sensors Mode-S transponder
780F12
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-8339 · AIRBUS A-320
- Hex
- 780F12
- Octal
- 36007422
- Decimal
- 7,868,178
- Country
- CN
- Tail
- B-8339
- Type
- A320
- Flights observed
- 38
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 18h ago
Last known position
Country allocation
The ICAO 24-bit address 780F12 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 |
|---|---|---|---|
| CSN6214 | China Southern Airlines | 5 | 2026-05-19 |
| CSN6346 | China Southern Airlines | 3 | 2026-05-27 |
| CSN6218 | China Southern Airlines | 3 | 2026-05-28 |
| CSN6208 | China Southern Airlines | 3 | 2026-05-29 |
| CSN6204 | China Southern Airlines | 3 | 2026-05-09 |
| CSN3744 | China Southern Airlines | 3 | 2026-05-06 |
| CSN6267 | China Southern Airlines | 2 | 2026-05-28 |
| CSN6220 | China Southern Airlines | 2 | 2026-05-21 |
| CSN5974 | China Southern Airlines | 2 | 2026-05-20 |
| CSN6274 | China Southern Airlines | 1 | 2026-05-25 |
| CSN6273 | China Southern Airlines | 1 | 2026-05-25 |
| CSN6268 | China Southern Airlines | 1 | 2026-04-24 |
| CSN6251 | China Southern Airlines | 1 | 2026-04-25 |
| CSN6219 | China Southern Airlines | 1 | 2026-04-24 |
| CSN6202 | China Southern Airlines | 1 | 2026-05-26 |
| CSN6201 | China Southern Airlines | 1 | 2026-04-21 |
| CSN5973 | China Southern Airlines | 1 | 2026-05-19 |
| CSN5968 | China Southern Airlines | 1 | 2026-05-02 |
| CSN5299 | China Southern Airlines | 1 | 2026-06-02 |
| CSN3449 | - | 1 | 2026-04-14 |
Recent flights last 38
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CSN5299 | PKX → JHG | Jun 2, 13:10 UTC | Jun 2, 13:30 UTC | 20m |
| 2026-05-29 | CSN6208 | PKX → HRB | May 29, 11:10 UTC | May 30, 10:20 UTC | 23h 10m |
| 2026-05-28 | CSN6267 | PKX → HRB | May 28, 23:30 UTC | May 28, 23:40 UTC | 10m |
| 2026-05-28 | CSN6218 | PKX → HRB | May 28, 08:15 UTC | May 28, 08:25 UTC | 10m |
| 2026-05-27 | CSN6346 | CKG → HRB | May 27, 11:05 UTC | May 27, 11:20 UTC | 15m |
| 2026-05-26 | CSN6202 | PKX → HRB | May 26, 14:50 UTC | May 26, 15:00 UTC | 10m |
| 2026-05-25 | CSN6274 | SZX → HRB | May 25, 07:10 UTC | May 25, 07:20 UTC | 10m |
| 2026-05-25 | CSN6273 | HRB → SZX | May 25, 04:55 UTC | May 25, 05:05 UTC | 10m |
| 2026-05-21 | CSN6267 | PKX → HRB | May 21, 23:35 UTC | May 21, 23:45 UTC | 10m |
| 2026-05-21 | CSN6220 | PKX → HRB | May 21, 04:25 UTC | May 21, 04:35 UTC | 10m |
| 2026-05-20 | CSN5974 | CSX → HRB | May 20, 01:00 UTC | May 20, 13:20 UTC | 12h 21m |
| 2026-05-19 | CSN5973 | HRB → CSX | May 19, 13:40 UTC | May 20, 01:10 UTC | 11h 30m |
| 2026-05-19 | CSN6214 | PKX → DQA | May 19, 03:10 UTC | May 20, 01:10 UTC | 22h 0m |
| 2026-05-18 | CSN6214 | PKX → DQA | May 18, 03:05 UTC | May 18, 15:20 UTC | 12h 15m |
| 2026-05-17 | CSN6346 | CKG → HRB | May 17, 11:15 UTC | May 17, 11:25 UTC | 10m |
| 2026-05-09 | CSN6218 | PKX → HRB | May 9, 08:15 UTC | May 9, 08:30 UTC | 15m |
| 2026-05-09 | CSN6204 | PKX → HRB | May 9, 00:50 UTC | May 9, 01:00 UTC | 10m |
| 2026-05-08 | CSN6218 | PKX → HRB | May 8, 08:14 UTC | May 8, 08:24 UTC | 10m |
| 2026-05-08 | CSN6204 | PKX → HRB | May 8, 00:49 UTC | May 8, 01:04 UTC | 15m |
| 2026-05-07 | CSN6220 | PKX → HRB | May 7, 04:20 UTC | May 7, 04:30 UTC | 10m |
| 2026-05-06 | CSN3744 | SZX → HRB | May 6, 12:01 UTC | May 6, 12:15 UTC | 15m |
| 2026-05-06 | CSN3744 | SZX → HRB | May 6, 09:35 UTC | May 6, 09:45 UTC | 10m |
| 2026-05-05 | CSN6214 | PKX → DQA | May 5, 03:10 UTC | May 5, 03:20 UTC | 10m |
| 2026-05-04 | CSN6214 | PKX → DQA | May 4, 03:19 UTC | May 4, 03:35 UTC | 15m |
| 2026-05-02 | CSN5968 | PKX → HRB | May 2, 03:30 UTC | May 2, 09:20 UTC | 5h 50m |
| 2026-04-30 | CSN6214 | PKX → DQA | Apr 30, 03:05 UTC | Apr 30, 03:15 UTC | 10m |
| 2026-04-25 | CSN6251 | HRB → PVG | Apr 25, 00:45 UTC | Apr 25, 09:15 UTC | 8h 30m |
| 2026-04-24 | CSN6208 | PKX → HRB | Apr 24, 11:05 UTC | Apr 24, 11:15 UTC | 10m |
| 2026-04-24 | CSN6268 | HRB → PKX | Apr 24, 09:15 UTC | Apr 24, 09:25 UTC | 10m |
| 2026-04-24 | CSN6219 | HRB → PKX | Apr 24, 02:05 UTC | Apr 24, 02:15 UTC | 10m |
| 2026-04-22 | CSN6204 | PKX → HRB | Apr 22, 00:45 UTC | Apr 22, 00:55 UTC | 10m |
| 2026-04-21 | CSN6208 | PKX → HRB | Apr 21, 11:05 UTC | Apr 21, 11:15 UTC | 10m |
| 2026-04-21 | CSN6201 | HRB → PKX | Apr 21, 01:00 UTC | Apr 21, 01:10 UTC | 10m |
| 2026-04-20 | CSN5974 | CSX → HRB | Apr 20, 01:20 UTC | Apr 20, 13:20 UTC | 12h 0m |
| 2026-04-19 | CSN6346 | CKG → HRB | Apr 19, 11:10 UTC | Apr 20, 01:35 UTC | 14h 25m |
| 2026-04-15 | CSN3744 | SZX → HRB | Apr 15, 09:50 UTC | Apr 15, 10:00 UTC | 10m |
| 2026-04-15 | - | - | Apr 15, 07:50 UTC | Apr 15, 08:05 UTC | 15m |
| 2026-04-14 | CSN3449 | - | Apr 14, 07:35 UTC | Apr 14, 07:50 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-8339 page for operator, model, and routing details .