sensors Mode-S transponder
781012
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8601 · AIRBUS A-321
- Hex
- 781012
- Octal
- 36010022
- Decimal
- 7,868,434
- Country
- CN
- Tail
- B-8601
- Type
- A321
- Flights observed
- 31
- Distinct callsigns
- 12
- Country
- CN
- Last broadcast
- 24d ago
Last known position
Country allocation
The ICAO 24-bit address 781012 falls within the block assigned to China (CN) by ICAO Annex 10, Volume III. Every aircraft registered in China 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 12 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSC3935 | Sichuan Airlines | 6 | 2026-05-14 |
| CSC3936 | Sichuan Airlines | 4 | 2026-05-14 |
| CSC3932 | Sichuan Airlines | 4 | 2026-05-02 |
| CSC3912 | Sichuan Airlines | 4 | 2026-05-06 |
| CSC3931 | Sichuan Airlines | 3 | 2026-05-03 |
| CSC8832 | Sichuan Airlines | 2 | 2026-04-26 |
| CSC8831 | Sichuan Airlines | 2 | 2026-04-26 |
| CSC6788 | Sichuan Airlines | 2 | 2026-05-17 |
| CSC8830 | Sichuan Airlines | 1 | 2026-04-26 |
| CSC6879 | Sichuan Airlines | 1 | 2026-05-05 |
| CSC3960 | Sichuan Airlines | 1 | 2026-05-05 |
| CSC3959 | Sichuan Airlines | 1 | 2026-05-05 |
Recent flights last 31
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-17 | CSC6788 | ZUH → TFU | May 17, 04:10 UTC | May 17, 04:25 UTC | 15m |
| 2026-05-15 | CSC6788 | ZUH → TFU | May 15, 08:15 UTC | May 15, 08:25 UTC | 10m |
| 2026-05-14 | CSC3936 | BKK → TFU | May 14, 11:10 UTC | May 14, 12:05 UTC | 55m |
| 2026-05-14 | CSC3935 | TFU → BKK | May 14, 08:40 UTC | May 14, 09:35 UTC | 55m |
| 2026-05-11 | CSC3936 | BKK → TFU | May 11, 11:20 UTC | May 11, 12:15 UTC | 55m |
| 2026-05-11 | CSC3935 | TFU → BKK | May 11, 08:45 UTC | May 11, 09:45 UTC | 1h 0m |
| 2026-05-07 | CSC3936 | BKK → TFU | May 7, 11:30 UTC | May 7, 12:25 UTC | 55m |
| 2026-05-06 | CSC3912 | PEN → TFU | May 6, 14:35 UTC | May 7, 10:05 UTC | 19h 30m |
| 2026-05-06 | CSC3912 | PEN → TFU | May 6, 14:00 UTC | May 7, 10:05 UTC | 20h 5m |
| 2026-05-06 | CSC3912 | PEN → TFU | May 6, 00:35 UTC | May 6, 19:15 UTC | 18h 39m |
| 2026-05-05 | CSC6879 | TFU → PEK | May 5, 15:55 UTC | May 5, 16:06 UTC | 10m |
| 2026-05-05 | CSC3960 | HKG → TFU | May 5, 10:45 UTC | May 5, 11:05 UTC | 20m |
| 2026-05-05 | CSC3959 | TFU → HKG | May 5, 08:25 UTC | May 5, 08:50 UTC | 25m |
| 2026-05-04 | CSC3936 | BKK → TFU | May 4, 14:15 UTC | May 4, 14:45 UTC | 30m |
| 2026-05-04 | CSC3935 | TFU → BKK | May 4, 12:10 UTC | May 4, 12:35 UTC | 25m |
| 2026-05-04 | CSC3935 | TFU → BKK | May 4, 08:30 UTC | May 4, 09:55 UTC | 1h 25m |
| 2026-05-03 | CSC3935 | TFU → BKK | May 3, 12:45 UTC | May 4, 09:55 UTC | 21h 10m |
| 2026-05-03 | CSC3935 | TFU → BKK | May 3, 10:35 UTC | May 4, 09:55 UTC | 23h 20m |
| 2026-05-03 | CSC3931 | TFU → HKT | May 3, 09:55 UTC | May 4, 08:30 UTC | 22h 35m |
| 2026-05-02 | CSC3932 | HKT → TFU | May 2, 12:45 UTC | May 3, 10:45 UTC | 21h 59m |
| 2026-05-02 | CSC3932 | HKT → TFU | May 2, 10:35 UTC | May 3, 10:30 UTC | 23h 54m |
| 2026-05-02 | CSC3931 | TFU → HKT | May 2, 09:45 UTC | May 2, 13:35 UTC | 3h 50m |
| 2026-04-30 | CSC3912 | PEN → TFU | Apr 30, 14:45 UTC | Apr 30, 19:15 UTC | 4h 30m |
| 2026-04-29 | CSC3932 | HKT → TFU | Apr 29, 04:15 UTC | Apr 29, 13:45 UTC | 9h 31m |
| 2026-04-26 | CSC8832 | PEK → CKG | Apr 26, 11:05 UTC | Apr 26, 11:15 UTC | 10m |
| 2026-04-26 | CSC8831 | CKG → PEK | Apr 26, 09:05 UTC | Apr 26, 09:15 UTC | 10m |
| 2026-04-26 | CSC8830 | PEK → CKG | Apr 26, 03:05 UTC | Apr 26, 03:30 UTC | 25m |
| 2026-04-25 | CSC8832 | PEK → CKG | Apr 25, 11:05 UTC | Apr 25, 11:20 UTC | 15m |
| 2026-04-25 | CSC8831 | CKG → PEK | Apr 25, 09:20 UTC | Apr 25, 09:30 UTC | 10m |
| 2026-04-21 | CSC3931 | TFU → HKT | Apr 21, 08:55 UTC | Apr 21, 14:05 UTC | 5h 10m |
| 2026-04-19 | CSC3932 | HKT → TFU | Apr 19, 09:15 UTC | Apr 19, 14:05 UTC | 4h 50m |
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 B-8601 page for operator, model, and routing details .