sensors Mode-S transponder
C0817C
ICAO 24-bit transponder address · allocated to Canada
Currently assigned to C-GXAX · BOEING 737 MAX 8 · operated by Westjet
- Hex
- C0817C
- Octal
- 60100574
- Decimal
- 12,616,060
- Country
- CA
- Tail
- C-GXAX
- Type
- B38M
- Flights observed
- 281
- Distinct callsigns
- 20
- Country
- CA
- Last broadcast
- Jul 26, 21:30 UTC
Current position
Country allocation
The ICAO 24-bit address C0817C 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 |
|---|---|---|---|
| WJA781 | WestJet | 6 | 2026-07-07 |
| WJA47 | - | 5 | 2026-06-26 |
| WJA46 | - | 5 | 2026-06-28 |
| WJA455 | - | 5 | 2026-06-28 |
| WJA37 | - | 5 | 2026-07-19 |
| WJA811 | WestJet | 4 | 2026-07-23 |
| WJA739 | WestJet | 4 | 2026-04-17 |
| WJA712 | WestJet | 4 | 2026-06-02 |
| WJA576 | WestJet | 4 | 2026-07-22 |
| WJA460 | - | 4 | 2026-06-29 |
| WJA382 | WestJet | 4 | 2026-07-20 |
| WJA36 | - | 4 | 2026-07-19 |
| WJA35 | - | 4 | 2026-04-16 |
| WJA2201 | WestJet | 4 | 2026-06-17 |
| WJA2200 | - | 4 | 2026-06-17 |
| WJA2129 | - | 4 | 2026-06-29 |
| WJA8940 | - | 3 | 2026-04-13 |
| WJA705 | WestJet | 3 | 2026-04-15 |
| WJA685 | - | 3 | 2026-07-05 |
| WJA64 | - | 3 | 2026-06-24 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | WJA2262 | YYC → LIR | Jul 26, 06:35 UTC | Jul 26, 21:25 UTC | 14h 50m |
| 2026-07-26 | WJA233 | YHZ → YYC | Jul 26, 00:15 UTC | Jul 26, 02:15 UTC | 2h 0m |
| 2026-07-25 | WJA591 | YHZ → YWG | Jul 25, 19:40 UTC | Jul 25, 23:15 UTC | 3h 35m |
| 2026-07-25 | WJA15 | MAD → YHZ | Jul 25, 11:55 UTC | Jul 25, 17:40 UTC | 5h 45m |
| 2026-07-25 | WJA14 | YHZ → MAD | Jul 25, 03:55 UTC | Jul 25, 09:50 UTC | 5h 55m |
| 2026-07-24 | WJA672 | YYC → YYZ | Jul 24, 19:40 UTC | Jul 24, 23:50 UTC | 4h 10m |
| 2026-07-24 | WJA635 | YYZ → YYC | Jul 24, 14:15 UTC | Jul 24, 18:15 UTC | 4h 0m |
| 2026-07-23 | WJA811 | YHZ → YYZ | Jul 23, 23:30 UTC | Jul 24, 01:25 UTC | 1h 55m |
| 2026-07-23 | WJA808 | YYZ → YHZ | Jul 23, 20:25 UTC | Jul 23, 22:05 UTC | 1h 40m |
| 2026-07-23 | WJA803 | YHZ → YYZ | Jul 23, 16:40 UTC | Jul 23, 18:35 UTC | 1h 55m |
| 2026-07-23 | WJA43 | DUB → YHZ | Jul 23, 09:30 UTC | Jul 23, 14:40 UTC | 5h 10m |
| 2026-07-23 | WJA42 | YHZ → CDG | Jul 23, 02:25 UTC | Jul 23, 07:35 UTC | 5h 10m |
| 2026-07-22 | WJA576 | YEG → YWG | Jul 22, 20:00 UTC | Jul 23, 00:15 UTC | 4h 15m |
| 2026-07-21 | WJA581 | YHZ → YEG | Jul 21, 20:10 UTC | Jul 22, 01:05 UTC | 4h 55m |
| 2026-07-21 | WJA14 | YHZ → MAD | Jul 21, 01:48 UTC | Jul 22, 01:00 UTC | 23h 12m |
| 2026-07-20 | WJA382 | YWG → YYZ | Jul 20, 16:05 UTC | Jul 20, 18:05 UTC | 2h 0m |
| 2026-07-20 | WJA382 | YWG → YYZ | Jul 20, 16:03 UTC | Jul 21, 15:00 UTC | 22h 57m |
| 2026-07-20 | WJA381 | YYZ → YWG | Jul 20, 12:20 UTC | Jul 20, 14:40 UTC | 2h 20m |
| 2026-07-19 | WJA386 | YWG → YYZ | Jul 19, 23:50 UTC | Jul 20, 01:50 UTC | 2h 0m |
| 2026-07-19 | WJA385 | YHZ → YVR | Jul 19, 20:10 UTC | Jul 19, 22:30 UTC | 2h 20m |
| 2026-07-19 | WJA37 | EDI → YYZ | Jul 19, 10:55 UTC | Jul 19, 17:50 UTC | 6h 55m |
| 2026-07-19 | WJA36 | - | Jul 19, 02:35 UTC | Jul 19, 08:55 UTC | 6h 20m |
| 2026-07-18 | WJA2221 | CUN → YEG | Jul 18, 13:15 UTC | Jul 18, 23:50 UTC | 10h 35m |
| 2026-07-17 | WJA2855 | CUN → YYZ | Jul 17, 22:29 UTC | Jul 18, 02:19 UTC | 3h 50m |
| 2026-07-17 | WJA2852 | YYZ → CUN | Jul 17, 17:15 UTC | Jul 17, 20:44 UTC | 3h 30m |
| 2026-07-17 | WJA378 | - | Jul 17, 12:50 UTC | Jul 17, 14:44 UTC | 1h 55m |
| 2026-07-16 | WJA391 | YYZ → YWG | Jul 16, 22:40 UTC | Jul 17, 01:00 UTC | 2h 20m |
| 2026-07-16 | WJA809 | - | Jul 16, 18:59 UTC | Jul 16, 21:00 UTC | 2h 0m |
| 2026-07-16 | WJA802 | - | Jul 16, 15:30 UTC | Jul 16, 17:00 UTC | 1h 30m |
| 2026-07-16 | WJA801 | - | Jul 16, 11:34 UTC | Jul 16, 13:34 UTC | 2h 0m |
| 2026-07-11 | WJA1051 | - | Jul 11, 21:50 UTC | Jul 11, 23:45 UTC | 1h 55m |
| 2026-07-11 | WJA1620 | - | Jul 11, 17:30 UTC | Jul 11, 20:35 UTC | 3h 5m |
| 2026-07-11 | WJA1501 | - | Jul 11, 13:15 UTC | Jul 11, 15:10 UTC | 1h 55m |
| 2026-07-11 | WJA1504 | YYC → SFO | Jul 11, 03:50 UTC | Jul 11, 06:25 UTC | 2h 35m |
| 2026-07-10 | WJA617 | - | Jul 10, 20:30 UTC | Jul 11, 00:30 UTC | 4h 0m |
| 2026-07-10 | WJA616 | - | Jul 10, 15:40 UTC | Jul 10, 19:00 UTC | 3h 20m |
| 2026-07-09 | WJA1621 | DTW → YYC | Jul 9, 23:00 UTC | Jul 10, 02:45 UTC | 3h 45m |
| 2026-07-09 | WJA1050 | - | Jul 9, 19:10 UTC | Jul 9, 21:30 UTC | 2h 20m |
| 2026-07-09 | WJA66 | - | Jul 9, 02:10 UTC | Jul 9, 08:15 UTC | 6h 5m |
| 2026-07-09 | WJA66 | YHZ → BCN | Jul 9, 02:05 UTC | Jul 10, 01:00 UTC | 22h 55m |
| 2026-07-08 | WJA672 | - | Jul 8, 19:40 UTC | Jul 8, 23:50 UTC | 4h 10m |
| 2026-07-08 | WJA393 | - | Jul 8, 12:15 UTC | Jul 8, 13:15 UTC | 1h 0m |
| 2026-07-07 | WJA781 | YYT → YYZ | Jul 7, 17:37 UTC | Jul 8, 13:15 UTC | 19h 38m |
| 2026-07-07 | WJA781 | YYT → YYZ | Jul 7, 09:40 UTC | Jul 7, 20:30 UTC | 10h 50m |
| 2026-07-07 | WJA52 | - | Jul 7, 07:00 UTC | Jul 7, 07:45 UTC | 45m |
| 2026-07-06 | WJA559 | YUL → YYC | Jul 6, 11:34 UTC | Jul 7, 10:25 UTC | 22h 52m |
| 2026-07-06 | WJA566 | YYC → YUL | Jul 6, 00:23 UTC | Jul 6, 21:00 UTC | 20h 38m |
| 2026-07-05 | WJA684 | YZF → YYC | Jul 5, 20:54 UTC | Jul 6, 19:00 UTC | 22h 7m |
| 2026-07-05 | WJA685 | YYC → YYC | Jul 5, 17:30 UTC | Jul 5, 22:45 UTC | 5h 15m |
| 2026-07-05 | WJA613 | - | Jul 5, 11:30 UTC | Jul 5, 15:40 UTC | 4h 10m |
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-GXAX page for operator, model, and routing details .