sensors Mode-S transponder
C0656F
ICAO 24-bit transponder address · allocated to Canada
Currently assigned to C-GMKS · BOEING 787-9 Dreamliner · operated by Westjet
- Hex
- C0656F
- Octal
- 60062557
- Decimal
- 12,608,879
- Country
- CA
- Tail
- C-GMKS
- Type
- B789
- Flights observed
- 26
- Distinct callsigns
- 13
- Country
- CA
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address C0656F 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 13 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| WJA81 | WestJet | 4 | 2026-05-28 |
| WJA80 | WestJet | 4 | 2026-05-27 |
| WJA24 | WestJet | 3 | 2026-05-22 |
| WJA87 | WestJet | 2 | 2026-05-29 |
| WJA86 | WestJet | 2 | 2026-05-28 |
| WJA25 | WestJet | 2 | 2026-05-22 |
| WJA20 | WestJet | 2 | 2026-05-18 |
| WJA2 | - | 2 | 2026-05-23 |
| WJA9 | WestJet | 1 | 2026-05-20 |
| WJA8985 | WestJet | 1 | 2026-05-16 |
| WJA29 | WestJet | 1 | 2026-05-24 |
| WJA28 | WestJet | 1 | 2026-05-24 |
| WJA10 | WestJet | 1 | 2026-05-20 |
Recent flights last 26
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | WJA87 | ICN → YYC | May 29, 12:25 UTC | May 29, 22:30 UTC | 10h 5m |
| 2026-05-28 | WJA86 | YYC → ICN | May 28, 22:25 UTC | May 29, 10:05 UTC | 11h 40m |
| 2026-05-28 | WJA81 | NRT → YYC | May 28, 09:45 UTC | May 28, 18:55 UTC | 9h 10m |
| 2026-05-27 | WJA80 | YYC → NRT | May 27, 21:10 UTC | May 28, 07:05 UTC | 9h 55m |
| 2026-05-27 | WJA81 | NRT → YYC | May 27, 09:35 UTC | May 27, 18:40 UTC | 9h 5m |
| 2026-05-27 | WJA81 | NRT → YYC | May 27, 09:34 UTC | May 28, 07:05 UTC | 21h 31m |
| 2026-05-26 | WJA80 | YYC → NRT | May 26, 21:04 UTC | May 27, 06:49 UTC | 9h 45m |
| 2026-05-26 | WJA81 | NRT → YYC | May 26, 09:34 UTC | May 27, 06:55 UTC | 21h 21m |
| 2026-05-25 | WJA80 | YYC → NRT | May 25, 20:59 UTC | May 26, 01:30 UTC | 4h 30m |
| 2026-05-25 | WJA80 | YYC → NRT | May 25, 20:59 UTC | May 26, 18:24 UTC | 21h 26m |
| 2026-05-24 | WJA29 | BCN → YYC | May 24, 13:45 UTC | May 24, 23:20 UTC | 9h 35m |
| 2026-05-24 | WJA28 | YYC → BCN | May 24, 01:10 UTC | May 24, 23:20 UTC | 22h 10m |
| 2026-05-23 | WJA2 | - | May 23, 02:45 UTC | May 23, 03:25 UTC | 40m |
| 2026-05-23 | WJA2 | YYC → LHR | May 23, 02:44 UTC | May 24, 01:45 UTC | 23h 2m |
| 2026-05-22 | WJA25 | LGW → YHZ | May 22, 13:25 UTC | May 22, 23:10 UTC | 9h 45m |
| 2026-05-22 | WJA24 | YHZ → LGW | May 22, 01:21 UTC | May 22, 23:35 UTC | 22h 15m |
| 2026-05-22 | WJA24 | YHZ → LGW | May 22, 01:25 UTC | May 22, 11:20 UTC | 9h 54m |
| 2026-05-20 | WJA9 | CDG → YYC | May 20, 15:50 UTC | May 21, 00:30 UTC | 8h 40m |
| 2026-05-20 | WJA10 | YYC → CDG | May 20, 01:50 UTC | May 20, 10:10 UTC | 8h 21m |
| 2026-05-19 | WJA25 | LGW → YHZ | May 19, 13:20 UTC | May 19, 23:05 UTC | 9h 45m |
| 2026-05-19 | WJA24 | YHZ → LGW | May 19, 01:15 UTC | May 19, 10:35 UTC | 9h 20m |
| 2026-05-18 | WJA20 | YYC → AMS | May 18, 01:15 UTC | May 18, 01:45 UTC | 30m |
| 2026-05-18 | WJA20 | YYC → AMS | May 18, 01:15 UTC | May 18, 18:55 UTC | 17h 40m |
| 2026-05-17 | WJA87 | ICN → YYC | May 17, 12:35 UTC | May 17, 22:15 UTC | 9h 40m |
| 2026-05-16 | WJA86 | YYC → ICN | May 16, 22:15 UTC | May 17, 09:00 UTC | 10h 45m |
| 2026-05-16 | WJA8985 | SAT → YYC | May 16, 15:45 UTC | May 16, 19:10 UTC | 3h 25m |
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-GMKS page for operator, model, and routing details .