sensors Mode-S transponder
780DDD
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1663 · AIRBUS A-321
- Hex
- 780DDD
- Octal
- 36006735
- Decimal
- 7,867,869
- Country
- CN
- Tail
- B-1663
- Type
- A321
- Flights observed
- 77
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 780DDD 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSC3244 | - | 14 | 2026-07-14 |
| CSC3248 | Sichuan Airlines | 6 | 2026-04-28 |
| CSC3903 | - | 5 | 2026-07-05 |
| CSC6880 | - | 4 | 2026-07-10 |
| CSC3243 | - | 4 | 2026-07-13 |
| CSC6733 | - | 3 | 2026-06-29 |
| CSC6729 | - | 3 | 2026-07-15 |
| CSC3904 | - | 3 | 2026-07-06 |
| CSC3344 | Sichuan Airlines | 3 | 2026-06-12 |
| CSC8894 | Sichuan Airlines | 2 | 2026-06-07 |
| CSC6796 | Sichuan Airlines | 2 | 2026-05-23 |
| CSC3935 | - | 2 | 2026-07-07 |
| CSC3932 | Sichuan Airlines | 2 | 2026-06-04 |
| CSC3912 | Sichuan Airlines | 2 | 2026-05-29 |
| CSC3343 | Sichuan Airlines | 2 | 2026-06-12 |
| CSC3236 | Sichuan Airlines | 2 | 2026-04-27 |
| CSC3235 | Sichuan Airlines | 2 | 2026-04-26 |
| CSC8778 | Sichuan Airlines | 1 | 2026-06-07 |
| CSC8710 | Sichuan Airlines | 1 | 2026-05-15 |
| CSC8709 | - | 1 | 2026-05-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-15 | CSC6729 | - | Jul 15, 06:30 UTC | Jul 15, 13:40 UTC | 7h 10m |
| 2026-07-14 | CSC3244 | - | Jul 14, 15:35 UTC | Jul 15, 13:40 UTC | 22h 4m |
| 2026-07-14 | CSC3244 | - | Jul 14, 11:00 UTC | Jul 14, 11:15 UTC | 15m |
| 2026-07-13 | CSC3244 | - | Jul 13, 09:25 UTC | Jul 13, 09:40 UTC | 15m |
| 2026-07-13 | CSC3243 | - | Jul 13, 06:20 UTC | Jul 13, 06:30 UTC | 10m |
| 2026-07-12 | CSC3244 | - | Jul 12, 09:10 UTC | Jul 12, 09:30 UTC | 20m |
| 2026-07-11 | CSC6729 | - | Jul 11, 14:05 UTC | Jul 12, 06:20 UTC | 16h 15m |
| 2026-07-10 | CSC6880 | - | Jul 10, 00:45 UTC | Jul 10, 01:05 UTC | 20m |
| 2026-07-09 | CSC6880 | - | Jul 9, 00:45 UTC | Jul 9, 01:05 UTC | 20m |
| 2026-07-07 | CSC3936 | - | Jul 7, 11:10 UTC | Jul 7, 12:30 UTC | 1h 20m |
| 2026-07-07 | CSC3935 | - | Jul 7, 02:25 UTC | Jul 7, 09:40 UTC | 7h 15m |
| 2026-07-06 | CSC3935 | - | Jul 6, 14:20 UTC | Jul 7, 09:40 UTC | 19h 20m |
| 2026-07-06 | CSC3904 | - | Jul 6, 09:50 UTC | Jul 7, 09:15 UTC | 23h 25m |
| 2026-07-06 | CSC3904 | - | Jul 6, 07:35 UTC | Jul 7, 02:55 UTC | 19h 20m |
| 2026-07-05 | CSC3903 | - | Jul 5, 15:20 UTC | Jul 6, 14:40 UTC | 23h 20m |
| 2026-07-05 | CSC6729 | - | Jul 5, 15:05 UTC | Jul 6, 10:05 UTC | 19h 0m |
| 2026-07-03 | CSC3903 | - | Jul 3, 16:20 UTC | Jul 4, 03:05 UTC | 10h 45m |
| 2026-07-03 | CSC3904 | - | Jul 3, 02:25 UTC | Jul 3, 16:55 UTC | 14h 30m |
| 2026-07-02 | CSC3903 | - | Jul 2, 14:00 UTC | Jul 3, 03:00 UTC | 13h 0m |
| 2026-07-02 | CSC3903 | - | Jul 2, 00:35 UTC | Jul 2, 14:40 UTC | 14h 5m |
| 2026-06-29 | CSC6733 | - | Jun 29, 00:14 UTC | Jun 29, 07:05 UTC | 6h 50m |
| 2026-06-28 | CSC3244 | - | Jun 28, 14:45 UTC | Jun 28, 15:05 UTC | 20m |
| 2026-06-28 | CSC3244 | - | Jun 28, 10:15 UTC | Jun 28, 10:39 UTC | 25m |
| 2026-06-28 | CSC3243 | - | Jun 28, 02:39 UTC | Jun 28, 07:09 UTC | 4h 30m |
| 2026-06-27 | CSC3244 | - | Jun 27, 11:35 UTC | Jun 27, 11:50 UTC | 15m |
| 2026-06-26 | CSC3244 | - | Jun 26, 13:24 UTC | Jun 27, 08:35 UTC | 19h 10m |
| 2026-06-26 | CSC3244 | - | Jun 26, 09:14 UTC | Jun 26, 09:30 UTC | 15m |
| 2026-06-25 | CSC6727 | TFU → SYX | Jun 25, 14:04 UTC | Jun 25, 14:34 UTC | 30m |
| 2026-06-21 | CSC6880 | - | Jun 21, 00:40 UTC | Jun 21, 00:59 UTC | 20m |
| 2026-06-19 | CSC3903 | TFU → SGN | Jun 19, 12:54 UTC | Jun 20, 02:54 UTC | 14h 0m |
| 2026-06-12 | CSC3344 | WUH → HRB | Jun 12, 12:00 UTC | Jun 13, 01:55 UTC | 13h 55m |
| 2026-06-12 | CSC3343 | HRB → WUH | Jun 12, 01:25 UTC | Jun 12, 12:15 UTC | 10h 50m |
| 2026-06-10 | CSC3343 | HRB → WUH | Jun 10, 01:25 UTC | Jun 10, 12:15 UTC | 10h 50m |
| 2026-06-09 | CSC3344 | WUH → HRB | Jun 9, 12:40 UTC | Jun 10, 01:40 UTC | 13h 0m |
| 2026-06-09 | CSC3344 | WUH → HRB | Jun 9, 01:25 UTC | Jun 9, 13:00 UTC | 11h 35m |
| 2026-06-07 | CSC8778 | HAK → CTU | Jun 7, 13:05 UTC | Jun 7, 13:15 UTC | 10m |
| 2026-06-07 | CSC8894 | PEK → CTU | Jun 7, 04:50 UTC | Jun 7, 10:35 UTC | 5h 45m |
| 2026-06-05 | CSC6788 | ZUH → TFU | Jun 5, 04:55 UTC | Jun 5, 05:05 UTC | 10m |
| 2026-06-04 | CSC3932 | HKT → TFU | Jun 4, 00:35 UTC | Jun 4, 13:55 UTC | 13h 20m |
| 2026-06-03 | CSC6879 | TFU → PEK | Jun 3, 14:15 UTC | Jun 3, 14:40 UTC | 25m |
| 2026-06-02 | CSC3932 | HKT → TFU | Jun 2, 08:55 UTC | Jun 2, 14:10 UTC | 5h 15m |
| 2026-05-29 | CSC3931 | TFU → HKT | May 29, 19:20 UTC | May 30, 14:05 UTC | 18h 45m |
| 2026-05-29 | CSC3912 | PEN → TFU | May 29, 18:05 UTC | May 30, 14:05 UTC | 20h 0m |
| 2026-05-29 | CSC3912 | PEN → TFU | May 29, 13:50 UTC | May 30, 13:15 UTC | 23h 25m |
| 2026-05-28 | CSC6872 | PEK → TFU | May 28, 12:35 UTC | May 28, 12:50 UTC | 15m |
| 2026-05-28 | CSC8894 | PEK → CTU | May 28, 03:50 UTC | May 28, 04:15 UTC | 25m |
| 2026-05-27 | CSC6880 | PEK → TFU | May 27, 00:30 UTC | May 27, 00:49 UTC | 20m |
| 2026-05-23 | CSC6796 | SZX → TFU | May 23, 23:15 UTC | May 23, 23:25 UTC | 10m |
| 2026-05-21 | CSC6796 | SZX → TFU | May 21, 23:10 UTC | May 21, 23:25 UTC | 15m |
| 2026-05-19 | CSC8709 | - | May 19, 13:20 UTC | May 19, 13:30 UTC | 10m |
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-1663 page for operator, model, and routing details .