sensors Mode-S transponder
7807A9
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-6807 · AIRBUS A-320
- Hex
- 7807A9
- Octal
- 36003651
- Decimal
- 7,866,281
- Country
- CN
- Tail
- B-6807
- Type
- A320
- Flights observed
- 34
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 12d ago
Last known position
Country allocation
The ICAO 24-bit address 7807A9 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 |
|---|---|---|---|
| CSZ9723 | - | 8 | 2026-05-22 |
| CSZ9606 | Shenzhen Airlines | 4 | 2026-05-19 |
| CSZ9727 | Shenzhen Airlines | 3 | 2026-05-17 |
| CSZ9605 | Shenzhen Airlines | 2 | 2026-05-04 |
| CSZ9990 | Shenzhen Airlines | 1 | 2026-04-19 |
| CSZ9978 | - | 1 | 2026-04-18 |
| CSZ9962 | - | 1 | 2026-04-15 |
| CSZ9961 | - | 1 | 2026-04-14 |
| CSZ9728 | Shenzhen Airlines | 1 | 2026-04-29 |
| CSZ9712 | Shenzhen Airlines | 1 | 2026-04-30 |
| CSZ9623 | Shenzhen Airlines | 1 | 2026-05-02 |
| CSZ9534 | Shenzhen Airlines | 1 | 2026-04-20 |
| CSZ9457 | Shenzhen Airlines | 1 | 2026-05-20 |
| CSZ9302 | Shenzhen Airlines | 1 | 2026-05-02 |
| CSZ9301 | Shenzhen Airlines | 1 | 2026-05-02 |
| CSZ9239 | Shenzhen Airlines | 1 | 2026-05-04 |
| CSZ9233 | Shenzhen Airlines | 1 | 2026-05-03 |
| CSZ9205 | Shenzhen Airlines | 1 | 2026-05-01 |
| CSZ9126 | Shenzhen Airlines | 1 | 2026-05-19 |
| CSZ9125 | Shenzhen Airlines | 1 | 2026-05-19 |
Recent flights last 34
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-22 | CSZ9723 | - | May 22, 11:00 UTC | May 23, 02:20 UTC | 15h 20m |
| 2026-05-22 | CSZ9723 | - | May 22, 06:25 UTC | May 23, 02:20 UTC | 19h 55m |
| 2026-05-22 | CSZ9723 | - | May 22, 02:30 UTC | May 23, 02:15 UTC | 23h 45m |
| 2026-05-21 | CSZ9723 | - | May 21, 19:10 UTC | May 22, 11:00 UTC | 15h 50m |
| 2026-05-20 | CSZ9457 | SZX → KMG | May 20, 08:20 UTC | May 20, 08:35 UTC | 15m |
| 2026-05-19 | CSZ9126 | TSN → SZX | May 19, 13:55 UTC | May 19, 14:10 UTC | 15m |
| 2026-05-19 | CSZ9125 | SZX → TSN | May 19, 06:50 UTC | May 19, 07:05 UTC | 15m |
| 2026-05-19 | CSZ9606 | JDZ → CAN | May 19, 05:05 UTC | May 19, 05:20 UTC | 15m |
| 2026-05-19 | CSZ9606 | JDZ → CAN | May 19, 02:25 UTC | May 19, 02:35 UTC | 10m |
| 2026-05-18 | CSZ9723 | - | May 18, 02:00 UTC | May 18, 11:50 UTC | 9h 50m |
| 2026-05-17 | CSZ9727 | CGO → HAK | May 17, 06:30 UTC | May 18, 02:45 UTC | 20h 15m |
| 2026-05-16 | - | - | May 16, 08:51 UTC | May 16, 09:01 UTC | 10m |
| 2026-05-13 | CSZ9723 | - | May 13, 05:40 UTC | May 13, 10:40 UTC | 5h 0m |
| 2026-05-11 | CSZ9723 | - | May 11, 06:10 UTC | May 11, 10:05 UTC | 3h 55m |
| 2026-05-09 | CSZ9723 | - | May 9, 06:55 UTC | May 9, 11:35 UTC | 4h 40m |
| 2026-05-07 | CSZ9727 | CGO → HAK | May 7, 06:35 UTC | May 7, 13:45 UTC | 7h 10m |
| 2026-05-04 | CSZ9605 | CAN → JDZ | May 4, 14:05 UTC | May 4, 14:15 UTC | 10m |
| 2026-05-04 | CSZ9605 | CAN → JDZ | May 4, 11:40 UTC | May 4, 11:55 UTC | 15m |
| 2026-05-04 | CSZ9239 | SZX → URC | May 4, 02:19 UTC | May 4, 02:30 UTC | 10m |
| 2026-05-03 | CSZ9233 | SZX → XNN | May 3, 07:15 UTC | May 3, 07:30 UTC | 15m |
| 2026-05-02 | CSZ9623 | SZX → HRB | May 2, 09:45 UTC | May 3, 02:45 UTC | 17h 0m |
| 2026-05-02 | CSZ9302 | CGO → SZX | May 2, 06:05 UTC | May 2, 06:15 UTC | 10m |
| 2026-05-02 | CSZ9301 | SZX → CGO | May 2, 00:10 UTC | May 2, 00:25 UTC | 15m |
| 2026-05-01 | CSZ9205 | SZX → XIY | May 1, 06:50 UTC | May 1, 07:00 UTC | 10m |
| 2026-05-01 | CSZ9606 | JDZ → CAN | May 1, 05:00 UTC | May 1, 05:10 UTC | 10m |
| 2026-04-30 | CSZ9606 | JDZ → CAN | Apr 30, 13:15 UTC | May 1, 02:40 UTC | 13h 25m |
| 2026-04-30 | CSZ9712 | KHN → CAN | Apr 30, 02:00 UTC | Apr 30, 13:20 UTC | 11h 20m |
| 2026-04-29 | CSZ9728 | CGO → SHE | Apr 29, 14:35 UTC | Apr 30, 13:20 UTC | 22h 45m |
| 2026-04-29 | CSZ9727 | CGO → HAK | Apr 29, 07:40 UTC | Apr 30, 02:00 UTC | 18h 20m |
| 2026-04-20 | CSZ9534 | ZUH → WUX | Apr 20, 14:35 UTC | Apr 20, 14:50 UTC | 15m |
| 2026-04-19 | CSZ9990 | HFE → SZX | Apr 19, 05:30 UTC | Apr 19, 05:40 UTC | 10m |
| 2026-04-18 | CSZ9978 | - | Apr 18, 15:30 UTC | Apr 18, 15:40 UTC | 10m |
| 2026-04-15 | CSZ9962 | - | Apr 15, 23:45 UTC | Apr 16, 00:20 UTC | 35m |
| 2026-04-14 | CSZ9961 | - | Apr 14, 23:10 UTC | Apr 14, 23:20 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-6807 page for operator, model, and routing details .