sensors Mode-S transponder
781C8B
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-326K · AIRBUS A-320neo
- Hex
- 781C8B
- Octal
- 36016213
- Decimal
- 7,871,627
- Country
- CN
- Tail
- B-326K
- Type
- A20N
- Flights observed
- 40
- Distinct callsigns
- 18
- Country
- CN
- Last broadcast
- 19h ago
Last known position
Country allocation
The ICAO 24-bit address 781C8B 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSC3774 | Sichuan Airlines | 8 | 2026-05-19 |
| CSC3773 | Sichuan Airlines | 8 | 2026-05-19 |
| CSC6757 | - | 3 | 2026-05-08 |
| CSC8786 | Sichuan Airlines | 2 | 2026-05-28 |
| CSC8784 | Sichuan Airlines | 2 | 2026-05-25 |
| CSC8783 | Sichuan Airlines | 2 | 2026-05-25 |
| CSC8004 | - | 2 | 2026-05-08 |
| CSC8003 | - | 2 | 2026-04-26 |
| CSC6758 | - | 2 | 2026-04-26 |
| CSC8782 | Sichuan Airlines | 1 | 2026-05-29 |
| CSC8781 | Sichuan Airlines | 1 | 2026-05-29 |
| CSC8282 | Sichuan Airlines | 1 | 2026-05-02 |
| CSC8281 | Sichuan Airlines | 1 | 2026-05-02 |
| CSC8088 | Sichuan Airlines | 1 | 2026-05-29 |
| CSC8048 | Sichuan Airlines | 1 | 2026-05-22 |
| CSC8005 | - | 1 | 2026-05-25 |
| CSC3772 | Sichuan Airlines | 1 | 2026-04-16 |
| CSC3771 | Sichuan Airlines | 1 | 2026-04-16 |
Recent flights last 40
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CSC8088 | HGH → CKG | May 29, 10:35 UTC | May 29, 10:55 UTC | 20m |
| 2026-05-29 | CSC8782 | SZX → CKG | May 29, 02:40 UTC | May 29, 02:55 UTC | 15m |
| 2026-05-29 | CSC8781 | CKG → SZX | May 29, 01:05 UTC | May 29, 01:15 UTC | 10m |
| 2026-05-28 | CSC8786 | SZX → CKG | May 28, 12:15 UTC | May 28, 12:35 UTC | 20m |
| 2026-05-25 | CSC8005 | - | May 25, 13:55 UTC | May 25, 15:50 UTC | 1h 55m |
| 2026-05-25 | CSC8784 | SZX → CKG | May 25, 08:40 UTC | May 25, 08:55 UTC | 15m |
| 2026-05-25 | CSC8783 | CKG → SZX | May 25, 07:10 UTC | May 25, 07:20 UTC | 10m |
| 2026-05-22 | CSC8048 | ZUH → CKG | May 22, 02:05 UTC | May 22, 02:25 UTC | 20m |
| 2026-05-21 | CSC8784 | SZX → CKG | May 21, 13:05 UTC | May 21, 13:20 UTC | 15m |
| 2026-05-21 | CSC8783 | CKG → SZX | May 21, 09:50 UTC | May 21, 10:05 UTC | 15m |
| 2026-05-19 | CSC3774 | KUL → CKG | May 19, 17:55 UTC | May 19, 18:45 UTC | 50m |
| 2026-05-19 | CSC3774 | KUL → CKG | May 19, 16:50 UTC | May 19, 17:00 UTC | 10m |
| 2026-05-19 | CSC3773 | CKG → KUL | May 19, 15:15 UTC | May 19, 15:30 UTC | 15m |
| 2026-05-19 | CSC3773 | CKG → KUL | May 19, 13:00 UTC | May 19, 14:15 UTC | 1h 15m |
| 2026-05-08 | CSC8004 | - | May 8, 03:35 UTC | May 8, 03:49 UTC | 15m |
| 2026-05-08 | CSC6757 | - | May 8, 01:29 UTC | May 8, 01:49 UTC | 20m |
| 2026-05-02 | CSC8282 | PEK → KMG | May 2, 14:35 UTC | May 2, 15:05 UTC | 30m |
| 2026-05-02 | CSC8281 | KMG → PEK | May 2, 12:50 UTC | May 2, 13:05 UTC | 15m |
| 2026-04-27 | CSC6757 | - | Apr 27, 01:45 UTC | Apr 27, 04:15 UTC | 2h 30m |
| 2026-04-26 | CSC6758 | - | Apr 26, 04:00 UTC | Apr 27, 01:50 UTC | 21h 50m |
| 2026-04-26 | CSC8003 | - | Apr 26, 02:05 UTC | Apr 26, 04:10 UTC | 2h 5m |
| 2026-04-24 | CSC8786 | SZX → CKG | Apr 24, 15:50 UTC | Apr 24, 16:00 UTC | 10m |
| 2026-04-19 | CSC8004 | - | Apr 19, 04:10 UTC | Apr 19, 04:30 UTC | 20m |
| 2026-04-19 | CSC6757 | - | Apr 19, 01:45 UTC | Apr 19, 02:00 UTC | 15m |
| 2026-04-18 | CSC6758 | - | Apr 18, 03:45 UTC | Apr 19, 02:00 UTC | 22h 15m |
| 2026-04-18 | CSC8003 | - | Apr 18, 01:50 UTC | Apr 18, 02:05 UTC | 15m |
| 2026-04-16 | CSC3772 | BKK → CKG | Apr 16, 13:15 UTC | Apr 16, 13:40 UTC | 25m |
| 2026-04-16 | CSC3771 | CKG → BKK | Apr 16, 11:09 UTC | Apr 16, 11:39 UTC | 30m |
| 2026-04-15 | CSC3774 | KUL → CKG | Apr 15, 18:00 UTC | Apr 15, 18:45 UTC | 45m |
| 2026-04-15 | CSC3773 | CKG → KUL | Apr 15, 15:05 UTC | Apr 15, 15:15 UTC | 10m |
| 2026-04-15 | CSC3773 | CKG → KUL | Apr 15, 13:15 UTC | Apr 15, 14:05 UTC | 50m |
| 2026-04-14 | CSC3774 | KUL → CKG | Apr 14, 18:00 UTC | Apr 14, 18:45 UTC | 45m |
| 2026-04-14 | CSC3774 | KUL → CKG | Apr 14, 16:55 UTC | Apr 14, 17:05 UTC | 10m |
| 2026-04-14 | CSC3773 | CKG → KUL | Apr 14, 15:15 UTC | Apr 14, 15:35 UTC | 20m |
| 2026-04-14 | CSC3773 | CKG → KUL | Apr 14, 13:45 UTC | Apr 14, 14:10 UTC | 25m |
| 2026-04-13 | CSC3774 | KUL → CKG | Apr 13, 18:15 UTC | Apr 13, 18:35 UTC | 20m |
| 2026-04-13 | CSC3774 | KUL → CKG | Apr 13, 16:55 UTC | Apr 13, 17:05 UTC | 10m |
| 2026-04-13 | CSC3773 | CKG → KUL | Apr 13, 15:00 UTC | Apr 13, 15:20 UTC | 20m |
| 2026-04-13 | CSC3773 | CKG → KUL | Apr 13, 13:25 UTC | Apr 13, 13:50 UTC | 25m |
| 2026-04-12 | CSC3774 | KUL → CKG | Apr 12, 18:30 UTC | Apr 12, 18:55 UTC | 25m |
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-326K page for operator, model, and routing details .