sensors Mode-S transponder
7813F9
ICAO 24-bit transponder address · allocated to China
Currently assigned to B-1128 · BOEING 787-9 Dreamliner
- Hex
- 7813F9
- Octal
- 36011771
- Decimal
- 7,869,433
- Country
- CN
- Tail
- B-1128
- Type
- B789
- Flights observed
- 150
- Distinct callsigns
- 20
- Country
- CN
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 7813F9 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 |
|---|---|---|---|
| CSN354 | - | 11 | 2026-06-22 |
| CSN8065 | - | 9 | 2026-06-30 |
| CSN353 | - | 8 | 2026-06-22 |
| CSN336 | China Southern Airlines | 8 | 2026-05-23 |
| CSN303 | - | 7 | 2026-07-09 |
| CSN8066 | - | 6 | 2026-06-30 |
| CSN8021 | China Southern Airlines | 6 | 2026-05-20 |
| CSN335 | China Southern Airlines | 6 | 2026-05-22 |
| CSN8022 | China Southern Airlines | 5 | 2026-05-21 |
| CSN6902 | China Southern Airlines | 5 | 2026-06-05 |
| CSN304 | - | 5 | 2026-07-09 |
| CSN8069 | - | 4 | 2026-07-02 |
| CSN680 | China Southern Airlines | 4 | 2026-06-04 |
| CSN679 | China Southern Airlines | 4 | 2026-06-04 |
| CSN8171 | - | 3 | 2026-06-16 |
| CSN6901 | China Southern Airlines | 3 | 2026-06-06 |
| CSN653 | - | 3 | 2026-07-11 |
| CSN391 | - | 3 | 2026-06-22 |
| CSN338 | - | 3 | 2026-07-14 |
| CSN337 | - | 3 | 2026-07-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | CSN8050 | MEL → PKX | Jul 17, 21:15 UTC | Jul 18, 00:55 UTC | 3h 40m |
| 2026-07-17 | CSN8049 | - | Jul 17, 11:35 UTC | Jul 17, 18:25 UTC | 6h 50m |
| 2026-07-15 | CSN332 | - | Jul 15, 12:40 UTC | Jul 15, 18:45 UTC | 6h 5m |
| 2026-07-14 | CSN331 | - | Jul 14, 21:40 UTC | Jul 15, 03:55 UTC | 6h 14m |
| 2026-07-14 | CSN338 | - | Jul 14, 06:35 UTC | Jul 14, 07:15 UTC | 40m |
| 2026-07-14 | CSN337 | - | Jul 14, 04:05 UTC | Jul 14, 04:45 UTC | 40m |
| 2026-07-13 | CSN320 | - | Jul 13, 22:30 UTC | Jul 13, 22:50 UTC | 20m |
| 2026-07-13 | CSN320 | - | Jul 13, 15:35 UTC | Jul 13, 20:50 UTC | 5h 15m |
| 2026-07-13 | CSN319 | - | Jul 13, 08:20 UTC | Jul 13, 13:10 UTC | 4h 50m |
| 2026-07-11 | CSN654 | - | Jul 11, 20:40 UTC | Jul 12, 03:10 UTC | 6h 30m |
| 2026-07-11 | CSN653 | - | Jul 11, 09:50 UTC | Jul 11, 16:50 UTC | 7h 0m |
| 2026-07-09 | CSN304 | - | Jul 9, 21:15 UTC | Jul 10, 03:35 UTC | 6h 20m |
| 2026-07-09 | CSN303 | - | Jul 9, 11:15 UTC | Jul 9, 18:15 UTC | 7h 0m |
| 2026-07-08 | CSN303 | - | Jul 8, 16:40 UTC | Jul 9, 14:15 UTC | 21h 35m |
| 2026-07-08 | CSN5094 | - | Jul 8, 12:20 UTC | Jul 9, 11:55 UTC | 23h 35m |
| 2026-07-08 | CSN5094 | - | Jul 8, 10:45 UTC | Jul 8, 17:20 UTC | 6h 35m |
| 2026-07-07 | CSN5093 | - | Jul 7, 22:20 UTC | Jul 8, 05:05 UTC | 6h 45m |
| 2026-07-07 | CSN5093 | - | Jul 7, 09:20 UTC | Jul 8, 05:05 UTC | 19h 45m |
| 2026-07-07 | CSN3081 | - | Jul 7, 05:45 UTC | Jul 7, 07:55 UTC | 2h 10m |
| 2026-07-06 | CSN306 | AKL → CAN | Jul 6, 20:15 UTC | Jul 6, 20:35 UTC | 20m |
| 2026-07-06 | CSN306 | AKL → CAN | Jul 6, 09:35 UTC | Jul 6, 19:30 UTC | 9h 55m |
| 2026-07-05 | CSN305 | - | Jul 5, 18:20 UTC | Jul 6, 04:10 UTC | 9h 50m |
| 2026-07-05 | CSN350 | - | Jul 5, 06:50 UTC | Jul 5, 07:10 UTC | 20m |
| 2026-07-05 | CSN349 | - | Jul 5, 04:20 UTC | Jul 5, 04:50 UTC | 30m |
| 2026-07-02 | CSN8069 | - | Jul 2, 09:25 UTC | Jul 2, 20:50 UTC | 11h 25m |
| 2026-07-01 | CSN8069 | - | Jul 1, 22:20 UTC | Jul 2, 20:50 UTC | 22h 30m |
| 2026-07-01 | CSN8069 | - | Jul 1, 21:45 UTC | Jul 2, 20:15 UTC | 22h 30m |
| 2026-07-01 | CSN8069 | - | Jul 1, 18:20 UTC | Jul 2, 18:15 UTC | 23h 55m |
| 2026-07-01 | CSN8050 | - | Jul 1, 16:20 UTC | Jul 2, 13:35 UTC | 21h 15m |
| 2026-07-01 | CSN8049 | - | Jul 1, 06:25 UTC | Jul 1, 13:25 UTC | 7h 0m |
| 2026-06-30 | CSN8066 | - | Jun 30, 11:50 UTC | Jul 1, 09:40 UTC | 21h 50m |
| 2026-06-30 | CSN8065 | - | Jun 30, 03:20 UTC | Jun 30, 03:40 UTC | 20m |
| 2026-06-29 | CSN8065 | - | Jun 29, 22:05 UTC | Jun 30, 02:45 UTC | 4h 41m |
| 2026-06-27 | CSN634 | - | Jun 27, 15:19 UTC | Jun 27, 19:59 UTC | 4h 40m |
| 2026-06-26 | CSN633 | - | Jun 26, 18:20 UTC | Jun 26, 22:55 UTC | 4h 35m |
| 2026-06-23 | CSN304 | - | Jun 23, 21:24 UTC | Jun 24, 03:55 UTC | 6h 30m |
| 2026-06-23 | CSN303 | - | Jun 23, 10:55 UTC | Jun 23, 17:50 UTC | 6h 55m |
| 2026-06-22 | CSN303 | - | Jun 22, 19:54 UTC | Jun 23, 17:50 UTC | 21h 55m |
| 2026-06-22 | CSN303 | - | Jun 22, 17:44 UTC | Jun 23, 16:14 UTC | 22h 30m |
| 2026-06-22 | CSN391 | - | Jun 22, 12:44 UTC | Jun 22, 15:20 UTC | 2h 35m |
| 2026-06-22 | CSN354 | - | Jun 22, 08:54 UTC | Jun 22, 09:10 UTC | 15m |
| 2026-06-22 | CSN354 | - | Jun 22, 06:00 UTC | Jun 22, 06:25 UTC | 25m |
| 2026-06-22 | CSN353 | - | Jun 22, 03:30 UTC | Jun 22, 03:50 UTC | 20m |
| 2026-06-22 | CSN353 | - | Jun 22, 00:50 UTC | Jun 22, 01:05 UTC | 15m |
| 2026-06-21 | CSN392 | - | Jun 21, 17:35 UTC | Jun 21, 19:39 UTC | 2h 5m |
| 2026-06-21 | CSN391 | - | Jun 21, 12:49 UTC | Jun 21, 15:15 UTC | 2h 25m |
| 2026-06-21 | CSN354 | - | Jun 21, 09:20 UTC | Jun 21, 09:35 UTC | 15m |
| 2026-06-21 | CSN354 | - | Jun 21, 06:29 UTC | Jun 21, 06:50 UTC | 20m |
| 2026-06-21 | CSN353 | - | Jun 21, 03:44 UTC | Jun 21, 03:59 UTC | 15m |
| 2026-06-21 | CSN353 | - | Jun 21, 01:10 UTC | Jun 21, 01:19 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-1128 page for operator, model, and routing details .