sensors Mode-S transponder
7809FA
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-9916 · AIRBUS A-320
- Hex
- 7809FA
- Octal
- 36004772
- Decimal
- 7,866,874
- Country
- CN
- Tail
- B-9916
- Type
- A320
- Flights observed
- 50
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 14h ago
Last known position
Country allocation
The ICAO 24-bit address 7809FA 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 |
|---|---|---|---|
| CSN6325 | - | 7 | 2026-07-23 |
| CSN6326 | - | 6 | 2026-07-19 |
| CSN6435 | - | 5 | 2026-07-10 |
| CSN6328 | - | 4 | 2026-07-12 |
| CSN6433 | - | 3 | 2026-07-15 |
| CSN6327 | - | 3 | 2026-07-12 |
| CSN6337 | China Southern Airlines | 2 | 2026-05-28 |
| CSN3607 | - | 2 | 2026-07-20 |
| CSN8661 | - | 1 | 2026-07-08 |
| CSN8643 | - | 1 | 2026-07-16 |
| CSN8316 | - | 1 | 2026-07-07 |
| CSN8315 | - | 1 | 2026-07-07 |
| CSN8293 | China Southern Airlines | 1 | 2026-04-28 |
| CSN6467 | China Southern Airlines | 1 | 2026-06-09 |
| CSN6338 | China Southern Airlines | 1 | 2026-05-29 |
| CSN6246 | - | 1 | 2026-05-15 |
| CSN5722 | - | 1 | 2026-07-13 |
| CSN5259 | - | 1 | 2026-07-22 |
| CSN3817 | China Southern Airlines | 1 | 2026-04-14 |
| CSN3805 | - | 1 | 2026-06-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-23 | CSN6325 | - | Jul 23, 04:40 UTC | Jul 23, 05:05 UTC | 25m |
| 2026-07-22 | CSN5259 | - | Jul 22, 01:30 UTC | Jul 22, 13:35 UTC | 12h 5m |
| 2026-07-20 | CSN3607 | - | Jul 20, 11:55 UTC | Jul 20, 12:05 UTC | 10m |
| 2026-07-19 | CSN6326 | - | Jul 19, 07:50 UTC | Jul 19, 08:00 UTC | 10m |
| 2026-07-19 | CSN6325 | - | Jul 19, 05:20 UTC | Jul 19, 05:50 UTC | 30m |
| 2026-07-17 | CSN3407 | - | Jul 17, 06:10 UTC | Jul 17, 06:54 UTC | 45m |
| 2026-07-16 | CSN8643 | - | Jul 16, 14:35 UTC | Jul 16, 15:00 UTC | 25m |
| 2026-07-15 | CSN6433 | - | Jul 15, 01:20 UTC | Jul 15, 15:15 UTC | 13h 55m |
| 2026-07-13 | CSN5722 | - | Jul 13, 09:05 UTC | Jul 13, 12:00 UTC | 2h 55m |
| 2026-07-12 | CSN6328 | - | Jul 12, 12:10 UTC | Jul 12, 12:20 UTC | 10m |
| 2026-07-12 | CSN6327 | - | Jul 12, 09:55 UTC | Jul 12, 10:10 UTC | 15m |
| 2026-07-10 | CSN6435 | - | Jul 10, 08:25 UTC | Jul 10, 13:50 UTC | 5h 25m |
| 2026-07-09 | CSN6435 | - | Jul 9, 12:05 UTC | Jul 10, 08:40 UTC | 20h 35m |
| 2026-07-08 | CSN3371 | - | Jul 8, 14:10 UTC | Jul 8, 14:20 UTC | 10m |
| 2026-07-08 | CSN8661 | - | Jul 8, 06:35 UTC | Jul 8, 06:55 UTC | 20m |
| 2026-07-07 | CSN8316 | - | Jul 7, 09:15 UTC | Jul 8, 06:55 UTC | 21h 40m |
| 2026-07-07 | CSN8315 | - | Jul 7, 06:25 UTC | Jul 7, 07:55 UTC | 1h 30m |
| 2026-07-05 | CSN3648 | - | Jul 5, 14:30 UTC | Jul 5, 15:00 UTC | 30m |
| 2026-06-26 | CSN6435 | - | Jun 26, 08:15 UTC | Jun 26, 13:45 UTC | 5h 30m |
| 2026-06-25 | CSN6326 | - | Jun 25, 06:20 UTC | Jun 25, 06:35 UTC | 15m |
| 2026-06-25 | CSN6325 | - | Jun 25, 03:34 UTC | Jun 25, 04:49 UTC | 1h 15m |
| 2026-06-22 | CSN6435 | - | Jun 22, 07:54 UTC | Jun 22, 13:39 UTC | 5h 45m |
| 2026-06-21 | CSN6435 | - | Jun 21, 14:34 UTC | Jun 22, 13:39 UTC | 23h 5m |
| 2026-06-20 | CSN3805 | - | Jun 20, 10:39 UTC | Jun 20, 10:49 UTC | 10m |
| 2026-06-19 | CSN3481 | - | Jun 19, 22:55 UTC | Jun 20, 03:19 UTC | 4h 25m |
| 2026-06-17 | CSN6326 | - | Jun 17, 06:00 UTC | Jun 17, 06:10 UTC | 10m |
| 2026-06-17 | CSN6325 | - | Jun 17, 03:55 UTC | Jun 17, 04:15 UTC | 20m |
| 2026-06-09 | CSN6467 | DLC → CAN | Jun 9, 10:55 UTC | Jun 9, 11:15 UTC | 20m |
| 2026-06-05 | CSN6433 | DLC → TFU | Jun 5, 01:15 UTC | Jun 5, 07:05 UTC | 5h 50m |
| 2026-05-30 | CSN3607 | - | May 30, 09:30 UTC | May 30, 09:40 UTC | 10m |
| 2026-05-29 | CSN6338 | HAK → NKG | May 29, 06:50 UTC | May 30, 04:25 UTC | 21h 35m |
| 2026-05-28 | CSN6337 | NKG → HAK | May 28, 09:00 UTC | May 29, 04:10 UTC | 19h 10m |
| 2026-05-17 | CSN6433 | DLC → TFU | May 17, 15:35 UTC | May 18, 07:00 UTC | 15h 25m |
| 2026-05-16 | CSN6328 | - | May 16, 12:11 UTC | May 16, 12:21 UTC | 10m |
| 2026-05-16 | CSN6327 | DLC → SZX | May 16, 08:46 UTC | May 16, 10:11 UTC | 1h 25m |
| 2026-05-15 | CSN6246 | - | May 15, 16:40 UTC | May 15, 16:55 UTC | 15m |
| 2026-05-14 | CSN6328 | - | May 14, 15:40 UTC | May 14, 15:50 UTC | 10m |
| 2026-05-14 | CSN6328 | - | May 14, 14:30 UTC | May 14, 14:45 UTC | 15m |
| 2026-05-14 | CSN6327 | DLC → SZX | May 14, 11:25 UTC | May 14, 11:45 UTC | 20m |
| 2026-05-12 | CSN6337 | NKG → HAK | May 12, 03:45 UTC | May 12, 04:05 UTC | 20m |
| 2026-05-06 | CSN6326 | - | May 6, 05:55 UTC | May 6, 06:10 UTC | 15m |
| 2026-05-06 | CSN6325 | - | May 6, 03:45 UTC | May 6, 04:10 UTC | 25m |
| 2026-05-02 | CSN3423 | - | May 2, 03:35 UTC | May 2, 03:50 UTC | 15m |
| 2026-04-28 | CSN8293 | CAN → NGB | Apr 28, 02:00 UTC | Apr 28, 02:15 UTC | 15m |
| 2026-04-24 | CSN3603 | - | Apr 24, 16:00 UTC | Apr 24, 16:20 UTC | 20m |
| 2026-04-24 | CSN6326 | - | Apr 24, 09:45 UTC | Apr 24, 10:00 UTC | 15m |
| 2026-04-24 | CSN6326 | - | Apr 24, 08:50 UTC | Apr 24, 09:00 UTC | 10m |
| 2026-04-24 | CSN6325 | - | Apr 24, 06:15 UTC | Apr 24, 06:30 UTC | 15m |
| 2026-04-24 | CSN6325 | - | Apr 24, 04:50 UTC | Apr 24, 05:20 UTC | 30m |
| 2026-04-14 | CSN3817 | CAN → HFE | Apr 14, 11:20 UTC | Apr 14, 11:30 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-9916 page for operator, model, and routing details .