sensors Mode-S transponder
781155
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8993 · AIRBUS A-321
- Hex
- 781155
- Octal
- 36010525
- Decimal
- 7,868,757
- Country
- CN
- Tail
- B-8993
- Type
- A321
- Flights observed
- 28
- Distinct callsigns
- 8
- Country
- CN
- Last broadcast
- 1d ago
Last known position
Country allocation
The ICAO 24-bit address 781155 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 8 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| CSN314 | China Southern Airlines | 6 | 2026-05-21 |
| CSN313 | China Southern Airlines | 6 | 2026-05-21 |
| CSN6077 | China Southern Airlines | 5 | 2026-05-08 |
| CSN6096 | China Southern Airlines | 4 | 2026-05-02 |
| CSN6209 | China Southern Airlines | 3 | 2026-06-03 |
| CSN6373 | China Southern Airlines | 2 | 2026-06-04 |
| CSN6543 | China Southern Airlines | 1 | 2026-04-17 |
| CSN6078 | China Southern Airlines | 1 | 2026-04-26 |
Recent flights last 28
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-04 | CSN6373 | CGQ → PVG | Jun 4, 12:55 UTC | Jun 5, 04:55 UTC | 16h 0m |
| 2026-06-03 | CSN6373 | CGQ → PVG | Jun 3, 13:20 UTC | Jun 4, 13:05 UTC | 23h 45m |
| 2026-06-03 | CSN6209 | HRB → PVG | Jun 3, 03:45 UTC | Jun 3, 13:20 UTC | 9h 35m |
| 2026-06-02 | CSN6209 | HRB → PVG | Jun 2, 12:55 UTC | Jun 3, 09:30 UTC | 20h 35m |
| 2026-05-21 | CSN314 | ICN → PVG | May 21, 04:05 UTC | May 21, 04:50 UTC | 45m |
| 2026-05-21 | CSN313 | PVG → ICN | May 21, 01:40 UTC | May 21, 02:20 UTC | 40m |
| 2026-05-20 | CSN313 | PVG → ICN | May 20, 03:55 UTC | May 21, 02:20 UTC | 22h 26m |
| 2026-05-17 | CSN314 | ICN → PVG | May 17, 03:55 UTC | May 17, 04:35 UTC | 40m |
| 2026-05-17 | CSN313 | PVG → ICN | May 17, 02:00 UTC | May 17, 02:30 UTC | 30m |
| 2026-05-14 | CSN6209 | HRB → PVG | May 14, 03:40 UTC | May 14, 04:10 UTC | 30m |
| 2026-05-12 | CSN314 | ICN → PVG | May 12, 03:55 UTC | May 12, 04:20 UTC | 25m |
| 2026-05-08 | CSN6077 | PVG → SGN | May 8, 02:39 UTC | May 8, 08:14 UTC | 5h 35m |
| 2026-05-06 | CSN314 | ICN → PVG | May 6, 04:10 UTC | May 6, 04:35 UTC | 25m |
| 2026-05-06 | CSN313 | PVG → ICN | May 6, 01:50 UTC | May 6, 02:20 UTC | 30m |
| 2026-05-02 | CSN6096 | SGN → SZX | May 2, 21:40 UTC | May 3, 11:30 UTC | 13h 49m |
| 2026-05-02 | CSN6096 | SGN → SZX | May 2, 16:05 UTC | May 3, 11:30 UTC | 19h 24m |
| 2026-05-02 | CSN6096 | SGN → SZX | May 2, 08:00 UTC | May 2, 22:35 UTC | 14h 35m |
| 2026-05-02 | CSN6096 | SGN → SZX | May 2, 02:35 UTC | May 2, 22:35 UTC | 20h 0m |
| 2026-04-26 | CSN6078 | SGN → PVG | Apr 26, 07:50 UTC | Apr 26, 21:50 UTC | 14h 0m |
| 2026-04-26 | CSN6077 | PVG → SGN | Apr 26, 04:40 UTC | Apr 26, 04:50 UTC | 10m |
| 2026-04-26 | CSN6077 | PVG → SGN | Apr 26, 02:40 UTC | Apr 26, 02:55 UTC | 15m |
| 2026-04-25 | CSN314 | ICN → PVG | Apr 25, 03:50 UTC | Apr 26, 02:55 UTC | 23h 5m |
| 2026-04-25 | CSN313 | PVG → ICN | Apr 25, 01:35 UTC | Apr 25, 02:15 UTC | 40m |
| 2026-04-22 | CSN314 | ICN → PVG | Apr 22, 03:50 UTC | Apr 22, 04:15 UTC | 25m |
| 2026-04-21 | CSN313 | PVG → ICN | Apr 21, 08:15 UTC | Apr 22, 02:15 UTC | 18h 0m |
| 2026-04-21 | CSN6077 | PVG → SGN | Apr 21, 02:35 UTC | Apr 21, 02:45 UTC | 10m |
| 2026-04-20 | CSN6077 | PVG → SGN | Apr 20, 04:20 UTC | Apr 21, 02:45 UTC | 22h 25m |
| 2026-04-17 | CSN6543 | CGQ → PVG | Apr 17, 04:05 UTC | Apr 17, 04:15 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-8993 page for operator, model, and routing details .