sensors Mode-S transponder
C08870
ICAO 24-bit transponder address · allocated to Canada
Currently assigned to C-GZRJ · AVRO RJ-100 Avroliner · operated by Summit Air Ltd. (Summit Air)
- Hex
- C08870
- Octal
- 60104160
- Decimal
- 12,617,840
- Country
- CA
- Tail
- C-GZRJ
- Type
- RJ1H
- Flights observed
- 12
- Distinct callsigns
- 7
- Country
- CA
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address C08870 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 7 distinct
Recent flights last 12
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-27 | SUT8581 | - | May 27, 04:30 UTC | May 27, 17:55 UTC | 13h 25m |
| 2026-05-20 | SUT8585 | - | May 20, 04:25 UTC | May 20, 17:55 UTC | 13h 31m |
| 2026-05-12 | SUT8181 | - | May 12, 16:25 UTC | May 13, 05:50 UTC | 13h 25m |
| 2026-05-08 | SUT0222 | YHU → YHU | May 8, 18:25 UTC | May 8, 18:45 UTC | 20m |
| 2026-04-28 | SUT8081 | - | Apr 28, 16:10 UTC | Apr 28, 17:55 UTC | 1h 45m |
| 2026-04-21 | SUT8081 | - | Apr 21, 16:10 UTC | Apr 22, 05:10 UTC | 13h 0m |
| 2026-04-16 | SUT8085 | - | Apr 16, 10:19 UTC | Apr 16, 11:04 UTC | 45m |
| 2026-04-15 | SUT8081 | - | Apr 15, 21:45 UTC | Apr 15, 22:25 UTC | 40m |
| 2026-04-15 | SUT8585 | - | Apr 15, 19:35 UTC | Apr 15, 20:20 UTC | 45m |
| 2026-04-15 | SUT8581 | - | Apr 15, 06:05 UTC | Apr 15, 06:40 UTC | 35m |
| 2026-04-15 | SUT8084 | - | Apr 15, 03:35 UTC | Apr 15, 04:20 UTC | 45m |
| 2026-04-14 | SUT8081 | - | Apr 14, 16:10 UTC | Apr 14, 16:45 UTC | 35m |
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-GZRJ page for operator, model, and routing details .