sensors Mode-S transponder
780C2B
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1823 · AIRBUS A-321
- Hex
- 780C2B
- Octal
- 36006053
- Decimal
- 7,867,435
- Country
- CN
- Tail
- B-1823
- Type
- A321
- Flights observed
- 41
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 24d ago
Last known position
Country allocation
The ICAO 24-bit address 780C2B 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 | Sichuan Airlines | 7 | 2026-07-22 |
| CSC8880 | Sichuan Airlines | 4 | 2026-07-25 |
| CSC6880 | Sichuan Airlines | 3 | 2026-07-18 |
| CSC3903 | Sichuan Airlines | 3 | 2026-06-24 |
| CSC8702 | Sichuan Airlines | 2 | 2026-06-06 |
| CSC6796 | - | 2 | 2026-07-11 |
| CSC3973 | - | 2 | 2026-06-20 |
| CSC3362 | - | 2 | 2026-07-10 |
| CSC8894 | Sichuan Airlines | 1 | 2026-05-26 |
| CSC8879 | Sichuan Airlines | 1 | 2026-07-25 |
| CSC8759 | Sichuan Airlines | 1 | 2026-06-10 |
| CSC8704 | Sichuan Airlines | 1 | 2026-07-26 |
| CSC8461 | Sichuan Airlines | 1 | 2026-06-08 |
| CSC6879 | Sichuan Airlines | 1 | 2026-07-24 |
| CSC6729 | Sichuan Airlines | 1 | 2026-07-18 |
| CSC6461 | - | 1 | 2026-06-29 |
| CSC3974 | Sichuan Airlines | 1 | 2026-05-21 |
| CSC3938 | Sichuan Airlines | 1 | 2026-05-15 |
| CSC3937 | Sichuan Airlines | 1 | 2026-05-15 |
| CSC3936 | Sichuan Airlines | 1 | 2026-05-17 |
Recent flights last 41
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CSC8704 | SZX → CTU | Jul 26, 10:10 UTC | Jul 26, 10:25 UTC | 15m |
| 2026-07-25 | CSC8880 | PEK → CTU | Jul 25, 22:40 UTC | Jul 25, 23:00 UTC | 20m |
| 2026-07-25 | CSC8879 | CTU → PEK | Jul 25, 16:00 UTC | Jul 25, 16:20 UTC | 20m |
| 2026-07-24 | CSC8880 | PEK → CTU | Jul 24, 22:40 UTC | Jul 25, 09:10 UTC | 10h 30m |
| 2026-07-24 | CSC6879 | TFU → PEK | Jul 24, 14:30 UTC | Jul 24, 15:05 UTC | 35m |
| 2026-07-23 | - | - | Jul 23, 08:50 UTC | Jul 23, 09:05 UTC | 15m |
| 2026-07-22 | CSC3244 | SHE → TYN | Jul 22, 12:15 UTC | Jul 22, 12:40 UTC | 25m |
| 2026-07-20 | CSC3244 | SHE → TYN | Jul 20, 12:30 UTC | Jul 20, 12:40 UTC | 10m |
| 2026-07-20 | CSC3243 | TYN → SHE | Jul 20, 09:20 UTC | Jul 20, 09:40 UTC | 20m |
| 2026-07-19 | CSC3244 | SHE → TYN | Jul 19, 09:10 UTC | Jul 19, 09:25 UTC | 15m |
| 2026-07-18 | CSC6729 | TFU → SYX | Jul 18, 14:00 UTC | Jul 19, 06:20 UTC | 16h 20m |
| 2026-07-18 | CSC6880 | PEK → TFU | Jul 18, 00:35 UTC | Jul 18, 14:25 UTC | 13h 51m |
| 2026-07-16 | CSC8880 | - | Jul 16, 22:45 UTC | Jul 17, 09:15 UTC | 10h 30m |
| 2026-07-15 | CSC8880 | - | Jul 15, 22:35 UTC | Jul 16, 06:30 UTC | 7h 55m |
| 2026-07-11 | CSC6796 | - | Jul 11, 23:25 UTC | Jul 11, 23:40 UTC | 15m |
| 2026-07-10 | CSC3362 | - | Jul 10, 13:20 UTC | Jul 10, 17:55 UTC | 4h 35m |
| 2026-07-09 | CSC3362 | - | Jul 9, 15:40 UTC | Jul 9, 16:05 UTC | 25m |
| 2026-06-29 | CSC6461 | - | Jun 29, 07:59 UTC | Jun 29, 08:09 UTC | 10m |
| 2026-06-24 | CSC3903 | TFU → SGN | Jun 24, 13:00 UTC | Jun 25, 02:59 UTC | 14h 0m |
| 2026-06-24 | CSC3903 | TFU → SGN | Jun 24, 00:34 UTC | Jun 24, 13:30 UTC | 12h 55m |
| 2026-06-23 | CSC6880 | - | Jun 23, 00:35 UTC | Jun 23, 00:54 UTC | 20m |
| 2026-06-22 | CSC6880 | - | Jun 22, 00:40 UTC | Jun 22, 00:55 UTC | 15m |
| 2026-06-20 | CSC3903 | TFU → SGN | Jun 20, 13:09 UTC | Jun 21, 03:00 UTC | 13h 50m |
| 2026-06-20 | CSC3973 | - | Jun 20, 03:49 UTC | Jun 20, 04:09 UTC | 20m |
| 2026-06-15 | CSC3244 | SHE → TYN | Jun 15, 16:09 UTC | Jun 15, 16:35 UTC | 25m |
| 2026-06-14 | CSC3244 | SHE → TYN | Jun 14, 01:55 UTC | Jun 14, 14:05 UTC | 12h 10m |
| 2026-06-12 | CSC3244 | SHE → TYN | Jun 12, 13:50 UTC | Jun 12, 14:05 UTC | 15m |
| 2026-06-12 | CSC3244 | SHE → TYN | Jun 12, 09:15 UTC | Jun 12, 09:35 UTC | 20m |
| 2026-06-10 | CSC8759 | CTU → SYX | Jun 10, 11:05 UTC | Jun 10, 11:35 UTC | 30m |
| 2026-06-08 | CSC8461 | CTU → SHE | Jun 8, 01:00 UTC | Jun 8, 01:20 UTC | 20m |
| 2026-06-06 | CSC8702 | SZX → CTU | Jun 6, 04:40 UTC | Jun 6, 04:50 UTC | 10m |
| 2026-06-03 | CSC8702 | SZX → CTU | Jun 3, 02:25 UTC | Jun 3, 02:40 UTC | 15m |
| 2026-05-26 | CSC8894 | PEK → CTU | May 26, 03:45 UTC | May 26, 04:04 UTC | 20m |
| 2026-05-21 | CSC3974 | ICN → TFU | May 21, 06:20 UTC | May 21, 06:45 UTC | 25m |
| 2026-05-21 | CSC3973 | TFU → ICN | May 21, 03:55 UTC | May 21, 04:15 UTC | 20m |
| 2026-05-20 | CSC3931 | TFU → HKT | May 20, 09:30 UTC | May 21, 03:05 UTC | 17h 35m |
| 2026-05-17 | CSC3936 | BKK → TFU | May 17, 11:20 UTC | May 17, 11:45 UTC | 25m |
| 2026-05-17 | CSC3935 | TFU → BKK | May 17, 08:35 UTC | May 17, 09:35 UTC | 1h 0m |
| 2026-05-15 | CSC3938 | BKK → TFU | May 15, 18:20 UTC | May 15, 19:20 UTC | 1h 0m |
| 2026-05-15 | CSC3937 | TFU → BKK | May 15, 15:50 UTC | May 15, 16:50 UTC | 1h 0m |
| 2026-05-14 | CSC6796 | SZX → TFU | May 14, 23:20 UTC | May 14, 23:40 UTC | 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-1823 page for operator, model, and routing details .