sensors Mode-S transponder
C04127
ICAO 24-bit transponder address · allocated to Canada
Currently assigned to C-FYRM · SIKORSKY S-76 Spirit · operated by Harv's Air Service Ltd.
- Hex
- C04127
- Octal
- 60040447
- Decimal
- 12,599,591
- Country
- CA
- Tail
- C-FYRM
- Type
- S76
- Flights observed
- 60
- Distinct callsigns
- 1
- Country
- CA
- Last broadcast
- 4d ago
Last known position
Country allocation
The ICAO 24-bit address C04127 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CFYRM | - | 60 | 2026-07-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-15 | CFYRM | - | Jul 15, 21:30 UTC | Jul 15, 22:25 UTC | 55m |
| 2026-07-15 | CFYRM | - | Jul 15, 19:50 UTC | Jul 15, 20:15 UTC | 25m |
| 2026-07-15 | CFYRM | - | Jul 15, 15:45 UTC | Jul 15, 16:05 UTC | 20m |
| 2026-07-13 | CFYRM | - | Jul 13, 19:25 UTC | Jul 13, 22:45 UTC | 3h 20m |
| 2026-07-13 | CFYRM | - | Jul 13, 15:55 UTC | Jul 13, 17:10 UTC | 1h 15m |
| 2026-07-12 | CFYRM | - | Jul 12, 16:25 UTC | Jul 12, 17:25 UTC | 1h 0m |
| 2026-07-10 | CFYRM | - | Jul 10, 21:10 UTC | Jul 10, 21:45 UTC | 35m |
| 2026-07-10 | CFYRM | - | Jul 10, 16:00 UTC | Jul 10, 17:40 UTC | 1h 40m |
| 2026-07-07 | CFYRM | - | Jul 7, 16:00 UTC | Jul 7, 16:25 UTC | 25m |
| 2026-07-07 | CFYRM | - | Jul 7, 15:00 UTC | Jul 7, 15:40 UTC | 40m |
| 2026-07-07 | CFYRM | - | Jul 7, 00:05 UTC | Jul 7, 01:45 UTC | 1h 40m |
| 2026-07-06 | CFYRM | - | Jul 6, 19:10 UTC | Jul 6, 23:05 UTC | 3h 55m |
| 2026-07-04 | CFYRM | - | Jul 4, 21:15 UTC | Jul 4, 22:10 UTC | 55m |
| 2026-07-04 | CFYRM | - | Jul 4, 18:40 UTC | Jul 4, 19:00 UTC | 20m |
| 2026-07-04 | CFYRM | - | Jul 4, 14:55 UTC | Jul 4, 17:35 UTC | 2h 40m |
| 2026-07-04 | CFYRM | - | Jul 4, 00:00 UTC | Jul 4, 01:20 UTC | 1h 20m |
| 2026-07-02 | CFYRM | - | Jul 2, 23:05 UTC | Jul 2, 23:40 UTC | 35m |
| 2026-06-27 | CFYRM | - | Jun 27, 15:19 UTC | Jun 27, 15:49 UTC | 30m |
| 2026-06-27 | CFYRM | - | Jun 27, 05:19 UTC | Jun 27, 06:35 UTC | 1h 15m |
| 2026-06-26 | CFYRM | - | Jun 26, 14:39 UTC | Jun 26, 17:04 UTC | 2h 25m |
| 2026-06-22 | CFYRM | - | Jun 22, 16:34 UTC | Jun 22, 17:25 UTC | 50m |
| 2026-06-21 | CFYRM | - | Jun 21, 19:39 UTC | Jun 21, 20:40 UTC | 1h 0m |
| 2026-06-20 | CFYRM | - | Jun 20, 16:55 UTC | Jun 20, 17:54 UTC | 1h 0m |
| 2026-06-18 | CFYRM | - | Jun 18, 01:00 UTC | Jun 18, 01:20 UTC | 20m |
| 2026-06-17 | CFYRM | - | Jun 17, 23:00 UTC | Jun 17, 23:20 UTC | 20m |
| 2026-06-17 | CFYRM | - | Jun 17, 21:15 UTC | Jun 17, 21:45 UTC | 30m |
| 2026-06-17 | CFYRM | - | Jun 17, 17:10 UTC | Jun 17, 18:50 UTC | 1h 40m |
| 2026-06-16 | CFYRM | - | Jun 16, 15:24 UTC | Jun 16, 17:40 UTC | 2h 15m |
| 2026-06-09 | CFYRM | - | Jun 9, 23:00 UTC | Jun 9, 23:55 UTC | 55m |
| 2026-06-06 | CFYRM | - | Jun 6, 20:39 UTC | Jun 6, 21:30 UTC | 50m |
| 2026-06-06 | CFYRM | - | Jun 6, 18:39 UTC | Jun 6, 19:24 UTC | 45m |
| 2026-05-29 | CFYRM | - | May 29, 23:10 UTC | May 29, 23:55 UTC | 45m |
| 2026-05-29 | CFYRM | - | May 29, 18:50 UTC | May 29, 19:45 UTC | 55m |
| 2026-05-29 | CFYRM | - | May 29, 14:50 UTC | May 29, 15:35 UTC | 45m |
| 2026-05-27 | CFYRM | - | May 27, 20:35 UTC | May 27, 21:25 UTC | 50m |
| 2026-05-27 | CFYRM | - | May 27, 15:30 UTC | May 27, 16:25 UTC | 55m |
| 2026-05-26 | CFYRM | - | May 26, 16:10 UTC | May 26, 16:59 UTC | 50m |
| 2026-05-25 | CFYRM | - | May 25, 22:40 UTC | May 25, 23:49 UTC | 1h 10m |
| 2026-05-24 | CFYRM | - | May 24, 20:10 UTC | May 24, 21:10 UTC | 1h 0m |
| 2026-05-24 | CFYRM | - | May 24, 17:25 UTC | May 24, 18:30 UTC | 1h 5m |
| 2026-05-23 | CFYRM | - | May 23, 19:20 UTC | May 23, 20:00 UTC | 40m |
| 2026-05-22 | CFYRM | - | May 22, 22:05 UTC | May 22, 22:50 UTC | 45m |
| 2026-05-02 | CFYRM | - | May 2, 21:45 UTC | May 2, 22:25 UTC | 40m |
| 2026-05-02 | CFYRM | - | May 2, 18:15 UTC | May 2, 18:50 UTC | 35m |
| 2026-05-02 | CFYRM | - | May 2, 14:20 UTC | May 2, 15:00 UTC | 40m |
| 2026-04-26 | CFYRM | - | Apr 26, 21:15 UTC | Apr 26, 21:40 UTC | 25m |
| 2026-04-26 | CFYRM | FAR → YWG | Apr 26, 19:00 UTC | Apr 26, 20:45 UTC | 1h 45m |
| 2026-04-25 | CFYRM | - | Apr 25, 11:10 UTC | Apr 25, 13:05 UTC | 1h 55m |
| 2026-04-24 | CFYRM | - | Apr 24, 19:30 UTC | Apr 24, 21:25 UTC | 1h 55m |
| 2026-04-22 | CFYRM | - | Apr 22, 20:45 UTC | Apr 22, 22:25 UTC | 1h 40m |
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-FYRM page for operator, model, and routing details .