sensors Mode-S transponder
781B79
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-323L · AIRBUS A-320neo
- Hex
- 781B79
- Octal
- 36015571
- Decimal
- 7,871,353
- Country
- CN
- Tail
- B-323L
- Type
- A20N
- Flights observed
- 37
- Distinct callsigns
- 16
- Country
- CN
- Last broadcast
- 9h ago
Last known position
Country allocation
The ICAO 24-bit address 781B79 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 16 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSC3771 | - | 7 | 2026-06-14 |
| CSC8004 | - | 5 | 2026-06-09 |
| CSC8782 | Sichuan Airlines | 3 | 2026-05-26 |
| CSC8003 | - | 3 | 2026-06-18 |
| CSC3774 | Sichuan Airlines | 3 | 2026-05-31 |
| CSC3773 | Sichuan Airlines | 3 | 2026-05-31 |
| CSC8237 | - | 2 | 2026-07-01 |
| CSC8047 | Sichuan Airlines | 2 | 2026-06-06 |
| CSC3772 | Sichuan Airlines | 2 | 2026-06-14 |
| CSC8784 | - | 1 | 2026-06-17 |
| CSC8165 | Sichuan Airlines | 1 | 2026-06-05 |
| CSC8048 | Sichuan Airlines | 1 | 2026-06-06 |
| CSC8007 | - | 1 | 2026-07-13 |
| CSC8006 | - | 1 | 2026-05-22 |
| CSC6758 | - | 1 | 2026-07-05 |
| CSC3158 | - | 1 | 2026-07-02 |
Recent flights last 37
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CSC8007 | - | Jul 13, 10:05 UTC | Jul 13, 13:45 UTC | 3h 40m |
| 2026-07-05 | CSC6758 | - | Jul 5, 03:40 UTC | Jul 5, 03:50 UTC | 10m |
| 2026-07-02 | CSC3158 | - | Jul 2, 13:10 UTC | Jul 2, 13:50 UTC | 40m |
| 2026-07-01 | CSC8237 | - | Jul 1, 04:15 UTC | Jul 1, 04:30 UTC | 15m |
| 2026-06-26 | CSC8237 | - | Jun 26, 04:34 UTC | Jun 26, 04:55 UTC | 20m |
| 2026-06-18 | CSC8003 | - | Jun 18, 01:40 UTC | Jun 18, 04:55 UTC | 3h 15m |
| 2026-06-17 | CSC8784 | - | Jun 17, 11:05 UTC | Jun 17, 11:20 UTC | 15m |
| 2026-06-14 | CSC3772 | BKK → CKG | Jun 14, 13:45 UTC | Jun 14, 14:15 UTC | 30m |
| 2026-06-14 | CSC3771 | - | Jun 14, 10:55 UTC | Jun 14, 11:25 UTC | 30m |
| 2026-06-13 | CSC3771 | - | Jun 13, 13:05 UTC | Jun 14, 11:25 UTC | 22h 20m |
| 2026-06-13 | CSC3771 | - | Jun 13, 01:30 UTC | Jun 13, 11:45 UTC | 10h 14m |
| 2026-06-12 | CSC3771 | - | Jun 12, 14:35 UTC | Jun 13, 11:45 UTC | 21h 9m |
| 2026-06-12 | CSC3772 | BKK → CKG | Jun 12, 13:35 UTC | Jun 13, 11:45 UTC | 22h 9m |
| 2026-06-12 | CSC3771 | - | Jun 12, 01:05 UTC | Jun 12, 11:30 UTC | 10h 25m |
| 2026-06-11 | CSC3771 | - | Jun 11, 13:05 UTC | Jun 12, 11:30 UTC | 22h 25m |
| 2026-06-11 | CSC3771 | CKG → BKK | Jun 11, 01:00 UTC | Jun 11, 11:30 UTC | 10h 30m |
| 2026-06-09 | CSC8004 | - | Jun 9, 01:30 UTC | Jun 9, 13:15 UTC | 11h 45m |
| 2026-06-08 | CSC8004 | - | Jun 8, 13:25 UTC | Jun 9, 03:40 UTC | 14h 15m |
| 2026-06-08 | CSC8004 | - | Jun 8, 03:20 UTC | Jun 9, 01:35 UTC | 22h 15m |
| 2026-06-08 | CSC8003 | - | Jun 8, 01:20 UTC | Jun 8, 13:30 UTC | 12h 10m |
| 2026-06-06 | CSC8048 | ZUH → CKG | Jun 6, 06:10 UTC | Jun 6, 06:25 UTC | 15m |
| 2026-06-06 | CSC8047 | CKG → ZUH | Jun 6, 04:45 UTC | Jun 6, 04:55 UTC | 10m |
| 2026-06-06 | CSC8047 | CKG → ZUH | Jun 6, 00:45 UTC | Jun 6, 01:05 UTC | 20m |
| 2026-06-05 | CSC8165 | CKG → HRB | Jun 5, 02:00 UTC | Jun 5, 02:15 UTC | 15m |
| 2026-06-02 | CSC8004 | - | Jun 2, 03:40 UTC | Jun 2, 03:55 UTC | 15m |
| 2026-06-02 | CSC8003 | - | Jun 2, 01:50 UTC | Jun 2, 02:00 UTC | 10m |
| 2026-05-31 | CSC3774 | KUL → CKG | May 31, 17:00 UTC | May 31, 19:20 UTC | 2h 20m |
| 2026-05-31 | CSC3773 | CKG → KUL | May 31, 13:05 UTC | May 31, 15:30 UTC | 2h 25m |
| 2026-05-30 | CSC8004 | - | May 30, 03:40 UTC | May 30, 13:25 UTC | 9h 45m |
| 2026-05-29 | CSC3774 | KUL → CKG | May 29, 17:55 UTC | May 30, 02:06 UTC | 8h 11m |
| 2026-05-29 | CSC3774 | KUL → CKG | May 29, 16:55 UTC | May 29, 17:05 UTC | 10m |
| 2026-05-29 | CSC3773 | CKG → KUL | May 29, 15:00 UTC | May 29, 15:25 UTC | 25m |
| 2026-05-29 | CSC3773 | CKG → KUL | May 29, 01:55 UTC | May 29, 13:45 UTC | 11h 50m |
| 2026-05-26 | CSC8782 | SZX → CKG | May 26, 02:29 UTC | May 26, 02:44 UTC | 15m |
| 2026-05-25 | CSC8782 | SZX → CKG | May 25, 02:40 UTC | May 25, 02:50 UTC | 10m |
| 2026-05-22 | CSC8006 | - | May 22, 15:15 UTC | May 22, 17:05 UTC | 1h 50m |
| 2026-05-22 | CSC8782 | SZX → CKG | May 22, 02:25 UTC | May 22, 02:40 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-323L page for operator, model, and routing details .