS → YYC | May 2, 15:35 UTC | May 2, 18:05 UTC | 2h 30m |
| 2026-05-01 | WJA114 | YVR → YYC | May 1, 20:27 UTC | May 2, 19:45 UTC | 23h 19m |
| 2026-05-01 | WJA618 | YEG → YYG | May 1, 05:53 UTC | May 2, 04:20 UTC | 22h 28m |
| 2026-05-01 | WJA618 | YEG → YYG | May 1, 05:55 UTC | May 1, 09:25 UTC | 3h 30m |
| 2026-05-01 | WJA4036 | YYC → YFI | May 1, 00:40 UTC | May 1, 03:40 UTC | 3h 0m |
| 2026-04-30 | WJA190 | YLW → YEG | Apr 30, 22:20 UTC | Apr 30, 23:05 UTC | 45m |
| 2026-04-30 | WJA187 | YYC → YLW | Apr 30, 20:25 UTC | Apr 30, 21:05 UTC | 40m |
| 2026-04-30 | WJA347 | YXE → YYC | Apr 30, 18:00 UTC | Apr 30, 18:50 UTC | 50m |
| 2026-04-30 | WJA342 | YYC → YXE | Apr 30, 16:05 UTC | Apr 30, 17:00 UTC | 55m |
| 2026-04-28 | WJA1163 | PHX → YYC | Apr 28, 20:25 UTC | Apr 28, 23:00 UTC | 2h 35m |
| 2026-04-28 | WJA1160 | YYC → PHX | Apr 28, 16:25 UTC | Apr 28, 19:10 UTC | 2h 45m |
| 2026-04-28 | WJA659 | YYZ → YYC | Apr 28, 02:45 UTC | Apr 28, 06:15 UTC | 3h 30m |
| 2026-04-27 | WJA1037 | TPA → YYT | Apr 27, 21:05 UTC | Apr 27, 23:40 UTC | 2h 35m |
| 2026-04-27 | WJA1410 | YYC → MCO | Apr 27, 15:10 UTC | Apr 27, 19:50 UTC | 4h 40m |
| 2026-04-27 | WJA393 | YQR → YYC | Apr 27, 12:15 UTC | Apr 27, 13:15 UTC | 1h 0m |
| 2026-04-26 | WJA861 | YHZ → YQR | Apr 26, 23:35 UTC | Apr 27, 03:35 UTC | 4h 0m |
| 2026-04-26 | WJA860 | YQR → YHZ | Apr 26, 18:40 UTC | Apr 26, 22:25 UTC | 3h 45m |
| 2026-04-26 | WJA375 | YOW → YYZ | Apr 26, 03:16 UTC | Apr 27, 00:35 UTC | 21h 20m |
| 2026-04-25 | WJA277 | YHZ → YYZ | Apr 25, 19:40 UTC | Apr 25, 19:45 UTC | 5m |
| 2026-04-25 | WJA277 | YHZ → YYZ | Apr 25, 19:40 UTC | Apr 26, 06:35 UTC | 10h 55m |
| 2026-04-25 | WJA1161 | PHX → YYC | Apr 25, 15:18 UTC | Apr 26, 06:35 UTC | 15h 17m |
| 2026-04-25 | WJA1161 | PHX → YYC | Apr 25, 15:20 UTC | Apr 25, 17:55 UTC | 2h 35m |
| 2026-04-24 | WJA186 | YYJ → YYC | Apr 24, 18:07 UTC | Apr 25, 17:45 UTC | 23h 38m |
| 2026-04-24 | WJA1827 | PHX → YXE | Apr 24, 02:40 UTC | Apr 24, 05:30 UTC | 2h 50m |
| 2026-04-24 | WJA1827 | PHX → YXE | Apr 24, 02:36 UTC | Apr 25, 00:45 UTC | 22h 9m |
| 2026-04-23 | WJA1924 | YXE → PHX | Apr 23, 22:00 UTC | Apr 24, 00:55 UTC | 2h 55m |
| 2026-04-23 | WJA1845 | MSP → YXE | Apr 23, 17:30 UTC | Apr 23, 19:15 UTC | 1h 44m |
| 2026-04-23 | WJA1900 | YXE → MSP | Apr 23, 13:10 UTC | Apr 23, 15:05 UTC | 1h 55m |
| 2026-04-22 | WJA1831 | ATL → YYC | Apr 22, 12:58 UTC | Apr 23, 06:40 UTC | 17h 43m |
| 2026-04-22 | WJA4035 | YFI → YYC | Apr 22, 02:15 UTC | Apr 23, 01:45 UTC | 23h 31m |
| 2026-04-21 | WJA684 | YZF → YYC | Apr 21, 20:18 UTC | Apr 22, 19:05 UTC | 22h 47m |
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 .