sensors Mode-S transponder
7807C3
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6815 · AIRBUS A-320
- Hex
- 7807C3
- Octal
- 36003703
- Decimal
- 7,866,307
- Country
- CN
- Tail
- B-6815
- Type
- A320
- Flights observed
- 99
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 17d ago
Last known position
Country allocation
The ICAO 24-bit address 7807C3 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 |
|---|---|---|---|
| CSN8258 | China Southern Airlines | 24 | 2026-07-26 |
| CSN6774 | China Southern Airlines | 8 | 2026-07-25 |
| CSN5120 | - | 8 | 2026-07-06 |
| CSN6557 | China Southern Airlines | 6 | 2026-06-22 |
| CSN5119 | - | 6 | 2026-07-06 |
| CSN8257 | - | 4 | 2026-07-18 |
| CSN6794 | - | 4 | 2026-07-01 |
| CSN6726 | - | 4 | 2026-07-13 |
| CSN6720 | China Southern Airlines | 4 | 2026-06-29 |
| CSN6558 | China Southern Airlines | 4 | 2026-06-22 |
| CSN3432 | - | 4 | 2026-07-03 |
| CSN8689 | - | 3 | 2026-07-21 |
| CSN6719 | China Southern Airlines | 3 | 2026-07-08 |
| CSN5594 | China Southern Airlines | 3 | 2026-06-28 |
| CSN6793 | China Southern Airlines | 2 | 2026-05-27 |
| CSN6727 | China Southern Airlines | 2 | 2026-07-25 |
| CSN6725 | - | 2 | 2026-07-12 |
| CSN6792 | China Southern Airlines | 1 | 2026-05-11 |
| CSN6790 | China Southern Airlines | 1 | 2026-05-21 |
| CSN6728 | China Southern Airlines | 1 | 2026-06-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CSN8258 | PVG → HAK | Jul 26, 00:35 UTC | Jul 26, 13:55 UTC | 13h 21m |
| 2026-07-25 | CSN6727 | HAK → XIY | Jul 25, 04:35 UTC | Jul 25, 10:30 UTC | 5h 55m |
| 2026-07-25 | CSN6774 | CAN → HAK | Jul 25, 02:20 UTC | Jul 25, 02:30 UTC | 10m |
| 2026-07-24 | CSN6774 | CAN → HAK | Jul 24, 01:45 UTC | Jul 24, 02:05 UTC | 20m |
| 2026-07-23 | CSN8258 | PVG → HAK | Jul 23, 00:40 UTC | Jul 23, 15:25 UTC | 14h 45m |
| 2026-07-22 | CSN8258 | PVG → HAK | Jul 22, 16:35 UTC | Jul 23, 11:05 UTC | 18h 30m |
| 2026-07-22 | CSN8258 | PVG → HAK | Jul 22, 13:05 UTC | Jul 23, 11:05 UTC | 22h 0m |
| 2026-07-22 | CSN6774 | CAN → HAK | Jul 22, 02:45 UTC | Jul 22, 03:00 UTC | 15m |
| 2026-07-21 | CSN8689 | - | Jul 21, 12:20 UTC | Jul 21, 16:20 UTC | 4h 0m |
| 2026-07-21 | CSN8258 | - | Jul 21, 00:35 UTC | Jul 21, 10:15 UTC | 9h 40m |
| 2026-07-20 | CSN8258 | - | Jul 20, 12:50 UTC | Jul 21, 10:15 UTC | 21h 24m |
| 2026-07-19 | CSN8258 | - | Jul 19, 01:40 UTC | Jul 19, 08:55 UTC | 7h 15m |
| 2026-07-18 | CSN8257 | - | Jul 18, 12:50 UTC | Jul 19, 08:55 UTC | 20h 5m |
| 2026-07-18 | CSN8257 | - | Jul 18, 10:15 UTC | Jul 19, 01:45 UTC | 15h 30m |
| 2026-07-16 | CSN8258 | - | Jul 16, 13:34 UTC | Jul 17, 04:44 UTC | 15h 10m |
| 2026-07-14 | CSN8258 | - | Jul 14, 12:55 UTC | Jul 15, 02:05 UTC | 13h 9m |
| 2026-07-13 | CSN6722 | - | Jul 13, 13:35 UTC | Jul 13, 13:45 UTC | 10m |
| 2026-07-13 | CSN6726 | - | Jul 13, 02:05 UTC | Jul 13, 07:25 UTC | 5h 20m |
| 2026-07-12 | CSN6726 | - | Jul 12, 08:50 UTC | Jul 13, 07:25 UTC | 22h 35m |
| 2026-07-12 | CSN6725 | - | Jul 12, 04:45 UTC | Jul 13, 02:15 UTC | 21h 30m |
| 2026-07-11 | CSN6774 | - | Jul 11, 01:45 UTC | Jul 11, 02:00 UTC | 15m |
| 2026-07-10 | CSN8258 | - | Jul 10, 00:50 UTC | Jul 10, 15:25 UTC | 14h 35m |
| 2026-07-09 | CSN8258 | - | Jul 9, 14:55 UTC | Jul 10, 11:00 UTC | 20h 5m |
| 2026-07-09 | CSN8258 | - | Jul 9, 06:50 UTC | Jul 10, 02:05 UTC | 19h 15m |
| 2026-07-09 | CSN6726 | - | Jul 9, 02:15 UTC | Jul 9, 15:05 UTC | 12h 50m |
| 2026-07-08 | CSN6719 | HAK → PKX | Jul 8, 11:25 UTC | Jul 8, 14:25 UTC | 3h 0m |
| 2026-07-08 | CSN8258 | - | Jul 8, 00:40 UTC | Jul 8, 09:20 UTC | 8h 40m |
| 2026-07-07 | CSN8257 | - | Jul 7, 12:50 UTC | Jul 8, 09:20 UTC | 20h 30m |
| 2026-07-07 | CSN8257 | - | Jul 7, 12:35 UTC | Jul 8, 09:20 UTC | 20h 45m |
| 2026-07-06 | CSN8258 | - | Jul 6, 12:50 UTC | Jul 7, 10:05 UTC | 21h 15m |
| 2026-07-06 | CSN5120 | - | Jul 6, 08:40 UTC | Jul 6, 08:55 UTC | 15m |
| 2026-07-06 | CSN5119 | - | Jul 6, 06:55 UTC | Jul 6, 07:05 UTC | 10m |
| 2026-07-05 | CSN8258 | - | Jul 5, 13:55 UTC | Jul 6, 02:00 UTC | 12h 5m |
| 2026-07-04 | CSN5120 | - | Jul 4, 10:50 UTC | Jul 4, 11:05 UTC | 15m |
| 2026-07-04 | CSN5119 | - | Jul 4, 07:35 UTC | Jul 4, 07:45 UTC | 10m |
| 2026-07-03 | CSN3432 | - | Jul 3, 11:00 UTC | Jul 4, 04:35 UTC | 17h 35m |
| 2026-07-03 | CSN3432 | - | Jul 3, 08:40 UTC | Jul 4, 04:35 UTC | 19h 55m |
| 2026-07-03 | CSN3432 | - | Jul 3, 04:55 UTC | Jul 4, 04:35 UTC | 23h 40m |
| 2026-07-03 | CSN8258 | - | Jul 3, 01:50 UTC | Jul 4, 00:30 UTC | 22h 40m |
| 2026-07-02 | CSN8258 | - | Jul 2, 13:45 UTC | Jul 3, 11:00 UTC | 21h 15m |
| 2026-07-01 | CSN6794 | - | Jul 1, 16:00 UTC | Jul 1, 16:15 UTC | 15m |
| 2026-06-30 | CSN8258 | - | Jun 30, 12:55 UTC | Jul 1, 02:15 UTC | 13h 20m |
| 2026-06-30 | CSN5120 | - | Jun 30, 08:35 UTC | Jun 30, 08:45 UTC | 10m |
| 2026-06-29 | CSN6720 | PKX → HAK | Jun 29, 14:14 UTC | Jun 29, 14:29 UTC | 15m |
| 2026-06-28 | CSN5594 | HAK → CSX | Jun 28, 08:44 UTC | Jun 28, 08:59 UTC | 15m |
| 2026-06-27 | CSN6720 | PKX → HAK | Jun 27, 13:55 UTC | Jun 27, 14:14 UTC | 20m |
| 2026-06-27 | CSN6719 | HAK → PKX | Jun 27, 11:25 UTC | Jun 27, 11:39 UTC | 15m |
| 2026-06-27 | CSN5120 | - | Jun 27, 08:29 UTC | Jun 27, 08:44 UTC | 15m |
| 2026-06-27 | CSN5119 | - | Jun 27, 06:50 UTC | Jun 27, 07:04 UTC | 15m |
| 2026-06-27 | CSN3432 | KMG → HAK | Jun 27, 04:05 UTC | Jun 27, 04:29 UTC | 25m |
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-6815 page for operator, model, and routing details .