sensors Mode-S transponder
C05DA4
ICAO 24-bit transponder address · allocated to Canada
Currently assigned to C-GJLZ · BOEING 737-800 · operated by Westjet
- Hex
- C05DA4
- Octal
- 60056644
- Decimal
- 12,606,884
- Country
- CA
- Tail
- C-GJLZ
- Type
- B738
- Flights observed
- 112
- Distinct callsigns
- 20
- Country
- CA
- Last broadcast
- 11h ago
Last known position
Country allocation
The ICAO 24-bit address C05DA4 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 |
|---|---|---|---|
| WJA2151 | WestJet | 4 | 2026-05-17 |
| WJA1057 | WestJet | 4 | 2026-05-15 |
| WJA1056 | WestJet | 4 | 2026-05-15 |
| WJA539 | WestJet | 3 | 2026-05-20 |
| WJA2412 | WestJet | 3 | 2026-04-14 |
| WJA2301 | WestJet | 3 | 2026-04-14 |
| WJA1850 | WestJet | 3 | 2026-05-17 |
| WJA1590 | WestJet | 3 | 2026-04-16 |
| WJA731 | WestJet | 2 | 2026-05-11 |
| WJA714 | WestJet | 2 | 2026-05-08 |
| WJA544 | WestJet | 2 | 2026-05-19 |
| WJA505 | WestJet | 2 | 2026-04-15 |
| WJA504 | WestJet | 2 | 2026-04-16 |
| WJA485 | WestJet | 2 | 2026-04-15 |
| WJA384 | WestJet | 2 | 2026-05-03 |
| WJA332 | WestJet | 2 | 2026-04-22 |
| WJA325 | WestJet | 2 | 2026-04-22 |
| WJA318 | WestJet | 2 | 2026-04-21 |
| WJA271 | WestJet | 2 | 2026-04-19 |
| WJA2273 | WestJet | 2 | 2026-05-10 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | WJA1681 | JFK → YYC | May 29, 22:00 UTC | May 30, 02:40 UTC | 4h 40m |
| 2026-05-29 | WJA1680 | YYC → JFK | May 29, 16:15 UTC | May 29, 20:25 UTC | 4h 10m |
| 2026-05-29 | WJA223 | YWG → YYC | May 29, 12:25 UTC | May 29, 14:00 UTC | 1h 35m |
| 2026-05-28 | WJA230 | YYC → YHZ | May 28, 20:45 UTC | May 28, 22:35 UTC | 1h 50m |
| 2026-05-28 | WJA633 | YYZ → YYC | May 28, 13:25 UTC | May 28, 17:05 UTC | 3h 40m |
| 2026-05-26 | WJA803 | YHZ → YYZ | May 26, 16:55 UTC | May 26, 18:55 UTC | 2h 0m |
| 2026-05-21 | WJA806 | YYZ → YHZ | May 21, 22:40 UTC | May 22, 00:10 UTC | 1h 30m |
| 2026-05-21 | WJA710 | YVR → YYZ | May 21, 16:10 UTC | May 21, 20:15 UTC | 4h 5m |
| 2026-05-20 | WJA2150 | YVR → PVR | May 20, 16:50 UTC | May 20, 19:40 UTC | 2h 50m |
| 2026-05-20 | WJA2150 | YVR → PVR | May 20, 16:50 UTC | May 21, 03:35 UTC | 10h 46m |
| 2026-05-20 | WJA539 | YWG → YYC | May 20, 12:00 UTC | May 20, 14:45 UTC | 2h 45m |
| 2026-05-19 | WJA544 | YYC → YKF | May 19, 22:20 UTC | May 20, 00:45 UTC | 2h 25m |
| 2026-05-19 | WJA1583 | DTW → YVR | May 19, 13:55 UTC | May 19, 18:20 UTC | 4h 25m |
| 2026-05-18 | WJA1582 | YVR → DTW | May 18, 20:45 UTC | May 19, 00:45 UTC | 4h 0m |
| 2026-05-17 | WJA2151 | PVR → YVR | May 17, 22:37 UTC | May 18, 21:00 UTC | 22h 23m |
| 2026-05-17 | WJA2151 | PVR → YVR | May 17, 16:50 UTC | May 18, 03:45 UTC | 10h 55m |
| 2026-05-17 | WJA1850 | YVR → OGG | May 17, 02:00 UTC | May 17, 14:45 UTC | 12h 45m |
| 2026-05-16 | WJA1723 | PSP → YVR | May 16, 20:45 UTC | May 16, 23:40 UTC | 2h 55m |
| 2026-05-16 | WJA1722 | YVR → PSP | May 16, 17:15 UTC | May 16, 19:30 UTC | 2h 15m |
| 2026-05-16 | WJA1851 | OGG → YVR | May 16, 14:31 UTC | May 16, 15:05 UTC | 35m |
| 2026-05-15 | WJA1057 | LAS → YVR | May 15, 20:50 UTC | May 15, 21:00 UTC | 10m |
| 2026-05-15 | WJA1056 | YVR → LAS | May 15, 17:00 UTC | May 15, 19:15 UTC | 2h 15m |
| 2026-05-15 | WJA1056 | YVR → LAS | May 15, 16:55 UTC | May 16, 15:01 UTC | 22h 6m |
| 2026-05-14 | WJA1057 | LAS → YVR | May 14, 20:42 UTC | May 15, 19:00 UTC | 22h 18m |
| 2026-05-14 | WJA1851 | OGG → YVR | May 14, 09:19 UTC | May 15, 07:55 UTC | 22h 37m |
| 2026-05-13 | WJA1722 | YVR → PSP | May 13, 16:21 UTC | May 14, 14:30 UTC | 22h 10m |
| 2026-05-12 | WJA118 | YVR → YYC | May 12, 21:30 UTC | May 12, 22:35 UTC | 1h 5m |
| 2026-05-12 | WJA118 | YVR → YYC | May 12, 21:30 UTC | May 13, 21:00 UTC | 23h 31m |
| 2026-05-12 | WJA1601 | ATL → YVR | May 12, 12:40 UTC | May 12, 17:50 UTC | 5h 10m |
| 2026-05-12 | WJA1606 | YVR → ATL | May 12, 06:05 UTC | May 12, 10:15 UTC | 4h 10m |
| 2026-05-11 | WJA2050 | YVR → HUX | May 11, 14:10 UTC | May 12, 03:45 UTC | 13h 36m |
| 2026-05-11 | WJA731 | YYZ → YVR | May 11, 02:54 UTC | May 11, 18:20 UTC | 15h 27m |
| 2026-05-10 | WJA2273 | ZLO → YYC | May 10, 19:16 UTC | May 11, 18:20 UTC | 23h 5m |
| 2026-05-10 | WJA2273 | ZLO → YYC | May 10, 13:35 UTC | May 11, 00:00 UTC | 10h 25m |
| 2026-05-10 | WJA859 | YUL → YYZ | May 10, 11:05 UTC | May 10, 12:00 UTC | 55m |
| 2026-05-09 | WJA2953 | FPO → YUL | May 9, 14:35 UTC | May 9, 17:15 UTC | 2h 40m |
| 2026-05-08 | WJA714 | YVR → YYZ | May 8, 20:25 UTC | May 9, 00:25 UTC | 4h 0m |
| 2026-05-08 | WJA714 | YVR → YYZ | May 8, 20:20 UTC | May 9, 17:15 UTC | 20h 55m |
| 2026-05-08 | WJA713 | YYZ → YVR | May 8, 13:40 UTC | May 8, 18:35 UTC | 4h 55m |
| 2026-05-08 | WJA736 | YYC → YXU | May 8, 05:49 UTC | May 8, 09:54 UTC | 4h 5m |
| 2026-05-07 | WJA2151 | PVR → YVR | May 7, 16:40 UTC | May 8, 03:19 UTC | 10h 39m |
| 2026-05-07 | WJA1850 | YVR → OGG | May 7, 02:05 UTC | May 7, 02:55 UTC | 50m |
| 2026-05-07 | WJA1850 | YVR → OGG | May 7, 02:01 UTC | May 8, 01:00 UTC | 22h 59m |
| 2026-05-06 | WJA1057 | LAS → YVR | May 6, 20:15 UTC | May 6, 22:50 UTC | 2h 35m |
| 2026-05-06 | WJA1056 | YVR → LAS | May 6, 16:50 UTC | May 6, 19:05 UTC | 2h 15m |
| 2026-05-05 | WJA121 | YYC → YVR | May 5, 21:35 UTC | May 5, 22:40 UTC | 1h 5m |
| 2026-05-05 | WJA134 | YVR → YYC | May 5, 06:00 UTC | May 5, 07:05 UTC | 1h 5m |
| 2026-05-04 | WJA2151 | PVR → YVR | May 4, 16:40 UTC | May 5, 03:15 UTC | 10h 36m |
| 2026-05-04 | WJA731 | YYZ → YVR | May 4, 02:59 UTC | May 5, 01:00 UTC | 22h 2m |
| 2026-05-03 | WJA384 | YWG → YYZ | May 3, 21:31 UTC | May 4, 19:00 UTC | 21h 30m |
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-GJLZ page for operator, model, and routing details .