sensors Mode-S transponder
781DF6
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-32AG · AIRBUS A-350-900
- Hex
- 781DF6
- Octal
- 36016766
- Decimal
- 7,871,990
- Country
- CN
- Tail
- B-32AG
- Type
- A359
- Flights observed
- 80
- Distinct callsigns
- 15
- Country
- CN
- Last broadcast
- 18h ago
Last known position
Country allocation
The ICAO 24-bit address 781DF6 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSC3887 | Sichuan Airlines | 15 | 2026-05-25 |
| CSC3838 | Sichuan Airlines | 12 | 2026-05-23 |
| CSC3837 | Sichuan Airlines | 9 | 2026-05-22 |
| CSC3815 | Sichuan Airlines | 9 | 2026-05-27 |
| CSC3804 | Sichuan Airlines | 6 | 2026-05-29 |
| CSC3896 | Sichuan Airlines | 5 | 2026-05-10 |
| CSC3860 | Sichuan Airlines | 5 | 2026-05-19 |
| CSC3803 | Sichuan Airlines | 5 | 2026-05-28 |
| CSC3859 | Sichuan Airlines | 4 | 2026-05-19 |
| CSC3895 | Sichuan Airlines | 3 | 2026-05-10 |
| CSC8894 | Sichuan Airlines | 2 | 2026-04-21 |
| CSC8893 | Sichuan Airlines | 2 | 2026-04-21 |
| CSC6872 | Sichuan Airlines | 1 | 2026-04-20 |
| CSC3816 | Sichuan Airlines | 1 | 2026-04-27 |
| 3U3838 | Sichuan Airlines | 1 | 2026-05-02 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CSC3804 | MAD → TFU | May 29, 10:00 UTC | May 29, 14:50 UTC | 4h 50m |
| 2026-05-28 | CSC3803 | TFU → MAD | May 28, 21:00 UTC | May 29, 00:05 UTC | 3h 5m |
| 2026-05-27 | CSC3803 | TFU → MAD | May 27, 23:35 UTC | May 28, 23:30 UTC | 23h 55m |
| 2026-05-27 | CSC3815 | TFU → LED | May 27, 13:05 UTC | May 28, 00:00 UTC | 10h 55m |
| 2026-05-25 | CSC3887 | TFU → SVO | May 25, 12:50 UTC | May 25, 21:24 UTC | 8h 34m |
| 2026-05-24 | CSC3887 | TFU → SVO | May 24, 17:50 UTC | May 25, 15:45 UTC | 21h 55m |
| 2026-05-24 | CSC3815 | TFU → LED | May 24, 14:50 UTC | May 25, 13:15 UTC | 22h 25m |
| 2026-05-23 | CSC3838 | LAX → TFU | May 23, 17:55 UTC | May 24, 15:25 UTC | 21h 30m |
| 2026-05-23 | CSC3838 | LAX → TFU | May 23, 16:45 UTC | May 24, 15:25 UTC | 22h 40m |
| 2026-05-23 | CSC3838 | LAX → TFU | May 23, 06:25 UTC | May 23, 18:45 UTC | 12h 21m |
| 2026-05-22 | CSC3837 | TFU → LAX | May 22, 17:15 UTC | May 23, 03:00 UTC | 9h 45m |
| 2026-05-21 | CSC3837 | TFU → LAX | May 21, 23:45 UTC | May 22, 18:40 UTC | 18h 55m |
| 2026-05-21 | CSC3837 | TFU → LAX | May 21, 22:05 UTC | May 22, 18:40 UTC | 20h 35m |
| 2026-05-21 | CSC3815 | TFU → LED | May 21, 13:01 UTC | May 22, 00:10 UTC | 11h 10m |
| 2026-05-20 | CSC3815 | TFU → LED | May 20, 23:45 UTC | May 21, 22:05 UTC | 22h 20m |
| 2026-05-20 | CSC3815 | TFU → LED | May 20, 15:50 UTC | May 21, 13:30 UTC | 21h 40m |
| 2026-05-20 | CSC3815 | TFU → LED | May 20, 12:55 UTC | May 21, 00:05 UTC | 11h 10m |
| 2026-05-19 | CSC3860 | YVR → TFU | May 19, 17:40 UTC | May 20, 15:55 UTC | 22h 16m |
| 2026-05-19 | CSC3860 | YVR → TFU | May 19, 16:50 UTC | May 20, 13:20 UTC | 20h 31m |
| 2026-05-19 | CSC3860 | YVR → TFU | May 19, 07:45 UTC | May 19, 19:00 UTC | 11h 15m |
| 2026-05-19 | CSC3859 | TFU → YVR | May 19, 00:55 UTC | May 19, 04:25 UTC | 3h 30m |
| 2026-05-17 | CSC3887 | TFU → SVO | May 17, 13:05 UTC | May 17, 21:01 UTC | 7h 55m |
| 2026-05-16 | CSC3838 | LAX → TFU | May 16, 17:35 UTC | May 17, 14:55 UTC | 21h 20m |
| 2026-05-16 | CSC3838 | LAX → TFU | May 16, 17:20 UTC | May 17, 14:55 UTC | 21h 35m |
| 2026-05-16 | CSC3838 | LAX → TFU | May 16, 06:35 UTC | May 16, 19:05 UTC | 12h 30m |
| 2026-05-15 | CSC3837 | TFU → LAX | May 15, 17:25 UTC | May 16, 03:30 UTC | 10h 5m |
| 2026-05-14 | CSC3837 | TFU → LAX | May 14, 22:20 UTC | May 15, 18:55 UTC | 20h 34m |
| 2026-05-14 | CSC3887 | TFU → SVO | May 14, 12:35 UTC | May 14, 22:20 UTC | 9h 45m |
| 2026-05-13 | CSC3887 | TFU → SVO | May 13, 15:35 UTC | May 14, 15:30 UTC | 23h 55m |
| 2026-05-13 | CSC3887 | TFU → SVO | May 13, 14:25 UTC | May 14, 13:05 UTC | 22h 40m |
| 2026-05-13 | CSC3887 | TFU → SVO | May 13, 12:40 UTC | May 13, 15:55 UTC | 3h 15m |
| 2026-05-12 | CSC3887 | TFU → SVO | May 12, 20:50 UTC | May 13, 15:55 UTC | 19h 5m |
| 2026-05-12 | CSC3887 | TFU → SVO | May 12, 14:20 UTC | May 13, 13:10 UTC | 22h 50m |
| 2026-05-12 | CSC3887 | TFU → SVO | May 12, 12:35 UTC | May 12, 21:01 UTC | 8h 25m |
| 2026-05-11 | CSC3887 | TFU → SVO | May 11, 20:40 UTC | May 12, 14:30 UTC | 17h 50m |
| 2026-05-11 | CSC3887 | TFU → SVO | May 11, 15:35 UTC | May 12, 14:30 UTC | 22h 56m |
| 2026-05-11 | CSC3815 | TFU → LED | May 11, 12:50 UTC | May 11, 20:40 UTC | 7h 50m |
| 2026-05-10 | CSC3896 | FCO → TFU | May 10, 14:09 UTC | May 11, 13:25 UTC | 23h 15m |
| 2026-05-10 | CSC3896 | FCO → TFU | May 10, 11:30 UTC | May 10, 15:29 UTC | 4h 0m |
| 2026-05-10 | CSC3895 | TFU → FCO | May 10, 00:24 UTC | May 10, 05:00 UTC | 4h 35m |
| 2026-05-08 | CSC3860 | YVR → TFU | May 8, 07:50 UTC | May 8, 18:55 UTC | 11h 5m |
| 2026-05-07 | CSC3859 | TFU → YVR | May 7, 19:55 UTC | May 8, 05:00 UTC | 9h 5m |
| 2026-05-06 | CSC3859 | TFU → YVR | May 6, 23:55 UTC | May 7, 21:10 UTC | 21h 15m |
| 2026-05-06 | CSC3815 | TFU → LED | May 6, 13:15 UTC | May 7, 00:20 UTC | 11h 4m |
| 2026-05-04 | CSC3887 | TFU → SVO | May 4, 12:55 UTC | May 4, 16:10 UTC | 3h 15m |
| 2026-05-03 | CSC3887 | TFU → SVO | May 3, 14:25 UTC | May 4, 13:25 UTC | 23h 0m |
| 2026-05-02 | CSC3887 | TFU → SVO | May 2, 19:35 UTC | May 3, 14:35 UTC | 18h 59m |
| 2026-05-02 | CSC3838 | LAX → TFU | May 2, 17:35 UTC | May 3, 14:35 UTC | 20h 59m |
| 2026-05-02 | 3U3838 | LAX → TFU | May 2, 06:30 UTC | May 2, 19:35 UTC | 13h 5m |
| 2026-05-01 | CSC3837 | TFU → LAX | May 1, 17:10 UTC | May 2, 03:30 UTC | 10h 20m |
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-32AG page for operator, model, and routing details .