sensors Mode-S transponder
C04FF4
ICAO 24-bit transponder address · allocated to Canada
Currently assigned to C-GEHF · BOEING 737 MAX 8 · operated by Westjet
- Hex
- C04FF4
- Octal
- 60047764
- Decimal
- 12,603,380
- Country
- CA
- Tail
- C-GEHF
- Type
- B38M
- Flights observed
- 132
- Distinct callsigns
- 20
- Country
- CA
- Last broadcast
- 3h ago
Current position
Country allocation
The ICAO 24-bit address C04FF4 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 |
|---|---|---|---|
| WJA41 | WestJet | 5 | 2026-05-19 |
| WJA762 | WestJet | 4 | 2026-05-24 |
| WJA714 | WestJet | 4 | 2026-05-11 |
| WJA711 | WestJet | 4 | 2026-04-16 |
| WJA800 | WestJet | 3 | 2026-05-12 |
| WJA761 | WestJet | 3 | 2026-05-24 |
| WJA704 | WestJet | 3 | 2026-04-14 |
| WJA686 | WestJet | 3 | 2026-05-18 |
| WJA667 | WestJet | 3 | 2026-04-15 |
| WJA642 | - | 3 | 2026-04-15 |
| WJA591 | WestJet | 3 | 2026-05-23 |
| WJA539 | - | 3 | 2026-04-13 |
| WJA34 | WestJet | 3 | 2026-04-18 |
| WJA2604 | WestJet | 3 | 2026-05-01 |
| WJA234 | WestJet | 3 | 2026-05-22 |
| WJA233 | WestJet | 3 | 2026-05-24 |
| WJA975 | - | 2 | 2026-04-20 |
| WJA780 | WestJet | 2 | 2026-05-08 |
| WJA636 | WestJet | 2 | 2026-05-08 |
| WJA60 | WestJet | 2 | 2026-05-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | WJA553 | YYC → YCD | May 29, 17:33 UTC | May 29, 21:20 UTC | 3h 47m |
| 2026-05-29 | WJA553 | YYC → YCD | May 29, 17:35 UTC | May 29, 18:50 UTC | 1h 15m |
| 2026-05-28 | WJA113 | YYC → YVR | May 28, 17:17 UTC | May 28, 22:55 UTC | 5h 38m |
| 2026-05-28 | WJA273 | YHZ → YYZ | May 28, 05:49 UTC | May 28, 22:55 UTC | 17h 6m |
| 2026-05-28 | WJA273 | YHZ → YYZ | May 28, 05:50 UTC | May 28, 07:00 UTC | 1h 10m |
| 2026-05-27 | WJA2201 | CUN → YYC | May 27, 23:50 UTC | May 28, 03:50 UTC | 4h 0m |
| 2026-05-27 | WJA2200 | YYC → MEX | May 27, 19:50 UTC | May 27, 20:00 UTC | 10m |
| 2026-05-27 | WJA2200 | YYC → MEX | May 27, 14:35 UTC | May 27, 18:50 UTC | 4h 15m |
| 2026-05-26 | WJA675 | YYZ → YYC | May 26, 23:10 UTC | May 27, 04:19 UTC | 5h 10m |
| 2026-05-26 | WJA60 | YYC → EDI | May 26, 01:19 UTC | May 26, 21:49 UTC | 20h 31m |
| 2026-05-26 | WJA60 | YYC → EDI | May 26, 01:20 UTC | May 26, 01:55 UTC | 35m |
| 2026-05-25 | WJA1591 | ATL → YYC | May 25, 18:50 UTC | May 25, 22:49 UTC | 3h 59m |
| 2026-05-25 | WJA1590 | YYC → ATL | May 25, 13:15 UTC | May 25, 17:05 UTC | 3h 50m |
| 2026-05-24 | WJA761 | YCD → YEG | May 24, 10:34 UTC | May 25, 03:25 UTC | 16h 51m |
| 2026-05-24 | WJA762 | YYC → YYT | May 24, 03:55 UTC | May 24, 08:05 UTC | 4h 10m |
| 2026-05-24 | WJA233 | YHZ → YYC | May 24, 00:15 UTC | May 24, 02:05 UTC | 1h 50m |
| 2026-05-23 | WJA591 | YHZ → YWG | May 23, 19:15 UTC | May 23, 23:10 UTC | 3h 55m |
| 2026-05-23 | WJA63 | CDG → YHZ | May 23, 10:15 UTC | May 23, 16:40 UTC | 6h 25m |
| 2026-05-23 | WJA62 | YHZ → CDG | May 23, 02:40 UTC | May 23, 08:00 UTC | 5h 20m |
| 2026-05-22 | WJA590 | YWG → YHZ | May 22, 21:10 UTC | May 23, 00:15 UTC | 3h 5m |
| 2026-05-22 | WJA234 | YYC → YHZ | May 22, 04:12 UTC | May 23, 03:00 UTC | 22h 48m |
| 2026-05-22 | WJA234 | YYC → YHZ | May 22, 04:15 UTC | May 22, 05:50 UTC | 1h 35m |
| 2026-05-20 | WJA617 | YOW → YYC | May 20, 20:45 UTC | May 21, 01:05 UTC | 4h 21m |
| 2026-05-20 | WJA616 | YYC → YOW | May 20, 16:00 UTC | May 20, 19:20 UTC | 3h 20m |
| 2026-05-20 | WJA233 | YHZ → YYC | May 20, 00:25 UTC | May 20, 02:10 UTC | 1h 45m |
| 2026-05-20 | WJA233 | YHZ → YYC | May 20, 00:22 UTC | May 20, 23:00 UTC | 22h 39m |
| 2026-05-19 | WJA591 | YHZ → YWG | May 19, 19:35 UTC | May 19, 23:25 UTC | 3h 50m |
| 2026-05-19 | WJA41 | LGW → YHZ | May 19, 10:25 UTC | May 19, 16:25 UTC | 6h 0m |
| 2026-05-18 | WJA686 | YWG → YOW | May 18, 13:09 UTC | May 19, 11:55 UTC | 22h 46m |
| 2026-05-17 | WJA591 | YHZ → YWG | May 17, 19:22 UTC | May 18, 19:00 UTC | 23h 38m |
| 2026-05-17 | WJA41 | LGW → YHZ | May 17, 10:24 UTC | May 18, 05:50 UTC | 19h 27m |
| 2026-05-17 | WJA41 | LGW → YHZ | May 17, 10:25 UTC | May 17, 16:30 UTC | 6h 5m |
| 2026-05-16 | WJA686 | YWG → YOW | May 16, 13:11 UTC | May 17, 11:55 UTC | 22h 45m |
| 2026-05-16 | WJA686 | YWG → YOW | May 16, 13:15 UTC | May 16, 15:01 UTC | 1h 45m |
| 2026-05-16 | WJA234 | YYC → YHZ | May 16, 04:20 UTC | May 16, 06:06 UTC | 1h 46m |
| 2026-05-15 | WJA1485 | PSP → YEG | May 15, 22:40 UTC | May 16, 01:25 UTC | 2h 45m |
| 2026-05-15 | WJA1484 | YEG → PSP | May 15, 18:10 UTC | May 15, 21:05 UTC | 2h 55m |
| 2026-05-15 | WJA761 | YCD → YEG | May 15, 03:50 UTC | May 15, 16:15 UTC | 12h 24m |
| 2026-05-14 | WJA41 | LGW → YHZ | May 14, 10:31 UTC | May 15, 04:55 UTC | 18h 25m |
| 2026-05-14 | WJA41 | LGW → YHZ | May 14, 10:31 UTC | May 14, 16:50 UTC | 6h 20m |
| 2026-05-14 | WJA40 | YHZ → LGW | May 14, 03:05 UTC | May 14, 08:45 UTC | 5h 40m |
| 2026-05-13 | WJA42 | YHZ → CDG | May 13, 02:24 UTC | May 13, 15:00 UTC | 12h 37m |
| 2026-05-12 | WJA800 | YYZ → YHZ | May 12, 11:45 UTC | May 12, 13:30 UTC | 1h 45m |
| 2026-05-12 | WJA800 | YYZ → YHZ | May 12, 11:42 UTC | May 13, 10:10 UTC | 22h 29m |
| 2026-05-11 | WJA714 | YVR → YYZ | May 11, 20:35 UTC | May 11, 22:35 UTC | 1h 59m |
| 2026-05-11 | WJA713 | YYZ → YVR | May 11, 13:40 UTC | May 11, 18:40 UTC | 5h 1m |
| 2026-05-10 | WJA8936 | YVR → YYC | May 10, 14:30 UTC | May 10, 23:55 UTC | 9h 25m |
| 2026-05-09 | WJA50 | YHZ → DUB | May 9, 03:31 UTC | May 9, 14:15 UTC | 10h 44m |
| 2026-05-08 | WJA780 | YYZ → YYT | May 8, 22:30 UTC | May 9, 08:35 UTC | 10h 5m |
| 2026-05-08 | WJA636 | YYC → YYZ | May 8, 17:40 UTC | May 8, 20:55 UTC | 3h 15m |
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-GEHF page for operator, model, and routing details .