sensors Mode-S transponder
780510
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6551 · AIRBUS A-321
- Hex
- 780510
- Octal
- 36002420
- Decimal
- 7,865,616
- Country
- CN
- Tail
- B-6551
- Type
- A321
- Flights observed
- 29
- Distinct callsigns
- 18
- Country
- CN
- Last broadcast
- Jul 24, 10:50 UTC
Last known position
Country allocation
The ICAO 24-bit address 780510 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 |
|---|---|---|---|
| CSC8710 | - | 6 | 2026-07-21 |
| CSC6796 | - | 4 | 2026-07-17 |
| CSC8709 | Sichuan Airlines | 2 | 2026-07-20 |
| CSC8708 | - | 2 | 2026-07-01 |
| CSC8461 | Sichuan Airlines | 2 | 2026-07-23 |
| CSC8880 | - | 1 | 2026-07-14 |
| CSC8863 | Sichuan Airlines | 1 | 2026-07-24 |
| CSC8760 | Sichuan Airlines | 1 | 2026-06-15 |
| CSC8759 | Sichuan Airlines | 1 | 2026-06-15 |
| CSC8707 | Sichuan Airlines | 1 | 2026-04-14 |
| CSC8704 | - | 1 | 2026-07-17 |
| CSC8703 | Sichuan Airlines | 1 | 2026-04-29 |
| CSC6880 | Sichuan Airlines | 1 | 2026-05-03 |
| CSC6795 | - | 1 | 2026-07-18 |
| CSC6461 | Sichuan Airlines | 1 | 2026-05-06 |
| CSC3974 | Sichuan Airlines | 1 | 2026-05-07 |
| CSC3344 | - | 1 | 2026-06-27 |
| CSC3311 | - | 1 | 2026-06-28 |
Recent flights last 29
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-24 | CSC8863 | CTU → TSN | Jul 24, 10:25 UTC | Jul 24, 10:50 UTC | 25m |
| 2026-07-23 | CSC8461 | CTU → SHE | Jul 23, 01:10 UTC | Jul 23, 01:25 UTC | 15m |
| 2026-07-21 | CSC8710 | - | Jul 21, 00:40 UTC | Jul 21, 01:00 UTC | 20m |
| 2026-07-20 | CSC8709 | CTU → SZX | Jul 20, 13:20 UTC | Jul 20, 13:30 UTC | 10m |
| 2026-07-19 | CSC8710 | - | Jul 19, 00:40 UTC | Jul 19, 00:55 UTC | 15m |
| 2026-07-18 | CSC6795 | - | Jul 18, 12:20 UTC | Jul 18, 12:30 UTC | 10m |
| 2026-07-17 | CSC6796 | - | Jul 17, 23:10 UTC | Jul 17, 23:20 UTC | 10m |
| 2026-07-17 | CSC8709 | CTU → SZX | Jul 17, 13:35 UTC | Jul 17, 13:45 UTC | 10m |
| 2026-07-17 | CSC8704 | - | Jul 17, 07:55 UTC | Jul 17, 08:10 UTC | 15m |
| 2026-07-14 | CSC8880 | - | Jul 14, 22:40 UTC | Jul 14, 23:05 UTC | 24m |
| 2026-07-14 | CSC8710 | - | Jul 14, 00:45 UTC | Jul 14, 00:55 UTC | 10m |
| 2026-07-12 | CSC6796 | - | Jul 12, 23:00 UTC | Jul 12, 23:10 UTC | 10m |
| 2026-07-05 | CSC8461 | - | Jul 5, 01:20 UTC | Jul 5, 01:35 UTC | 15m |
| 2026-07-01 | CSC8708 | - | Jul 1, 11:35 UTC | Jul 1, 11:45 UTC | 10m |
| 2026-06-28 | CSC3311 | - | Jun 28, 23:54 UTC | Jun 29, 00:34 UTC | 40m |
| 2026-06-27 | CSC3344 | - | Jun 27, 01:24 UTC | Jun 27, 12:09 UTC | 10h 45m |
| 2026-06-15 | CSC8760 | SYX → CTU | Jun 15, 14:00 UTC | Jun 15, 14:20 UTC | 20m |
| 2026-06-15 | CSC8759 | CTU → SYX | Jun 15, 11:05 UTC | Jun 15, 11:34 UTC | 30m |
| 2026-05-10 | CSC8710 | SZX → CTU | May 10, 00:20 UTC | May 10, 00:34 UTC | 15m |
| 2026-05-07 | CSC3974 | ICN → TFU | May 7, 06:05 UTC | May 7, 06:20 UTC | 15m |
| 2026-05-06 | CSC6461 | TFU → SHE | May 6, 08:30 UTC | May 7, 03:05 UTC | 18h 34m |
| 2026-05-03 | CSC6880 | PEK → TFU | May 3, 00:35 UTC | May 3, 00:55 UTC | 20m |
| 2026-05-01 | CSC6796 | SZX → TFU | May 1, 23:30 UTC | May 1, 23:45 UTC | 15m |
| 2026-04-30 | CSC6796 | SZX → TFU | Apr 30, 23:20 UTC | Apr 30, 23:35 UTC | 15m |
| 2026-04-30 | CSC8710 | SZX → CTU | Apr 30, 00:40 UTC | Apr 30, 00:50 UTC | 10m |
| 2026-04-29 | CSC8703 | CTU → SZX | Apr 29, 07:10 UTC | Apr 29, 07:24 UTC | 15m |
| 2026-04-22 | CSC8710 | SZX → CTU | Apr 22, 00:30 UTC | Apr 22, 00:45 UTC | 15m |
| 2026-04-14 | CSC8708 | SZX → CTU | Apr 14, 11:35 UTC | Apr 14, 11:50 UTC | 15m |
| 2026-04-14 | CSC8707 | CTU → SZX | Apr 14, 09:35 UTC | Apr 14, 09:45 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-6551 page for operator, model, and routing details .