sensors Mode-S transponder
781D43
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-328L · AIRBUS A-320neo
- Hex
- 781D43
- Octal
- 36016503
- Decimal
- 7,871,811
- Country
- CN
- Tail
- B-328L
- Type
- A20N
- Flights observed
- 29
- Distinct callsigns
- 12
- Country
- CN
- Last broadcast
- 14d ago
Last known position
Country allocation
The ICAO 24-bit address 781D43 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 |
|---|---|---|---|
| CSC3773 | Sichuan Airlines | 8 | 2026-04-22 |
| CSC3774 | Sichuan Airlines | 6 | 2026-04-22 |
| CSC8782 | Sichuan Airlines | 3 | 2026-05-09 |
| CSC8004 | - | 2 | 2026-05-20 |
| CSC3938 | Sichuan Airlines | 2 | 2026-05-02 |
| CSC3937 | Sichuan Airlines | 2 | 2026-05-02 |
| CSC8784 | Sichuan Airlines | 1 | 2026-04-28 |
| CSC8781 | Sichuan Airlines | 1 | 2026-05-09 |
| CSC8037 | Sichuan Airlines | 1 | 2026-05-03 |
| CSC8006 | - | 1 | 2026-05-12 |
| CSC6757 | - | 1 | 2026-05-02 |
| CSC3772 | Sichuan Airlines | 1 | 2026-04-23 |
Recent flights last 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-20 | CSC8004 | - | May 20, 03:35 UTC | May 20, 03:50 UTC | 15m |
| 2026-05-12 | CSC8006 | - | May 12, 08:50 UTC | May 12, 10:55 UTC | 2h 5m |
| 2026-05-09 | CSC8782 | SZX → CKG | May 9, 02:35 UTC | May 9, 02:50 UTC | 15m |
| 2026-05-09 | CSC8781 | CKG → SZX | May 9, 00:45 UTC | May 9, 00:55 UTC | 10m |
| 2026-05-08 | CSC8782 | SZX → CKG | May 8, 02:49 UTC | May 8, 02:59 UTC | 10m |
| 2026-05-03 | CSC8037 | CKG → SHE | May 3, 13:15 UTC | May 4, 01:20 UTC | 12h 5m |
| 2026-05-03 | CSC8004 | - | May 3, 03:40 UTC | May 4, 01:20 UTC | 21h 40m |
| 2026-05-02 | CSC6757 | - | May 2, 19:10 UTC | May 3, 13:15 UTC | 18h 4m |
| 2026-05-02 | CSC3938 | BKK → TFU | May 2, 18:15 UTC | May 3, 13:15 UTC | 18h 59m |
| 2026-05-02 | CSC3937 | TFU → BKK | May 2, 16:30 UTC | May 2, 17:00 UTC | 30m |
| 2026-05-01 | CSC3938 | BKK → TFU | May 1, 18:35 UTC | May 1, 19:00 UTC | 25m |
| 2026-05-01 | CSC3937 | TFU → BKK | May 1, 01:30 UTC | May 1, 16:40 UTC | 15h 10m |
| 2026-04-28 | CSC8784 | SZX → CKG | Apr 28, 09:50 UTC | Apr 28, 10:00 UTC | 10m |
| 2026-04-23 | CSC3772 | BKK → CKG | Apr 23, 13:10 UTC | Apr 23, 14:05 UTC | 55m |
| 2026-04-22 | CSC3774 | KUL → CKG | Apr 22, 16:50 UTC | Apr 23, 11:45 UTC | 18h 55m |
| 2026-04-22 | CSC3773 | CKG → KUL | Apr 22, 14:45 UTC | Apr 22, 15:00 UTC | 15m |
| 2026-04-21 | CSC3773 | CKG → KUL | Apr 21, 18:50 UTC | Apr 22, 13:40 UTC | 18h 50m |
| 2026-04-21 | CSC3774 | KUL → CKG | Apr 21, 18:05 UTC | Apr 22, 13:40 UTC | 19h 35m |
| 2026-04-21 | CSC3774 | KUL → CKG | Apr 21, 17:01 UTC | Apr 21, 17:15 UTC | 15m |
| 2026-04-21 | CSC3773 | CKG → KUL | Apr 21, 12:50 UTC | Apr 21, 15:10 UTC | 2h 20m |
| 2026-04-20 | CSC3773 | CKG → KUL | Apr 20, 18:50 UTC | Apr 21, 15:10 UTC | 20h 20m |
| 2026-04-20 | CSC3774 | KUL → CKG | Apr 20, 17:05 UTC | Apr 21, 15:10 UTC | 22h 5m |
| 2026-04-20 | CSC3773 | CKG → KUL | Apr 20, 14:45 UTC | Apr 20, 15:05 UTC | 20m |
| 2026-04-19 | CSC3773 | CKG → KUL | Apr 19, 18:50 UTC | Apr 20, 13:50 UTC | 19h 0m |
| 2026-04-19 | CSC3774 | KUL → CKG | Apr 19, 18:00 UTC | Apr 20, 13:50 UTC | 19h 50m |
| 2026-04-19 | CSC3774 | KUL → CKG | Apr 19, 16:55 UTC | Apr 19, 17:05 UTC | 10m |
| 2026-04-19 | CSC3773 | CKG → KUL | Apr 19, 14:50 UTC | Apr 19, 15:05 UTC | 15m |
| 2026-04-19 | CSC3773 | CKG → KUL | Apr 19, 12:50 UTC | Apr 19, 13:50 UTC | 1h 0m |
| 2026-04-17 | CSC8782 | SZX → CKG | Apr 17, 02:35 UTC | Apr 17, 02:50 UTC | 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 B-328L page for operator, model, and routing details .